Untitled - Welcome to Elsevier Digital
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Untitled - Welcome to Elsevier Digital
THE BREAST Editor-in-Chief Fatima Cardoso, Champalimaud Cancer Centre, Lisbon, Portugal Co-Editors Alberto Costa, Canton Ticino Breast Unit, Lugano, Switzerland Nehmat Houssami, University of Sydney, Sydney, Australia Specialty Editor Epidemiology and prevention Surgery and gynaecology Imaging, screening and early diagnosis Medical oncology and translational medicine Pathology Psycho-oncology Radiation Oncology Nursing and Quality of Life Advocacy Translational Research Australasian Society for Breast Disease Representative EUSOMA – European Society of Breast Cancer Specialists Representative St Gallen Conferences Representatives Breast Centres Network Representative E. Negri, Milan, Italy M.J. Cardoso, Lisbon, Portugal A. Rody, Luebeck, Germany N. Houssami, Sydney, Australia E. Senkus-Konefka, Gdansk, Poland P. Francis, Melbourne, Australia G. Pruneri, Milan, Italy L. Travado, Lisbon, Portugal P. Poortmans, Nijmegen, The Netherlands Y. Wengström, Stockholm, Sweden S. Knox, Milan, Italy S. Di Cosimo, Milan, Italy R. Stuart-Harris Canberra, Australia J. Harvey Perth, Australia C. Markopoulos Athens, Greece B. Thürlimann St Gallen, Switzerland H.J. Senn St Gallen, Switzerland C. Tinterri Milan, Italy International Advisory Board Chairs: Monica Morrow New York, USA B. Anderson Seattle, USA J. Apffelstaedt Tygerberg, South Africa R.A. Badwe Mumbai, India G. de Bock Groningen, The Netherlands J. Bogaert Brussels, Belgium H. Bonnefoi Bordeaux, France M. Brennan Sydney, Australia G. de Castro Sao Paulo, Brazil R.E. Coleman Sheffield, UK T. Cufer Slovenia S. Delalogue Villejuif, France J. M. Dixon Edinburgh, Scotland S. Duffy London, UK L.E.M. Duijm Nijmegen, Netherlands N. El Saghir Beirut, Lebanon J. Garber Boston, USA W. Gatzemeier Milan, Italy Hirotaka Iwase Kumamoto, Japan J.Gligorov Paris, France I.C. Henderson San Antonio, USA A. Howell Manchester, UK B. Kaufman Ramat Gan, Israel M. Kaufmann Frankfurt, Germany N. Kearney Stirling, UK H. de Koning Eindhoven, The Netherlands S. Kyriakides Nicosia, Cyprus F. Levi Lausanne, Switzerland L. Lusa Ljubljana, Slovenia S. Michiels Brussels, Belgium S. Ohno Fukuoka, Japan M. Paesmans Belgium O. Pagani Lugano, Switzerland X. Paoletti Paris, France G. Pond Hamilton, Canada K. Pritchard Toronto, Canada C. Rageth Zurich, Switzerland M. Roselli Del Turco Florence, Italy I. Rubio Barcelona, Spain V. Sacchini New York, NY, USA K. Sandelin Stockholm, Sweden F. Sardanelli Milan, Italy G. Schwartsmann Porto Alegre, Brazil V. Semiglazov St. Petersburg, Russia L. Solin Philadelphia, USA E. Tagliabue Milan, Italy U. Veronesi Milan, Italy D.A. Vorobiof Johannesburg, S.A. M.G. Wallis Cambridge, UK A. Wardley Manchester, UK N. Williams London, UK Y. Yarden Israel S. Zackrisson Malmö, Sweden J. Žgajnar Ljubljana, Slovenia www.elsevier.com/brst An Associate Journal of the Australasian Society for Breast Disease: www.asbd.org.au Affiliated with the European Society of Breast Cancer Specialists: www.eusoma.org Official Journal of Breast Centres Network: www.BreastCentresNetwork.org Amsterdam • Boston • London • New York • Oxford • Paris • Philadelphia • San Diego • St Louis VOLUME 24 SUPPLEMENT 3 November 2015 Advanced Breast Cancer Third International Consensus Conference - Abstract Book Welcome General Information High Patronage Endorsement and Auspices Sponsors Award Chairs and Panel Members Breast Cancer Patient Advocacy Programme Programme Sponsored satellite symposia Abstract Presenters Poster Session Invited Abstracts Abstracts – Nursing and Advocacy Abstracts - Clinical Issues: Medical Oncology Abstracts – Clinical Issues: Radiation Oncology Abstracts – Clinical Issues: Surgical Oncology Abstracts – Clinical Issues: Supportive and Palliative Care Abstracts – Clinical Issues: Other Topics Abstracts – Basic and Translational Research Disclosure of Conflict of Interest Authors Index Abstract List S1 S2 S3 S3 S4 S6 S6 S8 S9 S14 S16 S18 S21 S34 S39 S54 S57 S60 S63 S65 S76 S78 S82 Guide for Authors Submission to The Breast proceeds totally online via the Elsevier Editorial System page of this journal at http://ees.elsevier.com/thebreast/. Authors will be guided through the creation and uploading of the various files. Once the uploading is done, the system automatically generates an electronic (PDF) proof, which is then used for reviewing. All correspondence, including the Editor’s decision and request for revisions, will be by e-mail. Authors may send queries concerning the submission process, manuscript status, or journal procedures to the editorial office at [email protected] Available online at www.sciencedirect.com Indexed/abstracted in: Index Medicus, MEDLINE, ABI/Inform, Current Awareness in Biological Sciences, Current Contents/Clinical Medicine, EMBASE, Excerpta Medica National Library of Medicine (MEDLARS and MEDLINE), Research Alert, SCISEARCH, Science Citation Index, Scopus Amsterdam • Boston • London • New York • Oxford • Paris • Philadelphia • San Diego • St Louis Aims and Scope The Breast is an international, multidisciplinary journal for clinicians, which focuses on translational and clinical research for the advancement of breast cancer prevention and therapy. The Editors welcome the submission of original research articles, systematic reviews, viewpoint and debate articles and correspondence on all areas of pre-malignant and malignant breast disease, including: • • • • • • • • • • • • • Surgery Medical oncology and translational medicine Radiation oncology Breast endocrinology Epidemiology and prevention Gynecology Imaging, screening and early diagnosis Pathology Psycho-oncology and quality of life Advocacy Supportive and palliative care Nursing Research and management in countries with limited resources The Breast is a valuable source of information for surgeons, medical oncologists, gynecologists, radiation oncologists, endocrinologists, epidemiologists, radiologists, pathologists, breast care nurses, breast cancer advocates, psychologists and all those with a special interest in breast cancer. Author enquiries You can track your submitted article at http://help.elsevier.com/app/answers/detail/a_id/89/p/8045/. 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The Breast 24 S3 (2015) S1 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Welcome Dear Colleagues, The International Consensus Conference for Advanced Breast Cancer (ABC) has established itself as a major international breast cancer conference. Its primary aim is the development of international consensus guidelines for the management of ABC patients. These guidelines are based on the most up-to-date evidence and can be used to guide treatment decision making in many different health care settings globally, with the necessary adaptations due to different access to care. The last meeting, which took place in Lisbon, Portugal in November 2013, brought together over 1000 participants from 71 countries around the world, including health professionals, patient advocates and journalists. ABC Consensus Conferences have the ambitious goal of improving outcomes for all patients with advanced breast cancer. We believe that health professionals working closely together with patient advocates and with the strong support of media can raise awareness about the needs and challenges faced by this traditionally underserved and forgotten group of patients. We aim to identify research priorities based on the most important areas of unmet need, analyse and discuss available data to provide the most accurate management recommendations, but also to influence policy makers and funding bodies and ultimately improve standards of care, survival and quality of life. Research and education, with accurate usage of available knowledge, throughout the world, are key to achieve these goals. ABC guidelines are jointly developed by ESO (European School of Oncology) and ESMO (European Society of Medical Oncology) and guidelines or ABC conferences have been endorsed and 0960-9776/© 2015 Elsevier Ltd. All rights reserved. supported by several other international oncology organizations such as ESGO (European Society of Gynaecological Oncology), EUSOMA (European Society of Breast Cancer Specialists), ESTRO (European Society for Radiotherapy and Oncology), UICC (Union International Contre le Cancer), SIS (Senologic International Society)/ISS (International School of Senology), FLAM (Federacion Latino-Americana de Mastologia), OECI (Organization of European Cancer Institutes), Susan G. Komen® and BCRF (Breast Cancer Research Foundation). Furthermore, the ABC3 faculty includes official representatives appointed by ASCO (American Society of Clinical Oncology). It is therefore with great enthusiasm that we welcome you to attend the Advanced Breast Cancer Third International Consensus Conference (ABC3). We strongly believe that together we will dramatically change the poor outcome of this disease and improve both the quality and length of life of all patients living with ABC worldwide. Through our dedicated efforts over this last decade, we can certainly say to every ABC patient "You are no longer forgotten, but you are still our heroes!" [1]. Fatima Cardoso, Eric P. Winer, Larry Norton and Alberto Costa Conference Chairs [1] *Metastatic breast cancer patients: The forgotten heroes! The Breast 2009;18:271–272. The Breast 24 S3 (2015) S2–S3 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t General Information Venue ABC3 will be held at the CCL - Centro de Congressos de Lisboa, Praça das Industrias, Lisbon, Portugal. Official Carrier ESO is grateful to Star Alliance™ members airlines who supported the conference as Official Carrier and offered discounted fares to our participants. Acknowledgements A BC 3 1 European School of Oncology, Via Turati, 29 20121 Milano, Italy. ph +39 02 85464 532 fx +39 02 85464 545 www.abc-lisbon.org www.eso.net 2 European School of Oncology, Piazza Indipendenza 2, 6500 Bellinzona, Switzerland ph +41 91 820 0950 fx +41 91 820 0953 www.abc-lisbon.org www.eso.net 3 Viagens Abreu SA, Av. 25 de Abril, 2 2799-556 Linda-a-Velha, Portugal ph +351 21 415 6120 fx +351 21 415 6383 No smoking policy ABC3 is a tobacco-free event. All participants are kindly asked to respect the no-smoking policy. ESO wishes to express its appreciation and gratitude to the ABC3 Chairs for their support and vision in establishing this conference, all faculty members and panellists for their commitment and contribution to the programme, to The Breast and CancerWorld for their partnership in this initiative. CME Accreditation and Certificates Organisational Team The event has been accredited by the European Accreditation Council for Continuing Medical Education (EACCME) to provide the following CME activity for medical specialists. The EACCME is an institution of the European Union of Medical Specialists (UEMS). The evaluation of the event has been performed by the Accreditation Council of Oncology in Europe (ACOE) that acknowledged the quality of the scientific programme and its educational value. Abstract submission Dolores Knupfer (2) [email protected] Registration Register online at www.abc-lisbon.org Luis Carvalho (2) [email protected] Laura Richetti (2) [email protected] Accommodation and Optional tours Helder Carvalho (3) [email protected] Organisation Chatrina Melcher (2) [email protected] Programme Secretariat Dolores Knupfer (2) [email protected]; Alexandra Zampetti (2) [email protected] Exhibition, satellite symposia and sponsorship Francesca Marangoni (1) [email protected] Communication Gabriele Maggini (2) [email protected] 0960-9776/© 2015 Elsevier Ltd. All rights reserved. Participants will be entitled to receive a certificate of attendance at the close of the Conference by completing the online evaluation questionnaire. The event is designated for a maximum of 12 European CME credits (ECMEC). Through an agreement between UEMS and the American Medical Association, physicians may convert EACCME credits to an equivalent number of AMA PRA Category 1 Credits™. Furthermore, the conference has been accredited with 11 ESMOMORA category 1 points. General Information / The Breast 24 S3 (2015) S2–S3 S3 Third Party Media Policy Abstract Book The policy applies to all activities related to the news media during or in connection with ABC3 and is posted at www.abclisbon.org/pagine-interne/third-party-media-policy.html. The aim is to ensure that information distributed to the journalists is accurate and is issued at the correct times, complying with any embargoes that may be in place. The policy applies to media events that are organised at the ABC3 venue and off-site, and all third parties are requested to adhere. This book includes abstracts submitted by the invited speakers and those proposed by the participants that were accepted for oral presentation, poster presentation or publication. Abstracts were received for seven categories: • Advanced breast cancer – Basic and translational research • Advanced breast cancer – Nursing and advocacy • Advanced breast cancer – Clinical issues: Medical oncology • Advanced breast cancer – Clinical issues: Radiation oncology • Advanced breast cancer – Clinical issues: Surgical oncology • Advanced breast cancer – Clinical issues: Supportive and palliative care • Advanced breast cancer – Clinical issues: Other topics A prefix has been added to the abstract number to identify the type of presentation or acceptance: IN: Abstracts submitted by the invited speakers OR: Abstracts accepted for oral presentations BP: Abstracts accepted as best poster presentations PO: Abstracts accepted for poster presentations PR: Abstracts accepted for inclusion in the abstract book (not presented at the conference) The Breast 24 S3 (2015) S4 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t High Patronage The European School of Oncology is proud to announce that the Conference is held under the High Patronage of His Excellency the President of the Portuguese Republic and that Mrs. Maria Cavaco Silva, First Lady of the Portuguese Republic will welcome ABC3 participants to Lisbon and open the Conference. Endorsement and Auspices ESO is pleased to announce that also the ABC3 guidelines will be developed jointly by ESO and ESMO and published simultaneously in The Breast and Annals of Oncology journals. Furthermore, the ABC3 conference is endorsed by: FEDERACIÓN LATINOAMERICANA DE MASTOLOGIA held with support from is CME accredited by under the auspices of and FEDERACIÓN The ABC3 guidelines are LATINOAMERICANA DE MASTOLOGIA endorsed by The ABC3 faculty includes official representatives appointed by 0960-9776/© 2015 Elsevier Ltd. All rights reserved. labelled and will be submitted for endorsement to The Breast 24 S3 (2015) S5 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Sponsors (as of September 2015) ESO wishes to extend its appreciation to the following sponsors for having granted their participation and support to ABC3: Travel grants, support to the conference and to the patient advocacy activities Participating organisations and companies 0960-9776/© 2015 Elsevier Ltd. All rights reserved. The Breast 24 S3 (2015) S6–S7 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Award ABC Award The ABC Award is aimed at recognising a researcher, physician, nurse or patient advocate who has made an outstanding and impacting contribution in the field of advanced breast cancer throughout his/her career. The first ABC Award - in recognition of his work on discovering fundamental, clinically-relevant biological and molecular mechanisms for metastases including site specificity, latency, self-seeding and the role of the microenvironment in colonization and drug resistance - was assigned to Joan Massagué. ESO is pleased to announce that, in recognition for his work on metastatic breast cancer, especially improving the management of metastatic cancer to bone, resulting in preservation and improvement in quality of life of patients worldwide, the second ABC Award - will be assigned to Robert E. Coleman. The Award Ceremony and Lecture are scheduled on Thursday, 5 November at 17:40. ABC3 Award selection committee Monica Castiglione, Department of Medicine, Geneva University, Geneva, CH Gabriel N. Hortobagyi, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, US Musa Mayer, AdvancedBC.org, New York, US Chairs and Panel Members Chairs Fatima Cardoso, Breast Cancer Unit, Champalimaud Cancer Center, Lisbon, PT Alberto Costa, Scientific Director, European School of Oncology, Milan, IT and Bellinzona, CH Larry Norton, Breast Cancer Programs, Memorial SloanKettering Cancer Centre, New York, US Eric P. Winer, Breast Oncology Center, Dana-Farber Cancer Institute, Boston, US Faculty and Panel Members Matti S. Aapro, IMO Clinique De Genolier, Institut Multidisciplinaire d'Oncologie, Genolier, CH Fabrice André, Department of Medical Oncology,Gustave Roussy Institute, Villejuif, FR Sam Aparicio, Department of Breast and Molecular Oncology, University of British Columbia and the BC Cancer Agency, Vancouver, CA Carlos H. Barrios, Department of Medicine, PUCRS School of Medicine, Porto Allegre, BR Marc Beishon, Cancer World, London, UK Jonas Bergh, Department of Oncology Pathology, Karolinska Institute, Stockholm, SE Gouri S. Bhattacharyya, Department of Medical Oncology, Fortis Hospital, Kolkata, IN Laura Biganzoli, Department of Medical Oncology, Sandro Pitigliani Oncology Centre, Prato, IT Maria João Cardoso, Breast Unit, Champalimaud Cancer Center and MamaHelp, Lisbon, PT 0960-9776/© 2015 Elsevier Ltd. All rights reserved. Lisa A. Carey, Department of Hematology and Oncology, UNC Lineberger Comprehensive Cancer Center, North Carolina, US Sarbani Chaudhuri, Pfizer Oncology, New York, US Robert E. Coleman, Academic Unit of Clinical Oncology, University of Sheffield & Weston Park Hospital, Sheffield, UK Dian “CJ” M. Corneliussen-James, METAvivor Research and Support, Annapolis, US Giuseppe Curigliano, Division of Experimental Therapeutics, European Institute of Oncology, Milan, IT Véronique Dieras, Department of Medical Oncology, Institut Curie, Paris, FR Nagi S. El Saghir, NK Basile Cancer Institute, American University of Beirut Medical Center, Beirut, LB Alexander Eniu, Department of Breast Tumors, Cancer Institute "I. Chiricuta", Cluj-Napoca, RO Lesley Fallowfield, Sussex Health Outcomes Research & Education in Cancer, Brighton & Sussex Medical School, University of Sussex, Brighton, UK Doris Fenech, Breast Care Support Group, Europa Donna Malta, Mtarfa, MT Patrick Flamen, Department of Nuclear Medicine, Jules Bordet Institute, Brussels, BE Prudence A. Francis, Division of Cancer Medicine, Peter MacCallum Cancer Centre, Melbourne, AU Karen Gelmon, Department of Medical Oncology, BC Cancer Agency, Vancouver, CA Alessandra Gennari, Department of Medical Oncology, Galliera Hospital, Genoa, IT Nadia Harbeck, Breast Center, University of Munich, Munich, DE Jens Hoffmann, EPO Experimental Pharmacology & Oncology Berlin-Buch GmbH, Berlin, DE Chairs and Panel Members / The Breast 24 S3 (2015) S6–S7 Clifford A. Hudis, Breast Medicine Service/Medicine, Memorial Sloan-Kettering Cancer Centre, New York, US Bella Kaufman, Department of Oncology, Sheba Medical Center, Tel Hashomer, IL Ian E. Krop, Breast Oncology Center, Dana-Farber Cancer Institute, Boston, US Stella Kyriakides, Europa Donna Cyprus, Nicosia, CY Musa Mayer, AdvancedBC.org, New York, US Hanneke Meijer, Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, NL Shirley A. Mertz, Metastatic Breast Cancer Network US, Inverness, US Shinji Ohno, Breast Oncology Center, Institute Hospital, Tokyo, JP Olivia Pagani, Breast Unit, Oncology Institute of Southern Switzerland, Bellinzona, CH Evi Papadopoulos, Europa Donna, Nicosia, CY Fedro A. Peccatori, Deputy Scientific Director, European School of Oncology, Milan, IT and Bellinzona, CH Frédérique Penault-Llorca, Department of Pathology, Jean Perrin Centre, Comprehensive Cancer Centre, Clermont Ferrand, FR Martine J. Piccart, Department of Medicine, Jules Bordet Institute, Brussels, BE Jean-Yves Pierga, Department of Medical Oncology, Institut Curie, Paris Cancer Center, Paris, FR Fausto Roila, Department of Medical Oncology, Monteluce Policlinic, Perugia, IT S7 Hope S. Rugo, Breast Oncology and Clinical Trials Education, UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, US Kimberly A. Sabelko, Susan G. Komen, Dallas, US Elzbieta Senkus-Konefka, Department of Oncology and Radiotherapy, Medical University of Gdansk, Gdansk, PL Lillie D. Shockney, Depts of Surgery and Oncology, Johns Hopkins Breast Center, Baltimore, US George W. Sledge, Division of Oncology, Stanford School of Medicine, Stanford, US Danielle Spence, Breast Cancer Network Australia, Camberwell, AU Richard Sullivan, Conflict & Health Research Program, Institute of Cancer Policy, London, UK Sandra M. Swain, Washington Cancer Institute, MedStar Washington Hospital Center, Washington DC, US David G. Taylor, School of Pharmacy, University College London, London, UK Christoph Thomssen, Clinic for Gynaecology, Martin-LutherUniversität, Klinikum Kröllwitz, Halle (Saale), DE Luzia Travado, Department of Psycho-Oncology, Champalimaud Clinical Centre, Lisbon, PT Andrew Tutt, Breakthrough Breast Cancer Research Unit, King’s College London and Guy’s and St Thomas’ NHS Foundation Trust, London, UK Daniel A. Vorobiof, Sandton Oncology Centre, Johannesburg, ZA Binghe Xu, Department of Medical Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, CN The Breast 24 S3 (2015) S8 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Breast Cancer Patient Advocacy Programme Representatives of breast cancer patient advocacy groups are warmly invited to participate in ABC3 and actively contribute to the scientific programme and consensus sessions. Furthermore, in collaboration with several leading breast cancer patient advocacy groups worldwide, specific additional patient advocacy have been scheduled. Breast Cancer Patient Advocacy Committee Coordinator: Fatima Cardoso, Breast Cancer Unit, Champalimaud Cancer Center, Lisbon, PT Marc Beishon, Cancer World, London,UK Maria João Cardoso, MamaHelp, Lisbon, PT Dian “CJ” M. Corneliussen-James, METAvivor Research and Support, Annapolis, US Musa Mayer, AdvancedBC.org, New York, US Shirley A. Mertz, Metastatic Breast Cancer Network US, Inverness, US Evi Papadopoulos, Europa Donna, Nicosia, CY Danielle Spence, Breast Cancer Network Australia, Camberwell, AU Kimberly A. Sabelko, Susan G. Komen, US Breast Cancer Patient Advocacy Sessions (see pages S13 to S15 for full session details) Thursday, 5 November 2015 9:00-10:30 Worldwide survey and call to action Chairs: F. Cardoso, PT and D. “CJ” M. Corneliussen-James, US 10:30-11:00 S. Ginsberg, CA and A. Craig, CA “I am Anna” Video presentation and viewing 11:00-12:30 Specific issues of young women with advanced breast cancer Chairs: E. Papadopoulos, CY and D. Spence, AU 16:15-16:40 “I am Anna” Q+A session based on the video screened in the morning S. Ginsberg, CA and A. Craig, CA 18:00-19.30 Advanced breast cancer symptom control Chairs: M.J. Cardoso, PT and S.A. Mertz. US Friday, 6 November 2015 18:30-19:30 ABC Advocacy: Wrap-up and Call to Action Chairs: M. Beishon, UK and M. Mayer, US Saturday, 7 November 2015 11:00-11:15 Report from the ABC Patient Advocacy Committee 0960-9776/© 2015 Elsevier Ltd. All rights reserved. S.A. Mertz, US The Breast 24 S3 (2015) S9–S13 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Programme Thursday, 5 November 2015 9:00-10:30 Breast cancer patient advocacy session: Worldwide survey and call to action Chairs: F. Cardoso, PT and D. “CJ” M. Corneliussen-James, US 09:00 Welcome and Introduction D. “CJ” M. Corneliussen-James, US 09:05 The mBCVision 2025 Project: Why, how and what? S. Chaudhuri, US 09:20 Main findings of the mBCVision 2025 Project F. Cardoso, PT 09:45 Main findings of the mBCVision 2025 Project: implications for patients D. “CJ” M. Corneliussen-James, US 10:05 Discussion on Call to Action points F. Cardoso, PT and D. “CJ” M. Corneliussen-James, US 9.00-10:30 Sponsored satellite symposium 1 To be confirmed (see page 17) 10:30-11:00 Coffee break 10:30-11:00 Breast cancer patient advocacy session “I am Anna” Video presentation and viewing S. Ginsberg, CA and A. Craig, CA 11:00-12:30 Breast cancer patient advocacy session: Specific issues of young women with advanced breast cancer Chairs: E. Papadopoulos, CY and D. Spence, AU 11:00 Introduction E. Papadopoulos, CY 11:15 Presentation of key issues L. Travado, PT • • • Relationships/ sexuality/personality/social image – how women relate to themselves, their partners and their social networks Practical issues- work, finances, home support, including childcare Emotional concerns of those close to you, including children, partners, parents 11:35 What are the requirements to assist women to address these issues? D. Spence, AU 11:55 Empowering women S. Kyriakides, CY 12:10 Q+A session D. Spence, AU 12:25 Closing remarks D. Spence, AU 11:00-12:30 Sponsored satellite symposium 2 (see page 17) 12:30-13:30 Lunch 0960-9776/© 2015 Elsevier Ltd. All rights reserved. S10 Programme / The Breast 24 S3 (2015) S9–S13 13:30-14:25 Opening session Chairs: F. Cardoso, PT and L. Norton, US 13:30 Welcome to Lisbon M. Cavaco Silva, First Lady of the Portuguese Republic 13:40 Opening and introduction F. Cardoso, PT 14:00 Keynote lecture: METAvivor: fighting prejudice! [abstract IN02] D. “CJ” M. Corneliussen-James, US 14:25-15:30 Optimal management of HER-2+ ABC Chairs: S. Ohno, JP and E.P. Winer, US 14:25 Is there an optimal treatment sequence? 14:40 Resistance to anti-HER-2 agents: what's new [abstract IN04] I.E. Krop, US 14:55 Long term survivors specific issues [abstract IN05] K. Gelmon, CA 15:10 Long term survivors: living on borrowed time [abstract IN06] S.A. Mertz, US 15:25 Discussion 15:30-16:15 Best abstract presentations Chairs: A. Costa, IT/CH and K.A. Sabelko, US 15:30 Unmet psychosocial and quality of life needs of patients living with metastatic breast cancer (abstract OR37) M. Hurlbert, US 15:45 No impact of increasing symptoms on quality of life? Longitudinal data from the German MALIFE-Project on patients receiving monochemo- and endocrine treatment for advanced breast cancer – results from the TMK registry group (abstract OR51) N. Marschner, DE 16:00 CTL and IgG response to tumor-associated antigens as predictive factors of therapeutic peptide vaccination for patients with metastatic recurrent breast cancer (abstract OR128) U. Toh, JP 16:15-16:40 Coffee break 16:15-16:40 Breast cancer patient advocacy session “I am Anna” Q+A session based on the video screened in the morning (*) [abstract IN03] S.M. Swain, US S. Ginsberg, CA and A. Craig, CA * “I am Anna”: The video tells the insightful story of Anna Craig: a mother, wife, artist, architect and young woman living with metastatic breast cancer. The film follows Anna’s inspiring journey to create her legacy by building an addition to her house that fulfils her artistic dreams and leaves something special for her family. Through this process we also watch her help to build a support network for young metastatic women. I AM ANNA is produced by Rethink Breast Cancer. The video is screened in the morning and, in the afternoon, the presenters will hold a questions and answers session. 16:40-17:40 New drugs, new side effects Chairs: E. Papadopoulos, CY and E. Senkus-Konefka, PL 16:40 Endocrine [abstract IN07] A. Eniu, RO 16:55 Pulmonary [abstract IN08] H.S. Rugo, US 17:10 Immunologic alterations [abstract IN09] C.H. Barrios, BR 17:25 The role of Patient Reported Outcomes [abstract IN10] L. Fallowfield, UK 17:40-18:00 ABC Award and Lecture: Living with metastatic bone disease – the positive impact of bone-targeted treatments [abstract IN1 ] Chair: L. Norton, US Awardee: R.E. Coleman, UK Programme / The Breast 24 S3 (2015) S9–S13 18:00-19:30 Breast cancer patient advocacy session: Advanced breast cancer symptom control Chairs: M.J. Cardoso, PT and S.A. Mertz. US 18:00 Pain medication: Is it universally available to ABC Patients? Is it a patient and/or human right in ABC? A. Eniu, RO 18:20 Discussion M.J. Cardoso, PT and S.A. Mertz. US 18:45 Barriers to Active Patient Reporting of Quality of Life Symptoms/Outcomes In the ABC Setting L. Fallowfield, UK 19:05 Discussion M.J. Cardoso, PT and S.A. Mertz. US 18:00-19:30 Sponsored satellite symposium 3 (see page 17) 19:30 Welcome cocktail Friday, 6 November 2015 9:00-10:00 Revolutionizing ER+ ABC management Chairs: M.J. Piccart, BE and B. Xu, CN 9:00 The role of CDK and PI3K/mTOR inhibitors [abstract IN12] F. André, FR 9:20 ESR1 and other suspects in resistance [abstract IN13] V. Dieras, FR 9:35 Is ovarian ablation mandatory in pre-menopausal ER+ ABC patients? [abstract IN14] J. Bergh, SE 9:50 Discussion 10:00-10:30 Coffee break 10:30-11:35 Triple negative: is hope around the corner? Chairs: N.S. El Saghir, LB and E.P. Winer, US 10:30 Current optimal management [abstract IN15] L.A. Carey, US 10:45 Resurrecting PARP inhibition [abstract IN16] A. Tutt, UK 11:00 Can immune-based therapies be the key? [abstract IN17] G. Curigliano, IT 11:15 The role of androgen receptor and its inhibitors [abstract IN18] C.A. Hudis, US 11:30 Discussion 11:35-12:05 New technologies and new techniques Chairs: L.A. Carey, US and F.A. Peccatori, IT 11:35 New tools in nuclear medicine: what can they offer for ABC patients [abstract IN19] P. Flamen, BE 11:50 New radiotherapy techniques: application in ABC [abstract IN20] H. Meijer, NL 12:05 Discussion 12:10-12:40 Supportive and palliative care Chairs: L. Biganzoli, IT and D. Spence, AU 12:10 Optimal management of fatigue [abstract IN21] F. Roila, IT 12:25 Dyspnea: the hardest symptom to control? [abstract IN22] M.S. Aapro, CH 12:40 Discussion 12:45-13:45 Lunch and poster session (details are available on page 21) S11 S12 Programme / The Breast 24 S3 (2015) S9–S13 13:45 Biology, biology, biology! Chairs: L. Norton, US and F. Penault-Llorca, FR 13:45 Circulating tumor cells and tumor DNA: are liquid biopsies a dream? [abstract IN23] J.Y. Pierga, FR 14:05 Intra-tumor heterogeneity: challenges and solutions [abstract IN24] S. Aparicio, CA 14:25 Patient xenograph models: can an "avatar" help? [abstract IN25] J. Hoffmann, DE 14:40-15:45 Clinical dilemma’s in ABC Chairs: B. Kaufman, IL and D.A. Vorobiof, ZA 14:40 Biopsy, rebiopsy and dealing with discordant results [abstract IN26] N. Harbeck, DE 14:55 Is there an optimal sequence of systemic anticancer agents? [abstract IN27] P.A. Francis, AU 15:10 Until when should ABC be treated? [abstract IN28] A. Gennari, IT 15:25 Surgery of the primary tumor: should the recommendation be changed? [abstract IN29] M.J. Cardoso, PT 15:40 Discussion 15:45-16:15 Coffee break 16:15-17:00 Survivorship in ABC Chairs: D. Fenech, MT and C. Thomssen, DE 16:15 What are the main issues? [abstract IN30] O. Pagani, CH 16:30 Addressing the needs of ABC patients [abstract IN31] L.D. Shockney, US 16:45 Surviving ABC: the patient voice [abstract IN32] E. Papadopoulos, CY 17:00-18:00 Affordability and access to care Chairs: F. Cardoso, PT and M. Mayer, US 17:00 The cost of advanced breast cancer [abstract IN33] R. Sullivan, UK 17:15 Are drugs really the main issue? [abstract IN34] D.G. Taylor, UK 17:30 Can we really apply international guidelines in limited resources countries? [abstract IN35] G.S. Bhattacharyya, IN 17:45 Is a two-speed (rich vs poor) oncology inevitable? [abstract IN36] G.W. Sledge, US 18:00-19:30 Breast cancer patient advocacy session: ABC Advocacy: Wrap-up and Call to Action 18:00-19:30 Sponsored satellite symposium 4 (see page 21) Chairs: M. Beishon, UK and M. Mayer, US Saturday, 7 November 2015 8:30-10:30 Consensus session (part I) 10:30-11:00 Coffee break 11:00-11:15 Report from ABC Patient Advocacy Committee S.A. Mertz, US 11:15-12:45 Consensus session (part II) ABC3 Chairs and Panellists 12:45-13:00 Close A/V Recording during the Conference is prohibited. ABC3 Chairs and Panellists Programme / The Breast 24 S3 (2015) S9–S13 Consensus Panellists (September 2015) Matti S. Aapro, CH Fabrice André, FR Carlos H. Barrios, BR Jonas Bergh, SE Gouri S. Bhattacharyya, IN Laura Biganzoli, IT Fatima Cardoso, PT Maria Joao Cardoso, PT Alberto Costa, CH/IT Dian ”CJ” Corneliussen-James, US Giuseppe Curigliano, IT Véronique Dieras, FR Nagi S. El Saghir, LB Alexander Eniu, RO Lesley Fallowfield, UK Doris Fenech, MT Patrick Flamen, BE Prudence A. Francis, AU Karen Gelmon, CA Alessandra Gennari, IT Nadia Harbeck, DE Clifford A. Hudis, US Bella Kaufman, IL Musa Mayer, US Hanneke Meijer, NL Shirley A. Mertz, US Larry Norton, US Shinji Ohno, JP Olivia Pagani, CH Evi Papadopoulos, CY Fedro A. Peccatori, IT Frédérique Penault-Llorca, FR Martine J. Piccart, BE Jean-Yves Pierga, FR Hope S. Rugo, US Elzbieta Senkus-Konefka, PL Lillie D. Shockney, US George W. Sledge, US Sandra M. Swain, US Christoph Thomssen, DE Andrew Tutt, UK Daniel A. Vorobiof, ZA Eric P. Winer, US Binghe Xu, CN S13 The Breast 24 S3 (2015) S14–S15 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Sponsored satellite symposia (as of September 2015) Thursday, 5 November 2015 9:00-10:30 Sponsored satellite symposium 1 - To be confirmed 11:00-12:30 Sponsored satellite symposium 2 Novartis Oncology Treatment strategies for optimizing the treatment experience for patients with advanced breast cancer: shared decisionmaking and effective clinical management Chair: J. Cortés, ES 11:00 Welcome and introduction J. Cortés, ES 11:05 Pathways to endocrine resistance in HR+ aBC G. Arpino, IT 11:20 Dual blockade strategies to enhance endocrine sensitivity in HR+ aBC T. Bachelot, FR 11:45 Maximizing treatment benefit from dual blockade in HR+ aBC J. Cortés, ES 12:10 The changing landscape of HR+ aBC G. Arpino, IT 12:20 Interactive panel discussion and close All speakers Symposium faculty: Grazia Arpino, University of Naples Federico II, Naples, IT Thomas Bachelot, Centre Léon-Berard, Lyon, FR Javier Cortés, Vall d’Hebron University Hospital, Barcelona, ES 18:00-19:30 Sponsored satellite symposium 3 Pfizer Oncology Advances in ER+ HER2- breast cancer: targeting the cell cycle Chair: A. Di Leo, IT 18:00 Welcome and introduction A. Di Leo, IT 18:10 Improving outcomes in metastatic breast cancer patients: changing perceptions J. Gralow, US 18:30 Metastatic breast cancer: beyond standard endocrine therapy J. Crown, IR 18:50 New treatment algorithms: focusing on patients’ needs A. Llombart-Cussac, ES 19:20 Closing remarks and Q&A All speakers Symposium faculty: John Crown, National Institute for Cellular Biotechnology, Dublin City University, Dublin, IR Angelo Di Leo, Istituto Toscano Tumori, Hospital of Prato, Prato, IT Julie Gralow, Seattle Cancer Care Alliance, University of Washington, Seattle, US Antonio Llombart-Cussac, Hospital Arnau de Vilanova, Valencia, ES 0960-9776/© 2015 Elsevier Ltd. All rights reserved. Sponsored satellite symposia / The Breast 24 S3 (2015) S14–S15 Friday, 6 November 2015 18:00-19:30 Sponsored satellite symposium 4 Eisai What’s new since ABC2? Recent advances in chemotherapy for ABC Chair: X. Pivot, FR Moderator: E.C. Antoine, FR 18:00 Welcome and introductions X. Pivot, FR 18:05 Decision making in chemotherapy: where are we now? X. Pivot, FR 18:25 New data for a new authorisation in second-line ABC E.C. Antoine, FR 18:45 From clinical trials to clinical practice - level of evidence J.M. Grouin, FR 19:10 Panel discussion and conclusions All speakers Symposium faculty: Eric-Charles Antoine, Institut du Sein – Henri Hartmann, Paris, FR Jean-Marie Grouin, Université de Rouen, Rouen, FR Xavier Pivot, Centre Hospitalier Universitaire, Hôpital Jean Minjoz, Besançon, FR S15 The Breast 24 S3 (2015) S16–S17 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Abstract Presenters Sala Abdalla, University Hospital Lewisham, Department of General Surgery, London, UK Roberto Agresti, Istituto Nazionale dei Tumori, Breast Surgery Unit, Milano, IT Medhat M. Anwar, Medical Research Institute University of Alexandria, Experimental and Clinical Surgery Department, Alexandria, EG Rania Azmi, “Survive & Thrive” Initiative, For Cancer Patients Support, Salmiya, KW Thomas Bachelot, Centre Léon Bérard, Breast Cancer Unit and Clinical Trial Unit, Lyon FR Francesca Balena, Europa Donna Italia, MBC Working Group, Milano, IT Jodie E. Battley, Cork University Hospital, Medical Oncology, Cork, IE Carol Ann Benn, Helen Joseph Breast Care Clinic, Johannesburg ZA and University of the Witwatersrand, Faculty of Health Sciences, Department of Surgery, Johannesburg, ZA Narjiss Berrada, National Institute of Oncology, Medical Oncology Department, Rabat, MA Rita Canario, Instituto Português de Oncologia de Coimbra Francisco Gentil, Medical Oncology Department, Coimbra, PT Marina Elena Cazzaniga, San Gerardo Hospital, Medical Oncology Department, Monza, IT Niya Chari, Canadian Breast Cancer Network, Government Relations, Ottawa, CA Helen L. Coons, Women's Mental Health Associates, Health Psychology, Denver, US Maria Rita Dionisio, Hospital de Santa Maria CHLN Lisboa, Dept. of Medical Oncology, Lisbon and IPATIMUP and Instituto de Investigação e Inovação em Saúde, Cancer Genetics, Porto, PT Mahmoud A. Elhussini, Alexandria Faculty of Medicine, Surgical Oncology Unit, Alexandria, EG Fadi Farhat, Saint Joseph University, Faculty of MedicineHematology-Oncology, Beirut, LB Diana Freitas, Hospital de Braga, Medical Oncology Department, Braga, PT Miwa Fujihara, Hiroshima City Hiroshima Citizens Hospital, Breast Surgery, Moto-machi, Naka-ku, Hiroshima, JP Shawna Ginsberg, Rethink Breast Cancer, Breast Cancer Department, Toronto, CA Uwe Güth, Cantonal Hospital Winterthur, Obstetrics & Gynecology, Winterthur, CH and University Hospital Basel, Gynecology & Obstetrics, Basel, CH Wirsma A. Harahap, Medical Faculty Andalas University/Dr. M. Djamil Hospital, Department of Surgery, Padang, ID Emily Harrold, Cork University Hospital, Medical Oncology Department, Cork, IE Shoko Hayama, Chiba University, General Surgery Department, Chiba City, Japan, JP Amany Helal, National Cancer Institute, Medical Oncology, Cairo, EG Reyhane Hoshyar, Birjand University of Medical Sciences, Faculty of Medicine, Department of Biochemistry, Birjand, IR 0960-9776/© 2015 Elsevier Ltd. All rights reserved. Marc Hurlbert, Avon Foundation for Women, Breast Cancer Crusade, New York, US and Metastatic Breast Cancer Alliance, Advocacy, New York, US Jamshid Ibragimov, National Cancer Research Center, Chemotherapy Department, Tashkent, UZ Hiroki Ito, Kyorin University Hospital, Breast Surgery Department, Tokyo, JP Toshiaki Iwase, Chiba University Hospital, Breast and Thyroid Surgery, Chiba, JP Sara Jansson, Lund University, of Clinical Sciences, Division of Oncology and Pathology, Lund, SE Lika Katselashvili, Research Institute of Clinical Medicine, Department of Oncology, Tbilisi, GE Yasuko Kikuchi, International University of Health and Welfare Mita Hospital, Breast Center, Tokyo, JP Susan Knox, Europa donna - The European Breast Cancer Coalition, Milan, IT Elena Kovalenko, Russian Scientific Oncological Center, Research of New Antitumor Agents, Moscow, Russian Federation, RU Christian M. Kurbacher, Gynecologic Center Bonn-Friedensplatz, Gynecologic Oncology Department, Bonn, DE Matteo Lambertini, IRCCS AOU San Martino-IST, Department of Medical Oncology, U.O. Oncologia Medica 2, Genova, IT Maria Leadbeater, Ashgate Hospice, Macmillan Clinical Nurse Specialist Palliative Care, Old Brampton, Chesterfield, UK Roman Liubota, National Medical University named after O.O. Bogomolets, Oncology Department, Kiev, UA Norbert Marschner, Praxis für interdisziplinäre, Onkologie & Hämatologie, Interdisziplinäre Onkologie & Hämatologie,Freiburg, DE Michelle M. Martinez-Montemayor, Universidad Central del Caribe School of Medicine, Department of Biochemistry, Bayamon, PR Kazuo Matsuura, Hiroshima Prefectural Hospital, Breast Surgery, Hiroshima, JP Lori Marx-Rubiner, METAvivor Research and Support, Annapolis, US Tahir Mehmood, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Radiation Oncology, Lahore, PK Snezana Milosevic, Institute for Oncology and Radiology of Serbia, Daily Hospital for Chemotherapy, Belgrade, RS Marijana Milovic-Kovacevic, Institute for Oncology and Radiology of Serbia, Department of Medical Oncology, Belgrade, RS Giacomo Montagna, Ente Ospedaliero Cantonale, Department of Obstetrics and Gyneacology and Breast Unit of Southern Switzerland (CSSI), Lugano, CH Serafin Murillo Morales, Hospital Universitari Arnau de Vilanova de Lleida, Department of Medical Oncology, Lleida, ES Rikiya Nakamura, Chiba Cancer Center Hospital, Breast Surgery, Chuou Chiba, JP Akimasa Nishimura, Hirosaki University, Surgery, Hirosaki, JP Amanda Nobre Carvalho, Algarve Hospital Centre, Medical Oncology Department, Faro, PT Abstract Presenters / The Breast 24 S3 (2015) S16–S17 Connor O'Leary, Cork University Hospital, Department of Medical Oncology, Cork, IE Jose Pereira, Hospital Sao Francisco Xavier, Oncology and Medical Departments, Lisbon, PT Shankpal Pramod, Health Alert Organisation of India, Health Department, Garud colony, Deopur, Dhule, IN Nicoletta Provinciali, E.O. Ospedali Galliera, Division of Medical Oncology, Genoa, IT Prasanna Rammohan, Madras Medical College, Medical Oncology, Chennai, Tamilnadu, IN Ivica Ratosa, Institute of Oncology Ljubljana, Department of Radiation Oncology, Ljubljana, SI Hope S. Rugo, University of California San Francisco Comprehensive Cancer Center, Hematology/Oncology, San Francisco, US Masako Sato, NHO Hokkaido Cancer Center, Breast Surgery, Sapporo, Hokkaido, JP Danielle Spence, Breast Cancer Network Australia, Camberwell, Victoria, AU Anna Sukhotko, Moscow P.A. Gerzen's Cancer Research Institute – The National Medical Research Radiologic Center of the Ministry of Health of the Russian Federation, Department of Oncology and Reconstructive-plastic Surgery of the Breast and Skin, Moscow, RU Marie Sundquist, County Hospitals, Breast Unit Surgery, Kalmar, SE Medha Sutliff, Young Survival Coalition, National Programs, New York, US S17 Konstanta Timcheva, Women’s Health Hospital “Nadezhda”, Medical Oncology Clinic, Sofia, BG Anna Thulin, Institution of Clinical Sciences, Department of Oncology, Gothenburg, SE Uhi Toh, Kurume University School of Medicine, Department of Surgery, Kurume, JP Zoran Tomasevic, Institute for Oncology and Radiology of Serbia, Daily Hospital, Belgrade, RS Toshiaki Utsumi, Fujita Health University, Breast Surgery Department, Aichi, Toyoake, JP Marisse Venter, Breast Care Center of Excellence, Breast Oncology, Johannesburg, ZA Judy Vicente de Paolo, Portuguese Institute of Oncology, Medical Oncology Department, Coimbra, PT Neelima Vidula, University of California, San Francisco, Hematology/Oncology Department, San Francisco, US Junichiro Watanabe, Shizuoka Cancer Centre, Breast Oncology Department, Shizuoka, JP Karolina Widera, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Outpatient Clinic, Gliwice, PL Rachel Würstlein, Medical Center of the Ludwig-MaximiliansUniversity, Department for Gynecology of Obstetrics and Comprehensive Cancer Center of LMU, Munich, DE Jun Yamamura, Sakai City Hospital, Breast Surgery Department, Sakai City, JP The Breast 24 S3 (2015) S18–S19 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Poster Session BP38 BP52 BP103 BP129 PO39 PO40 PO41 PO42 PO43 PO44 PO45 PO46 PO47 PO48 PO53 PO54 PO55 PO56 PO57 PO58 PO59 PO60 PO61 PO62 PO63 PO64 PO65 PO66 PO67 PO68 PO69 PO70 PO71 PO72 PO73 Metastatic breast cancer in Canada: waiting for treatment. Niya Chari, CA Is there a different treatment response between visceral and non-visceral metastatic breast cancer: a systematic literature review of registration trials. Rachel Würstlein, DE Electrochemotherapy in the treatment of cutaneous metastases from breast cancer: a multicenter cohort analysis. Roberto Agresti, IT Insulin resistance (IR) and prognosis of metastatic breast cancer (MBC) patients. Nicoletta Provinciali, IT Effective advocacy for women with metastatic breast cancer: a European perspective. Susan Knox, IT Unmet needs of Australian women with metastatic breast cancer with financially dependent children: the consumer perspective. Danielle Spence, AU Middle Eastern ABC/MBC patients: overcoming the triple-burden of stigmatization, lack of information and recurrent illness. Rania Azmi, KW Make your dialogue count survey: addressing communication gaps between patients with advanced breast cancer, their caregivers and oncologists and understanding information and emotional needs to improve treatment and side effect management. Helen L. Coons, US “Fight, live, keep smiling”: the first Italian blog about metastatic breast cancer (MBC) addressed to the general public. A quali-quantitative analysis of all the comments posted online on the blog of the Europa Donna Italia MBC Working Group. Francesca Balena, IT In Our Shoes: raising the voices of MBC patients. Lori Marx-Rubiner, US Information needs of young women with metastatic breast cancer to manage their treatment, side effects and clinical trials. Medha Sutliff, US I AM ANNA: Exploring metastatic breast cancer through the eyes of a young woman. Shawna Ginsberg, US Identifying deficits and needs from stakeholders about palliative care issues. Shankpal Pramod, IN Terminology used in advanced breast cancer and the need for consistency. Maria Leadbeater, UK Clinical impact of metronomic oral combination chemotherapy with capecitabine and cyclophosphamide in patients with metastatic breast cancer. Miwa Fujihara, JP A retrospective multicenter observation study in metastatic breast cancer patients: comparative analysis on efficacy of eribulin mesylate with taxane regimens (including combination with bevacizumab). Yasuko Kikuchi, JP Efficacy and safety of eribulin in anthracycline and taxane-pretreated patients: Russian experience. Elena Kovalenko, RU BOLERO-4: A phase 2, open-label, multicenter, single-arm trial investigating the efficacy and safety of first-line everolimus (EVE) in combination with letrozole (LET) in postmenopausal patients (pts) with estrogen receptor–positive (ER+), human epidermal growth factor receptor 2–negative (HER2-) metastatic or locally advanced unresectable breast cancer (BC). Thomas Bachelot, FR Clinical efficacy of LH-RH analogue plus aromatase inhibitor in premenopausal women with estrogen receptor–positive advanced breast cancer: a single-institution retrospective study. Toshiaki Utsumi, JP Does previous neoadjuvant/adjuvant trastuzumab influence the disease outcome of metastatic HER2 positive breast cancer patients treated with first line trastuzumab and chemotherapy. Snezana Milosevic, RS Durable remissions with trastuzumab treatment for HER2 positive metastatic breast cancer – single center experience. Zoran Tomasevic, RS The role of lapatinib in the management of HER2-positive metastatic breast cancer: a review of a single institution’s experience during the trastuzumab and lapatinib era. Junichiro Watanabe, JP Oral vinorelbine in combination with trastuzumab as a first line therapy of metastatic or locally advanced Her2-positive breast cancer. Fadi Farhat, LB First line trastuzumab-based therapy in HER2-positive metastatic cancer patients presenting with de novo or recurrent disease: a multicenter retrospective cohort study. Matteo Lambertini, IT Cure in metastatic breast cancer: an aggressive approach does not appear to be the key to the black box. Uwe Güth, CH Metronomic chemotherapy (CHT) combination of vinorelbine (VRL) and capecitabine (CAPE) in HER2- advanced breast cancer (ABC) patients (pts) does not impair Global QoL. First results of the VICTOR-2 study. Marina Elena Cazzaniga, IT Phase II trial of metronomic combination chemotherapy with oral regimen in heavily pretreated metastatic breast cancer. Prasanna Rammohan, IN Neoadjuvant chemotherapy for locally advanced breast cancer: a solution to avoid mastectomy Mahmoud A. Elhussini, EG Neo-adjuvant hormonal therapy for locally advanced breast cancer. Lika Katselashvili, GE Triple negative breast cancer - Neoadjuvant chemotherapy response evaluation with taxane/anthracycline protocol - Single centre 5 years experience. Judy Vicente de Paolo, PT Brachial plexopathy in metastatic breast cancer: a review of patient characteristics and diagnosis in an Irish tertiary referral centre. Connor O'Leary, IE Estrogen receptor as a negative predictor of complete pathological response in HER2 positive locally advanced breast cancer. Rita Canario, PT Monitoring therapy response in metastatic breast cancer using tumour markers CA15-3 and TPS. Marie Sundquist, SE Therapeutic effect prediction based on biomarkers in the pleural effusion specimens of breast cancer patients. Rikiya Nakamura, JP Outpatient catumaxomab therapy in metastatic breast cancer patients suffering from malignant effusions due to peritoneal or pleural carcinomatosis: a single institution experience. Christian M. Kurbacher, DE 0960-9776/© 2015 Elsevier Ltd. All rights reserved. PO74 PO75 PO76 PO77 PO78 PO79 PO80 PO81 PO82 PO83 PO96 PO97 PO98 PO99 PO100 PO101 PO104 PO105 PO106 PO107 PO108 PO109 PO110 PO112 PO114 PO115 PO116 PO117 PO122 PO130 PO131 PO132 PO133 PO134 PO135 PO138 PO139 PO140 PO141 PO142 PO143 PO144 PO145 Poster Session / The Breast 24 S3 (2015) S18–S19 S19 Which is more beneficial as an initial therapy for the first distant metastasis of breast cancer: chemotherapy or endocrine therapy for hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer patients?: A single-center study. Jun Yamamura, JP The CTPET/MDST ratio: an introduction of a quantitative measure of effective palliative endocrine therapy in metastatic breast cancer. Uwe Güth, CH Therapeutic strategy for recurrent HER2-positive breast cancer patients. Akimasa Nishimura, JP Locally advanced breast cancer In young female. The Egyptian National Cancer Institute experience. Amany Helal, EG Elderly women and breast cancer: characterization of treatment practices. Diana Freitas, PT Elderly metastatic breast cancer at diagnosis: a single institution experience. Amanda Nobre Carvalho, PT Elevated neutrophil to lymphocyte ratio predicts worse survival outcome after recurrence for patients with triple negative breast cancer. Toshiaki Iwase, JP Compliance and persistence to palliative endocrine therapy in metastatic breast cancer. Uwe Güth, CH Epidemiology and therapeutic management of metastatic breast cancer in Bulgaria: a retrospective cohort study. Konstanta Timcheva, BG Current status of the management of advanced RH+/Her2- breast cancer in Morocco. Narjiss Berrada, MA Characterisation of breast cancer brain metastases through a 21-year period – a study from the Swedish Association of Breast Oncologists (SABO). Anna Thulin, SE Brain metastases in HER2- positive breast cancer patients: a single institute experience. Tahir Mehmood, PK Is brain metastases location associated with prognosis in breast cancer patients? Karolina Widera, PL Treatment outcomes of breast cancer brain metastases. Ivica Ratosa, SI IMRT-SIB for locally advanced inoperable breast cancer patients. Karolina Widera, PL Prognostic factors after gamma knife radiosurgery in breast cancer patients with brain metastases. Shoko Hayama, JP The surgical management of lung nodules in breast cancer patients. Kazuo Matsuura, JP Success and failure of primary medical, non-operative management in patients who present with stage IV breast cancer. Uwe Güth, CH N2 lymph nodes post-primary chemotherapy may predict recurrence in locally advanced breast cancer. Carol Ann Benn, ZA Surgical resection of the primary tumor is associated with increased long-term survival in patients with stage IV breast cancer. Anna Sukhotko, RU Novel and safe techniques in immediate breast reconstruction for locally advanced breast cancer, particularly inflammatory breast cancer. Marisse Venter, ZA The impact of locoregional treatment of primary metastatic breast cancer. Roman Liubota, UA Metastases of lobular breast carcinoma in the terminal ileum and ileocaecal valve. Sala Abdalla, UK Efficacy of NEPA, the first combination antiemetic agent, in patients with breast cancer receiving anthracycline/cyclophosphamide (AC) or non-AC chemotherapy. Hope Rugo, US Using of hepatoprotectors in the drug treatment of patients with advanced breast cancer. Jamshid Ibragimov, UZ The emotional toll of metastatic breast cancer on young women. Medha Sutliff, US The last quarter of a honeymoon – A wedding’s story. Jose Pereira, PT Can we make a portrait of women with inoperable locally advanced breast cancer? The experience of the Breast Unit of Southern Switzerland (CSSI). Giacomo Montagna, CH Sodium fluoride PET/CT: a superior imaging modality in evaluation of osseous metastatic disease. Emily Harrold, IE Clinical utility of the expression of HER3, HER4, PTEN and IGF1R in HER2-positive advanced or metastatic breast cancer. Hiroki Ito, JP Heterogeneity in the expression of hormone receptors and HER2 between the primary breast cancer and pulmonary metastasis. Masako Sato, JP Apoptotic activities of recombinant cell surface receptor fas within tumor microenvironment of breast carcinoma. Medhat M. Anwar, EG Differential expression of plasma membrane proteins in inflammatory breast cancer via stable isotope labeled amino acids in culture (SILAC). Michelle M. Martinez-Montemayor, PR Analysis of primary breast cancer (BC) expression of programmed cell death 1 (PD-1) receptor and programmed death ligand 1 (PD-L1) to determine associations with clinical characteristics and outcomes. Neelima Vidula, US At a glance the BRCAs epigenetic study in Padang, west Sumatera, Indonesia. Wirsma A. Harahap, ID P-cadherin: a candidate biomarker for axillary-based breast cancer decisions in clinical practice. Maria Rita Dionisio, PT Receptor activator of nuclear factor kappa B (RANK) expression in primary breast cancer correlates with recurrence free survival and development of bone metastases in the I-SPY 1 trial (CALGB 150007/150012; ACRIN 6657). Neelima Vidula, US Changing in tumor biology of triple negative breast cancer between primary and metastatic lesions. Marijana Milovic-Kovacevic, RS Sucessfull use of HER2 targeted agents in patients with heavily pretreated HER2-negative metastatic breast cancer presenting with elevated serum levels of the HER2 extracellular domain and/or HER2 overexpressing circulating tumor cells. Christian M. Kurbacher, DE Evolution of the expression of circulating tumor cells (CTC) and CK-19 mRNA (CK19) as prognostic factors in heavily pretreated metastatic breast cancer. Serafin Murillo Morales, ES Prognostic impact of circulating tumor cell clusters and apoptosis in metastatic breast cancer. Sara Jansson, SE Synergistic antitumor effects of crocin combined with hyperthermia on breast cancer cells. Reyhane Hoshyar, IR ICORG 13-01 ABC survey: are we meeting the needs of patients with advanced breast cancer (ABC) in Ireland? A nationwide survey. Jodie E. Battley, IE Disclaimer No responsibility is assumed by the organisers for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. Organisers recommend that independent verification of diagnoses, therapies and dosages should be made. Every effort has been made to faithfully reproduce the materials as submitted. However, no responsibility is assumed by the organisers for any omissions or misprints. The Breast 24 S3 (2015) S21–S75 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Invited abstracts IN01 LIVING WITH METASTATIC BONE DISEASE – THE POSITIVE IMPACT OF BONE-TARGETED TREATMENTS Robert Coleman University of Sheffield, Yorkshire Cancer Research, Sheffield, UK Bone metastases result from interactions between cancer cells in the bone marrow microenvironment and normal bone cells, with receptor activator of nuclear factor kappa B ligand (RANKL) a key mediator in this process. Growth factors and cytokines secreted by tumour cells stimulate stromal cells and osteoblasts to secrete RANKL, which, via the RANK receptor, accelerates osteoclastic bone resorption, thereby providing the rationale for bone-targeted osteoclast inhibitors as an adjunct to specific anticancer agents to both prevent and treat bone metastases. Multiple, randomised controlled trials over the past two decades have clearly demonstrated that bisphosphonates (BPs) are effective in reducing skeletal morbidity from metastatic cancer and a recent meta-analysis has helped define their role in the adjuvant setting. BPs also relieve bone pain, and improve both the physical functioning and quality of life of patients with metastatic bone disease. Zoledronic acid is the most widely used agent and and has shown superior efficacy to pamidronate in the prevention of skeletal complications in breast cancer. Oral agents such as ibandronate and clodronate also provide a useful alternative for some clinical situations. Now that these treatments are well established, efforts are underway to maximise the risk-benefits of treatment by reducing the frequency of treatment when clinically appropriate. More recently denosumab, a fully humanised monoclonal antibody that specifically inhibits RANKL, has become available and been shown to be significantly more effective than zoledronic acid, easier to administer and with some safety advantages. Other bone-targeted agents are in development. Notably, radium-223, a calcium mimic that preferentially targets bone metastases with highenergy alpha-particles has been approved for use in advanced prostate cancer. In addition to positive effects on survival, radium delayed the time to first symptomatic skeletal event over and above the effects of a BP and had a positive impact on quality of life. Development of this agent is now underway in advanced breast cancer. In summary, bone-targeted agents are an important component of the management of advanced malignancy. In combination with systemic cancer therapy, effective symptom control and appropriate surgical and radiological interventions, bone-targeted treatments have transformed the care of patients with metastatic bone disease. IN02 METAVIVOR: FIGHTING PREJUDICE CJ (Dian) Corneliussen-James Metavivor Research and Support Inc, Annapolis, USA Background: A pervasive, positive breast cancer message that metastasis can be avoided, that if caught early it can be “cured”, that only “older” women are at risk and that all will be well if “a person does everything right” has sent us down a path of late diagnoses, stigmatization of patients, horrifically low funding for ABC research and is a disease 0960-9776/© 2015 Elsevier Ltd. All rights reserved. only of older women, is being beat, that those who metastasize are themselves at fault, that that the disease, a desire to portray cancer as a disease being conquered, a message that it is an old person’s disease, we have organizations de endeavor to spread positive METAvivor is working to change that. Methods: Through international surveys and conferences, online discussion boards, meetings with cancer organizations, participation in panels and interactions with thousands of ABC patients, discussions with patients from around the world, past surveys. Results: As if the challenges of the disease were not difficult enough, ABC patients face additional prejudice on numerous fronts. Medical: Many learn of their metastasis by phone or answering machine and on the other learn by phone that nothing more can be done. Some oncologists and other specialists make little effort for ABC patients, having already written them off, and young patients with breast cancer symptoms are often told they’re too young for breast cancer and denied mammograms only to be diagnosed at stage IV. Support: ABC-specific support programs are rare; all-stage support programs tend to target early-stage and request ABC patients to not mention their disease. Cancer organizations often lack ABC materials, few have hotline-ready ABC experts, their conferences are often devoid of ABC speakers and they continue to push pink on a community that has largely rejected the color. ABC statistics are rare and often shaky. Literature, slogans and talks by local and national health services, doctors and cancer groups state breast cancer can be avoided or at least survived by doing “everything right”, unwittingly implying ABC is the fault of the patient. The public buys this making the concept pervasive. The media prefers to avoid the subject altogether or represents the disease by covering those doing well. Terminology is missing or confusing: Patients are presumably “survivors” even while dying; “metastasis” research is largely to “prevent” metastasis; the “cure” is illusive and rarely defined but when it is does not relate to ABC; and a patient advocate is someone who speaks for the patient, not a patient speaking for him/herself. Everything combines to isolate and stigmatize a patient already facing a devastating disease. Conclusion: The issue must be addressed on numerous fronts. METAvivor works with medical centers, research centers, hospitals, departments of health, public forums, pharmaceutical and biotech companies, social media, patients, caregivers, interested parties and others in an effort to change the paradigm. IN03 IS THERE AN OPTIMAL TREATMENT SEQUENCE FOR HER2 POSITIVE ADVANCED BREAST CANCER? Shagun Arora, Sandra M. Swain Washington Cancer Institute, MedStar Washington Hospital Center, Washington DC, USA Trastuzumab has converted a once rapidly-lethal malignancy into one with survival estimated in years [1,2]. Newer therapies are now in our treatment armamentarium, prompting the publication of guidelines by ASCO for HER2 driven advanced breast cancer (ABC) [3]. Is there an optimal treatment sequence? CLEOPATRA, comparing first-line docetaxel/trastuzumab/pertuzumab (THP) to placebo/docetaxel/ trastuzumab, showed an improvement in overall survival (OS) with pertuzumab by 15.7 months; median OS reached 56.5 months [4,5]. S22 Abstracts / The Breast 24 S3 (2015) S21–S75 This created a new paradigm in HER2 driven ABC with THP as the firstline treatment of choice. A phase II trial, utilizing weekly paclitaxel with trastuzumab/pertuzumab reported median progression free survival (PFS) of 19.5 months [6]. These related regimens are being compared in the PERUSE trial [NCT01572038]. MA.31 compared first-line lapatinib/ taxane to trastuzumab/taxane, with worse OS with lapatinib and no difference in time to first CNS metastases suggesting that it should not be used as first-line therapy [7]. Efficacy of T-DM1 in the first-line setting is yet to be proven in the MARIANNE study. Targeted second-line options include T-DM1 or lapatinib. EMILIA showed improved survival with second-line T-DM1 versus lapatinib/ capecitabine with mOS of 30.9 versus 25.1 months [10]. Upon progression through trastuzumab/pertuzumab, T-DM1 should be used. Following second-line, sequencing is undefined and decision should be patient-centric. If pertuzumab has not yet been utilized, its use is recommended by ASCO [3]. TH3RESA showed efficacy in >3rd line T-DM1 in pre-treated ABC, with improvements in PFS from 3.3 to 6.2 months [8]. A phase IIa trial of targeted HER2 pertuzumab and T-DM1 showed efficacy [9]. EGF104900, comparing trastuzumab/lapatinib versus lapatinib in heavily-pretreated patients who progress on trastuzumab, showed improvement in mOS of 4.5 months with dual-HER2 blockade [10,11]. These bring up two points: trastuzumab beyond progression and synergism of dual-HER2 blockade and warrant further study. Other combinations with chemotherapy such as navelbine are effective with trastuzumab. ABCs with co-expression of hormone receptor (HR) and HER2 are common and clinical data dictates HER2 amplification leads to hormonal therapy resistance [12]. The subset of patients who benefit solely from HR/HER2 blockade is yet to be defined; clinicians may consider this in highly selected patients. TAnDEM compared anastrazole/trastuzumab versus anastrazole and showed improved PFS in the combination arm (4.8 vs 2.4 months) but not in OS[13]; EGF30008 compared letrozole/ lapatinib versus letrozole and found similar PFS improvements (8.2 vs 3 months) [14]. ASCO guidelines state a first-line recommendation in HR and HER2 positive ABC is HER2 targeted therapy with chemotherapy, adding hormones upon the completion of chemotherapy, as PFS is much shorter compared to the chemotherapy regimens as above [3]. A limitation in the use of HER2 directed therapies is potential decreased cardiac function especially with previous anthracycline treatment; SAFE-HEaRt [NCT01904903] is investigating optimizing cardiac function concomitant with HER2 therapies, allowing patients to continue to receive potentially life-prolonging treatment. Additional HER2 targeted TKI, neratinib, has shown significant clinical activity. Other trials attempting to overcome trastuzumab resistance are ongoing: MM-302, an antibody-drug conjugate in HERMIONE [NCT02213744]; MM-111, targeting HER2 and HER3 [NCT01097460]; PI3K inhibitors [NCT01042925]; Hsp90 inhibitors with trastuzumab [NCT01271920]; the dual TKI/VEGFR inhibitor KD019 [NCT02154529]; and exploration of vaccines and checkpoint inhibitors. [1] Cobleigh, M., et al. Efficacy and safety of Herceptin as a single agent in 222 women with HER2 overexpression who relapsed following chemotherapy for metastatic breast cancer. in Proc Am Soc Clin Oncol. 1998. [2] Slamon, D.J., et al., Use of chemotherapy plus a monoclonal antibody against HER2 for metastatic breast cancer that overexpresses HER2. N Engl J Med, 2001;344:783-92. [3] Giordano, S.H., et al., Systemic therapy for patients with advanced human epidermal growth factor receptor 2-positive breast cancer: American Society of Clinical Oncology clinical practice guideline. J Clin Oncol, 2014;32:2078-99. [4] Baselga, J., et al., Pertuzumab plus trastuzumab plus docetaxel for metastatic breast cancer. N Engl J Med, 2012;366(2): p. 109-19. [5] Swain, S.M., et al., Pertuzumab, trastuzumab, and docetaxel in HER2positive metastatic breast cancer. N Engl J Med, 2015;372:724-34. [6] Dang, C., et al., Phase II study of paclitaxel given once per week along with trastuzumab and pertuzumab in patients with human epidermal growth factor receptor 2-positive metastatic breast cancer. J Clin Oncol, 2015;33:442-7. [7] Gelmon, K.A., et al., Lapatinib or Trastuzumab Plus Taxane Therapy for Human Epidermal Growth Factor Receptor 2-Positive Advanced Breast Cancer: Final Results of NCIC CTG MA.31. J Clin Oncol, 2015. [8] Krop, I.E., et al., Trastuzumab emtansine versus treatment of physician’s choice for pretreated HER2-positive advanced breast cancer (TH3RESA): a randomised, open-label, phase 3 trial. Lancet Oncol, 2014;15:689-99. [9] Miller, K.D., et al., Phase IIa trial of trastuzumab emtansine with pertuzumab for patients with human epidermal growth factor receptor 2-positive, locally advanced, or metastatic breast cancer. J Clin Oncol, 2014;32:1437-44. [10] Blackwell, K.L., et al., Randomized study of Lapatinib alone or in combination with trastuzumab in women with ErbB2-positive, trastuzumab-refractory metastatic breast cancer. J Clin Oncol, 2010;28:1124-30. [11] Blackwell, K.L., et al., Overall survival benefit with lapatinib in combination with trastuzumab for patients with human epidermal growth factor receptor 2-positive metastatic breast cancer: final results from the EGF104900 Study. J Clin Oncol, 2012;30:2585-92. [12] Pietras, R.J., et al., HER-2 tyrosine kinase pathway targets estrogen receptor and promotes hormone-independent growth in human breast cancer cells. Oncogene, 1995;10:2435-46. [13] Kaufman, B., et al., Trastuzumab plus anastrozole versus anastrozole alone for the treatment of postmenopausal women with human epidermal growth factor receptor 2-positive, hormone receptorpositive metastatic breast cancer: results from the randomized phase III TAnDEM study. J Clin Oncol, 2009;27:5529-37. [14] Johnston, S., et al., Lapatinib combined with letrozole versus letrozole and placebo as first-line therapy for postmenopausal hormone receptorpositive metastatic breast cancer. J Clin Oncol, 2009;27:5538-46. IN04 OPTIMAL MANAGEMENT OF HER-2+ ABC Ian E. Krop Harvard Medical School, Dana-Farber Cancer Institute, Boston, USA Amplification of the HER2/neu gene occurs in approximately 20% of invasive breast cancers and is associated with aggressive clinical behavior. The development of HER2-targeted therapies, including trastuzumab, lapatinib, pertuzumab and trastuzumab emtansine (T-DM1) has revolutionized the treatment of this disease, leading to dramatic improvements in clinical outcomes. Given these improvements, the goals in treating patients with advanced HER2positive breast cancer are to both extend survival as well as to minimize toxicities of therapy. In patients with newly diagnosed metastatic breast cancer, pertuzumab, in combination with trastuzumab and docetaxel, markedly improves survival and only mildly increases toxicity compared to trastuzumab and docetaxel. Pertuzumab, trastuzumab, and a taxane should thus be considered the standard of care for most patients in the first line setting. Endocrine therapy ± trastuzumab or lapatinib can also be considered as first line therapy in select patients with hormone receptor positive HER2+ ABC. In the second line setting, the antibodydrug conjugate T-DM1is the standard of care as it is associated with longer survival and less toxicity than capecitabine and lapatinib. In 3rd and later lines of therapy, continuation of HER2-directed therapy is important, but there are no definitive data that a particular regimen (e.g. trastuzumab + chemotherapy, lapatinib + chemotherapy, trastuzumab + lapatinib) is superior in this setting. Thus decisions regarding choice of therapy should be guided by patients’ preferences regarding toxicity profiles and route of administration. Although HER2-directed therapy has improved outcomes, resistance to these agents eventually develops in almost all patients. CNS metastases represent one increasingly common manifestation of treatment resistance in HER2-positive cancers. Understanding mechanisms of resistance and development of novel agents to overcome this resistance is critical. A multitude of agents designed to overcome resistance are currently being evaluated in the clinic including PI3-kinase inhibitors, potent tyrosine kinase inhibitors, new antibody-drug conjugates, and novel immunotherapies. In addition, studies evaluating the genomic alterations present in metastatic HER2-positive cancer tissue are beginning to provide clues as to the mechanisms of resistance present Abstracts / The Breast 24 S3 (2015) S21–S75 in treatment refractory disease. It is possible that with continued improvements in therapies and a better understanding of molecular resistance mechanisms, mortality associated with metastatic HER2positive breast cancer can be dramatically reduced. IN05 LONG TERM SURVIVAL WITH ADVANCED DISEASE. CHALLENGES FOR THE PATIENT, THEIR SUPPORT SYSTEM AND CARE GIVERS Karen Gelmon1,2, Sally Thorne2 1 BC Cancer Agency, Medical Oncology Dpt., Vancouver, Canada; 2University of British Columbia, Medical Oncology Dept, Vancouver, Canada Despite incurable and life-limiting metastatic conditions, many patients are living longer with serious disease, pushing the boundaries of what science explains and clinicians can confidently interpret using available evidence. While this extension of good quality life is our goal, it creates new challenges. The treatments may cause long term physical side effects which were not described in the initial studies of the agents when used for limited time periods. The therapies for these toxicities may be variable and anecdotal, and need proper study. There may be signficant psychological and spiritual issues for the long terms survivor including uncertainty of the duration, the need to change their focus from ‘about to die’ to ‘living with the disease long term’, and the issues of the value of life. As well there may be substantial financial costs of long term treatment and loss of income from continued unemployment. Insurance companies may be less responsive to long term claims. For others there may be continued employment but an inablility to make longterm job commitments. For the family and friends there are the issues of changing focus and living with someone who may or may not be well long term but for whom their role in the family needs to be maintained and possibly redefined. Caregivers need to change from a short term palliative careplan to a chronic plan that remains non curative. Issues of treatment vacations, quality of life, redefinition of ‘palliative’ goals and psychological support need to be addressed with clear communcation which may change as new evidence becomes available. The caregiver who has delivered the sobering news of recurrent disease and its inevitable end is now seeing a chronic patient and must ensure other health needs are looked after appropriately, although what appropriate is for a metastatic patient may vary. To address these issues we did a study from an early subset of such individuals within a longitudinal qualitative cancer cohort study on clinician–patient communication across the cancer trajectory. We contextualized experiential accounts of communication in a changing environment of the costs and uncertainties of personalized medicine for long term survivors, and examined the complex psychosocial circumstances of this rapidly growing patient population. Interpretation of these findings illustrates how emerging issues in cancer treatment influence the experience of these patients, their social and support networks, their cancer care specialists, and the multidisciplinary teams charged with coordinating their care. These experiences are mirrored in other diseases where medical advances have improved survival such as AIDs and cystic fibrosis. With breast cancer the public have instilled expectations that also fuel some of the challenges for both the long term survivors and those with less good outcomes. [1] Thorne et al. Qualitative Health Research 2013;23:863-875 IN06 LIVING ON BORROWED TIME: LONG TERM RESPONDERS Shirley A. Mertz Metastatic Breast Cancer Network, NewYork, NY, USA A distinct benefit and result of targeted therapies for the management of HER2 positive metastatic breast cancer is the growing number of patients who are living longer with metastatic breast cancer. Few such patients would call themselves “survivors,” since the disease is S23 incurable. More accurately, they are Long Term Responders, who live as fully as possible on borrowed time. While I have lived with metastatic breast cancer for twelve years and still undergo treatment, I can report that Long Term Responders are acutely aware that metastatic cancer can progress at any time and at any site in our body. Targeted treatments that have little toxicity enable us to have a relatively high quality of life. As we interact with others, we must contend with ignorance and misunderstandings about early and metastatic breast cancer among extended family members, friends, work colleagues, and the public. Such perceptions need to be addressed through education and awareness by all global stakeholders in the breast cancer community. In addition, some healthcare providers believe that patients who have had a long term response to treatment have resolved the psychological and social issues strongly associated with those new to a metastatic diagnosis—anxiety, depression, sleep disorders and access to social support. To the contrary, such issues remain part of the continuum in the journey with metastatic breast cancer. Long Term Responders often must be proactive in seeking help to address these issues with their healthcare providers, and some must seek help on their own. Finally, Long Term Responders with the HER2 positive disease have seen the approval of new therapies for the disease in the second and third lines of treatment. These new treatments and a new era of precision medicine provide hope to HER2 positive metastatic patients that, upon progression of their disease, there will be other viable treatment options to consider. While these developments are occurring, Long Term Responders are aware that discussions have begun within the medical community and among policy makers about whether the high cost of cancer treatments in the second and third line make their future use sustainable by society. Missing thus far is a discussion that includes the voice of Long Term Responders from all metastatic cancers and the relative costs to society when the lives of people who have responsibilities to others are cut short. Some argue that in societies where the costs of cancer treatments can no longer be justified, expensive treatments still will be available to those who can afford them. With that outcome, the number of Long Term Responders, made possible by the dedication, intelligence and talents of scientists, researchers and clinicians, will no doubt decline. IN07 NEW DRUGS, NEW SIDE EFFECTS: ENDOCRINE SIDE EFFECTS Alexandru Eniu Cancer Institute “I. Chiricuta”, Department of Breast Tumors, Cluj-Napoca, Romania Several targeted therapies with novel mechanisms of action have been developed for use in advanced breast cancer. These new agents are characterised by mechanism-based new side effects that can affect more than one organ system. Moreover, the usual continuous administration of these agents make them prone to generate cumulative toxicities over time; therefore, the clinician has to be aware and recognize early signs of subacute toxicities in order to proactively manage them. The purpose of this presentation is to review the available evidence regarding the endocrine effects of new, targeted agents, and to provide the clinician with usable information to recognize, assess and manage these new toxicities. Everolimus is the first mTOR inhibitor approved, in combination with exemestane, for the treatment of hormone receptor positive advanced breast cancer pretreated with a nonsteroidal aromatase inhibitor. One of its effectors, mTORC1, functions as an integrator for four major regulatory inputs: nutrients, energy, growth factors and stress. It also controls the activity of several transcription factors implicated in lipid synthesis and mitochondrial metabolism. Therapeutic mTOR inhibition can lead in the clinic to hyperglycemia, hypercholesterolemia, and hypertriglyceridemia. This is a common effect caused also by another class of agents in clinical development, namely the PI3K inhibitors. Hyperglycemia and hyperlipidemia are anticipated class effects of agents affecting the PI3K/AKT/mTOR pathway as this pathway mediates signals downstream of the insulin receptor. The management of these toxicities mandates to check glucose and lipids level before and during treatment. S24 Abstracts / The Breast 24 S3 (2015) S21–S75 The majority of patients will develop only grade 1-2 alterations. Hyperglycemia should be adequately treated as per diabetes mellitus recommendations. Hyperlypidemia should also be treated according to current guidelines; for triglicerid levels above 500 mg/dl, the use of lipid-lowering therapies, such as fibrates or HMG CoA reductase inhibitors are indicated to avoid pancreatitis arising from extremely high levels of triglycerides or cholesterol, based on extrapolation of data from cardiovascular diseases. Data on other, less frequent endocrine toxicities will also be reviewed in the presentation. IN08 TREATMENT ASSOCIATED RISKS: IDENTIFYING AND TREATING PULMONARY TOXICITY Hope S. Rugo University of California San Francisco, Breast Oncology Clinical Trials Education, San Francisco, USA The treatment of metastatic breast cancer includes a variety of therapeutic modalities, including hormone therapy, chemotherapy and radiation. Newer targeted have improved progression free survival and response to hormone therapy for patients with hormone receptor positive disease. The benefit of therapy must be weighed against potential toxicity, and it is critically important that serious risks are well recognized. Clinicians must both inform patients about risk, and be familiar with early signs of toxicity as well as appropriate interventions. Clearly both radiation and chemotherapy can cause pulmonary toxicity, with prior radiation increasing the risk of inflammation from specific agents such as taxanes. Inflammation of the lungs is referred to as noninfectious pneumonitis, or NIP, and is generally a diagnosis of exclusion. Two new classes of targeted agents have been approved in combination with hormone therapy for the treatment of metastatic, hormone receptor positive breast cancer. Everolimus, an mTOR inhibitor, is the first of the class of drugs active within the PI3K pathway to be approved in combination with exemestane after progression of disease following treatment with nonsteroidal aromatase inhibitors [1]. The most common toxicities from everolimus include stomatitis, fatigue, hyperglycemia, and NIP; these class effects are seen across indicated diseases [2]. NIP associated with everolimus is rare, with > grade 3 NIP observed in 3% of patients enrolled in the phase III Bolero II trial. No known risk factors have been identified that increase the risk of NIP. The majority of NIP occurs in the first 6 months of treatment, and is associated with a risk of treatment discontinuation [3]. Generally grade 1 NIP can be monitored without specific intervention, and is defined as radiographic findings without symptoms. Classic radiographic findings include ground glass opacities, or patchy or diffuse airway consolidation. Grade 2 NIP also includes cough and shortness of breath without hypoxia. Treatment includes holding everolimus until recovery of symptoms to grade 1 or less; drug should be restarted as tolerated at a reduced dose. Corticosteroids may be considered depending on the severity of symptoms. Patients whose symptoms do not recover within 4 weeks should discontinue therapy. Symptoms of grade 3 NIP includes shortness of breath, hypoxia requiring supplementary oxygen and occasionally fevers, again with classic radiographic findings. Everolimus must be held and treatment with corticosteroids should be instituted. In most cases, rechallenge with everolimus is not advised. The differential diagnosis of NIP includes infection, progression of malignant disease, and toxicity from other therapies. Consultation with a pulmonary specialist and/or additional diagnostic procedures should be considered. Treatment with antibiotics should be considered if infection cannot be ruled out. Of patients in Bolero II with grade III NIP or related pulmonary events, 75% had resolution of symptoms to grade 1 or less by 5.4 weeks [4]. Early identification and appropriate treatment of symptomatic NIP is necessary in order to avoid more serious clinical effects; both physicians and patients should be aware of symptoms. Baseline radiographic studies should be obtained, and prompt evaluation and treatment is indicated for any respiratory complaints. The toxicity profile of PI3K inhibitors appears to differ from that seen with mTOR inhibitors, with PI3K side effects including rash and hyperglycemia [5]. The second class of approved agents includes palbociciclib, a cyclin dependent kinase 3/4 inhibitor with a unique toxicity profile primarily including reversible neutropenia [6]. Given these non-overlapping toxicities, alternate targeted therapies could be employed in patients with a previous diagnosis of NIP. [1] Baselga J, Campone M, Piccart M, et al. Everolimus in postmenopausal hormone-receptor-positive advanced breast cancer. N Engl J Med. 2012;366:520-529. [2] Rugo HS, Pritchard KI, Gnant M, et al. Incidence and time course of everolimus-related adverse events in postmenopausal women with hormone receptor-positive advanced breast cancer: insights from BOLERO-2. Ann Oncol. 2014;25(4):808-815. [3] Jerusalem G, Ellard S, Fasolo A, al. e. Non-infectious pneumonitis (NIP) in breast cancer (BC) patients treated with everolimus (Afinitor™) containing therapy: analysis of five studies. Cancer Res. 2009;69(24 suppl 3):Abstract 1115. [4] Aapro M, Andre F, Blackwell K, et al. Adverse event management in patients with advanced cancer receiving oral everolimus: focus on breast cancer. Ann Oncol. 2014;25:763-773. [5] Chia S, Gandhi S, Joy AA, et al. Novel agents and associated toxicities of inhibitors of the pi3k/Akt/mtor pathway for the treatment of breast cancer. Curr Oncol. 2015;22:33-48. [6] Finn RS, Crown JP, Lang I, et al. The cyclin-dependent kinase 4/6 inhibitor palbociclib in combination with letrozole versus letrozole alone as first-line treatment of oestrogen receptor-positive, HER2-negative, advanced breast cancer (PALOMA-1/TRIO-18): a randomised phase 2 study. Lancet. Oncology. 2015;16:25-35. IN09 TOXICITY OF MODERN IMMUNOTHERAPY APPROACHES Carlos H. Barrios PUCRS School of Medicine, Porto Alegre, Brazil New immunotherapy approaches are emerging as exciting alternatives for the treatment of a variety of tumors. Better understanding (albeit still incomplete) of the mechanisms involved in the interaction of the immune system with cancer cells, particularly those involved with the ability of tumors to escape immune surveillance, has led to the development of new therapies with encouraging results. While strictly still a targeted approach, the fact that the target in this case is the host immune system, immunotherapy (sometimes with the same drug) has resulted in responses across different tumors types. As with every new therapy, issues related to toxicity and tolerability are of particular importance if we are going to be able to translate all the potential benefits of these new immune treatments to our patients. While the experience in Breast Cancer remains preliminary, some of these approaches have been already extensively tested in other tumor types where toxicities have been described and different management strategies have been proposed. We need to recognize that while checkpoint inhibitors have taken most of the press so far, cancer immunotherapy involves a number of other immune based strategies among which: cytokines, cancer vaccines and adoptive cell therapy. It is essential for the practicing oncologist to familiarize with the diagnosis and management of the toxicities associated with these different ways of interfering with the immune response in our patients. In this regard, the first and unavoidable concept to address is that these adverse events are different from those we are used to encounter with chemotherapy and other targeted approaches. The underlying mechanism responsible for the toxic effects seems to be a hyperactivated T-cell response redirected against normal tissues. Unfortunately, the therapeutic response we try to induce is not restricted enough to tumor cells and leads to off-target effects generating an immune response that cross-reacts with normal tissues causing autoimmune organ damage. Checkpoint inhibition and adoptive cell therapy both lead to the expansion of a limited population of Abstracts / The Breast 24 S3 (2015) S21–S75 immune cells with more specific set of autoimmune effects. Cytokines on the other hand, seem to generate a more global and non-specific T-cell response. Due to the central role of the immune system it would be expected that many different organ systems could be affected leading to diverse adverse events, however, some organs seem to be more frequently involved than others. Skin, GI tract, liver and endocrine glands are the main sites of autoimmune toxicity with these therapies. Nervous system, lungs and kidneys can also be involved but generally less frequently so. Very pertinent to this discussion, the duration of some of these therapeutic responses seem to be rather long raising issues of potential long term effects yet to be clearly described and studied. [1] Weber JS, Yang JC, Atkins MB, Disis ML. Toxicities of Immunotherapy for the Practitioner. J Clin Oncol 2015; 33: 1-8. [2] Gangadhar TC, Vonderheide RH. Mitigating the toxic effects of anticancer immunotherapy. Nat Rev Clin Oncol 2014; 11(2): 91–99. IN10 THE ROLE OF PATIENT REPORTED OUTCOMES Lesley Fallowfield, Brighton & Sussex Medical School, University of Sussex, Sussex Health Outcomes Research & Education in Cancer, Falmer, UK Patient Reported Outcomes (PROs) are any data that comes directly from the patient without the intervention of a healthcare professional or other patient proxy. PRO measures can include interviews conducted for example in patient preference studies and standardised, validated health-related quality of life questionnaires available for completion electronically or on paper. The later tend to be employed in clinical trials. It has been assumed that the recording of Adverse Events by clinicians reliably documents patients’ side-effects and symptoms of disease and treatment. Unfortunately a large accumulating body of evidence suggests that the frequency and severity of many symptoms that impact upon an individual patient’s quality of life go underreported, under-recognised and consequently under-treated. This is unacceptable as the aim of any treatment in MBC is palliation and also potentially dangerous from a drug safety point of view. The inability of traditional methods for capturing AEs has led to renewed interest in incorporating PROs with CTC-AEs in clinical trials and utilising PROs outside a clinical trial setting, to monitor more accurately the harms and benefits that patients experience. Many standardised, well validated instruments or PRO measures are available with translations into most languages. Most frequently used are the generic FACT (http://www. facit.org/FACITOrg/Questionnaires) and EORTC-QLQ-C30 http://eortc. be) questionnaires. Both have breast cancer specific modules/subscales and the FACT in particular has several other specific subscales covering for example treatment with EGfR inhibitors, taxanes, anti-angiogenisis, endocrine and monoclonal antibodies. Recently the FDA and EMA have published guidance for industry on how to utilise PROs in applications for drug labelling claims. There has also been an important initiative, funded by the NCI, to produce a Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE), and which is suggested for use in NCI sponsored trials. (http://outcomes. cancer.gov/tools/pro-ctcae.html). There is evidence from many tumour sites that PROs are good prognostic and predictive indicators increasing their utility by helping to demonstrate which patients are benefitting from treatment and those for whom it is futile. IN12 THE ROLE OF CDK AND PI3K/MTOR INHIBITORS Fabrice André Gustave Roussy Cancer Center, Villejuif, France Analyses from TCGA project have shown that, beside ER, there are three pathways activated in breast cancer namely PI3K/mTOR, CDK4, p53. S25 These pathways can be activated by a genomic-dependant (mutation / gene amplification) or independent mechanism. PI3K/mTOR and CDK4 have also been reported to be involved in the resistance to endocrine therapy. All these data have led to the concept that PI3K, mTOR or CDK4 inhibition could reverse or delay resistance to endocrine therapy. Everolimus is a mTOR inhibitor. Three randomized studies, including one phase III, have shown that everolimus improves patient outcome when added to endocrine therapy. This drug is now approved in patients who present a resistance to non-steroidal aromatase inhibitors. There are several efforts to better define the subset of patients who derive large benefit from everolimus. Next generation sequencing analyses have suggested that having multiple genomic alterations could be associated with lower sensitivity to the drug. Molecular analyses from phase II studies have suggested that mTOR activation could predict higher sensitivity to the drug. PI3K activated AKT1 by generating PI3P. At the opposite, PTEN decreases this rate of PI3P and therefore inhibit signal transduction. Activating mutations of PIK3CA occur in 25% of ER+ breast cancer. PI3K inhibitors include non-selective PI3K inhibitors and alpha-selective PI3K inhibitors. Alpha-selective PI3K inhibitors are expected to present a higher bioactivity on the alpha isoform of PI3K and should present higher activity in patients presenting PIK3CA mutant ER+ BC. Phase III trials are ongoing to evaluate the efficacy of PI3K inhibitors CDK4 is a kinase activated by Cyclin D1 and that phosphorylates Rb. Two randomized trials, including one phase III registration trial, have shown that adding CDK4 inhibitor (palbociclib) to endocrine therapy improves outcome. There is no evidence until now that CCND1 amplification could predict benefit of CDK4 inhibitors. Beyond palbociclib, two other CDK4 inhibitors (abemaciclib and LEE011) are being evaluated in phase III trials in metastatic breast cancers. Ongoing trials in the preoperative setting will generate hypotheses about predictive biomarkers. Overall, two targeted therapies have been shown to improve outcome in patients with ER+ mBC. The future will consist in better positioning each of these drugs, improving guidelines for management, and will finally aim to combine drugs targeting ER, CDK4, PI3K/mTOR inhibitors. IN13 REVOLUTIONIZING ER+ ABC MANAGEMENT: ESR1 AND OTHER SUSPECTS IN RESISTANCE Véronique Diéras Institut Curie, Department of Medical Oncology, Paris France About 70% of all BC express estrogen receptor (ER), the product of ESR1 gene. Endocrine therapies (ET) represents the main treatment for these subtypes and includes selective estrogen modulation (SERM), aromatase inhibition (AI) and selective estrogen receptor downregulation (SERD). However, the majority of ABC patients will develop resistance, leading to disease progression. Significant strides have been made in the understanding of the mechanisms of resistance to ET leading to several targeted approaches as inhibitors of PI3K/mTOR pathway and cyclindependant kinase 4/6. The implementation of molecular screening and next generation sequencing (NGS) of primary and metastatic breast cohorts provided a lot of genetic data as amplifications and/or mutations in a small subset of tumors. Recently, studies have identified mutations of ESR1 as an important mechanism of acquired resistance to AI therapy. These mutations are very rare in primary tumors and occur in 15-25% in metastatic disease with a correlation between the number of prior ET and the mutation frequency. These mutations in the ligand-binding site result in constitutive activation of ER in the absence of estrogen binding. In in vitro studies, tumor cells with mutations of ligand binding domain exhibit responsiveness to antiestrogen therapy but a higher drug concentration is required. New agents as SERD are in clinical trials with the hypothesis to be more selective in ESR1 mutated tumors. Less common but interesting are mutations of HER2 identified in a small subset of breast cancers without HER2 amplification. The in vitro studies shown that most commons mutations were activating mutations S26 Abstracts / The Breast 24 S3 (2015) S21–S75 and confer sensibility to neratinib, an irreversible HER tyrosine kinase inhibitor while lapatinib was not active. Currently a clinical trial is examining the activity of neratinib in patients with HER2 mutated breast cancer. Targeting the fibroblast growth pathway appear to be relevant as FGFR1 amplification occurs in 10% of all breast cancers, and enriched in luminal B subtype and associated with resistance to ET. Clinical trials have explored the potential to target FGFR signalling in breast cancer with multitargeting inhibitors as dovitinib and lucitanib, and further studies with other agents and in combination with endocrine therapy are ongoing. Other rare genetic events can been found also in breast cancer such as mutation/amplification KIT, MET, PDGFRA and may represent therapeutic target. Due to the very low frequency of such molecular alterations, it is important to consider a new approach for clinical trials as AURORA or SAFIR02 programs. ER signalling remains an important therapeutic target even in the resistance setting. These new data in molecular characterization provide strong rational for new strategies to either manage or impede resistance to ET. In addition, there is a need for biologically driven criteria to guide treatment choice, identification of the optimal combinations or sequences of targeted agents and integration of new agents into current regimens. [1] Cancer Genome Atlas Network. Comprehensive molecular portraits of human breast tumours. Nature 2012; 490:61-70. [2] Goncalves R, Warner WA, Luo J and Ellis MJ New concepts in breast genomics and genetics. Breast Cancer Research 2014, 16:460. [3] Segal CV, Dowsett M Estrogen receptor mutations in Breast cancer – New focus on an old target. Clin Cancer Res 2014, 20(7) 1724-26. [4] Zardavas D, Maetens M, Irrthum A et al: The AURORA initiative for metastatic breast cancer BJC (2014) 111, 1881-87 IN14 IS OVARIAN ABLATION MANDATORY IN PRE-MENOPAUSAL ER+ ABC PATIENTS? Jonas Bergh Karolinska Oncology, Radiumhemmet, Cancer Centre Karolinska, Karolinska Institutet and Univeristy Hospital, Stockholm, Sweden Present consensus: “For premenopausal women, ovarian suppression/ ablation combined with additional ET is the first choice.” The formal evidence for this seems limited; six prospective and randomized studies were published in the -80- and -90 ties with a total patient number 741 randomized individuals. Four of these studies failed to demonstrate any difference between oophorectomy and “tamoxifen”, while the largest study with 318 patients demonstrated an improved progression free survival, while the sixth study with 171 randomized patients demonstrated a survival gain for the combination of buserelin and tamoxifen vs. tamoxifen or buserelin alone. For the present question we lack studies with sufficient power, therefore we need to extrapolate from the adjuvant situation. Data from more recent and large adjuvant studies (TEXT/SOFT) has demonstrated a gain by the combination of buserelin for five years and examestane in younger patients, still menstruating after adjuvant chemotherapy compared with tamoxifen alone. One can also note the EBCTCG data from 100.000 patients demonstrated that the relative effect by chemotherapy was similar, irrespective of age and tamoxifen use. Despite the lack of similar prospective data from the metastatic situation it would likely be a better option to offer an LHRH agonist (oophorectomy) combined with an aromatase inhibitor instead of tamoxifen alone as the first choice for a premenopausal patient with an ER positive relapse. Complicating factors: The immune expression of ER is not infrequently heterogeneous in primary breast cancers. Some studies have demonstrated that that adjuvant therapies may drive clonal selections of cells not expressing the therapy predictive drug target, i.e. Her-2 and ER, resulting in the “loss” of ER in 1/6 to 1/3 patients in the corresponding metastatic lesion. More recent data from metastatic biopsies has revealed that mutations may occur in the ER ligand-binding domain causing, implicating resistance to conventional endocrine therapy. The choices of therapy in the metastatic setting for a premenopausal patient should be influenced by; relapse on adjuvant endocrine therapy together site of recurrence, performance status and laboratory findings. In some situations up front chemotherapy is the preferred strategy; patients having a rapid relapse on optimal adjuvant endocrine therapy, in particular if previously not treated with chemotherapy. Furthermore one should also discuss to use chemotherapy if a metastatic biopsy reveals “Luminal B like features”. While loss of ovarian function has added value as described above, one should of course consider to use chemotherapies with a higher likelihood to induce amenorrhea, thereby having dual functions. Conclusions: The evidence for some of the discussed strategies is low. In some premenopausal patients the first preferred management strategy should include ovarian ablation, while other up-front therapy options should be discussed, in particular when there is a substantial risk for “endocrine resistance”. IN15 OPTIMAL MANAGEMENT OF TRIPLE NEGATIVE METASTATIC BREAST CANCER (TODAY) Lisa A. Carey Lineberger Comprehensive Cancer Center, University of North, Dept. of Medicine, Chapel Hill, USA Conventional treatment for metastatic TNBC centers on cytotoxic chemotherapy. Polychemotherapy is generally reserved for symptomatic or rapid visceral progression, and sequential single agents for the rest. The TNBC subset within randomized phase III studies suggests that weekly paclitaxel is superior to microtubule-directed agents nabpaclitaxel or ixabepilone in the first-line setting [1] and that eribulin is at least equal to capecitabine in later line settings [2]. Given the association of TNBC with molecular subtypes that have aberrant DNA damage response, trials have examined the role of direct DNAdamaging agents, such as platinum drugs, and targeting DNA damage response with PARP inhibitors in TNBC. The recently reported TNT trial found equivalence of carboplatin and docetaxel in first-line therapy of metastatic TNBC, however within those tumors known to be BRCAassociated, the platinum outperformed the taxane, and within the minority of TNBC that are not of the basal-like molecular subtype, the taxane appeared to outperform the platinum [3]. These findings suggest mechanisms for tailoring therapy in both the metastatic and nonmetastatic settings. However, the TNT trial included a planned crossover; and there was no difference in overall survival, suggesting that while disease control initially may be facilitated by these selection strategies, at this time there is no effect on survival if all drugs are available. Given the palliative nature of treatment of metastatic disease and the highly variable toxicity profiles of all these drugs, decisionmaking may reasonably be made on the basis of toxicity, schedule and personal preference. TNBC molecular heterogeneity has stymied efforts to develop targeted therapy. Promising approaches that have not developed into successful treatment include antiangiogenic drugs such as bevacizumab [4], EGFR inhibitors [5,6], and PARP inhibition outside of those patients with germline BRCA1/2 mutations [7], although there is clearly activity of these drugs in BRCA-associated tumors. At AACR 2015, intriguing data from a pembrolizumab phase I study suggest that immune checkpoint targeting may be the next exciting direction in TNBC [8]. [1] Rugo H et al. CALGB 40502/NCCTG N063H: Randomized phase III trial of weekly paclitaxel (P) compared to weekly nanoparticle albumin bound nab-paclitaxel (NP) or ixabepilone (Ix) with or without bevacizumab (B) as first-line therapy for locally recurrent or metastatic breast cancer (MBC). J Clin Oncol 30, 2012 (suppl; abstr CRA1002). [2] Kaufman P et al. A Phase III, Open-Label, Randomized, Multicenter Study Of Eribulin Mesylate Versus Capecitabine In Patients With Abstracts / The Breast 24 S3 (2015) S21–S75 Locally Advanced Or Metastatic Breast Cancer Previously Treated With Anthracyclines And Taxanes. 2012 CTRC-AACR San Antonio Breast Cancer Symposium. Tutt A et al. TNT: A randomized phase III trial of carboplatin compared with docetaxel for patients with metastatic or recurrent locally advanced triple negative or BRCA1/2 breast cancer. 2014 CTRC-AACR San Antonio Breast Cancer Symposium. Abstract S3-01 O’Shaughnessy J et al. A meta-analysis of overall survival data from three randomized trials of bevacizumab (BV) and first-line chemotherapy as treatment for patients with metastatic breast cancer (MBC). J Clin Oncol 28:15s, 2010 (suppl; abstr 1005). Carey LA et al. TBCRC 001: randomized phase II study of cetuximab in combination with carboplatin in stage IV triple-negative breast cancer. J Clin Oncol. 2012 Jul 20;30(21):2615-23 Baselga J et al. Cetuximab + Cisplatin in Estrogen Receptor-Negative, Progesterone Receptor-Negative, HER2-Negative (Triple-Negative) Metastatic Breast Cancer: Results of the Randomized Phase II BALI1 Trial. Cancer Research: December 15, 2010; Volume 70, Issue 24, Supplement 2. Gelmon KA et al. Olaparib in patients with recurrent high-grade serous or poorly differentiated ovarian carcinoma or triple-negative breast cancer: a phase 2, multicentre, open-label, non-randomised study. Lancet Oncol. 2011 Sep;12(9):852-61 Emens L et al. Inhibition of PD-L1 by MPDL3280A leads to clinical activity in patients with metastatic triple-negative breast cancer (TNBC). AACR Annual Meeting; Philadelphia, PA. Abstract 6317 S27 CAN IMMUNE-BASED THERAPIES BE THE KEY? consequence of constant immune selection pressure placed on genetically unstable tumor cells held in equilibrium, tumor cell variants will be selected. They are no longer recognized by adaptive immunity (antigen loss variants or tumors cells that develop defects in antigen processing or presentation). They become insensitive to immune effector mechanisms, or induce an immunosuppressive state within the tumor microenvironment (tolerance). These tumor cells may then enter the escape phase, in which their outgrowth is no longer blocked by immunity. These tumor cells can re-emerge after adjuvant therapy to cause metastatic disease. Is breast cancer immunogenic? Many data suggest that it is. Many observations demonstrated the prognostic role of TILs in TNBC breast cancer. TNBC are poorly differentiated tumor with high genetic instability and very high heterogeneity. This heterogeneity enhances the ”danger signals” and select clone variants that could be more antigenic or, in other words, that could more strongly stimulate a host immune antitumor response. Better prognosis in patients with TN positive BC and higher TILs is also the result of an ”immunoediting” process induced by chemotherapy. It has been evaluated in cellular and animal models the emerging concept that the response to chemotherapy is at least partly dependent on an immunological reaction against those tumor cells that are dying during the chemotherapy. One of the mechanisms whereby chemotherapy can stimulate the immune system to recognize and destroy malignant cells is commonly known as immunogenic cell death (ICD). Cancer cells succumbing to ICD are de facto converted into an anticancer vaccine and as such elicit an adaptive immune response. Which are the clinical implications of all ”immunome” data produced in the last years? First, validation of whether TILs are prognostic or predictive in HER2+ and TN breast cancer is needed, preferably in a large population set with appropriate follow up time. Second, validate immune genomic signatures that may be predictive and prognostic in patients with triple negative disease. Third, it will be essential to incorporate an ‘immunoscore’ into traditional classification of breast cancer, thus providing an essential prognostic and potentially predictive tool in the pathology report. Fourth, implement clinical trials for TN breast cancer in the metastatic setting with drugs that target immune-cell–intrinsic checkpoints. Blockade of one of these checkpoints, cytotoxic T-lymphocyte–associated antigen 4 (CTLA-4) or the programmed death 1 (PD-1) receptor may provide proof of concepts for the activity of an immune-modulation approach in the treatment of a breast cancer. We need also to better assess the role of TILs in DCIS and to better explore the relationship between autoimmune disease and cancer. The immune system remembers what it targets, so once the system is correctly activated, it may mediate a durable tumor response. [1] V. Shankaran, et al. IFN and lymphocytes prevent primary tumour development and shape tumour immunogenicity. Nature 2001;410:1107. [2] G. P. Dunn, A. T. Bruce, H. Ikeda, L. J. Old, R. D. Schreiber, Cancer immunoediting: From immunosurveillance to tumor escape. Nat. Immunol. 2002;3:991. [3] Loi S, Sirtaine N, Piette F, et al. Prognostic and predictive value of tumor-infiltrating lymphocytes in a phase III randomized adjuvant breast cancer trial in node-positive breast cancer comparing the addition of docetaxel to doxorubicin with doxorubicin-based chemotherapy: BIG 02–98. J Clin Oncol 2013;31:860-867 [4] Dieci MV, Criscitiello C, Goubar A, et al. Prognostic value of tumor-infiltrating lymphocytes on residual disease after primary chemotherapy for triple-negative breast cancer: a retrospective multicenter study. Ann Oncol. 2014;25:611-8. [5] Zitvogel L, Kepp O, Kroemer G: Immune parameters affecting the efficacy of chemotherapeutic regimens. Nat Rev Clin Oncol 2011;8:151-160 Giuseppe Curigliano Istituto Europeo di Oncologia, Division of Experimental Cancer Medicine, Milan, Italy IN18 [3] [4] [5] [6] [7] [8] IN16 RESURRECTING PARP INHIBITION Andrew Tutt Kings College London, School of Medicine, Guy’s Hospital Cam, Breakthrough Breast Cancer Research Centre, London, UK The use of PARP inhibitors has been most discussed in the context of their ability to induce synthetic lethality in BRCA1 and BRCA2 associated malignancies. This has led to a licence for Olaparib in advanced BRCA1/2 associated ovarian cancer. The role of PARP inhibitors in breast cancer is currently under investigation with studies focussed on both metastatic and early forms of BRCA1/BRCA2 associated breast cancer. Early after proof of concept was shown in BRCA associated breast cancer with potent PARP inhibitors the field became distracted by Phase 2 evidence of significant activity for the drug Iniparib in combination with Gemcitabine and Carboplatin. This drug was found not to be a PARP inhibitor neither to add significant benefit to platinum based chemotherapy. Since then the role of PARP inbibitors in sporadic, non BRCA, breast cancer has been little investigated. I will review current Trials activity both in the BRCA mutation associated and the BRCA ‘wild type’ breast cancer context and some putative biomarkers suggested to be of relevance for patient selection in these Trials. I will also discuss early phase data relating to other targeted therapy in breast cancer in both BRCA mutated and sporadic contexts. IN17 A fundamental ”dogma” of tumor immunology and of cancer immunosurveillance in particular is that cancer cells express antigens that differentiate them from their non-transformed counterparts. Tumor antigens are overexpressed normal proteins and therefore are subject to immunological tolerance. Immune system controls not only tumor ”burden” (quantity) but also tumor ”quality” (immunogenicity). As a TRIPLE NEGATIVE BREAST CANCER: THE ROLE OF ANDROGEN RECEPTOR AND ITS INHIBITORS Clifford A. Hudis, Tiffany Traina Memorial Sloan Kettering Cancer Center, Breast Cancer Medicine Service, New York, USA S28 Abstracts / The Breast 24 S3 (2015) S21–S75 The availability of relatively non-toxic targeted therapies directed at the estrogen receptor and HER2 has emphasized the more limited systemic therapy options for patients with triple negative disease. Conventionally, in both the adjuvant/neo-adjuvant or metastatic settings, such patients are offered cytotoxic chemotherapy which, while effective in many cases, is associated with some toxicities. The androgen receptor (AR) has not been routinely considered in breast cancer although it was known to be expressed in estrogen receptor positive disease for several decades. In exploratory work, several groups identified AR positive triple negative tumors through parallel exploratory efforts utilizing gene expression profiling. Preclinical models confirmed that AR can drive tumor growth when exposed to androgens and that anti-androgens could then be inhibitory. Based on this work a translational study was conducted through the TBCRC that established activity for bicalutamide, a nonsteroidal androgen receptor inhibitor with long-established efficacy in prostate cancer, in patients with hormone-receptor negative (and almost universally HER2 negative) metastatic breast cancer. Several questions are raised by this positive result: 1. Are there more effective agents? Current candidates could include the 17 -hydroxylase/C17,20 lyase (CYP17A1) inhibitor, Abiraterone or the androgen receptor antagonist enzalutamide (formerly MDV3100) as each of these is effective in prostate cancer. 2. Is the selection of AR-positive patients optimized using current techniques? The TBCRC study utilized DAKO IHC but cut-points, alternative IHC antibodies, and gene expression profiling may yield more sensitive and/or larger treatable cohorts. 3. Is randomized evidence of efficacy required for a relatively uncommon cohort using palliative agents with markedly different toxicity profiles as compared to “standard” chemotherapy? 4. Can adjuvant development proceed? This lecture will address these questions with updated data. IN19 IMAGING RECEPTOR EXPRESSION AND GLYCOLYTIC ACTIVITY USING PET-CT TO INDIVIDUALIZE TREATMENT IN METASTATIC HER2 POSITIVE BREAST CANCER (MBC) P. Flamen, G. Gebhart Institut Jules Bordet, Université Libre de Bruxelles (ULB) Dpt. Nuclear Medicine, Bruxelles, Belgium Molecular Imaging (MI) techniques using PET-CT in oncology might become a major tool as predictive biomarkers in metastatic breast cancer. One of the most appealing applications of MI is the imaging of the expression and the bio-accessibility of the target of the drug. New biologicals that are being introduced now in oncology are extremely expensive, being often only effective in a small proportion of patients expressing the drugs target, and are often associated with a considerable toxicity which can significantly impaire quality of life. Using these drugs in an unselected population will thus constitute a major burden on health care cost. Better upfront selection of patients will be of crucial importance in order to increase the cost-effectivity of these drugs. MI techniques should primarily aim at (pre)identifying those patients in whom the drug is very unlikely to have a positive impact on treatment outcome. In those patients, early treatment discontinuation, or adaptation (changing dosing or adding other drug in order to overcome resistance) could lead to a better patient adapted treatment regimen and might positively impact on patient outcome (which remains to be proven). Before starting therapy with anti-HER2 drugs (eg. trastuzumab) or drug conjugates using HER2 as a vector of potent antimitotic drugs (eg. TDM1), MI can assess the presence and accessibility of the drug’s target (eg. HER2 receptor) through the administration of a radiotracer targeting the target of the drug itself, or of the vector of the conjugated drug, thereby non-invasively assessing the well known intra-individual heterogeneity compared to the primary tumor site and also among the different tumor sites themselves. Considering the HER2 receptor, a trial on the use of Zr89-labeled trastuzumab (Zr-T) in patient with HER2- positive metastatic breast cancer showed uptake heterogeneity in 45% of the patients, and absence of any uptake in 16 % of the patients. A multicenter study (Zephir) exploring the role of molecular imaging to identifying patients with HER2 positive metastatic BC unlikely to benefit from HER2 targeting drug conjugate (TDM1) is ongoing (sponsor: Institut Bordet). The results of an interim analysis of some of the secondary and exploratory endpoints of the trial were recently presented at the 2014 ASCO meeting in Chicago and will be discussed during the lecture. When combining Zr-T imaging with early measurement of tumor response (FDG PET imaging of glycolysis after one single cycle), on a patient-based analysis, high negative (86%) and positive predictive values (100%) in terms of metabolic and structural response were obtained. IN20 TOWARDS IMPROVED DISEASE OUTCOME COMBINED WITH A REDUCTION OF TOXICITY USING NEW RADIATION THERAPY TECHNIQUES Hanneke J.M. Meijer, Martina Kunze-Busch, Philip Poortmans Radboud University Nijmegen Medical Center, Department of radiation oncology, Nijmegen, the Netherlands Radiation therapy (RT) plays an important role in the treatment of advanced breast cancer. However, side effects might occur, including fibrosis, reduced cosmetic results, cardiac and pulmonary toxicity, and impaired shoulder function. The advent of CT-based treatment planning has enabled the determination of individualised target volumes. Recently, the European SocieTy for Radiotherapy and Oncology (ESTRO) published guidelines for target volume delineation of the breast, thoracic wall and regional lymph nodes. These guidelines result in smaller and individualised target volumes. In combination with conformal RT, this will decrease the dose to the lungs, heart and shoulder joint. While 3D conformal RT is routinely used, the homogeneity and conformality of the dose distribution can be further improved by using modern techniques including IMRT or VMAT. Several studies have shown that this will lead to a decrease of side effects, and reduced dose to the lungs and heart. However, in view of their higher complexity and the delivery of a low dose of radiation outside of the target volumes, sole use of these techniques should only be used in challenging cases where dose constraints cannot be met with standard techniques, like in cases of a complex anatomy. Accurate and reproducible patient positioning and target volume localisation are always necessary, especially when using more conformal RT techniques. For treatment planning, the setting of dose and volume constraints for the organs at risk is of utmost importance. These can be used to balance target volume coverage against the risk for late side effects. An important heart-dose sparing technique is respiratory control, by breathhold or gating. With these techniques, patients can be irradiated during the inspiration phase of the breathing cycle only, when the heart is being pushed back- and downwards, thereby moving the heart away from the target volumes. This can be combined with highly conformal irradiation techniques to further reduce heart dose. This has also been shown feasible for locoregional irradiation. In treatment plan comparison studies, protons have shown to further reduce the dose to the organs at risk. However, proton therapy dose delivery is highly sensitive to patient positioning, varying shape of the breast and breathing motion. Therefore, results from real cases should be awaited for before this complex and expensive technique should be used for routine practice. Hypofractionation has proven to be safe for early stage breast cancer. Recently, reports are being published for postmastectomy and locoregional hypofractionation, showing similar results compared to conventional fractionation in terms of tumour control and toxicity. Extra attention has to be paid to dose homogeneity when using hypofractionation. Abstracts / The Breast 24 S3 (2015) S21–S75 IN21 OPTIMAL MANAGEMENT OF FATIGUE Fausto Roila Medical Oncology, “S. Maria” Hospital, Terni, Italy Cancer-related fatigue is one of the most frequent and distressing symptom of the neoplastic patients. Until 40% of patients referred fatigue at diagnosis, 80-90% during cancer therapies and 20-50% after the end of cancer therapies. Practice guidelines suggest that all cancer patients and survivors be screened for cancer-related fatigue. Comorbidities that could contribute to fatigue should be treated (i.e., hypothyroidism, heart failure) as well as cancer and its complications (anemia), psychological problems (anxiety, depression, insomnia) and cancer symptoms (pain, dyspnea, anorexia-cachexia). Pharmacological therapies have been evaluated in few randomized clinical trials. Unfortunately, psychostimulants (methylphenidate, dexanphetamine, modafinil), antidepressant (paroxetine), acetylcholinesterase inhibitors (donezepil), l-carnitine and coenzyme Q10 have reported negative results, except in some subgroup of patients with severe fatigue receiving methylphenidate and modafinil. On the contrary, corticosteroids (dexamethasone 4 mg twice day) demonstrated superior efficacy to the placebo in terminal cancer patients. Non-pharmacological treatments can be recommended to the patients suffering from cancer-related fatigue. Several meta-analyses, systematic reviews, and randomized trials have demonstrated that initiating or maintaining adequate levels of physical activity can reduce cancerrelated fatigue in post-treatment patient. Actively encourage all patients to engage in moderate level of physical activity after cancer treatment such as 150 minutes of moderate aerobic exercise (fast walking, cycling , or swimming) per week with an additional two to three sessions for week of strength training such as weight lifting unless contraindicated. Psychosocial interventions such as cognitive behavioural therapy / behavioural therapy, psychoeducational / educational therapies can also reduce cancer-related fatigue. Randomized trials showed that cancer-related fatigue could be reduced also by mindfulness-based interventions, yoga and acupuncture. Other interventions such as biofield therapies (touch therapy), massage, music therapy, relaxation, reiki and quigong require more research especially in the post-treatment period. [1] Bower JE, Bak K, Berger A., et al Screening, assessment and management of fatigue in adult survivors of cancer: an American Society of Clinical Oncology clinical practice guideline adaptation. J Clin Oncol 2014; 32: 1840-1850. IN22 DYSPNEA: THE HARDEST SYMPTOM TO CONTROL? Matti Aapro Multidisciplinary Institue of Oncology, Clinique de Genolier, Breast Center, Genolier, Switzerland Shortness of breath, breathlessness or dyspnea (bad breathing), is a most distressing symptom, often perceived as imminent death. It has many causes, besides cancer related changes in oxygen supply. It can be of cardiac origin, and congestive heart failure is not a rare event in breast cancer patients. It can be related to asthmatic manifestations, airway obstruction, chronic obstructive pulmonary disease, pleural effusion or pulmonary embolism (often non diagnosed repeated small emboli). Anemia has to be excluded, and patient anxiety (a cause also of minor dyspnea) has to be discussed. While relatively easily treatable causes are being excluded (and of course in all settings where a relieving intervention can not be offfered) one has to think of symptom relief. Symptoms due to respiratory secretions are alleviated with anticholinergic drugs and mucolytics. Physical therapy and methods of respiratory management are profitable in the treatment of respiratory symptoms. Radiation therapy relieves cancer-induced hemoptysis, cough, chest pain and obstructive dyspnea (when laser desobstruction S29 is not feasible). The main approaches to pleural effusion are drainage of the effusion (by thoracocentesis or with permanent pleural catheters) and pleurodesis (obliteration of the pleural space by causing the visceral and parietal pleura to adhere to each other). Guidelines for treatment and prevention of subsequent pulmonary emboli are available. A recent review paper indicates that non-pharmacological interventions include walking aids, breathing training and, in chronic obstructive pulmonary disease, pulmonary rehabilitation (Level 1 evidence). Regular, low dose, sustained release oral morphine (Level 1 evidence) titrated to effect (with regular aperients) is effective and safe. Oxygen therapy for patients who are not hypoxaemic is no more effective than medical air. If a therapeutic trial is indicated, any symptomatic benefit is likely within the first 72 hours. A systematic review has also shown that benzodiazepines might have a role which needs to be better determined. [1] Ried M, Hofmann HS. The treatment of pleural carcinosis with malignant pleural effusion. Dtsch Arztebl Int. 2013;110:313-8. [2] Lehto J, Anttonen A, Sihvo E. [Treatment of dyspnea and other respiratory symptoms in palliative care]. Duodecim. 2013;129:395402. [3] Ben-Aharon I, Gafter-Gvili A, Leibovici L, Stemmer SM. Interventions for alleviating cancer-related dyspnea: a systematic review and meta-analysis. Acta Oncol. 2012;51:996-1008 [4] Wiseman R, Rowett D, Allcroft P, Abernethy A, Currow DC. Chronic refractory dyspnoea—evidence based management. Aust Fam Physician. 2013;42:137-40 [5] Frere C, Debourdeau P, Hij A, et al. Therapy for cancer-related thromboembolism. Semin Oncol. 2014;41:319-38 [6] Uresandi F, Monreal M, García-Bragado F, et al . National Consensus on the Diagnosis, Risk Stratification and Treatment of Patients with Pulmonary Embolism. Arch Bronconeumol. 2013;49:534-47. IN23 CIRCULATING TUMOR CELLS AND TUMOR DNA: ARE LIQUID BIOPSIES A DREAM? Jean-Yves Pierga1,2, Francois-Clement Bidard1 1 Institut Curie, Laboratory of Circulating Tumor Biomarkers, SIRIC and Medical Oncology Department, Paris, France; 2Université Paris Descartes, Paris, France Since the first large study in 2004, the enumeration of circulating tumor cells (CTC) has emerged as a promising biomarker in breast cancer. Although there are numerous methods to detect CTC in the research setting, there is only one test that has repeatedly demonstrated its clinical validity (i.e. association with outcome) in breast cancer. This has been confirmed recently in a large pooled analysis the clinical validity of circulating tumor cells (CTC) as a dynamic prognostic biomarker in 1,944 metastatic breast cancer patients [2]. Moreover, this study demonstrated the superiority of CTC count over the serum markers CEA and CA15-3. Current prospective large interventional studies have been specifically designed to demonstrate the clinical utility of CTC detection in breast cancer patient, either as a prognostic factor (“TREAT CTC” NCT01548677 and “STIC CTC” NCT01710605), or as a tool to reassess the tumor HER2 status (“DETECT III” NCT01619111 and “CirCe T-DM1” NCT01975142). Recent negative results of the SWOG500 trial using CTC as a dynamic prognostic tool still supported the clinical validity of the test, but have postponed the use of this test in routine. The clinical data are less numerous in early stages, but also validate the prognostic value of CTC. Specific DNA fragments can be detected in the plasma, in general after the genetic alterations harbored by the primary tumor and/or its metastases have been characterized. The contribution of ctDNA relative to the use of CTC must be evaluated in prospective studies in particular for monitoring metastatic disease as a «liquid biopsy». Several highly sensitive techniques, such as digital PCR have been used for the purposes of finding a single ctDNA molecule within a large volume of plasma sample. Recent studies has shown that ctDNA detection is associated with tumor burden but its prognostic value is unclear [3]. Demonstration that the method can be used to take better care of patients with MBC in a cost-effective manner awaits further studies. S30 Abstracts / The Breast 24 S3 (2015) S21–S75 Next generation sequencing analysis of ctDNA in plasma could also complement current invasive biopsy approaches to identify mutations associated with acquired drug resistance in advanced disease. [1] Bidard FC., et al Clinical validity of circulating tumour cells in patients with metastatic breast cancer: a pooled analysis of individual patient data. Lancet Oncol. 2014;14:1470-2045 [2] Bidard FC, et al. Clinical application of circulating tumor cells in breast cancer: overview of the current interventional trials. Cancer Metastasis Rev. 2013;32:179-88. [3] Madic. J, et al, Circulating tumor DNA and circulating tumor cells in metastatic triple negative breast cancer patients, Int J Cancer, 2015;136:2158-65 IN24 CLONAL EVOLUTION IN BREAST CANCER PATIENTS AND PATIENT DERIVED XENOGRAFTS Sam Aparicio University of British Columbia and the BC Cancer Agency, Department of Breast and Molecular Oncology, Vancouver, Canada The notion that most cancers are ecosystems of evolving clones has implications for biological understanding and clinical application. The evolution of clonal composition has particular significance when evidence of positive or negative selection can be associated with the clonal genotype or epigenotype. Over the last 4 years next generation sequencing of tumours and methods for single cell analysis have opened up this approach for solid epithelial malignancies. I will discuss the implications of clonal evolution for cancer medicine and biological studies of cancer with reference to breast cancers. We have developed informatics approaches to population level clonal analysis and extended these to single cell measurements of genotypes. I shall discuss our more recent data from single cell sequencing and clonal analysis applied to clonal evolution of patient derived tumour xenografts, to illustrate the impact of clonal evolution on biological studies of cancer in model systems. IN25 PATIENT XENOGRAFT MODELS: CAN AN "AVATAR" HELP? Jens Hoffmann EPO – Experimental Oncology & Pharmacology Berlin-Buch, Berlin, Germany Patient derived xenografts (PDX or Avatars) are preclinical models for which clinical relevance has been described in many preclinical experiments. Several drug sensitivity screenings revealed an individual response to standard of care treatments comparable to historical data from clinical trials. Recently, preclinical phase II studies with up to 100 PDX models have demonstrated a strong correlation between tumor biology and treatment response. Breast cancer has been the first tumor type where targeted therapies with a corresponding biomarker have been successfully introduced (antiestrogens and herceptin). Nevertheless, frequently observed treatment resistance caused by inherent genetic and cellular heterogeneity of advanced breast cancer calls for more intensified efforts to individualize treatment. The manifold available genetic tests for ER+ tumors are only of prognostic value for early relapse to endocrine therapy or late recurrence. For advanced breast cancer, a clinically useful drug-specific predictor for treatment response still remains elusive. As it is now generally accepted that tailored treatment approaches, including specific schedules or combinations, can improve the therapeutic outcome for target-specific compounds and chemotherapy, breast cancer care needs, next to “established treatment guidelines”, support from integrative translational research. The implementation of such approaches, starting already during diagnosis and surgery can help to establish a rationale for an individual treatment out from the numerous possible options. Drug response in clinical trials with advanced breast cancer patients can frequently not be correlated with mutations, gene expression or other molecular markers as tissue samples are hardly repeatedly available. The development of personalized response predictors therefore still depend on the availability of surrogate models like PDX. Comprehensive studies that correlate pharmacodynamic data from PDX with systematic molecular tumor tissue characterization have improved our understanding of the disease and helped to design diagnostic procedures allowing optimal therapy for individual patients. These wet lab data together with molecular signatures are used for in silico modeling to identify new predictors for tailored therapies. While PDX have demonstrated their value for identification and validation of predictive signatures, a benefit for individual treatment prediction is currently under evaluation. A larger implementation of PDX studies in personal therapy planning is still restricted by several factors – the time for development of such models, high costs, and the limited take rates which are especially for breast cancer still challenging. However humanization of the mouse models is currently under evaluation to improve take rates and help to overcome some of the limitations. As we found that engraftment rates of PDX tumors were strongly correlated with advanced stage of the patient tumor, these models could especially be of value for improving and personalizing treatment of advanced disease. Furthermore PDX provide an exceptionally broad basis for translational research and the development of targeted therapies in the future. IN26 BIOPSY, REBIOPSY AND DEALING WITH DISCORDANT RESULTS IN ABC Nadia Harbeck, Rachel Würstlein University of Munich, Breast Center, Munich, Germany Targeted therapeutics are standard options in metastatic breast cancer. Changes in tumor biology (e.g., hormone receptor (HR) or HER2 status) between primary tumor (PT) and metastatic tissue may therefore substantially impact outcome and treatment choice following first recurrence in breast cancer (BC). A biopsy of the metastatic site may thus help to verify the diagnosis and re-assess ER, PR, and HER2. In the retrospective WSG DETECT PRIMET quality assurance study (n=635, 11 centers) BC phenotype in tissue from PT, involved primary lymph nodes (LN), and disease recurrence (DR) was compared. Tumor biology of metastatic and primary tissue differed in a substantial fraction of patients (HR: 19%; HER2: 22%, TN: 18%) and more than half of all switches occurred already in LN. Status changes, particularly loss of HR+ status, had significant prognostic impact. In the PRIMET collective, a switch in HR or HER2 status (or both) occurred in about 38% of metastatic tissue biopsies. In the literature, there are numerous retrospective reports of discordance rates as high as 30-40%. In prospective series, these rates seem to be somewhat lower leading to changes in treatment in about 15% of patients. For the above reasons, ABC2 recommended that a biopsy (preferably providing histology) of a metastatic lesion should be carried out, if easily accessible, to confirm diagnosis particularly when metastasis is diagnosed for the first time (Cardoso et al, 2014). Whether these observed discordancies represent true biological properties of the tumor or merely methodological inconsistencies can not be decided in all cases. If the results of tumour biology in the metastatic lesion truly differ from the primary tumour, it is currently unknown which result should be used for treatment-decision making. Since a clinical trial addressing this issue is difficult to undertake, ABC2 recommended considering the use of targeted therapy (endocrine and/or anti-HER-2 therapy) when receptors are positive in at least one biopsy, regardless of timing. In particular, specific targeted agents such as T-DM1 in HER2-positive disease, which do not require combination with standard chemoor endocrine therapy, need to be used carefully in case of discrepant tumor biology and therapy response must be closely monitored. Data is still lacking on differences in molecular alterations between primary Abstracts / The Breast 24 S3 (2015) S21–S75 tumor and metastases in particular regarding their clinical relevance. Thus, therapy trials in ABC need to collect tissue not just from primary but also from metastatic lesions in order to help understand tumor heterogeneity and its impact on response to targeted therapies. New comprehensive programs such as AURORA (BIG) as a pan-European program or PRAEGNANT (NCT02338167) in Germany will enhance our molecular understanding of tumor progression. Yet, until clinical trials incorporating molecular information derived from metastatic lesions have rendered clinically relevant results, patient management will depend on standard ER, PR, and HER2 derived from metastatic biopsies. [1] Cardoso F., et al. ESO-ESMO 2nd international consensus guidelines for advanced breast cancer (ABC2). Annals of Oncology 2014;00:1– 18. IN27 ADVANCED BREAST CANCER: IS THERE AN OPTIMAL SEQUENCE OF SYSTEMIC ANTICANCER AGENTS? Prudence A. Francis Peter MacCallum Cancer Centre, Division of Cancer Medicine, Melbourne, Australia. The sequence of systemic anticancer agents for patients with HER2 negative ABC should be tailored according to a variety of factors including: • Presence (HR+) or absence of hormone receptors (ER, PR) • Presence of other potentially actionable targets identified through additional testing (eg. androgen receptor, BRCA mutation, next generation sequencing) • Patient hormone profile in HR+ (postmenopausal vs premenopausal vs male) • Relevant clinical trial availability • Prior adjuvant treatments • Disease-free interval (DFI) and progression-free survival with prior therapies • Health (physiologic age, comorbidities, organ function, performance status) • Burden (volume and sites) of metastatic disease • Cancer therapies accessible to patient (available and affordable) • Patient preferences (eg. alopecia, oral vs intravenous, 3-weekly vs weekly) • Difficulty attending treatment centre • Toxicity with prior agents For a patient with advanced disease, selecting the optimal sequence of anticancer agents is also a dynamic process which evolves over time, as the above factors do not remain constant. Patients with HR+ advanced disease may survive for more than a decade, with possible change in ER/ PR expression, in addition to changes in age, comorbidities, cumulative toxicities, available therapies, and new information from clinical trials during that time. Endocrine therapies are the preferred initial options for HR+ advanced disease in the absence of a need for rapid tumour response or primary endocrine resistance. Loss of hormone receptor expression during progression may influence the number of sequential endocrine therapies. Patients with HR+ tumours experiencing short DFI and/or PFS on prior endocrine therapies may be less suited to receiving sequential different endocrine agents, while those with a slower tempo of disease under endocrine therapy maybe suitable for a sequence of consecutive different endocrine agents, in addition to withdrawal of an endocrine agent and/or oestrogen, as additional therapeutic manoeuvres. Patients with a lower burden of disease or older physiologic age may be considered for multiple lines of endocrine therapy before initiating cytotoxic therapy, and may receive capecitabine as initial cytotoxic agent, ahead of anthracycline and taxane therapy. For patients who prioritize avoiding alopecia, treatment with agents such as liposomal doxorubicin, vinorelbine, capecitabine, gemcitabine and metronomic cyclophosphamide may be chosen before taxanes. Patients travelling long distances to a treatment centre or for whom weekly attendance is problematic, may prefer 3-weekly docetaxel to weekly paclitaxel. Patients who cease taxane treatment due to symptomatic peripheral S31 neuropathy, may better avoid receiving drugs that may exacerbate neuropathy (i.e., eribulin or vinorelbine) as their next treatment, even though these drugs might be utilized subsequently, when neuropathy symptoms improve. IN28 DURATION OF FIRST-LINE CHEMOTHERAPY IN METASTATIC BREAST CANCER Alessandra Gennari, Nicoletta Provinciali E.O. Ospedali Galliera, Division of Medical Oncology, Genoa, Italy The management of metastatic breast cancer is a major clinical challenge for oncologists. Indeed, in spite of all of the available agents, this stage of disease can rarely be cured. With respect to treatment choice, it can be assumed that virtually all patients with metastatic disease sooner or later will require chemotherapy. In particular, for patients with hormone receptor-negative or endocrine-resistant disease, cytotoxic chemotherapy is indicated. The selection of optimum chemotherapy is influenced by the characteristics of patient and cancer as well as by patient and clinician preferences. There is, however, substantial controversy over how long chemotherapy should be extended, in the absence of significant toxicity, after the achievement of disease control. Over the past two decades, several clinical trials have addressed the issue of optimal chemotherapy duration in metastatic breast cancer [Gligorov et al. 2014, Young-Hyuck et al. 2012, Alba et al. 2010; Mayodromo et al. 2009; Gregory et al. 1997; Gennari et al. 2006; Nooji et al. 2003; French Epirubicin Study Group, 2000; Falkson et al. 1998; Ejlertsen et al. 1993; Muss et al. 1991; Harris et al. 1990; Coates et al. 1987]. The impact of extending the duration of chemotherapy beyond a fixed number of cycles has recently been investigated in a systematic review of these 13 randomized trials evaluating first-line chemotherapy in patients with metastatic breast cancer [Gennari et al. 2011]. A recent update of this metaanalysis, including also the most recent trials, indicate that longer chemotherapy duration is associated with a significant increase in overall survival, equivalent to approximately 4 months (hazard ratio [HR] 0.88, 95% CI 0.81-0.96) and a significant prolongation of progression-free survival (HR 0.65, 95% CI 0.6-0.7), compared with shorter durations. By multivariate analysis, no difference in effects on overall survival and progression-free survival among subgroups defined by time of randomization, study design, number of chemotherapy cycles in the control arm, or concomitant endocrine therapy was detected. After these results, patients should be therefore informed that they will likely get the best chance for an improved outcome with a longer chemotherapy administration. This approach must however be weighed against the detrimental effects of continuous chemotherapy delivery on quality of life. In fact, the management of a patient with metastatic breast cancer needs to be tailored on patient’s and cancer’s characteristics, but cannot even ignore patient’s needs and desires. [1] Gennari et al. Extending the duration of first-line chemotherapy in metastatic breast cancer: a perspective review. Ther Adv Med Oncol 2011;3:229-32 [2] Gennari et al. Duration of chemotherapy for metastatic breast cancer: a systematic review and meta-analysis of randomized clinical trials. J Clin Oncol. 2011;29:2144-9 IN29 SURGERY OF THE PRIMARY TUMOUR: SHOULD THE RECOMMENDATION BE CHANGED? Maria-João Cardoso Champalimaud Foundation, Breast Unit, Lisbon, Portugal Five to 10% of Breast Cancer Patients in the United States and Western Europe present with Stage IV disease at diagnosis. Only approximately one fifth of these patients will be alive after five years, and a minority (up to 5%) will be long term survivors. S32 Abstracts / The Breast 24 S3 (2015) S21–S75 For patients presenting with metastatic breast cancer at diagnosis systemic therapy is clearly the first choice but retrospective data from the last ten years showed an important benefit in survival when removal of the primary lesion with or without radiotherapy was added to an effective systemic treatment. In 2011 and 2013 the ABC1 and ABC2 guidelines stated that the value of removal of the primary lesion in patients with the novo stage IV breast cancer was currently unknown but it could be considered in selected cases adding that surgery would only be helpful if clear margins were obtained and the axilla was addressed as in patients with early stage disease. In December 2013, however, the results of two of the prospective ongoing randomized trials addressing the topic of surgery of the primary versus no surgery in de novo stage IV breast cancer, the TATA Memorial and the Turkish Federation Trials, were presented in San Antonio and both showed no benefit in overall survival for those patients submitted to removal of the primary lesion, except in selected cases of patients with isolated bone metastases. The results of these two trials questioned the assumption of previous reviews and meta-analysis that resection of the primary tumour in stage IV breast cancer confers an important survival advantage. The potential bias in these retrospective analysis were attributed to young age, small tumours and a low burden of disease (oligometastatic). Until more data are available from other ongoing prospective randomized trials, with an expected accrual of around 1000 patients, surgery should be cautiously recommended for de novo stage IV breast cancer particularly in the case of uncontrolled metastatic disease or when the disease is controlled in all sites but the burden is very high and no complications are expected from the primary location. Surgery seems to be still an option to consider in the case of oligometastatic disease when stage IV NED (non evidence of disease) can be achieved. Also surgery can be considered, with a palliative intent, for patients with controlled systemic disease but with a locally progressing lesion. Patients should be fully informed that for the moment loco-regional treatment of stage IV breast cancer lacks evidence of any survival benefit and for that reason and outside a clinical trial the choice, in case of loco-regional treatment, should be the most conservative option with the least possible morbidity. [1] Badwe R, Parmar V, Hawaldar R, et al. Surgical removal of primary tumor and axillary lymph nodes in women with metastatic breast cancer at first presentation: A randomized controlled trial. In: SABCS: 2013; San Antonio; 2013. [2] Cady B, Nathan NR, Michaelson JS, Golshan M, Smith BL: Matched pair analyses of stage IV breast cancer with or without resection of primary breast site. Ann Surg Oncol 2008;15:3384-3395. [3] Cardoso F, Costa A, Norton L, Cameron D, Cufer T, Fallowfield L, Francis P, Gligorov J, Kyriakides S, Lin N et al. 1st International consensus guidelines for advanced breast cancer (ABC 1). Breast 2012;21:242-252. [4] Cardoso F, Costa A, Norton L, Senkus E, Aapro M, Andre F, Barrios CH, Bergh J, Biganzoli L, Blackwell KL et al: ESO-ESMO 2nd international consensus guidelines for advanced breast cancer (ABC2). Breast 2014;23:489-502. [5] Harris E, Barry M, Kell MR: Meta-analysis to determine if surgical resection of the primary tumour in the setting of stage IV breast cancer impacts on survival. Ann Surg Oncol 2013, 20(9):2828-2834. [6] Patrick J, Khan SA: Surgical Management of De Novo Stage IV Breast Cancer. J Natl Compr Canc Netw 2015;13:487-493. [7] Petrelli F, Barni S: Surgery of primary tumors in stage IV breast cancer: an updated meta-analysis of published studies with metaregression. Med Oncol 2012;29:3282-3290. [8] Soran A, Ozmen V, Ozbas S, al e: Early follow-up of a randomized trial evaluating resection of the primary breast tumor in women presenting with the novo stage IV breast cancer: Turkish study (protocol MF07-01). In: SABCS: 2013; San Antonio; 2013. IN30 SURVIVORSHIP IN ABC: WHICH ARE THE MAIN ISSUES? Olivia Pagani Oncology Institute of Southern Switzerland (IOSI), Breast Unit, Bellinzona, Switzerland As the outcome of ABC has significantly improved over the last decades, the complex needs of patients living with advanced breast cancer and their caregivers should be addressed not only in terms of supportive and palliative care but also of “survivorship” requirements. The multidisciplinary approach of ABC should encompass early in the history of the disease not only physical but also functional, social, psychological and spiritual domains (Zimmermann 2014). It is important to clearly define with patients and families the disease context (“chronic” preferred to “incurable” disease), addressing the concept of uncertainty and tailoring the treatment strategy according to individual priorities and disease status (Silverman 2014). Specific psycho-social needs of young and elderly patients should also be recognized and supported, i.e. social security, job flexibility, rehabilitation (including sexuality), home and children care. [1] Zimmermann C, Swami N, Krzyzanowska M et al. Early palliative care for patients with advanced cancer: a cluster-randomised controlled trial. Lancet. 2014. doi: 10.1016/S0140-6736(13)62416-2 [2] Silverman R, Smith L, Sundar S. ‘Is it my last christmas dinner?’ survival of cancer patients having palliative chemotherapy during christmas period. BMJ Support Palliat Care. 2014;4 Suppl 1:A56. IN31 ADDRESSING THE EMOTIONAL NEEDS OF PATIENTS WITH ADVANCED METASTATIC BREAST CANCER Lillie D. Shockney Johns Hopkins University, Breast Center, Baltimore, USA Though the majority of individuals diagnosed with breast cancer today will become long term survivors, there continues to be many who will be forced to eventually succumb to their disease. From the point of diagnosis the focus of their care is on treating the disease and preserving hope. However at some point, preferably earlier than it currently happens today, the future hopes of these patients, many being young mothers, needs to be asked about and effectively addressed. She deserves to experience a good death. Johns Hopkins has been conducting retreats for patients dealing with advanced metastatic breast cancer since 2007. These retreats (3 days and 2 nights) are held semi-annually. One retreat is for couples and the other for patients not in a relationship; they are accompanied by a female caregiver. During this time frank and open discussion is fostered to help patients and their loved ones express what their greatest fears are of what likely lies ahead. From the identification of these fears, solutions are created and implementation begun with the goal that the patient will experience a good death when the time comes. A short video has been created to depict the heart and soul of the content of these retreats with examples of fulfilling hopes for these patients in alternative ways after they are gone. Patients and their loved ones arrive, having completed a survey that measures their fearfulness of the future and leave post retreat feeling more prepared and less fearful, having tools, resources and alternative methods to reduce their fears, fulfil their hopes of the future, and prepare their family for life without them physically present. A program planning guide has been created to facilitate the development and implementation of similar retreats to take place nationally and internationally. Since the inception of these retreats through the Johns Hopkins Breast Center, similarly designed retreats for patients with advanced pancreatic cancer, metastatic colorectal cancer, and metastatic ovarian cancer have also been held annually beginning in 2012. https://www.youtube.com/watch?v=Bg02G2a7uHo Abstracts / The Breast 24 S3 (2015) S21–S75 IN32 LIVING WITH MBC IS LIKE WALKING ON A TIGHT ROPE, A BALANCING ACT USING ALL RESOURCES, TO HOLD ON AND REACH THE OTHER END Evi Papadopoulos Europa Donna Cyprus, Nicosia, Cyprus Balance in the world of breast cancer metastasis for a woman who is going through the experience of the recurring disease, is essential for her survival. She must find the inner and outer resources to meet the challenges of her situation, to regain control, to harness her fears, to cope, to strive for normality and create stability and continuity. Much depends on her ability to adjust to the new situation, to communicate with doctors and medical carers, to understand her disease and try and live with it. However not all people have the same skills or education or even stamina to cope with the progressing disease and the new reality with shorter life prospects. Not all patients have the inner strength to rise above their reality and to create a liveable daily life within the family, the community and the working environment. So they become emotional exhausted. Women with MBC have been neglected, their needs unrecognised, keeping most of them in the shadows overcome by depression, disappointment and anxiety. Many felt that the medical world has written them off. ‘’As patients we need our medical carers to educate us and to empower us, to make us understand, to make informed choices with them, to have a positive outlook to our condition, sustaining therapies and side effects. We interpret survival in many ways, striving to discover our options to reduce our stress, to boost our moral, to care for our self image. Whether practical or spiritual, support improves our attitude, our pain threshold and the final outcome’’. In a multidisciplinary context of a specialised Breast Unit, an MBC woman of any age, needs to be cared for by the health professionals who can understand her individual situation, age and specific needs at every step of the way ahead. She needs to know that she is safe that she can be offered the best treatment choices and trust that the doctors will work with her in choosing and monitoring, her medication regime. Patient/ advocate groups can be beneficial for empowerment and practical support. Family concerns, financial, social and work matters but also social perceptions and taboos can be a huge burden on the MBC woman increasing the distress from her disease. The health system and the accessibility to treatments may cause further uncertainty losing the precious balance and leading the MBC woman to isolate herself and finally give up. Bringing out in the open, the special multifaceted needs of an MBC patient is an effort to improve services for better survival. IN33 S33 as a cross sectional example of high income settings and reflect on the policy lessons for the major emerging economies in terms of delivering affordable systems for breast cancer care, specifically focusing on India as an example of a complex emerging middle income country. [1] Fernandez-Luengo R, Leal J, Gray A, Sullivan R. Economic burden of cancer across The European Union: a population-based cost analysis. Lancet Oncology 2013;14:1165-1174. [2] Pramesh CS, Badwe RA, Sullivan R, et al. Delivery of affordable and equitable cancer care in India. Lancet Oncology 2014;15:223-233. [3] Mallath MK, Taylor DG, Sullivan R, et al. Growing burden of cancer in India: epidemiology and social context. Lancet Oncology 2014;15:205-212 IN34 BREAST CANCER CARE ACCESS AND AFFORDABILITY: ARE DRUGS THE MAIN ISSUE IN EUROPE? David Taylor University College London, Pharmaceutical and Public Health Policy Dept., London, UK This presentation begins with a brief overview of the changing disease burden due to breast cancer in Europe, and the extent to which survival improvements have been associated with an emergent pattern of advanced disease management challenges occurring in excess of a decade after the initial diagnosis. It then presents recent data on the overall costs of cancer care and oncology medicines in Europe and globally, and in particular those associated with breast cancer care and the interventions (ranging from radiological therapies to social support) required to extend and improve the lives of the individuals and families it affects. The main barriers to overcome in further improving outcomes are discussed, including the costs associated with accessing new (intellectual property protected) anti-cancer medicines. In the latter context an analysis of conflicting public and patient interests relating to drug pricing is offered. On the one hand patients and clinicians may well wish to optimise their minimal cost present use. On the other there are important benefits to be gained from providing appropriate economic and wider social incentives for both public and private investment in continuing therapeutic and service innovation. Potential solutions to current drug and other treatment related access and affordability problems are in conclusion critically considered. While the overall costs of breast cancer care are now in the order of 0.5 per cent of all health spending (ie 0.05% of GDP) in the average European nation (of which total pharmaceutical product outlays presently account for around 20 per cent – estimates to be confirmed), the benefits gained from effective treatment and care are also considerable. From an informed welfare policy perspective short term cost saving measures should not be permitted to undermine the longer term achievement of reduced suffering and loss of life caused by breast and other cancers. THE COST OF BREAST CANCER: A GLOBAL PERSPECTIVE IN35 Richard Sullivan Institute of Cancer Policy, King’s College London, King’s Health Partners Comprehensive Cancer Centre, Guy’s Hospital Campus, London, UK Across the world breast cancer continues to have a major economic cost to countries and families. In high income settings direct care and informal costs have to be balanced with productivity losses due to premature mortality and morbidity. High resolution studies of the economic burden of breast cancer show a wide variation in health care costs per incident case, with the majority of expenditure in in-patient (surgical, pathology, radiotherapy) and medicine costs. The ability to explore these costs in relation to progress in outcomes measured by changes in mortality across Europe provides clear policy messages for emerging economies as their burden of breast cancer begins to rise with changing socio-demographics. In this lecture we will explore the relationship between breast cancer care costs and outcomes using EU28 CAN WE REALLY APPLY INTERNATIONAL GUIDELINES IN LIMITED RESOURCES COUNTRIES? G.S. Bhattacharyya1, Hemant Malhotra2, K. Govindbabu3, A.A.B. Ranada4, Purvish M. Parikh5 1 Fortis Hospital, Anandapur, Kolkata, India; 2SMS Medical College, Jaipur, India; 3Kidwai Memorial Institute of Oncology, Bangalore, India; 4Deenanath Mangeshkar Hospital, Pune, INDIA; 5Asian Institute of Oncology, Mumbai, India The Universal Declaration of Human Right states that “everyone has a right to standard of living for the health and well being of himself and his family”. Cancer patients are not an exception. Inequalities in health, is probably an excellent indicator, reflecting the inequalities in society. More-so the mix of cancer that occurs around the world is driven largely by environment, geography and standard of living. Cancer S34 Abstracts / The Breast 24 S3 (2015) S21–S75 is often regarded differently, in different settings: preventable and often curable in developed nations but as a painful death sentence in limited resource countries. A close look at cancer incidence rates according to socio-economic, racial and ethnic groups in 80% of the world population living in developing countries, reveal significant differences; 80% all cancers are in advanced stage and are not curable, and 26% are caused by infectious disease. There is strong evidence that, patients from resource limited countries probably have higher incidence and shorter survival after diagnosis of cancer. In-fact 60% of all cancer patients are in limited resource country, 72% of all deaths from cancer occur in developing countries, and 77% of disability adjusted life years and 78% of years lost. This is due to limited access to medical treatment, un-informed about early detection, as well as the quality of available care. One of the reasons of improved outcomes of care in developed world has been due to use of evidence based clinical practice guidelines. In-fact the improvement of outcome has been due to guidance based cancer care, early detection and awareness with prevention. However the guidelines which have been developed for developed countries are difficult to adopt in limited resource countries. This is mainly because of a) Absence of expertise b) Weak infrastructure c) Costs d) Epidemiological transition and guidelines not integrated in them e) Accessibility f) Data generated is usually not from the region of application Hence very often there is resistance of application. If we are to have an internationally harmonized guideline, then these guidelines will have to have the following characters of validity, reproducibility, cost effective, representative / multi-disciplinary, unambiguous clinical applicability, flexibility, clear, reviewable, amenable to clinical audit. These guidelines should be resource stratified and must be integrable with the existing public health guidelines of the country. The concept of “resource – level appropriateness” recognises that effective intervention have progressed in high income countries through more than one generation. In a situation of insufficient healthcare infrastructure, uneducated public, not covered (out of pocket payment), calls for explicit analysis of effectiveness and cost of alternative approaches, which may help in preventing or countering natural attractions to newest, high technology (and expensive intervention); this thinking although intuitively simple, but filling in the details require systemic analysis of varying complexities. IN36 IS A TWO-SPEED (RICH VS POOR) ONCOLOGY INEVITABLE? George W. Sledge Stanford University, Stanford, USA Healthcare disparities arguably represent the single greatest cause of cancer mortality on a global basis. Surveys of world health routinely suggest that large swaths of cancer patients die because of inadequate access to appropriate and potentially curative therapy. These disparities in turn reflect major differences in wealth between and within nationstates, and at a structural level, differences between healthcare systems designed to support public health and those that are not. To what extent are these disparities inevitable; i.e., a simple function of the relative wealth of nations? Can we significantly reduce cancer death rates in the absence of admittedly utopian prescriptions for redistribution of global wealth? Breast cancer represents a valuable case study for the issue of “Two-speed Oncology”. Nursing and Advocacy OR37 UNMET PSYCHOSOCIAL AND QUALITY OF LIFE NEEDS OF PATIENTS LIVING WITH METASTATIC BREAST CANCER Marc Hurlbert2,3, Musa Mayer1, Katherine Crawford3, Shirley Mertz4, Virginia Knackmuhs4 1 AdvancedBC.org, Advocacy, New York, USA; 2Avon Foundation for Women, Breast Cancer Crusade, New York, USA; 3Metastatic Breast Cancer Alliance, Advocacy, New York, USA; 4Metastatic Breast Cancer Network, Programs, New York, USA MBC Alliance members (>30) work together to improve the lives of MBC patients. Objective: Review prior literature and patient survey reports related to MBC patients’ QoL needs, and assess extent to which US organizations are meeting them. Methods: (1) Research findings of >150 published, peer-reviewed research articles on advanced cancer patients’ needs, including quantitative and qualitative studies of MBC patients and their families, were summarized around the realities of living with MBC. (2) 13 surveys of ~8,000 MBC patients were examined for common concerns. (3) Desk research analysis of leading US nonprofits’ patient advocacy, research, education and support (n=16); analysis of websites (n=24) and print materials (n=27); interviews with leadership about services for patients (n=16); and online survey of helplines (n=8). Results: The extensive research base around MBC QoL issues was summarized into 6 categories: psychosocial distress; emotional support; information about the disease, its treatment, and resources; communication and decision making about care; relief of physical symptoms; and practical concerns. Sources of emotional support, individual and group psychotherapy, and counseling, as well as adequate information about the disease, its treatments, and methods to alleviate symptoms and side effects have been shown to be useful in helping patients cope with MBC. However, patients are typically not well informed in areas required for decision making about their care, and patient–clinician communication can be difficult. MBC symptoms and side effects of continuous treatment - fatigue, sleeping difficulties, and pain - and emotional distress interfere with daily life; supportive and palliative care is often insufficient. Financial hardship is a fact of life. Information and support services have a major role in improving QoL. While the majority of the major US breast cancer advocate organizations focus on meeting the support needs of the breast cancer community, not enough attention is paid to the MBC patient population. Information materials often require relatively high health literacy and knowledge of how to search and evaluate materials found on the Internet. There are limited dedicated helpline services for MBC patients; conferences/inperson networking events tend to be in large cities. Gaps in information include lack of detailed information on latest treatments, QoL, palliation, communication with health care providers, and advanced directives and end-of-life care. Conclusions: While QoL issues for MBC patients/caregivers are well understood, the resources and commitment to address these issues effectively are still lacking. Targeted information and support services addressing QoL needs are as necessary to patients as medical treatments. BP38 METASTATIC BREAST CANCER IN CANADA: WAITING FOR TREATMENT Niya Chari Canadian Breast Cancer Network, Government Relations, Ottawa, Canada Of the 24,400 women in Canada diagnosed with breast cancer each year, approximately 5% will have an initial diagnosis of metastatic breast cancer and 30% of women diagnosed initially with earlier stages of breast cancer will go on to develop metastatic breast cancer. Although Abstracts / The Breast 24 S3 (2015) S21–S75 the five year relative survival rate of women diagnosed with metastatic breast cancer remains only 20%, innovative new therapies have led to significant advancements in the overall treatment and disease progression of women living with metastatic disease. Yet despite the global progress in the development of new treatments for metastatic breast cancer, access to these new drugs in Canada remains inequitable. New drugs are approved for sale in Canada through a multi-step process. First the drugs are assessed by a federal review body, Health Canada, a process that usually takes between one to two years from the date of submission by the drug manufacturer. Following this approval, new drugs must be reviewed by two pan-Canadian assessment bodies to qualify for listing on the provincial and territorial drug formularies, which allow patients to access drugs at no cost or at a significantly reduced cost. Unfortunately, not all provinces and territories choose to include new drugs on their formularies. If a drug is not listed on a provincial/territorial formulary, the patient must cover the drug cost out of pocket or through private insurance, which creates a situation of unequal access and affordability across Canada. Given the extensive review process for new treatments, and the vastly differential coverage for metastatic treatments in provinces/territories across the country, the Canadian Breast Cancer Network is producing a new report on wait times for new metastatic breast cancer treatments in Canada. The report provides a detailed overview of the present situation in Canada for drug approval and decision-making by provinces and territories about placing new metastatic drugs on their formularies, as well as an analysis of the positions of key stakeholders involved in making new drugs available and affordable. The report also shares a detailed portrait of the experiences and realities of people living with metastatic breast cancer and their family caregivers concerning access to new drugs. Utilizing the data from our report, this session will present an important opportunity for participants to gain valuable insights into the treatment challenges facing metastatic breast cancer patients and their families in Canada. The session will also describe and discuss the potential opportunities for, challenges around and successful strategies for advocacy to champion the patient voice and address the urgent treatment needs and concerns of metastatic breast cancer patients. PO39 EFFECTIVE ADVOCACY FOR WOMEN WITH METASTATIC BREAST CANCER: A EUROPEAN PERSPECTIVE Susan Knox Europa donna - The European Breast Cancer Coalition, Milan, Italy EUROPA DONNA - The European Breast Cancer Coalition, (ED) is an independent, non-profit organisation whose members are affiliated groups from countries throughout Europe. The Coalition works to raise awareness of breast cancer and to mobilise the support of European women in pressing for improved breast cancer education, appropriate screening, optimal treatment and care and increased funding for research. EUROPA DONNA represents the interests of European women regarding breast cancer to local and national authorities as well as to institutions of the European Union. Through our information, education and policy/public affairs initiatives, ED is working to ensure improved services for women with MBC. Our strength lies in having members in 47 European countries working together on the same objectives as the European coalition, thus enabling us to improve health services and have a major impact on parliamentarians and health ministries. ED started by conducting research on MBC in our member countries and conducting networking groups with members on MBC at our annual conferences. ED has been working to get the “EU guidelines for quality assurance in breast cancer screening and diagnosis” implemented since their publication in 2006 and wrote a short guide to these which we have translated into 17 languages. These guidelines already contain a description of key services that should be provided to women with MBC; however, thus far these have not been implemented in most specialist breast units. We therefore began communicating this important S35 information to all our advocates by publishing an annex on MBC so that our members could advocate for these services nationally. At the same time, we began a process of educating and convincing parliamentarians at the European level. A meeting at the European Parliament was held in February 2014 to raise awareness of the huge gaps in service. Later in 2014, we presented our position again at a European Parliament meeting and we worked with key MEPs to develop a new Written Declaration on the fight against breast cancer in the EU, highlighting MBC. This was launched in April 2015. ED provided the background to MEPs on this initiative, conducted a week-long exhibition and information session on it at the European Parliament; our member countries then wrote to their MEPs to insist on the passage of the declaration giving them 10 reasons to sign. Passage of the declaration is expected by the end of July. What is the key to effective advocacy: evidence based information, on-going education of advocates and the lay public concerning the issues, and never letting up until the objectives are achieved. PO40 UNMET NEEDS OF AUSTRALIAN WOMEN WITH METASTATIC BREAST CANCER WITH FINANCIALLY DEPENDENT CHILDREN: THE CONSUMER PERSPECTIVE Danielle Spence1, Michelle Marven1, Karla Gough3, Sanchia Aranda2 1 Breast Cancer Network Australia, Camberwell VIC, Australia; 2Cancer Institute NSW, Cancer Services & Information, Woolloomooloo, Australia; 3 Peter MacCallum Cancer Centre, Cancer Experiences Research, East Melbourne, Australia Background: Breast Cancer Network Australia (BCNA) is the peak national consumer organisation for Australians affected by breast cancer. We work to ensure they receive the very best support, information, treatment and care appropriate to their individual needs. There are no reliable figures on incidence or prevalence of metastatic breast cancer in Australia. It is estimated that approximately 15,600 Australians will be diagnosed with breast cancer this year, of which 10-15% are likely to develop metastatic disease. Methods: BCNA distributed an online survey to 1802 BCNA members identified in our database as having metastatic breast cancer; 582 (32%) participated in the survey. A modified version of the Supportive Care Needs Survey short-form was administered as part of this survey. When an unmet need was identified, respondents could nominate their preferred strategies for addressing unmet needs. Chi-squared tests were used to assess the association between unmet needs and having (or not having) financially dependent children. Results: In total, 474 respondents answered the modified needs survey. Respondents were from all states and territories in Australia, with 59% living in a metropolitan area. Most (60%) were aged between 50-69 years, although 24% were under 50 years. The majority (77%) had been diagnosed with metastatic breast cancer in the preceding five years, with 8% living for ten years or more. Thirty-three per cent (n=158) reported having financially dependent children. Women with financially dependent children reported significantly more unmet needs in all domains assessed, but the largest differences were observed in the sexual (‘changes in your sexual relationships,’ 39% versus 16%; ‘changes in your sexual feelings,’ 44% versus 22%; and ‘being given information about your sexual relationships,’ 32% versus 16%) and psychological (‘learning to feel in control of your situation,’ 46% versus 29%; and ‘concerns about the worries of those closest to you,’ 63% versus 46%) domains (all p ≤ 0.001). Strategies for self-care were consistently reported by women as a preferred source of help, along with help from a relationship counsellor or psychologist. Conclusions: Women with metastatic breast cancer and financially dependent children require targeted support and information, particularly related to, but not limited to, sexual well-being. Based on these findings BCNA is developing a targeted information and support strategy, including trialing a free telephone counselling service, to assist women experiencing these issues. S36 Abstracts / The Breast 24 S3 (2015) S21–S75 PO41 MIDDLE EASTERN ABC/MBC PATIENTS:OVERCOMING THE TRIPLE-BURDEN OF STIGMATIZATION, LACK OF INFORMATION AND RECURRENT ILLNESS Rania Azmi “Survive & Thrive” Initiative, For Cancer Patients Support, Middle East, Kuwait It is a well-known fact that advanced or metastatic breast cancer (ABC/ MBC) is a complex and significantly serious illness. ABC/MBC patients usually take the lion share in everything related to their illness, from treatment challenges to the psychological and emotional burdens. ABC patients usually feel isolated, under represented compared to breast cancer patients among the other feelings. In the Middle East; ABC/MBC patients are even challenged with more factors. In addition to the main two typical burdens of illness itself and the knowledge that this illness is incurable; Middle Eastern ABC/MBC patients face the extra burdens of stigmatization, that sometimes reaches the level of a taboo, and lack of information if not ignorance about some of the key scientific facts about their cancer and its treatment options. Over and above, considering that a large percentage of ABC/MBC patients in the Middle East is from older generations, this usually means limited access to updated information that are mostly available in English or other foreign languages than Arabic. This creates a vicious cycle of miscommunication and misleading information when patients seek in their own unverifiable information from the Internet, especially those in their native language. Finally, the Arabic culture always makes women very protective of their families, especially their children, where they are always so keen to hide the cancer recurrence news from their families and as a result they could face the challenges of feeling isolated or depressed, with no channels to communicate their needs or feelings. While every effort is made to address the typical challenges breast cancer patients face in the Middle East, including education and awareness campaigns, the triple-burden of stigmatization, lack of information and cancer complications in MBC patients is mostly overlooked if not considered already an inevitable causality in the fight against cancer. Accordingly, the patients’ advocacy efforts in the Middle East should rely on at least three dimensions if the are to target effectively ABC or MBC patients: 1st: The communication dimension with the public and between patients-oncologists to overcome any stigmatization proactively. 2nd: The information bank dimension where advocacy efforts could mobilize easy-to-understand, timely and reliable information for the use of MBC patients to help them and their caregivers in making informed decisions. 3rd: The cancer treatment dimension, where international efforts are required to make new treatments accessible to Middle Eastern patients as they become available with a primary focus on measuring and increasing the perceived patient’s quality of life. of patients/caregivers, as well as to explore the patient’s treatment journey. Materials and Methods: The MYDC survey, conducted in the United States between June and August 2014, included women with ABC aged ≥ 21 years, caregivers (aged 18 years) of women with ABC, and medical oncologists. The survey was administered online, by phone, and by paper. Patient and caregiver data were not weighted. No estimates of error can be computed. Results: Survey respondents included 359 patients, 234 caregivers, and 252 oncologists. Majority of patients felt that it was important to discuss long-term treatment goals (92%) and alternative/complementary treatment options (72%) with their doctor at their initial ABC diagnosis, however, actual discussion happened less frequently (53% and 26%, respectively). Similarly, while most patients (92%) felt that conversations regarding the management of treatment side effects (SEs) were important, only 58% indicated that these conversations actually took place at their initial diagnosis. Majority of the patients (56%) and caregivers (74%) did not initially realize the severity of treatment SEs, with 46% of patients and 67% of caregivers indicating a desire for more help from their healthcare team in managing SEs. Yet, over 4 of 10 patients (43%) had not always openly discussed SEs with their oncologist. Nearly all patients (96%) reported experiencing some change in their appearance and 44% stated that cancer had stolen their dignity. Although the majority of caregivers (94%) stated that they try to maintain a positive outlook, 77% reported feeling emotionally burdened and 86% stated that their own life had been negatively impacted. Although nearly all oncologists (97%) reported that following the journey of their patients with ABC gave them a greater appreciation of life, 42% felt that treating these patients had a lot of negative emotional impact. Conclusions: The MYDC survey provides evidence of communication challenges and emotional burden faced by patients with ABC and those caring for patient with ABC (informally as a caregiver or formally as an oncologist). Improving patient-doctor communication by encouraging patients and caregivers to ask direct questions regarding treatment goals, SE management, and emotional burden and by educating oncologists on gaps in communication with patients regarding these topics could help in addressing some of the unmet needs of patients with ABC. PO43 “FIGHT, LIVE, KEEP SMILING”: THE FIRST ITALIAN BLOG ABOUT METASTATIC BREAST CANCER (MBC) ADDRESSED TO THE GENERAL PUBLIC. A QUALI-QUANTITATIVE ANALYSIS OF ALL THE COMMENTS POSTED ONLINE ON THE BLOG OF THE EUROPA DONNA ITALIA MBC WORKING GROUP Francesca Balena1, Tiziana Moriconi2, Ilaria Vacca1, Mimma Panaccione1, Barbara Bragato1, Ivana Policiti1, Sabrina Franci1, Tiziana Farci1 1 Europa Donna Italia, MBC Working Group, Milano, Italy; 2Galileo servizi editoriali; Salute Seno – D la Repubblica, Milano, Italy PO42 MAKE YOUR DIALOGUE COUNT SURVEY: ADDRESSING COMMUNICATION GAPS BETWEEN PATIENTS WITH ADVANCED BREAST CANCER, THEIR CAREGIVERS AND ONCOLOGISTS AND UNDERSTANDING INFORMATION AND EMOTIONAL NEEDS TO IMPROVE TREATMENT AND SIDE EFFECT MANAGEMENT Helen L. Coons4, Ivis Sampayo3, Victoria Harmer1, Robyn Bell Dickson2 1 Imperial College Healthcare NHS Trust, Charing Cross Hospital, Breast Care Unit, London, W6 8RF, United Kingdom; 2Nielsen, Youth & Education Research, New York, NY 10004, USA; 3SHARE, Programs, New York, NY 10036, USA; 4Women’s Mental Health Associates, Health Psychology, Denver, CO 80204, USA Background: The needs of patients with advanced breast cancer (ABC) are distinct from those of patients with early breast cancer and often remain unaddressed. The Make Your Dialogue Count (MYDC) survey was conducted to identify communication gaps between patients/caregivers and oncologists, to understand the information and emotional needs Metastatic breast cancer patients are often young women, and many of them have a job, a family and children. Despite this, little is said about their stories and needs in the media: the advanced cancer is still a taboo in Italy. In order to overcome this situation, five women of the Europa Donna Italia MBC Working Group have created a blog on the “D la Repubblica” website, one of the most popular women’s magazine in the country. Their goal is to tell their stories of life with MBC, and to get in touch with many of the 30,000 MBC patients which live in Italy today. At the moment, this blog is one of the largest online self-help community dedicated to the needs of advanced/metastatic breast cancer patients in Italy. Since the blog has been created, in January 2014, it has collected more than 600 comments, and got 8,793 page views per month and 5,742 unique visitors per month (source: Webtrekk, March 2015). In order to draw attention to the problems the MBC Italian patients face everyday, and also to understand how the blog can be supportive, we conducted a qualiquantitative analysis of all the comments. Some of the topics covered are: “the choice of where to get treatments”; “the relationship with physicians and with healthcare facilities”, “the relationship with their community”, “the life with therapies and with the follow-up”, “the sex life”, “the Abstracts / The Breast 24 S3 (2015) S21–S75 side effects of drugs”, “the daily life”. One of the goals is to draw up the guidelines for the Europa Donna Italia advocacy activities in the MBC field. The project was supported by unconditional grant from Amgen. PO44 IN OUR SHOES: RAISING THE VOICES OF MBC PATIENTS Lori Marx-Rubiner METAvivor Research and Support, Annapolis, MD, USA Objective: The “In Our Shoes” survey was developed as an opportunity for women and men living with metastatic breast cancer (MBC) to share their thoughts and concerns related to living with MBC. Areas addressed include demographic information, the impact of MBC on relationships with friends and family, the nature of their relationships with healthcare practitioners, and their understanding of investment in the advocacy landscape surrounding MBC. Methods: The survey was distributed in April 2015 via social media, including posts to the METAvivor and personal blogs, numerous Twitter and Facebook announcements over the course of 2-3 weeks, promotion within large pools of advocates including the weekly #BCSM twitter chat, and word of mouth. Networking with international organizations was attempted as well. Results: The survey accrued 370 responses, of which 343 are included in the data evaluation. (27 respondents indicated that they had not received a diagnosis of MBC and were therefore excluded from analysis.) The survey allowed for the inclusion of incomplete responses to encourage broad participation, and allowed for annotative comments for many questions in order to capture the experience of MBC patients as they articulate it. Greater collaboration with international advocacy groups would provide an understanding of global realities, as well as a basis for comparing the extent to which MBC patients share similar experiences based on country and/or region. Respondents were generous in sharing candid insights about how they cope and adapt to life as a terminal patients in the context of many of the relationships that surround them, including family and friends, healthcare providers, and advocates who work in and on behalf of the MBC community. PO45 INFORMATION NEEDS OF YOUNG WOMEN WITH METASTATIC BREAST CANCER TO MANAGE THEIR TREATMENT, SIDE EFFECTS AND CLINICAL TRIALS Medha Sutliff, Desiree Walker, Michelle Esser, Jean Rowe, Megan McCann Young Survival Coalition, National Programs, New York, USA Background and Methods: Young women (YW) diagnosed with metastatic breast cancer (MBC) face a set of unique issues and concerns. Young Survival Coalition (YSC) is the premier global organization dedicated to critical issues particular to YW and breast cancer. In 2012, YSC engaged in a two year long process called the Research Think Tank (RTT) to determine the most pressing research questions in need of answers. The RTT found that research into MBC in YW was rare and determined the topic to be a top research priority. After identifying this priority, from September, 2013 to February, 2014 YSC conducted an online survey of women diagnosed with any stage of breast cancer before age of 41, who either had MBC at initial diagnosis or developed it thereafter. Results: The survey revealed that an overwhelming majority of YW with MBC searched for information on treatment and prognosis (95%), clinical trials (69%) and management of side effects (88%). For each category, between 22 to 33% said there was information they searched for but could not find. Information found lacking included prognosis statistics, treatment and side effect information, updates on new treatment and medical advances, information on different types and locations of metastases, clinical trial information, information on rare side effects, and alternative therapies to manage side effects. Seventy-six percent of respondents looked for information on how long YW are living S37 with MBC, and 80% said this information would be helpful. There were frequent comments about outdated information, there being “no hope” and “scary statistics.” Respondents complained that there is not enough data that is accurate, easy to understand and scientifically supported. Information found is too generic and general rather than being specific to the YW’s situation. YW with MBC had to judge the accuracy of the information found, especially from news reports. A centralized location to find information relevant to MBC with easier terminology, a bank of current research and more information overall that is easy to find and access would help, according to survey respondents. A greater focus on YW is also needed. For clinical trials, respondents identified better search engines, easier to read and understandable materials, someone to speak with on the phone to help them navigate through trial information and filter out inapplicable trials, more current information, one clear resource instead of multiple sources, and listings for MBCspecific clinical trials as helpful tools. Conclusion: YW living with MBC have important information needs that are currently unmet. YSC will be updating its on-line information and website to better meet these needs. PO46 I AM ANNA: EXPLORING METASTATIC BREAST CANCER THROUGH THE EYES OF A YOUNG WOMAN Shawna Ginsberg Rethink Breast Cancer, Breast Cancer Department, Toronto, Canada Through research and front-line support work, Rethink Breast Cancer listens to young women living with metastatic breast cancer voice their sense of isolation within the breast cancer community. They feel there is a lack of support and resources available to them that address their unique needs. In addition to the needs that arise from their age and life stage, young women living with metastatic breast cancer face ongoing treatments and their side effects, as well as coping with chronic disease and end of life issues. Documentary film is a powerful medium to connect audiences with the experience of the subjects in the film, which helps raise the awareness and understanding of the issues and challenges presented. I AM ANNA tells the insightful story of Anna Craig: a mother, wife, artist, architect and young woman living with metastatic breast cancer. The film follows Anna’s inspiring journey to create her legacy by building an addition to her house that fulfills her artistic dreams and leaves something for her family. Through this process we watch her help to build a support network for young metastatic women. The presentation will include a screening of I AM ANNA (30 minutes) followed by a Q&A with Anna Craig, patient advocate and blogger. Anna will discuss living with metastatic breast cancer as a young woman, creating a legacy and how film can be used as a resource in the psychosocial oncology community to open dialogue, explore challenging issues, provide support and inspire other young metastatic women to use their voices for change. PO47 IDENTIFYING DEFICITS AND NEEDS FROM STAKEHOLDERS ABOUT PALLIATIVE CARE ISSUES Shankpal Pramod Health Alert Organisation of India, Health Department, Garud colony, Deopur, Dhule, India Objectives: Our Cancer NGO aims to analyzing palliative care issues/ needs and their status. ESMO/WHO urgently needs to focus on development of palliative care for breast-cancer patients. For developing nations this approach will certainly have positive impact on breast cancer management. NGOs working in remote areas can develop policy paper for implementation in the rural/tribal areas. Method: Our NGO volunteers and nurses conducted this pilot study in six rural villages of India. 7 nurses, 2 physicians and 1 counselor S38 Abstracts / The Breast 24 S3 (2015) S21–S75 participated. 146 patients, 34 caregivers, 18 spiritual/community leaders participated. Relief of distressing symptoms reported in 80%. Responses on palliative care analyzed using questionnaires while community/ spiritual leaders participated through focus group discussions. 90% participants expressed need for model that incorporates palliative services into the mainstream of medical therapy should be emphasized as standard care approach. Results/findings: Poor wellbeing, appetite, pain and fatigue were most prevalent symptoms reported by the patients. 50% of the patients reported severe pain and 9% reported no pain. Spiritual pain control had highest correlation to QOL in comparison to functional, emotional, physical and social wellbeing. 90% of patients and caregivers reported free communication about illness. We also need to modify attitudes of caregivers towards psychosocial needs of breast cancer patients and their families. Breast cancer care hospitals must have separate departments for handling these issues. Conclusions/recommendation: This study gives demographic picture of terminal cancer patients and family caregivers in public healthcare system and some aspects of palliative care. Resource-poor-nations need NGO to develop such programs in absence of governmentrun-healthcare-setup. We NGO activists need conference to discuss our project ideas/concerns/difficulties with senior researchers from USA/EUROPE. ESO must take initiative in propagating such efforts in developing-nations. Development of comprehensive breast cancer service program is distant dream in resource poor nations. We NGO patient advocates need international funding support for palliative care programs. PO48 TERMINOLOGY USED IN ADVANCED BREAST CANCER AND THE NEED FOR CONSISTENCY Maria Leadbeater1, Tara Beaumont2 1 Ashgate Hospice, Macmillan Clinical Nurse Specialist Palliative Care, Old Brampton, Chesterfield, UK; 2South West Yorkshire Partnership NHS Trust, Macmillan Palliative Care, Barnsley, South Yorkshire, UK Terminology used in oncology is frequently derived from ancient Greek, E.g. the term ‘metastatic’ meaning to ‘change place’. The past decade has seen many advances in both identification of sub types of breast cancer and its treatments. Consequently terminology to describe breast cancer has evolved; both patients and health professionals use a range of terms to describe the disease, in addition to the traditional TNM classification of malignant tumours. There is a need for terminology to clearly explain the stage of breast cancer and individual assessment, to appreciate the complex prognostic factors involved and an awareness of potential difficulties, which can arise when terms are misinterpreted. A survey of breast care nurses found wide variations in terminology used and the need for consistency and clarity when talking with patients and professionals. The term ‘metastatic’ was widely used by international organisations attending a global advocacy working group in New York (MBCAWG 2009). In the UK the National Institute for Health and Clinical Excellence (NICE 2009) published guidance on advanced breast cancer and the European School of Oncology Advanced Breast Cancer(ABC) guidelines (2012)clarifies the term ABC includes locally advanced, inoperable breast cancer. In the UK, cancer charities frequently use the term ‘secondary’ which can be ambiguous, with patients reporting confusion about what is relevant for them when accessing information. A survey of 46 breast care nurses was undertaken, the findings demonstrated 77% used more than one term when talking to colleagues, terms ranged from metastatic 41%, secondary 35%, advanced breast cancer 19% and stage 4 5%. Other terms used when talking with colleagues included recurrence 1%, distant spread 1% and aggressive 1%. When talking with patients 54% of nurses used the term secondary with advanced breast cancer used by 14% and other terms used were recurrence or distant spread. 15% of nurses reported the term secondary had other meanings which included; a second primary cancer or secondary care. Advanced breast cancer describes a complex, disease and individual assessment of the patients understanding of their illness is essential. Arguably defining the precise terminology may not be as important in the treatment setting where each person’s treatment is individually planned, based on their specific diagnosis. However, there can be difficulty in translating clinical trial findings to the patient populations and from the perspective of patient information it is important correct terminology is used to ensure the patient is receiving appropriate information, which is one of the recommendations for clinical practice. PR49 GETTING BACK INTO LIFE Shirley Bianca Mueseler Zebra Breast Cancer Counselling Centre, Dusseldorf, Germany I am a two-time breast cancer survivor, Dutch, living in Cologne, Germany. In 2000 I was diagnosed with a collision tumor, triple-negative and a third tumor, which was benign. All three cosily nested in one breast. Exactly 5 years later I had a second cancer. After my first surgery with immediate partial reconstruction, I went through chemotherapy and radiation. THIS TRACK WAS A MARATHON AND NOT A SPRINT. Breast cancer changed my life completely. One of my new challenges was painting; I had never painted before. Images were created in my subconscious. I decided to make a story out of it, just for myself. 22 Paintings with the title “Message of Hope”… my healing journey. Then my friends told me: “you have to do something with it”. So I began to contact international cancer organisations, they were interested and invited me to present my Slideshow. Since 2010 ECCO//ESMO//ASCO// ECPC// EUROPA DONNA//REACH TO RECOVERY INTERNATIONAL// VITAL OPTIONS INTERNATIONAL+++ have been supporting and inviting me to speak about “Getting back into Life”, as well as to present and exhibit my survivorship story “Message of Hope”. My mission is to encourage breast cancer patients and motivate them to unlock their creative potential, which could heal both soul and body. My project is to reinforce the connection between Art, Cancer and Patients Supportive Care. My goal is to make a difference in the Breast Cancer Community through creative expression. I believe ART IS LIFE and LIFE IS ART. Just recently I decided to commit myself in a unique project “Global License in Oncoplastic Surgery”. Initiated by 2 Doctors. They will present this issue for the first time in a special session at the Barcelona Breast Meeting BBM in March. My painted poster “The Expert Eye” will be incorporated: Using my Artwork to Speak Out. There is no official Oncoplastic Surgery Specialty Training. This need to be created as an integral part of Breast Surgical Training worldwide and be a concept of WHO to be established. We patients need the availability of a reliable Global Register of Specialists. Oncoplastic Surgery can be involved in any stage of Breast Cancer. OPS was originally conceived to help patients with large tumors, locally ADVANCED BREAST CANCER.WHAT IS MY PASSION? To inspire breast cancer patients how to express their feelings thru Art. To advise breast cancer patients finding Specialists in Oncoplastic Breast surgery so that they can be confident to receive top health care. There are Too Many Mastectomies, Too Many Mutilations and Too Many Breast Centres WITHOUT Licensed Specialists in Oncoplastic Breast Surgery. THIS breaks my heart! PR50 PSYCHOLOGICAL SUPPORT TO CANCER PATIENT THROUGH VOLUNTEERS AND SURVIVORS Aditya Manna MAS Clinic and Hospital, Oncology Dpt., Purba Medinipur, India Introduction: The diagnosis of cancer is like a bolt from the blue to the patients and relatives. It causes tremendous mental stress and panic. Taking the patient and the family members out of such mental and familial stress is a very difficult job. Abstracts / The Breast 24 S3 (2015) S21–S75 Aim: The idea is to overcome such mental and familial stress utilizing the services of volunteers and survivors as doctors are too busy to be able to spend quality time with the patients. Method: We have a substantial flow of cancer patient as oncology unit of MAS Clinic, India. The idea is to train volunteers to do this communicating under the guidance of doctors. Through regular orientation get together of new patient and their relatives with survivors and volunteers. Result: Till the end of 2014 we have been able to successfully do this kind of job in a substantial number of patients where come to our notice. Conclusion: Psychological support is an essential element of holistic patient care in diagnosis of cancer. And this can be effectively done through the help of volunteers and survivors also. Clinical Issues: Medical Oncology S39 Conclusions: Symptoms increase during the first 3 mts of 1st-line treatment and differ between pts receiving monoCT or ET for ABC. In contrast, no change in mean global QoL can be detected. Our data indicate that global QoL alone might not be sufficient to compare treatments and should not serve as the sole base for decision making. BP52 IS THERE A DIFFERENT TREATMENT RESPONSE BETWEEN VISCERAL AND NON-VISCERAL METASTATIC BREAST CANCER: A SYSTEMATIC LITERATURE REVIEW OF REGISTRATION TRIALS Rachel Würstlein, Maximilian Bardenhewer, Alexander König, Thomas Kolben, Caroline Gehring, Nadia Harbeck Medical Center of the Ludwig-Maximilians-University, Department for Gynecology of Obstetrics and Comprehensive Cancer Center of LMU, Munich, Germany OR51 NO IMPACT OF INCREASING SYMPTOMS ON QUALITY OF LIFE? LONGITUDINAL DATA FROM THE GERMAN MALIFE-PROJECT ON PATIENTS RECEIVING MONOCHEMO- AND ENDOCRINE TREATMENT FOR ADVANCED BREAST CANCER – RESULTS FROM THE TMK REGISTRY GROUP Norbert Marschner4, Arnd Nusch3, Thomas Decker2, Michaela Münz1, Lisa Kruggel1, Martina Jänicke1 1 iOMEDICO, Clinical Epidemiology and Health Economics, Freiburg i. Br., Germany; 2Onkologie Ravensburg, Onkologie, Ravensburg, Germany; 3 Praxis für Hämatologie und internistische Onkologie, Hämatologie und internistische Onkologie, Velbert, Germany; 4Praxis für interdisziplinäre Onkologie & Hämatologie, Interdisziplinäre Onkologie & Hämatologie, Freiburg i. Br., Germany Introduction: Systemic treatment of advanced breast cancer (ABC) aims to prolong survival while maintaining or improving quality of life (QoL). Clinical trials often report no difference in QoL between treatments, even in case of differing side effect profiles. Can patientreported outcomes (PROs) in routine practice be used to better evaluate the impact of different treatments on QoL? Patients and Methods: MALIFE is conducted with the Tumour Registry Breast Cancer II (TMK II), an ongoing, prospective, national, observational study of patients (pts) with breast cancer recruited at the start of (neo) adjuvant or palliative systemic therapy in Germany. Besides pts’ and tumor characteristics, all systemic therapies and outcome data are recorded. Pts regularly receive a set of validated questionnaires and some specifically constructed PRO measures. By 2016, 2000 pts will have been recruited by more than 250 office-based medical oncologists. In this interim analysis, data on global QoL (FACT-G) and symptoms (EORTC QLQ-BR23 - BRST-Score, FACT-Taxane and Brief Fatigue Inventory (BFI)) are compared during the first 6 months (mts) of ABC treatment with monochemo- (monoCT, n=166) or endocrine therapy (ET, n=95). A 10% change is considered clinically relevant. Results: Pts were ø 67/60 years old (monoCT/ET) at the start of 1st-line therapy. Questionnaire return rate was 80/82% and 64/68% after 3 and 6 mts (monoCT/ET). At the 6 mts survey, 64% of patients continued 1stline therapy, 24% had changed treatment strategy. Change in treatment and return rate did not affect the overall data presented. About 50% of pts receiving monoCT reported clinically relevant increased symptoms (BRST-Score), especially dysgeusia, irritated eyes and hair loss, as well as polyneuropathy (FACT-Taxane, subscale polyneuropathy) after 3 mts of treatment. While polyneuropathic symptoms remained at 6 mts, other assessed symptoms decreased. Mean impairment of daily life by fatigue (mean BFI interference score) increased in the first 3 mts, but had decreased at 6 mts. About 30% of pts receiving ET reported clinically relevant increased symptoms at 3 mts, mainly hot flushes, irritated eyes and hair loss. At 6 mts, 30% of pts again reported increasing hot flushes. Mean impairment of daily life by fatigue increased at 3 and 6 mts. Mean global QoL (FACT-G) remained unchanged during the first 6 mts of monoCT or ET, and did not differ between the two treatment strategies. Introduction: Differential efficacy of newly registered therapies in subgroups of metastatic breast cancer (mBC) is an important consideration for their subsequent use in clinical practice. Such subgroup analyses are often exploratory, rarely statistically adequately powered and may thus be misleading. In a systematic literature review, we evaluated differences in outcome regarding progression free survival (PFS), time to progression (TTP), overall survival (OS) and visceral versus non-visceral disease. The impact of HER2- and hormone receptor-status was also considered. Methods: A systematic literature search (6362 hits) in the meta-Database PubMed was performed for the last 20 years. 257 studies (n=126,291) were included for further analysis. 69 studies had published data for visceral (i.e. presence of visceral metastases independent of the presence of other metastasis sites) vs. non visceral (i.e. non-visceral metastases in the absence of visceral involvement) disease including phase III trials plus studies that had further used their data. Out of these 69 studies we selected n=16 studies (n=13,083) by considering (A) the medical product’s professional information and (B) the decision of the U.S. Food and Drug Administration or the European Medicine Agency for the approval of the therapeutic agents which are now used in treatment of mBC. All selected 16 studies had looked at the endpoints mentioned above. In order to achieve comparability, we extracted the information of hazard ratios (HR), confidence intervals (CI) and times in weeks (if available) for PFS, TTP, OS of the entire study population, which was divided into three groups: HER2-positive, HER2-negative, unknown HER2 status. Results: No statistically significant difference in treatment response was found in mBC patients looking at HRs and CIs. Relevant, yet not statistically significant differences were found in the specific response of visceral metastases to modern combination therapies, especially in HER2-positive breast cancer: There was a benefit regarding OS using lapatinib combined with trastuzumab or trastuzumab and docetaxel combined with pertuzumab. Additionally, in two chemotherapy trials, there was a numerical difference between therapy response in visceral vs. non-visceral metastases regarding PFS in the unknown HER2 group, and regarding OS in the HER2 negative group. Conclusions: In the subgroup analyses, we did not find any significant differences in response rates for visceral vs. non-visceral metastasis. For targeted therapies based on a biomarker, there seems to be a beneficial effect of combination therapies regarding OS in visceral disease. At the present time, metastasis localization should not be used as a predictive marker for choice of systemic therapy in mBC. S40 Abstracts / The Breast 24 S3 (2015) S21–S75 PO53 CLINICAL IMPACT OF METRONOMIC ORAL COMBINATION CHEMOTHERAPY WITH CAPECITABINE AND CYCLOPHOSPHAMIDE IN PATIENTS WITH METASTATIC BREAST CANCER Miwa Fujihara, Shoichiro Ohtani, Mistuya Ito, Yukiko Kajiwara, Yuri Yoshimura Hiroshima City Hiroshima Citizens Hospital, Breast Surgery, Moto-machi, Naka-ku, Hiroshima, Japan Background: Interest in oral agents for the treatment of metastatic breast cancer (MBC) has increased due to patients’ preference for oral therapy over intravenous (IV) therapy. However, although the quality of life is better with oral therapy, patients are generally unwilling to sacrifice efficacy when prioritizing oral over IV therapy. Capecitabine (X) and cyclophosphamide (C) can be orally administered and have synergistic effects with non-overlapping toxicities in patients with MBC. Clinically, we have observed heavily pretreated patients with MBC with excellent efficacy with XC therapy and less toxicity. In this study, we retrospectively evaluated the efficacy and safety of an oral combination of XC therapy. Methods: A retrospective review was conducted of human epidermal growth factor receptor (HER)2-negative patients with MBC who received XC therapy at Hiroshima City Hiroshima Citizens Hospital; adverse events, time to progression (TTP), and overall survival (OS) were used to evaluate the clinical response to XC therapy. Doses of X and C were determined according to the phase I results from the Kyushu Breast Cancer Study Group (Ohno S et al. Anticancer Research, 2007). A dose of 1657 mg/m2/day capecitabine and 65 mg/m2/day cyclophosphamide was given orally twice daily for 14 days. The treatment was repeated at 3-week intervals until disease progression or treatment interruption due to adverse events. Results: Between 2009 and 2015, we analyzed 71 patients with MBC (median age, 56; range, 27–85 years), with a median previous chemotherapy regimen (range, 0–7). The overall response rate was 40.3%; the response rate (RR) was 41.2% in hormone receptor (HR)positive cancers and 35.0% in HR-negative cancers. The median TTP was 273 days [95% confidence interval (CI), 224–363 days) and median OS was 1045 days (95% CI, 665–1749 days). The median TTP was 197 days in patients who required extended interval or dose reduction and 326 days in patients on standard treatment regimes (p = 0.0047). Further, median TTP was 197 days in patients who suffered from hand-foot syndrome (HFS), whereas 284 days in patients without HFS (p = 0.0362). Grade 3 or 4 leukopenia was observed in 12 cases (16.9%), neutropenia in 10 (14.1%), anemia in 3 (4.2%), and thrombocytopenia in 0 cases (0%). Non-hematological toxicities were mild. HFS was observed in 14 cases (19.7%), although no cases of grade 4 HFS occurred. Only two patients with grade 3 hemorrhagic cystitis interrupted therapy due to adverse events (cyclophosphamide side-effects). Conclusion: Oral XC therapy was very effective with less toxicity in HER2-negative MBC. XC therapy may be a promising oral chemotherapy regime in light of its cost-effectiveness, quality of life, and preference of patients with MBC. PO54 A RETROSPECTIVE MULTICENTER OBSERVATION STUDY IN METASTATIC BREAST CANCER PATIENTS: COMPARATIVE ANALYSIS ON EFFICACY OF ERIBULIN MESYLATE WITH TAXANE REGIMENS (INCLUDING COMBINATION WITH BEVACIZUMAB) Yasuko Kikuchi3, Kazuo Shirakawa1, Hajime Kanauchi2, Takako Wakeda3, Takayoshi Niwa3, Kotoe Nishioka3, Keiichirou Tada3, Yoshihiro Uchida1 1 International University of Health and Welfare Mita Hospital, Breast Center, Tokyo, Japan; 2Showa General Hospital, Breast and Endocrine Surgery Department, Tokyo, Japan; 3The University of Tokyo Hospital, Breast and Endocrine Surgery Department, Tokyo, Japan Aim: Recently approved eribulin (Eri) has been shown to improve overall survival (OS) in phase 3 study with metastatic breast cancer (MBC) patients (pts). But head-to-head studies on OS have not been reported yet, comparing Eri with taxane regimens (TAX) including combination of bevacituzumab (B+T) which are standard therapeutic regimens for the early line MBC pts. Here we presented comparative analysis on efficacy of Eri with TAX in a retrospective multicenter observation study in the early line MBC pts. Method: MBC pts who received Eri or TAX; taxane monotherapy (nabpaclitaxel and docetaxel: T) or B+T between August 2011 and March 2014 in our institute were analyzed in this study. Kaplan-Meier method was utilized to estimate median PFS and OS and log-rank test was used to compare OS and PFS between regimens. Survival post progression (SPP) was also analyzed to investigate the effect of post-treatment. Results: This study identified 192 MBC pts who received Eri (103 pts) or TAX (89 pts). Median age was 60 and 63 years for Eri and TAX, respectively. Median number of prior chemotherapy was one for each regimen. Median OS were 876, and 578 days for Eri and TAX, respectively. Eri significantly prolonged OS compared with TAX (p<0.001). Median PFS were 245 and 148 days for Eri and TAX, respectively. In subgroup analysis B+T prolonged PFS but did not prolonged OS, compared with T as already reported. Eri significantly prolonged OS compared with T and B+T (Eri vs T; p<0.01, B+T; p<0.001). SPP of Eri was superior to TAX, T or B+T. Conclusions: This study showed that Eri improved OS significantly compared with TAX and B+T. OS prolongation by Eri was supposed to correlate to SPP prolongation. This study warrants further evaluation of eribulin in early line MBC patients. PO55 EFFICACY AND SAFETY OF ERIBULIN IN ANTHRACYCLINE AND TAXANE-PRETREATED PATIENTS: RUSSIAN EXPERIENCE Elena Kovalenko, Lydmila Manzyuk, Elena Artamonova Russian Scientific Oncological Center, Research of New Antitumor Agents, Moscow, Russian Federation Background: Eribulin is a novel antimicrotubule drug. We assessed efficacy and safety of eribulin in anthracycline- and taxane pretreated patients. Methods: Twenty patients with a median age of 55 yrs (43-71 yrs) and ECOG status 0-2 were assessed (10 patients from a randomized 301 study, 10 patients from everyday practice). Eleven (55%) patients were ER/PR-positive, 8 (40%) – triple-negative, 1 (5%) – HER2-positive. Most of the patients (70%) had visceral metastases. Eribulin was administered as 1st line in 3 (15%) patients, as 2nd – in 3 (15%) patients, as 3rd and later lines – in 14 (70%) patients. A total of 84 cycles were administered (2-9, median 4). Results: Efficacy was assessed every 6 weeks. Objective response occurred in 5 (25%) patients (2 ER+ patients with lymph node and liver metastases and in 3 triple-negative patients with visceral and skin metastases). Stable disease registered in 8 (40%) patients, progression– in 7 (35%). Median duration of response was 16 weeks (6-36 weeks), median PFS was 12 weeks (6-52 weeks). The most common type of toxicity was hematologic. Neutropenia grade III-IV was observed in 7 (35%) patients in 10 (12.0%) cycles, but no febrile neutropenia registered. One (5%) patient experiences fatigue grade II and 1 (5%) – abdominal pain grade II associated with constipation. Peripheral neuropathy grade II was observed in one (5%) patient. Dose reduction due to toxicity was performed in 4 (20%) patients, dose delay – in 1 (5%) case. No further dose reductions were needed. Overall the drug was well tolerated. Treatment was never withdrawn due to toxicity. Conclusions: Eribuline is a treatment of choice after progression on anthracyclines and taxanes. The drug is safe and effective in this hardto-treat population. Abstracts / The Breast 24 S3 (2015) S21–S75 PO56 PO57 BOLERO-4: A PHASE 2, OPEN-LABEL, MULTICENTER, SINGLE-ARM TRIAL INVESTIGATING THE EFFICACY AND SAFETY OF FIRST-LINE EVEROLIMUS (EVE) IN COMBINATION WITH LETROZOLE (LET) IN POSTMENOPAUSAL PATIENTS (PTS) WITH ESTROGEN RECEPTOR– POSITIVE (ER+), HUMAN EPIDERMAL GROWTH FACTOR RECEPTOR 2–NEGATIVE (HER2–) METASTATIC OR LOCALLY ADVANCED UNRESECTABLE BREAST CANCER (BC) CLINICAL EFFICACY OF LH-RH ANALOGUE PLUS AROMATASE INHIBITOR IN PREMENOPAUSAL WOMEN WITH ESTROGEN RECEPTOR–POSITIVE ADVANCED BREAST CANCER: A SINGLE-INSTITUTION RETROSPECTIVE STUDY Thomas Bachelot1, Cristian Villanueva8, Melanie Royce9, Marc Debled4, Felipe Melo Cruz5, Roberto Hegg3, Thomas Brechenmacher7, Corinne Manlius6, Francois Ringeisen6, Fatima Cardoso2 1 Centre Léon Bérard, Breast Cancer Unit and Clinical Trial Unit, Lyon, France; 2Champalimaud Clinical Care, Breast Unit, Lisbon, Portugal; 3 Hospital Perola Byington/FMUSP, Centro de Referência da Saúde da Mulher, São Paulo, Brazil; 4Institut Bergonié, Medical Oncology, Bordeaux, France; 5Instituto Brasileiro de Controle do Cancer, Clinical Oncology, Mooca, Brazil; 6Novartis Pharma AG, Oncology, Basel, Switzerland; 7 Novartis Pharma S.A.S., Oncology, Rueil-Malmaison, France; 8University Hospital of Besançon, Service d’Oncologie Médicale, Besançon, France; 9 University of New Mexico Cancer Center, Internal Medicine, Albuquerque, New Mexico, USA Endocrine therapy (ET) is the standard of care for postmenopausal, hormone receptor–positive (HR+), HER2– advanced BC (ABC); however, resistance to ET frequently develops. One possible mechanism of this resistance is the cross talk between ER signaling and the PI3K/AKT/ mTOR pathway. Efficacy of EVE plus exemestane (EXE) vs placebo plus EXE was established in the pivotal phase 3 BOLERO-2 trial in women with HR+ ABC progressing on ET, with a statistically significant increase in median progression-free survival (PFS) of 4.6 months (local assessment), and a non-statistically significant improvement in median overall survival of 4.4 months. Exploratory subset analysis indicated a significant PFS benefit in women who received EVE plus EXE as first-line therapy in the ABC setting. The activity of LET in the first-line setting is well documented, and the safety and efficacy of EVE plus LET has been demonstrated in the neoadjuvant setting in postmenopausal women with HR+ BC. BOLERO-4 (NCT01698918) is investigating the efficacy and safety of first-line EVE plus LET and the potential benefits of continuing EVE plus ET beyond initial disease progression. Postmenopausal women with ER+, HER2– metastatic or locally advanced BC with no prior therapy for advanced disease receive EVE (10 mg/day) plus LET (2.5 mg/day) until first disease progression. Thereafter, pts have the option to receive EVE plus EXE (25 mg/day) until further disease progression or unacceptable toxicity; EVE plus EXE is not offered to pts who discontinue therapy because of unacceptable toxicity in the first-line setting. The primary endpoint is PFS in the first-line setting. Secondary endpoints include overall response rate (ORR), clinical benefit rate (CBR), and safety in pts receiving EVE plus LET in the first-line setting and PFS, ORR , CBR, and safety in pts receiving EVE plus EXE in the second-line setting. The effectiveness of an alcohol-free 0.5-mg/5-mL dexamethasone oral rinse to reduce the severity and/or duration of stomatitis is being evaluated in a subpopulation of pts in countries where the oral rinse is commercially available (United States). The Oral Stomatitis Daily Questionnaire is being collected for all pts who experience stomatitis. Exploratory endpoints include biomarker analysis of bone resorption/formation and evaluation of additional biomarkers for further elucidation of disease characteristics. The trial opened for enrolment in Europe, Asia (including Japan), and the Americas in the first quarter of 2013. Enrolment was completed in December 2014 (N=202). BOLERO-4 will report in 2016 on the efficacy and safety of first-line EVE plus LET in the metastatic BC setting as well as the efficacy of continuing EVE-based therapy following initial disease progression. S41 Toshiaki Utsumi, Naomi Kobayashi, Masahiro Hikichi, Kaori Ushimado, Yuki Ri Fujita Health University, Breast Surgery Department, Aichi, Toyoake, Japan Background: A combination of an LH-RH analogue and an aromatase inhibitor (AI) is a promising option for treatment in premenopausal women with estrogen receptor (ER)–positive metastatic breast cancer. This study aimed to evaluate the efficacy and safety of an LH-RH analogue plus an AI in premenopausal women with metastatic breast cancer in a single institution. Material and Methods: Between October 2010 and December 2014, 18 premenopausal women with ER–positive metastatic breast cancer were treated with an LH-RH analogue plus an AI as a second- or third-line endocrine therapy at Fujita Health University Hospital. Four patients who had bilateral breast cancer were excluded from analysis. We present the single-institution, retrospective, experience of an LH-RH analogue plus an AI in a total of 14 premenopausal women with metastatic breast cancer. Survival curve was generated using the method of Kaplan-Meier. Statistical analyses were carried out with PASW Statistics18 software. Results: Median age was 44 (range; 34-50). Thirteen patients had ER+/progesterone receptor (PgR)+ disease. One had ER+/PgR- disease. All patients had HER2 negative disease. Two (14.3%) of the patients presented with stage IV disease, while the rest experienced recurrence after earlier treatment of stage II disease. The sites of metastasis were bone in 8 patients, lung in 5, lymph nodes in 4, pleura in 2 and liver in 1. Overall, the last endocrine therapy before an LH-RH analogue plus an AI was an LH-RH analogue plus tamoxifen in 13 patients and tamoxifen in 1. All patients received leuprorelin. Nine patients received anastrozole and 5 received letrozole. Two patients experienced a partial response and 6 patients experienced stable disease 6 months or longer, giving an overall clinical benefit rate of 57.1%. The median progression free survival time was 12.5 months (range; 2.3-55.8). An LH-RH analogue plus an AI was well tolerated; no grade 3-4 toxicities were reported and none resulted in discontinuation of treatment. Conclusions: Our data suggests that a combination of an LH-RH analogue and an AI is an effective and well-tolerated treatment in premenopausal women with ER–positive advanced breast cancer. PO58 DOES PREVIOUS NEOADJUVANT/ADJUVANT TRASTUZUMAB INFLUENCE THE DISEASE OUTCOME OF METASTATIC HER2 POSITIVE BREAST CANCER PATIENTS TREATED WITH FIRST LINE TRASTUZUMAB AND CHEMOTHERAPY Snezana Milosevic, Nemanja Stanic, Ivana Bozovic-Spasojevic, Zorica Tomasevic, Snezana Susnjar Institute for Oncology and Radiology of Serbia, Daily Hospital for Chemotherapy, Belgrade, Serbia Introduction: Until recently first line trastuzumab-based therapy had been the standard of care for women with HER2-positive metastatic breast cancer (MBC). The aim of this analysis was to investigate if previous neoadjuvant/adjuvant trastuzumab therapy influenced the disease outcome in patients (pts) treated with first/line trastuzumab and chemotherapy (CT) for metastatic breast cancer. Patients and Methods: We analyzed a group of HER2 positive MBC pts treated with trastuzumab in combination with anthracycline and/or taxanes during 2014 at Institute for Oncology and Radiology of Serbia. All of them had their receptor (ER/PR/HER2) status determined from primary tumors and for some of them re-biopsies with determination of ER/PR/HER2 were done. HER2 status was defined as ICH 3+ or IHC2+/ CISH+ or SISH+. We looked at overall response rate and progression - S42 Abstracts / The Breast 24 S3 (2015) S21–S75 free survival (PFS), defined as a period from the first therapy cycle administration until disease progression (PD). Statistics included Kaplan Meier test and Log Rank tests). Results: We identified 80 HER2 positive MBC pts treated with firstline trastuzumab therapy in combination with anthracyclines and/ or taxanes (paclitaxel or docetaxel) of median age of 53 years (range 26-74). At the time of diagnosis 35/80 (44%) had early-stage BC, 11/80 pts (14% ) locally advanced BC and 34/80 pts (42%) was diagnosed with metastatic disease. Rebiopsies were done in 17 pts with the confirmation of HER2 positive BC. Eleven out of 80 pts (14%) were treated with firstline trastuzumab in combination with anthracyclines and taxanes and in 69/80 pts (86%) trastuzumab was combined with taxanes only. Median number of docetaxel cycles were 7 (range 4-8) and of weekly paclitaxel were 9 (range 6-12), and after cessation of CT the treatment in pts w/o PD was continued with trastuzumab alone, or trastuzumab with endocrine therapy if HR positive. Among pts diagnosed with stage 1-3 BC 18/46 (39%) received neoadjuvant/adjuvant trastuzumab with average 14 cycles. All patients with ER and/or PR positive BC received adjuvant endocrine therapy. Median number of first-line trastuzumab cycles was 18 (range 2 - 104). Treatment responses were as follows: CR in 9/80 pts (11%), PR in 23/80 pts (29%), SD ≥6 mos in 43/80 pts (54%), and PD as best response had 5/80 (6%) pts. Median PFS for all group of HER2MBC was 18 mos (95%CI 11.13-24.87). There was a significantly reduced PFS for pts previously treated with neoadjuvant/adjuvant trastuzumab in comparison with trastuzumab naive pts (14 mos 95%CI 10.9 – 19.3 vs. 29 mos, 95%CI 38.6–60.1); Log-rank, p<0.01. Conclusion: It seems as if pts with HER2 positive MBC who had been previously treated with neoadjuvant/adjuvant trastuzumab derived less benefit from first-line trastuzumab therapy. PO59 DURABLE REMISSIONS WITH TRASTUZUMAB TREATMENT FOR HER2 POSITIVE METASTATIC BREAST CANCER – SINGLE CENTER EXPERIENCE Zoran Tomasevic, Zorica Tomasevic, Dobrica Neric, Snezana Milosevic, Bozovic-Spasojevic Ivana, Zdrale Zdravko, Aleksandra Sarcevic, Daniela Kolarevic Institute for Oncology and Radiology of Serbia, Daily Hospital, Belgrade, Serbia and Montenegro Background: Trastuzumab improves response and survival in patients with HER2+ metastatic breast cancer. In this study, we examined patients who had non-progressive disease for at least 2 years after diagnosis of inoperable loco-regional recurrent or metastatic breast cancer under continuous trastuzumab treatment. Primary goal is to assess the longterm outcome of patients with durable response to trastuzumab. Methods: Between 2005 and May 2015, 23 patients with HER2-positive inoperable locally recurrent or metastatic breast cancer and nonprogressive disease for at least 2 years under first line trastuzumab treatment were consecutively documented at the Institute for Oncology and Radiology of Serbia. Treatment was initiated with paclitaxel/ trastuzumab, and continued with trastuzumab ± hormonal treatment after median 18 weekly doses of paclitaxel (16-30). Hormonal treatment is accompanied trastuzumab in 11/23 patients (47.8%). Results: Median age was 53 years. Metastatic disease was diagnosed at initial presentation in 7/23, and at relapse in 16/23 patients. Metastases were present in the liver (6), lungs (5), bones (9), soft tissues (6), CNS (1), and 12/23 patients have multiple locations of metastases. Remission was confirmed in 15/23 patients (65.2%), with 10 complete remissions (43.4%). Median duration of response is 43+ months. The median duration of trastuzumab is 48 months (range 24-120 months+). Progression is confirmed in 4/23 (17.4%) patients; 2 with liver metastases, and 2 with soft tissue metastases. Median duration of trastuzumab treatment in patients with progression was 26 months (25-28). There were no deaths due to metastatic breast cancer at the time of this analysis. There was no cardiac toxicity mandating trastuzumab cessation. Conclusion: Trastuzumab can induce durable responses in a subset of patients with HER2 positive metastatic breast cancer. According to the current recommendations, trastuzumab should be continued until progression. PO60 THE ROLE OF LAPATINIB IN THE MANAGEMENT OF HER2-POSITIVE METASTATIC BREAST CANCER: A REVIEW OF A SINGLE INSTITUTION’S EXPERIENCE DURING THE TRASTUZUMAB AND LAPATINIB ERA Junichiro Watanabe, Satomo Matsuo Shizuoka Cancer Centre, Breast Oncology Department, Shizuoka, Japan Background: Since new monoclonal antibodies, such as pertuzumab and ado-trastuzumab emtansine, are now being introduced, the practice treating HER2-positive metastatic breast cancer (HER2+MBC) is now changing dramatically. We herein review our experiences during the trastuzumab (TRA) and lapatinib (LAP) era with the aim of evaluating the clinical significance of LAP use in the treatment of HER2+MBC. Patients and Methods: We reviewed our medical records for 140 HER2+MBC patients who were treated between September 2002 and November 2014. The COX regression analyses were applied to identify the risk factors for survival, and the Kaplan-Meier method with a logrank test was utilized to evaluate the overall survival (OS). Results: The characteristics of the 140 HER2+MBC patients were as follows: median age at the diagnosis of MBC, 54 years (range 31-76); primary advanced disease, 43 cases (30.7%), inflammatory appearance, 9 cases (6.4%) and estrogen receptor (ER) positive, 54 cases (38.6%). The metastatic site(s) at the diagnosis of MBC were as follows: lung 43 cases (30.7%); liver 42 cases (30.0%); bone 51 cases (36.4%) and brain 9 cases (6.4%). All patients received TRA-based therapy, and 52 (37.1%) patients received LAP-based regimen(s). Within the observation period, 28 luminal-HER2 and 40 HER2+, for a total of 68 (48.6%) patients, developed brain metastasis (BM), with a median time to BM of 1,612.0 and 1,149.0 days, respectively. The median OS from the diagnosis of HER2+MBC was 1,526.0 days (95% confidence interval [CI], 464.0-4498.0). The multivariate COX regression analyses disclosed that the patients who received a LAP-based regimen, LAP with capecitabine or TRA, had a significantly reduced mortality rate (hazard ratio [HR], 0.42; range 0.27-0.64; p=0.0001), and that this treatment significantly improved their OS (median 2233.0 versus 1199.0 days; p=0.0001) compared to patients who received only TRA-based therapy. The presence of a bone lesion at the time of diagnosis was associated with the patients’ survival (HR, 1.96; range 1.28-3.00; p=0.002); however, the patients’ age, ER status, and the presence of visceral lesions or BM at the diagnosis of HER2+MBC did not. The patients who developed BM during anti-HER2 therapy had increased mortality due to their brain lesion, with a HR of 1.97 (1.26-3.10, p=0.003), however, the use of LAP significantly improved their post-BM survival (median 622.0 days with LAP versus 287.0 days without LAP; P<0.01). Conclusions: According to our institutional review, LAP played a significant role in the management of HER2+MBC in terms of improving the patients’ survival. Various antibody-centered therapies will be the mainstream of HER2+MBC management, however, we conclude LAP will remain a useful treatment option. PO61 ORAL VINORELBINE IN COMBINATION WITH TRASTUZUMAB AS A FIRST LINE THERAPY OF METASTATIC OR LOCALLY ADVANCED HER2-POSITIVE BREAST CANCER Fadi Farhat3, Joseph Kattan2, Marwan Ghosn1 1Faculty of Medicine- Saint Joseph University, Hematology-Oncology, Beirut, Lebanon; 2Hotel Dieu de France University Hospital, HematologyOncology, Beirut, Lebanon; 3Lebanese University, Hematology-Oncology, Beirut, Lebanon Background: The efficacy of vinorelbine (V) with trastuzumab (T) has shown to be more than just additive in vitro. Moreover, V-T combination proved to be an effective first line treatment for patients (pts) with locally advanced (LA) or metastatic breast cancer (MBC) (HERNATA phase III trial). Oral chemotherapy (CT), preferred by most of the pts, represents a step forward in MBC management with a growing use in Abstracts / The Breast 24 S3 (2015) S21–S75 S43 this setting. In order to improve pts’ comfort using the oral form of V, we conducted a multicenter phase II study to investigate efficacy and safety of the oral V-T (OVT) combination. Methods: Main eligibility criteria: HER-2Neu positive disease (3+ IHC or FISH+), no adjuvant CT within the last 6 months and no prior CT for MBC. Pts were treated with oral V (oV) 80 mg/m2 D1, D8, D15 (following first 3 administrations at 60 mg/m2 during the first cycle) for a total of 8 cycles (1 cycle = 3 weeks); in combination with (T) 6 mg/ kg on D1 (loading dose, 8 mg/kg) every 3 weeks or 4 mg/kg (loading dose, 6 mg/kg) weekly. Continuation and schedule of (T) were at investigator’s discretion. Response was evaluated every 2 cycles using RECIST 1.0.Primary endpoint: Objective response rate (ORR); secondary EPs: Duration of response (DOR), progression free survival (PFS), overall survival (OS), safety. Results: In the full population (n=26), median age was 50.7 years (range 31.3-80.7); median WHO PS 0 (range 0-1). 69% of pts were postmenopausal and 65% took prior (neo)adjuvant CT. Early stage treatment consisted of a combination of anthracyclines (AC) and taxanes (TX) in 27% of pts. Overall 46% of the pts were pretreated by AC, 38.5% by TX. Median disease free interval was 50.7 (95% CI [43.6-57.9]) months (m). Most frequent metastatic sites were bone (61.5%), liver (50%) and lymph nodes (42%). 73% of pts had 2 or more metastatic sites. A median of 8 oVT cycles were given (range: 3-12): 19% of oV doses were not escalated to 80mg/m2 starting cycle 2. 92% of pts administered T every 3 weeks. In the evaluable pts population, ORR was 56% (95% CI [34.9-75.6]), including 3 complete responses (12%) and 11 partial (44%), 8 pts (32%) had stable disease resulting in a clinical benefit [or disease control] rate of 88 % (95% CI [68.8-97.5]). Median DOR was 7.1m (95% CI [3.9-10.2]). At the time of the analysis, median PFS was 6.7m (95% CI [3.5-10]) and median OS 27.9m (95% CI [17.4-38.3]). Treatment was generally well tolerated with main observed grade 3-4 hematological toxicities being neutropenia (46%) and anemia (4%). Grade 3-4 nausea-vomiting were observed in 11.5% of pts. Conclusion: Our results confirm the efficacy of OVT combination as a first line treatment in Her2 Neu+ LA or MBC pts with an acceptable safety profile. OVT optimizes the convenience of this CT regimen, especially for the pts receiving T every 3 weeks. distinct biological and clinical implications as compared to those relapsing after prior treatment for early stage BC (recurrent disease). We evaluated the patterns of care and clinical outcomes of HER2-positive metastatic breast cancer (MBC) pts receiving first line trastuzumabbased therapy, according to the type of metastatic presentation. Materials and Methods: This is a retrospective cohort study conducted at 14 Italian centers within the GIM (Gruppo Italiano Mammella) group. Consecutive pts undergoing first-line trastuzumab-based therapy were eligible for the study. Analyses were performed according to the type of presentation of metastatic disease (de novo or recurrent). Dichotomous clinical outcomes were analyzed using logistic regression, and time-toevent outcomes using Cox proportional hazards models controlling for relevant demographic, clinicopathologic and therapeutic characteristics. All data were analyzed using Stata 12.3 (StataCorp LP). Results: A total of 416 MBC pts (median age, range 42 – 63 years) were included, 113 (27.2%) with de novo stage IV and 303 (72.8%) with recurrent disease. A total of 64 (56.6%) and 186 pts (61.4%) had hormone-receptor positive disease, respectively. Among pts with recurrent disease, 101 (33.3%) received prior trastuzumab-based therapy in the (neo)adjuvant setting. In pts with de novo stage IV disease and in those with recurrent disease, the following outcomes were observed, respectively: objective response rate (complete response + partial response), 163 pts (67.1%) vs 72 pts (72.0%) (adjusted odds ratio [OR] = 0.90; 95% confidence intervals [CI] 0.34–2.38; p = 0.833); clinical benefit rate (complete response + partial response + stable disease), 76 pts (76.0%) vs 187 pts (77.0%) (adjusted OR = 1.21; 95% CI 0.40–3.64; p = 0.731); median progressionfree survival, 14.4 months vs 14.7 months (adjusted hazard ratio [HR] = 1.21; 95% CI 0.79–1.86; p = 0.380); median overall survival, 55.9 months vs 49.0 months (adjusted HR = 1.26; 95% CI 0.71–2.23; p = 0.439). Conclusions: The clinical outcomes of HER2-positive MBC pts with de novo stage IV disease do not differ significantly from those of pts with recurrent disease. PO62 Uwe Güth2,3,5, Dorothy Huang5, Seraina Schmid4,1 Breast Center St. Gallen, Location Grabs, Grabs, Switzerland; 2Cantonal Hospital Winterthur, Obstetrics & Gynecology, Winterthur, Switzerland; 3 Cantonal Hospital Winterthur, Breast Center “Senosuisse”, Winterthur, Switzerland; 4Spital Grabs, Gynecology & Obstetrics, Grabs, Switzerland; 5 University Hospital Basel, Gynecology & Obstetrics, Basel, Switzerland PO63 CURE IN METASTATIC BREAST CANCER: AN AGGRESSIVE APPROACH DOES NOT APPEAR TO BE THE KEY TO THE BLACK BOX 1 FIRST LINE TRASTUZUMAB-BASED THERAPY IN HER2-POSITIVE METASTATIC BREAST CANCER PATIENTS PRESENTING WITH DE NOVO OR RECURRENT DISEASE: A MULTICENTER RETROSPECTIVE COHORT STUDY Matteo Lambertini6, Arlindo Ferreira4, Francesca Poggio6, Fabio Puglisi14, Federico Sottotetti3, Elena Poletto14, Emma Pozzi3, Emanuela Risi10, Antonella Lai1, Chiara Dellepiane5, Valentina Sini13, Serena Ziliani11, Gabriele Minuti9, Donatella Grasso8, Sara Fancelli2, Silvia Mura12, Paolo Pronzato6, Lucia Del Mastro7 1 Azienda Ospedaliera Universitaria di Sassari, Oncologia medica, Sassari, Italy; 2Azienda Ospedaliera Universitaria Pisana, Polo Oncologico, Pisa, Italy; 3Fondazione Maugeri IRCC, Unità Dipartimentale di Oncologia Medica, Pavia, Italy; 4Hospital de Santa Maria, Instituto de Medicina Molecular, Lisbon, Portugal; 5IRCCS AOU San Martino-IST, Department of Medical Oncology, Clinica di Oncologia Medica, Genova, Italy; 6IRCCS AOU San Martino-IST, Department of Medical Oncology, U.O. Oncologia Medica 2, Genova, Italy; 7IRCCS AOU San Martino-IST, Department of Medical Oncology, U.O. Sviluppo Terapie Innovative, Genova, Italy; 8IRCCS San Matteo University Hospital Foundation, Medical Oncology, Pavia, Italy; 9Istituto Tumori Toscano, Civil Hospital of Livorno, Department of Medical Oncology, Livorno, Italy; 10Oncology Unit B; Sapienza University of Rome, Department of Radiology, Oncology and Human Pathology, Rome, Italy; 11Ospedale San Paolo, Oncologia Medica, Savona, Italy; 12Ospedale Santissima Annunziata, Oncology Unit, Sassari, Italy; 13Sant’Andrea Hospital, Sapienza University of Rome, Oncology Unit, Rome, Italy; 14 University Hospital, Department of Oncology, Udine, Italy Background: Approximately 5-10% of breast cancer (BC) patients (pts) have metastases at the time of diagnosis (de novo stage IV), suggesting Introduction: It is a generally held belief that once a breast cancer patient develops clinically detectable distant metastases, the disease will lead inevitably to death. This tenet, however, has been repeatedly called into question. Data from palliative chemotherapy trials showed long-term complete remissions and thus provided level III evidence in support of the hypothesis that distant metastatic breast cancer (MBC) might be curable in up to 3% of the cases through a multidisciplinary approach including combination chemotherapy regimens in selected patients with limited metastases, usually young and in otherwise good health. This study evaluates the rate of potentially cured patients in an unselected consecutive cohort of patients with MBC. Methods: We analyzed the data from 149 patients in whom MBC was diagnosed from 1990-1999 at the University Women’s Hospital Basel, Switzerland. Thirty patients (20.1%) had distant metastases at initial BC diagnosis (primary metastatic disease), and 119 patients (79.9%) had developed distant metastases over time, i.e. had secondary metastatic disease. The median age at the time of MBC diagnosis was 62 years. The criteria for being considered cured were: 1) the patients exhibited long-term survival; and 2) had no evidence for disease: the initially diagnosed metastatic lesions could no longer be detected. Results: Five patients (3.4%) fulfilled the criteria for being cured. From these, three patients had primary MBC. At the time of data analysis, three patients were still alive (survival time after the diagnosis of distant metastases: 17.6-21.2 years). Two elderly patients had died of other diseases (survival time: 9.3/11.3 years). There were two peaks of S44 Abstracts / The Breast 24 S3 (2015) S21–S75 age distribution at the time of MBC diagnosis: 41-57 years (n=3) and 76/79 years (n=2). Two patients had solitary metastatic lesions (bone, n=2; lung, n=1), one patient had extensive bone metastases, and one patient had multiple bony and pulmonary metastases. In only one of the five cases did the patient receive chemotherapy in the supposed palliative situation. Discussion: There are patients who, despite the diagnosis of distant metastases, may be considered cured of their disease; however, these cases are rare. The long-term survivors in our study cohort comprised a relatively heterogeneous group with regard to age at MBC diagnosis, therapy and metastatic sites. The factors contributing to the quite rare and felicitous case of long-term survival or even cure, can hardly be evaluated systematically and remain a black box. It appears, however, that aggressive chemotherapy-containing regimens, are not the key to solving the mystery of this black box. PO64 METRONOMIC CHEMOTHERAPY (CHT) COMBINATION OF VINORELBINE (VRL) AND CAPECITABINE (CAPE) IN HER2- ADVANCED BREAST CANCER (ABC) PATIENTS (PTS) DOES NOT IMPAIR GLOBAL QOL. FIRST RESULTS OF THE VICTOR-2 STUDY Marina Elena Cazzaniga7, Valter Torri1, Laura Cortesi8, Luca Clivio1, Antonella Ferzi2, Filippo Giovanardi3, Mariangela Ciccarese6, Palma Pugliese5, Silvia Della Torre4, Paolo Bidoli7 1 Mario Negri Institute, Oncology Unit, Milan, Italy; 2Ospedale Civile di Legnano, Medical Oncology, Legnano, Italy; 3Ospedale di Guastalla, Medical Oncology, Guastalla, Italy; 4Ospedale Guido Salvini, Medical Oncology, Garbagnate, Italy; 5Ospedale Sant’Anna, Medical Oncology, Como, Italy; 6 Ospedale Vito Fazzi, Medical Oncology, Lecce, Italy; 7San Gerardo Hospital, Medical Oncology Department, Monza, Italy; 8University of Modena and Reggio Emilia, Medical Oncology and Haematology, Modena, Italy Background: One of the main objectives in the treatment of ABC pts is the preservation of QoL, also by limiting the CHT-related toxicities. Metronomic CHT (mCHT) is a novel way of administering cancer drugs at doses higher than the MTD with lower side effects. VRL and CAPE are frequently burdened by grade 3-4 neutropenia, neuropathy and gastrointestinal toxicity. We recently published the results of the VICTOR-1 study, demonstrating that metronomic VRL-CAPE combination shows a very low incidence of grade 3-4 toxicities. The phase II VICTOR-2 study was designed aiming to confirm the efficacy and safety data of the previous trial, as well as the impact on QoL, by the use of QLQ-C30 questionnaire. Here we present for the first time data concerning the impact of mCHT on Global QoL (items 29-30) and some of the 3-symptoms scales (items 14-17) during the treatment (baseline, T1=9 weeks, T2=18 weeks, T3=27 weeks). Materials and Methods: The treatment consisted of VRL 40 mg thrice a week + CAPE 500 mg tid, continuously, as 1st or further lines of treatment. Main inclusion criteria were: Measurable or evaluable HER2disease, HR known status. To estimate the effect of mCHT on global QoL and to assess a possible variation in QOL over time, the repeated measure ANOVA was used. Results: From September 2011 to April 2015, 84 pts entered the study; 56 pts (66.7%) completed the first pre-treatment questionnaire, 57.1%, 37.5% and 23.2% of them completed the second, third and fourth questionnaire respectively, according to the above mentioned schedule. Median age was 64 years (37-85). Baseline and after 27 weeks of treatment mean values for Global Health Evaluation (item 29) were 4.9 and 5.0 (F Value=0.9), whereas mean values for Global QoL (item 30) were 5.2 and 5.3 (F Value=0.7), indicating no deterioration of QoL during the treatment. No deterioration on QoL for both 1st and 2nd line pts (baseline: 4.8 vs 5.0; T3: 5.3 vs 4.8) was observed. The vast majority of pts didn’t experience nausea (item 14: 61.5%), vomiting (item 15: 92.3%), constipation (item 16: 92.3%) or diarrhoea (item 17: 69.2%) after 27 weeks of uninterrupted treatment. Conclusion: Metronomic combination of VRL and CAPE does not affect QoL in advanced breast cancer pts and could be a valid option of treatment both as 1-st or further lines of treatment. PO65 PHASE II TRIAL OF METRONOMIC COMBINATION CHEMOTHERAPY WITH ORAL REGIMEN IN HEAVILY PRETREATED METASTATIC BREAST CANCER Prasanna Rammohan Madras Medical College, Medical Oncology, Chennai, Tamilnadu, India Background: Metastatic breast cancer with prior anthracycline and taxane exposure is difficult to treat in low resourceful countries like India. We explored a combination of capecitabine and cyclophosphamide as oral regimen in treatment of MBC as a palliative regimen to assess the response rate, efficacy, toxicity profile (as primary endpoint) and time to tumor progression (as secondary endpoint) in a phase 2 study. Patients and Methods: The study was conducted after approval from institutional ethical committee and in accordance with their regulations. Written informed consent was obtained from all patients prior to screening assessments or enrollment. The median age was 52 years (range 24-69). Performance status at baseline was ECOG 1 in twenty one and 2 in nineteen patients. There were 23 postmenopausal women. Hormone receptor (ER/PR) were positive in 24 patients, (ER and PR) negative in 14 patients and unknown in 2 patients. HER2 status was positive in 10 patients, negative in 24 patients and unknown in 6 patients. Thirty eight patients had been treated with chemotherapy for metastatic disease and anthracycline exposed in 37 and taxane chemotherapy in 39 patients. Fixed doses of capecitabine (1000 mg twice daily) with oral cyclophosphamide (100 mg) were given on days 1-14, in a three weekly schedule. Flat dosing of the oral agents was used as per published data indicating that the clearance of both drugs is independent of body surface area. The treatment was repeated at a 3 week interval until disease progression. Results: A complete response (CR) was obtained in two (5%) of 40 patients, and a partial response in 16 (40%) resulting in overall response rate (ORR) of 45%. Twenty one patients had stable disease (SD) and one had progressive disease (PD).When the treatment responses were analyzed according to hormone receptor status (HR), ORR was 45.8% including two CR and nine PR in 24 patients in HR positives, whereas it was 42.8% including six PR in 14 patients in HR negatives. The ORR in HER2 positive (10 patients) and negative (24 patients) was 20% and 54.1% respectively. The most common (>20% patients) treatment related adverse events were hand-foot syndrome (82.5%), fatigue (57.5%), nausea (47.5%), elevated liver enzymes (35%), vomiting (27.5%), mucositis (27.5%), diarrhea (22.5%), neutropenia (22.5%), anemia (22.5%). Most treatment related adverse events were grade 1/2 in severity. None of the patients had grade 3 adverse event and there were no patients with febrile neutropenia or treatment related deaths. Grade 2 hand-foot syndrome was observed in only 4 patients (12.1%). Conclusion: In resource limited countries like India, metronomic chemotherapy is an attractive option in anthracycline/taxane pretreated advanced breast cancer patients because of low cost, good toleratance, ease of administration and sound therapeutic efficacy. PO66 NEOADJUVANT CHEMOTHERAPY FOR LOCALLY ADVANCED BREAST CANCER; A SOLUTION TO AVOID MASTECTOMY Ahmed Tarek Awad1, Mahmoud Ahmed Elhussini1, Gamal El-Hussieny2, Ahmed M. Basha1 1 Alexandria Faculty of Medicine, Surgical Oncology Unit, Alexandria, Egypt; 2Alexandria Faculty of Medicine, Medical Oncology and Nuclear Medicine, Alexandria, Egypt We represent a series of 326 cases with locally advanced breast cancer in whom the initial decision of surgery was mastectomy or some sort of advanced oncoplastic technique e.g. partial volume replacement by mini LD flap due to the tumor/breast ratio. After excluding any metastatic foci, all patients were offered neoadjuvant chemotherapy. A radioopaque hydro-marker was inserted in the center of the lesion guided by Abstracts / The Breast 24 S3 (2015) S21–S75 ultrasound. Patients were followed up by the surgical team every two cycles. Follow up mammogram was done 3 weeks after the last cycle. (MRI was done in some cases). Patients’ clinical response varied between no clinical response, partial response and complete clinical response. No patients showed progression on chemotherapy in our series. Decision of surgery changed in 85% of the patients either from MRM to level I or level II oncoplastic techniques or from level II to level I oncoplastic technique. In 15% of the patients, the decision did not change either due to inadequate response or due to the patients changed their mind to MRM while receiving neoadjuvant chemotherapy. All patients received postoperative radiotherapy. Follow up ranged from 6-30 months with local recurrence in 3 cases (1 of them in the MRM group) and no distant metastasis up till now. PO67 NEO-ADJUVANT HORMONAL THERAPY FOR LOCALLY ADVANCED BREAST CANCER Lika Katselashvili, Margarita Katcharava, Sophio Kobakhidze Research Institute of Clinical Medicine, Department of Oncology, Tbilisi, Georgia Background: In contrast to neoadjuvant chemotherapy (NAC), neoadjuvant endocrine therapy (NAE) is well tolerated, with very few patients having to discontinue the treatment because of side effects, but it cannot yet be considered similar to chemotherapy, which remains the standard treatment. Methods: We assessed retrospectively 778 patients with primary breast cancer who underwent surgical resection after neo-adjuvant treatment between 2003 and 2013 (a median age 54 years, range 2979 years). 576 patients (74%) had hormone-receptor positive tumor and 98 patients (17%) had HER2 positive tumor. 144 patients with large or locally advanced hormone receptor (+)/HER2 (-) breast cancer received neoadjuvant treatment followed by surgery. 92 patients of them received four cycles (c) of FEC 100 (epirubicin 100 mg/m2 + 5-fluorouracil and cyclophosphamide 500 mg/m2) followed by 4 cycles of docetaxel (75 mg/m2) every 3 weeks for the NAC treatment regimen, while letrozole was administered for 6 months for the postmenopausal 52 patients in the NAE treatment protocol. Results: The hormone status was decreased by both NAC and NAE (from 53% to 30% and from 63% to 11%, respectively). ER (P=0.0327) and PR (P=0.0019) were statistically decreased after NAE compared to NAC group. The response rates by RECIST in the NAC- and NAE-treated patients were 0/32/57/11 and 0/48/46/6 (PD/SD/PR/CR%), respectively. The pathological complete response rate was 11% after NAC and 6% after NAE. Conclusion: Neoadjuvant endocrine therapy is a safe and feasible option. Both of the NAC and NAE treatment protocols caused a decrease in the tumor size. It does not constitute a standard treatment but could have potential for elderly women with operable, hormonosensitive, well differentiated and slowly progressing (SBR I) tumor or for patients with lobular MSBR 1 carcinoma (low chemosensitivity). Patients with an estrogen receptor Allred score of 6 and over are more likely to respond and gain a clinical benefit. PO68 TRIPLE NEGATIVE BREAST CANCER - NEOADJUVANT CHEMOTHERAPY RESPONSE EVALUATION WITH TAXANE/ANTHRACYCLINE PROTOCOL - SINGLE CENTRE 5 YEARS EXPERIENCE Judy Vicente de Paulo, Ana Catarino, Bruno Gonçalves, Mónica Mariano, Sofia Broco, Ana Pais, Isabel Pazos, Pedro Madeira, António Pêgo, Teresa Carvalho, Gabriela Sousa, Helena Gervásio Portuguese Institute of Oncology, Medical Oncology Department, Coimbra, Portugal Introduction: Triple negative breast cancer (TNBC), is one of the most aggressive, therapeutic-resistant and metastatic breast cancer subtypes. S45 Current therapeutic approaches do not distinguish the basal phenotype, however TNBC is a heterogeneous group, with a high rate of complete pathological response to neoadjuvant chemotherapy (NACT), therefore this breast cancer subtype is source of intense debate and therapeutic dilemma. Our institutional protocol consists in 4 cycles of docetaxel and 4 cycles of docetaxel in combination with epirubicin. The aim of our work was to evaluate the results of the application of our Institutional protocol. Methods: We evaluated retrospectively the medical records of patients with locally advanced TNBC with immunohistochemical diagnosis in our Institute that had underwent NACT from 1 January 2009 to 31 December 2012. They were categorized in 3 subgroups according to the degree of pathological response to NACT: If pathological complete response (CPR), residual disease (RD) or “no answer” (considered if there was a reduction of tumor size <50% or progression). We evaluated demographic and clinical characteristics of the population and tumor characteristics (grade, TNM staging and Ki 67). Multivariate statistical analysis, including survival data, was performed using the SPSS v.22 program. Results: A population of 68 female patients with a median age of 51.5 years were analyzed (31-76 years). Globally the population had a mean survival of 58.13 ± 2.82 months (with a mortality rate of 25%). They were divided into 3 subgroups according to the answer to NACT: 38.2% (26 patients) with complete pathologic response (RPC), 25 patients with residual disease (RD) and 17 patients non-responders (NR). The RPC subgroup younger age of the 1st pregnancy, nulliparous 26.9% (vs. 4% (RD) and 11% (NR) and 54 % premenopausal. The RPC subgroup showed grade II/III in 100% CPR subgroup and Ki proliferation index was 67% vs. 55% 70.7 (RD) vs. 54% (NR) and correlated with response. The basal phenotype(CK5/6+) did not correlate with the response to NACT (p=0.479). Comparing survival among subgroups (long rank test) we had statistically significant difference between overall survival rates at 3 years of 92% for RPC subgroup, 88% in RD and 37% in NR (p<0.001). Conclusions: The neoadjuvant chemotherapy protocol using docetaxel / docetaxel+epirubicin showed an complete pathological response rate of 38,2%. The basal phenotype did not correlate with the response pattern. Despite being an retrospective evaluation, we observe the heterogeneity of the TNBC patients, reflecting its therapeutical challenge and the need for further studies in order to subcategorize the TNBC and its targeted therapeutics. PO69 BRACHIAL PLEXOPATHY IN METASTATIC BREAST CANCER: A REVIEW OF PATIENT CHARACTERISTICS AND DIAGNOSIS IN AN IRISH TERTIARY REFERRAL CENTRE Connor O’Leary3, Niamh O’Donoghue3, Emily Harrold3, Claire Brady3, Rachel Collins3, Louise Kelly1, Jennifer Gilmore4, Brian McNamara2, Deirdre O’Mahony3, Seamus O’Reilly3 1 Cork Univeristy Hospital, Department of Surgery, Cork, Ireland; 2Cork Univeristy Hospital, Department of Neurophysiology, Cork, Ireland; 3Cork University Hospital, Department of Medical Oncology, Cork, Ireland; 4Cork University Hospital, Department of Radiation Oncology, Cork, Ireland Background: The brachial plexus is a complex network of nerves formed from the spinal nerves C5 -T1. Brachial plexopathy is a condition characterised by motor and sensory dysfunction affecting these nerves. It is a recognised complication of breast cancer, resulting from metastatic disease or fibrosis following previous regional surgery and/or radiation. Metastatic disease accounts for the majority of cases. Clinical differentiation between the two can be challenging as the physical examination may be restricted by the effects of previous surgery and/ or radiation. In addition, there may in part be an overlap between the symptoms of recurrence and previous treatment. Symptoms indicating the need for imaging include pain, neurological deficit or muscle atrophy. A review of the literature demonstrated the use of multiple forms of imaging with varying degrees of reliability. Methods: Patients with a new diagnosis of brachial plexopathy secondary to metastatic breast cancer were indentified retrospectively S46 Abstracts / The Breast 24 S3 (2015) S21–S75 from local records in a 3 year period. Information was collected on patient age, tumour hormone receptor status and timeframes to diagnosis of brachial plexopathy. The modalities used to confirm a diagnosis of brachial plexopathy were analysed. Results: 7 patients with metastatic breast cancer developed brachial plexopathy in a 3 year period. The median age at presentation was 62 years. 5 patients were found to have hormone receptor positive tumours and 2 patients had hormone insensitive tumours. The time interval to the development of brachial plexopathy in the hormone sensitive group varied from 9-24 years; median of 17 years. The 2 patients with hormone insensitive tumours developed brachial plexopathy within a much shorter timeframe; 2 and 4 years respectively. All patients underwent magnetic resonance imaging (MRI) to visualise the brachial plexus. In 4 patients, this was sufficient to confirm brachial plexus involvement by tumour. 3 of the patients required further investigation due to equivocal findings on MRI. In these cases one or more further modality was required, including positron emission tomography/computed tomography (PET/CT) and nerve conduction studies. Conclusion: Brachial plexopathy is uncommon. It is an important differential diagnosis if new symptoms develop in the upper limb. The condition should be considered even if the history of breast cancer is remote, especially if the patient’s original tumour was hormone sensitive. MRI allows for excellent visualisation of the brachial plexus and improved soft tissue resolution. However, our findings suggest the sensitivity of MRI for this condition is not reliable. MRI combined with PET/CT and/or nerve conduction studies offers higher diagnostic yield and improves specificity. PO70 ESTROGEN RECEPTOR AS A NEGATIVE PREDICTOR OF COMPLETE PATHOLOGICAL RESPONSE IN HER2 POSITIVE LOCALLY ADVANCED BREAST CANCER Rita Canario2, Jorge Cruz2, João Casalta-Lopes1, Bruno Gonçalves2, Mónica Mariano2, Sofia Broco2, Ana Pais2, Isabel Pazos2, Teresa Carvalho2, António Pego2, Pedro Madeira2, Gabriela Sousa2, Helena Gervásio2 1 Centro Hospitalar e Universitário de Coimbra, Radioterapia, Coimbra, Portugal; 2Instituto Português de Oncologia de Coimbra Francisco Gentil, Medical Oncology Department, Coimbra, Portugal Background: The addition of trastuzumab to standard neoadjuvant chemotherapy increases the likelihood of achieving a pathological complete response (pCR) in locally advanced HER2 positive (HER2+) breast cancer. However, controversy remains regarding the subtypes which might benefit the most of this treatment. The aim of our study was to identify predictors of pCR in these groups of patients. Methods: Retrospective analysis of a consecutive series of cases with stage III HER2+ breast cancer treated with neoadjuvant chemotherapy and trastuzumab in a single Portuguese cancer center from June 2008 until December 2014. Data extracted from clinical files included demographics, grade, estrogen receptors (ER), progesterone receptors (PR) and Ki67 status from the original tumour sample. pCR was defined as the absence of invasive or in situ neoplasm in the breast and axilla. Univariate analysis was performed using Mann-Whitney test and multivariate analysis was conducted with logistic regression. Survival was assessed using Kaplan-Meier’s method. Results: A total of 65 individuals were included, median age 52.5 (21-75). Groups were balanced according to the molecular subtype, with 44.6% Her2 pure and 55.4% luminal Her2. The median ER expression was 10% (0-100%), PR 0% (0-100%) and Ki67 35%. The overall pCR rate was 50.8%, significantly higher in the HER2 pure group (72.4% vs 33.3%, p=0.02). ER expression was significantly lower in patients with pCR (median 0% vs. 60%, p=0.002), with no differences in PR or Ki67 expression. ER has maintained prognostic value in multivariate analysis (HR= 1.034, [1.012; 1.057], p=0.003). 5-year progression-free survival (PFS) and overall survival (OS) were 81.3% and 91.2%, respectively. There were no differences in PFS or OS between responders and non-responders. Conclusion: The extent of ER expression constitutes an independent negative predictor for pCR, corresponding in our data to an increase in risk of 3.4% for each unitary increase in percentage of ER expression. This data adds to the growing evidence that ER positive patients might be over treated with chemotherapy. Further studies are needed to establish a new standard of care. PO71 MONITORING THERAPY RESPONSE IN METASTATIC BREAST CANCER USING TUMOUR MARKERS CA15-3 AND TPS Marie Sundquist1, Joakim Nilsson1, Göran Tejler2 1 County Hospitals, Breast Unit Surgery, Kalmar, Sweden; 2County Hospitals, Surgery, Västervik, Sweden Background: Metastatic breast cancer (MBC) is with few exceptions mortal. Many patients can however survive for many years receiving chemotherapy and/or targeted treatments. Response time to a single therapy varies from months to several years. Many treatments are associated with severe side effects. To assess when the disease no longer responds to a particular treatment is important in order to spare the patient unnecessary side effects and be able to switch to a new regimen. Sometimes standard radiology fails in detecting progression. Aim: To assess the role of serum tumour marker CA 15-3 and TPS in monitoring therapy response in MBC. Material and Methods: Approx. 200 pts treated for metastatic breast cancer in Kalmar County 1995 to 2015 were retrospectively investigated. The levels of CA15-3 and TPS were compared to clinical outcome and pathological parameters. Their usefulness was graded according to how well the tumour marker values correlated to clinical status. Information on HER2, steroid receptor status and metastatic site were also collected and used for analysis. Results: Increased levels of CA 15-3 were found in 64 % and of TPS in 63 % of pts at the time of diagnosis of distant metastasis. ER positive tumours had elevated CA 15-3 levels more often than HER2 positive/ER negative tumours. Metastasis in bone and liver were more often associated with elevation of both markers than sole pulmonary metastasis. In 23 % of patients CA15-3 and in 20 % TPS increased or decreased significantly before any change in tumour volume could be detected by standard radiology. Lead time varied from 2 to 11 months. The most increased lead time occurred in hepatic metastasis and in grade 1 and 2 tumours. Conclusion: The serum tumour markers CA15-3 and TPS are useful in monitoring therapy response and disease progression in metastatic breast cancer. PO72 THERAPEUTIC EFFECT PREDICTION BASED ON BIOMARKERS IN THE PLEURAL EFFUSION SPECIMENS OF BREAST CANCER PATIENTS Rikiya Nakamura1, Naohito Yamamoto1, Nobumitu Shiina1, Toshiko Miyaki1, Dai Ikebe2, Makiko Itami2 1 Chiba Cancer Center Hospital, Breast Surgery, Chuou Chiba, Japan; 2Chiba Cancer Center Hospital, Diagnositic Pathology, Chiba, Japan Purpose: The aim of this study was to investigate the possibility of therapeutic effect prediction of endocrine therapy or angiogenesis inhibitors against metastatic breast cancer. Methods: The subjects were 32 cases of advanced or recurrent breast cancer who underwent pleural effusion aspiration suspected carcinomatous pleurisy from February 2014 to April 2015. Cell block section from 32 serous pleural effusion specimens were stained with biomarker such as ER, HER2 and VEGF-A. Expression of these biomarkers investigated the possibility of a predictor for therapeutic effect on endocrine therapy or angiogenesis inhibitor. Results: Twenty eight specimens were confirmed metastatic carcinomas from the breast and one specimen was from the primary lung carcinoma. Three specimens were not confirmed adenocarcinoma Abstracts / The Breast 24 S3 (2015) S21–S75 cells. Loss, increase, or no change in ER staining in primary tumour and pleural effusion specimens was observed in 7, 0 and 21 cases (19 cases were positive, 2 cases were negative), respectively. In two of these 19 cases with ER positive, endocrine therapy was performed. In one of two patients, endocrine therapy achieved long stable disease. However, endocrine therapies were ineffective in all cases of ER loss in pleural effusion specimens. No discrepancy of HER2 expression from primary tumours and pleural effusion specimens were confirmed. Positive staining cell for VEGF-A was found to be present in 75% of pleural effusion specimens (15 of 20 specimens). Eight pleural effusion specimens were not available to VEGF-A staining because of a few carcinoma cells. In 2 of these 15 cases with VEGF-A positive, bevacizumab antiangiogenic agents were administered. Therapeutic effects were confirmed in both patients. However, these agents were administered in 2 of 5 cases with VEGF-A negative and therapeutic effects were confirmed in one patient. Conclusions: The results of this study emphasize the reliability of immunohistochemistry in pleural effusion specimens. Therapeutic effect prediction based on biomarkers in the pleural effusion specimens of breast cancer patients may be promising in loss cases of ER staining. PO73 OUTPATIENT CATUMAXOMAB THERAPY IN METASTATIC BREAST CANCER PATIENTS SUFFERING FROM MALIGNANT EFFUSIONS DUE TO PERITONEAL OR PLEURAL CARCINOMATOSIS: A SINGLE INSTITUTION EXPERIENCE Christian Martin Kurbacher1, Ann Tabea Kurbacher1, Susanne Herz1, Katja Monreal1, Claudia Schweitzer1, Gabriele Kolberg1, Jutta Anna Kurbacher2 1 Gynecologic Center Bonn-Friedensplatz, Gynecologic Oncology Department, Bonn, Germany; 2Gynecologic Center Bonn-Friedensplatz, General Gynecology and Obstetrics, Bonn, Germany Background: Malignant effusions (ME) due to peritoneal (PC) or pleural carcinomatosis (PLC) are frequent complications of advanced metastatic breast cancer (MBC) indicating a worse prognosis. Many patients (pts) wish to spend most of their remaining life span at home. Unfortunately, specific therapeutic options for ME applicable to outpatients are limited so far. The trifunctional antibody catumaxomab (CATU) is approved for the treatment of malignant ascites related to epithelial tumors including MBC. CATU can be safely given to carefully selected outpatients with PC and even PLC due various carcinomas [Kurbacher et al. Proc ESMO 2014; Proc IGCS 2014]. This retrospective analysis summarizes our single institution experience with outpatient CATU therapy (Tx) for PC and PLC in heavily pretreated MBC pts. Methods: From our database, we identified 14 MBC pts (PC, n=7; PLC, n=7) who received outpatient CATU Tx for symptomatic ME. Pts had failed 3-11 prior systemic Tx (median: 5). 10 pts had invasive-lobular carcinoma (all ER+, HER2-), 2 pts had HER2+ invasive-ductal carcinoma, one of them ER+. In PC pts, Tx was planned to be given over a 14 d period at 4 increasing doses (10 g, 20 g, 50 g, 150 g) using an indwelling intraperitoneal (IP) catheder. 6 PCL pts received CATU as a single intrapleural (IPL) instillation at 50 g. In the remainder presenting with a permanent IPL catheder, CATU was administered according to the IP protocol. Standard premedication comprised both non-steroidal pain-killers and antiemetics. Adverse effects were scored according to CTCAE 4.03. The puncture-free survival (PuFS) was calculated from start of CATU until the next puncture, death or loss to follow-up whatever occurred first. Overall survival (OS) was calculated from start from Tx until death from any reason or loss to follow-up. Results: CATU was generally well tolerated. Only one pt with PC required secondary hospitalization due to toxicity (fever, infection). However, only 2 PC pts received all 4 planned IP CATU instillations. The main reason for Tx discontinuation and secondary hospitalization was rapid progression in 4 pts. In contrast, all pts with PLC were treated as planned and none of them required hospitalization following CATU. Secondary puncture due to ME was necessary in 3 pts (PC, n=2; PLC, n=1). One pt with PLC is still alive and free from puncture for 547 days. Pts with PLC S47 compared favorably to PC pts in terms of both PuFS (112 vs 18 d, p=0.06) and OS (118 vs 27 d, p=0.01). Conclusions: Outpatient CATU is safe and feasible in careful1y selected MBC pts with ME due PC or PLC. However, the degree of benefit was remarkably lower in PC compared to PLC pts. IPL could be a valuable and low-toxic option in MBC pts seeking for a specific outpatient Tx for PC. PO74 WHICH IS MORE BENEFICIAL AS AN INITIAL THERAPY FOR THE FIRST DISTANT METASTASIS OF BREAST CANCER: CHEMOTHERAPY OR ENDOCRINE THERAPY FOR HORMONE RECEPTOR-POSITIVE, HUMAN EPIDERMAL GROWTH FACTOR RECEPTOR 2-NEGATIVE BREAST CANCER PATIENTS? A SINGLE-CENTER STUDY Jun Yamamura, Kamigaki Shunji, Tsujie Masaki, Kimura Yutaka, Osato Hiroki Sakai City Hospital, Breast Surgery Department, Sakai City, Japan Background: Patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer may experience distant metastasis after adjuvant therapy. After diagnosis of the first distant metastasis, these patients will receive either chemotherapy (CT) or endocrine therapy (ET). However it is still unclear which therapy has a more beneficial effect in the prognosis. We studied the outcomes and survival of these patients who received either CT or ET after diagnosis of the first distant metastasis. Methods: This is a chart review study of HR+/HER2- breast cancer patients who received the standard of care and subsequently experienced distant metastasis after diagnosis of primary breast cancer between Jan 1999 and Dec 2011 in Sakai City Hospital, Japan. We assessed objective response rate, progression free survival (PFS) and overall survival (OS) after an initial therapy for the first distant metastasis. Results: We studied 92 patients with HR+/HER2- breast cancer who experienced distant metastasis after adjuvant therapy. Of these patients, 32 (35%) patients were treated with CT as an initial treatment for the first distant metastasis, 57 (62%) were treated with ET, and 3 (3%) had no treatment. Disease characteristics were well balanced in between the CT and ET groups. The response rate was 47% in the CT group, and 12% in the ET group (p=0.001). Median PFS was 6.6 months in the CT group, and 8.2 months in the ET group (HR: 0.919, 95% CI 0.501-1.686, p=0.784). Median OS was 2.1 years in the CT group, and 2.3 years in the ET group (HR: 0.676, 95% CI 0.389-1.744, p=0.160). Conclusion: CT might have a better response as an initial treatment for distant metastasis. However our retrospective study could not provide clarification verifying which initial therapy was more beneficial for HR+/HER2- patients. It would have been better to administer more moderate treatments appropriate for the patients regardless of CT or ET. If future efforts were conducted with a larger spectrum of patients and treatment analysis, results might be more conclusive. PO75 THE CTPET/MDST RATIO: AN INTRODUCTION OF A QUANTITATIVE MEASURE OF EFFECTIVE PALLIATIVE ENDOCRINE THERAPY IN METASTATIC BREAST CANCER Uwe Güth2,3,6, Andreas Schötzau4, Dorothy Huang6, Seraina Schmid5,1 1 Breast Center St. Gallen, Grabs, Switzerland; 2Cantonal Hospital Winterthur, Breast center “Senosuisse”, Winterthur, Switzerland; 3Cantonal Hospital Winterthur, Obstetrics & Gynecology, Winterthur, Switzerland; 4 Eudox Institute for Biomathematics, c/o, Basel, Switzerland; 5Spital Grabs, Gynecology & Obstetrics, Grabs, Switzerland; 6University Hospital Basel, Gynecology & Obstetrics, Basel, Switzerland Introduction: This study provides real-world clinical evidence regarding endocrine therapy (ET) in the overall course of metastatic disease in hormone receptor (HR)-positive breast cancer (BC). In this study, we introduced a quantitative measure of how long the metastatic S48 Abstracts / The Breast 24 S3 (2015) S21–S75 disease course can be controlled by endocrine agents in relation to the overall palliative survival time. Methods: From a non-selected cohort of women who were treated at the University Women’s Hospital Basel for newly diagnosed BC in a 20year period (1990-2009), we analyzed 205 consecutive patients who had or developed distant metastatic HR-positive disease over a 15-year period (1997-2011). In order to give a quantitative description of the overall duration of ET in relation to palliative survival time, we evaluated the “cumulative time of palliative endocrine therapy” (CTPET). When patients received several lines of ET, the duration of each line was added to the CTPET. In a further step, we calculated the ratio between CTPET and metastatic disease survival time (MDS). This ratio describes the percentage of the patient’s survival time after diagnosis of metastatic disease during which endocrine therapy had been administered as the only systemic therapy. The CTPET/MDS ratio was only analyzed in patients who had a survival time of at least nine months (n=145, 87.9%). Results: 165 patients (80.5%) received ET as a part of palliative care. The median number of therapy lines was two (range: 1-7). The median duration was 18 months (range 0.5-133 months). The median metastatic disease survival (MDS) was 34 months (range: 1-137 months). The median CTPET/MDS ratio was 70.6 (range 2.1-100). Patients who were therapy-naïve had a higher ratio (p=0.002) than those who were not. Discussion: ET is widely applied in palliative cases of HR-positive BC. Only in approximately 20% of cases was this option not carried out. In particular, patients who were ET-naïve responded well to palliative ET. If metastatic BC could be stabilized in such a way that the palliative situation could be viewed as a chronic disease process, then effective ET formed an important cornerstone in their management; in general, the longer disease progression was suppressed by ET, the longer the MDS. With this study, we introduced the CTPET/MDS ratio into the literature. In our opinion, this is a promising quantitative measure of how long the metastatic disease course can be controlled by agents which offer, compared to chemotherapy, many advantages (safety, efficacy, convenience, favorable side-effect profile). After excluding those patients with rapidly progressive courses, our data showed that the disease was controlled and stabilized for about 70% of the entire palliative course with ET alone. PO76 THERAPEUTIC STRATEGY FOR RECURRENT HER2-POSITIVE BREAST CANCER PATIENTS Akimasa Nishimura, Takashi Nishi, Akiko Igawa, Kensuke Okano, Eri Yoshida, Kenichi Hakamada Hirosaki University, Surgery, Hirosaki, Japan Introduction: In 2014, the American Society of Clinical Oncology published their guideline for systemic therapy for patients with advanced human epidermal growth factor receptor 2(HER2)–positive breast cancer. They recommend trastuzumab, pertuzumab and taxane for first-line treatment and T-DM1 for second-line treatment. They described that clinicians might offer first-line endocrine therapy alone in special circumstances. In this study, we clarify what is the best indication for HER2-positive and estrogen receptor-positive patients to receive endocrine therapy as the first-line therapy. Patients and Methods: We performed an operation on 732 patients for breast carcinomas at our hospital from January 2002 to December 2013. We reviewed their medical records and included recurrent HER2positive patients into this study. We examined clinicopathological factors of the patients such as ER status, the first recurrent site and the number of involved organs. We calculated survival rates using KaplanMeier method and compared the differences using log-rank tests. Result: 14 HER2-positive breast carcinoma patients had a relapse. The median survival time after the relapse was 34 months. The survival time of the patients with one organ involved and with two or more organs involved was not reached and15 months, respectively. The patients with one organ involved survived significantly longer than the others (p=0.003). As the first-line therapy, 7 patients received an anti-HER2 targeted drug and 3 patients received no anti-HER2 drug. The time to receive the first-line therapy was 8.4 (range: 1–15) months for patients with an anti-HER2 drug, and 16.0 (range: 2–30) months, respectively. Conclusion: We concluded that we could offer endocrine therapy as the first-line therapy to HER2-positive and estrogen receptor-positive patients with one organ involvement. P077 LOCALLY ADVANCED BREAST CANCER IN YOUNG FEMALE. THE EGYPTIAN NATIONAL CANCER INSTITUTE EXPERIENCE Amany Helal2, Amira Darwish2, Nelly Alieldin3, Lydia Soliaman1 1 Faculty of Medicine, Beni Suef University, Medical Oncology, Beni Suef, Egypt; 2National Cancer Institute, Medical Oncology, Cairo, Egypt; 3 National Cancer Institute, Biostatistics & Epidemiology, Cairo, Egypt Background: The objective of this study is to analyze the clinicopathologic characteristics, treatment and outcome of young women below 35 years old with locally advanced breast cancer (LABC) who were treated at national cancer institute, Cairo University. Patients and Methods: A retrospective analysis was conducted based on medical records from consecutive young females patients below 35 years old with (LABC) treated during 2008-2010 at NCI. The patients’ records were identified and their pathological and clinical data were retrieved. Results: Of the 458 young patients diagnosed with breast cancer, 160 patients (35%) presented with LABC. Patient’s median age was 32 years. Only 9.4 % of patients were single, 15.6% were nulliparous, while 46.8% had ≥ 3 children. Oral contraception was used by 9%. Median tumor size at diagnosis was 4.5 cm (range: 1-15cm). Histology showed invasive duct carcinoma in 85% and invasive lobular carcinoma in 4%. Estrogen receptors were positive in 74.8% and progesterone receptors were positive in 67.4%. In 26.3% HER2 was over-expressed. Thirty percent of the patients received preoperative chemotherapy (CT). Primary CT was anthracycline- based in 89.6% and anthracycline followed by taxanes in 10.4%, 17.2% underwent conservative breast surgery, while 87% had modified radical mastectomy. Ninety percent of patients received adjuvant CT, 91.8% received adjuvant radiotherapy and and patients with hormone receptors positive received adjuvant hormonal therapy. At a median follow-up of 25 months (range: 1-70), 56.9% of the patients had no evidence of disease. Two patients (1.25%) died with no evidence of recurrence. In 41.9% of patients the tumor recurred, 4.4% of them had only local recurrence, 35% had distant metastasis and 2.5% had both local and distant metastasis. Conclusion: In our institute almost 1/3 of women under 35 years with breast cancer had locally advanced disease in their first presentation. Local recurrence rate was low (6.9%) however 37.5% of patients developed distant metastases. So further studies are recommended to increase awareness to early tumor detection and to optimize systemic treatment strategies. PO78 ELDERLY WOMEN AND BREAST CANCER: CHARACTERIZATION OF TREATMENT PRACTICES Diana Freitas, Ana Marques, Joana Cunha, Luísa Queiróz, Catarina Portela, Rui Nabiço Hospital de Braga, Medical Oncology Department, Braga, Portugal Introduction: In Europe, incidence for women 70 years or older varied from 100 to 350/100 000/year. In a general, elderly women with breast cancer are considered underdiagnosed and undertreated, with adversely affects in their overall survival. Objective: Characterize therapeutic options in elderly patients and understand the choices in those patients. Material and Methods: Retrospective study of 25 women with the diagnostic of locally advanced breast cancer (LABC) with ≥ 70 years old in Braga Hospital within the years 2007-2008. Abstracts / The Breast 24 S3 (2015) S21–S75 Results: The average age was 77 years old (70-88) Regarding histology type, 88% (N=22) were ductal carcinoma and 4% (N=1) with lobular carcinoma, lobular and ductal carcinoma and a papillary carcinoma, respectively. Most patients had a tumor grade 2 (60%, N=15) and 20% grade 1 (N=5). Median tumor size with 12 mm (25-100). Fifty-two percent (N=13) belongs to stage II. About 92% expressed estrogens receptors and 80% progesterone receptors. Her2 was positive in eleven patients (44%) and unknown/doubtful in 3 patients (12%). The primary treatment was surgery in 80% (N=20), chemotherapy (CT) in 12% (N=3) and hormone therapy (HT) in 8% (N=2). Regarding surgery, mastectomy with axillary lymph node dissection was done in 72% (N=18), mastectomy with sentinel lymph node biopsy (SLNB) in 16% (N=4), 8% (N=2) simple mastectomy and 4% (N=1) lumpectomy with SLNB. Adjuvant treatment such CT, radiotherapy (RT) or HT were done in 36% (N=9), 68% (N=17) and 88% (N=22), respectively. Relatively to CT, in 24% (N=6) was use CMF (cyclophosphamide, methotrexate fluorouracil), FEC in 4% (N=1), FEC-T (N=2, 8%), AC (4%, N=1), AC-T (4%, N=1). When we divided patients in <80 years (N=13) and ≥80 years (N=12), the analysis in terms of primary treatment reveals that patients ≥80 years were treated only with surgery (83%) or HT (16.7%). In the total 11 patients that received CT, only one patient had more than 80 years. RT was use in 76.9% (N=10) in <80 years versus 58.3% in ≥80 years. The major reasons to choose not to do standard treatment, when described, were performance status and comorbidities, mostly cardiac pathology. In the total of 25 patients, 8% (N=2) are dead without disease evidence and 12% (N=3) are dead with disease evidence. Median overall survival was 70 months and the 5 years survival rates was 87.05%. Conclusion: Studies shows that elderly patients do not receive the standard treatment. Our study corroborates that treatments like CT or RT is less used in older patients. Physiological age, estimated life expectancy, risks, benefits, treatment tolerance, patient preference and potential barriers should be considered in management for older individuals. Geriatric assessment is crucial to try to make the best decision. PO79 ELDERLY METASTATIC BREAST CANCER AT DIAGNOSIS: A SINGLE INSTITUTION EXPERIENCE Amanda Nobre Carvalho, Beatriz Gosalbez, Carlos Reis, Irene Furtado Algarve Hospital Centre, Medical Oncology Department, Faro, Portugal Background: One to five percent of women with breast cancer have metastatic disease at diagnosis. In elderly population the goals of treatment are to reduce symptoms when present and to provide the patient with the best quality of life for as long as possible. Methods: An observational and retrospective study of metastatic breast cancer at presentation in women aged 65 years and older diagnosed from January 2008 to December 2014. Demographic data, tumor characteristics, treatment options and overall survival were analyzed using SPSS® 2.20 (Statistical Package for the Social Sciences, SPSS Inc., Chicago, IL). Results: In the past seven years a total of 487 cases of breast cancer in elderly patients were diagnosed, 25 women of them (5.1%) had metastases at presentation (stage IV). Median age was 76 years (range 63 to 83). Hormonal receptors (ER and/or PR) were positive in 19 (76%) and HER2 was positive in 6 (24%); there were 3 “triple negative” tumors (12%). The most frequent organs for metastases were the bone in 13 patients (50,2%) and the liver in 9 (36%). Metastases in multiple organs were found in 8 patients (32%). The performance status was 2 in 18 patients (72%). Treatment options were hormonal therapy in 17 (68.0%); chemotherapy in 7 (28%); radiotherapy in 7 (28%) - mainly for bone metastases; bifosfanates in 11 (44%) patients. Median overall survival was 22.1 months [95% CI (7.5-36.7)]. Conclusion: The treatment of metastatic breast cancer in elderly population is a challenge because the lack of evidence on this setting. The hormonal therapy is a good option with evident clinical benefits. In our population the median overall survival not reached with the hormonal treatment, for those with hormonal receptors positive and median follow-up time was 20,1 months (range 4.2 to 62.4). S49 PO80 ELEVATED NEUTROPHIL TO LYMPHOCYTE RATIO PREDICTS WORSE SURVIVAL OUTCOME AFTER RECURRENCE FOR PATIENTS WITH TRIPLE NEGATIVE BREAST CANCER Toshiaki Iwase1, Takafumi Sangai1, Masahiro Sakakibara1, Takeshi Nagashima1, Shouko Hayama1, Masaru Miyazaki2 1 Chiba University Hospital, Breast and Thyroid Surgery, Chiba City, Chiba, Japan; 2Chiba University Hospital, General Surgery, Chiba City, Chiba, Japan Background: Cancer induced chronic inflammation shortens overall survival for metastatic breast cancer patients by reducing muscle mass and prompting cachexia. Recent studies show that obesity plays a major role in causing chronic inflammation by producing several inflammatory cytokines. On the other hand, there is limited research focusing on the effect of obesity in recurrent breast cancer treatments. Since a long time ago, neutrophil to lymphocyte ratio (N/L ratio) has been utilized for evaluating inflammation and many reports confirmed that substitution value. Therefore, we set out to clarify the impact of obesity related inflammation by N/L ratio in recurrent breast cancer treatment. Patients and Methods: From January 2005 to December 2014, 93 patients with recurrent breast cancer after surgery were included. World Health Organization body mass index (BMI) classification was used for evaluating the degree of obesity (underweight: <18.5 kg/m2, normal: 18.5 ≤ BMI <25 kg/m2, overweight: 25 ≤ BMI < 30 kg/m2, obese: ≥30 kg/m2). Muscle mass amount was also analyzed. Lumber skeletal muscle index (LSMI, cm2/m2) was generated by standardizing each patient’s muscle area (m2) at the third lumber vertebrae level in axial CT data. Less than 50m2 in LSMI was defined as pre-sarcopenia. N/L ratio was calculated from the laboratory data, and more than 3.0 was defined as high N/L group. Overall survival after recurrence (OS) was set as the endpoint of this present study. Results: Patient background showed there were 20 overweight patients and 2 obese patients. Twenty-eight cases had pre-sarcopenia. In univariate analysis, N/L ratio had no significant differences among BMI categories. However, triple negative (TN) type demonstrated significantly high N/L ratio compared to other subtypes (p < 0.05). LMSI had significant negative correlation to N/L ratio (p < 0.05). In survival analysis, overweight/obese group showed significantly shorter OS (p < 0.05). High N/L ratio group also showed similar results (p < 0.05). When stratified by intrinsic subtypes, TN type demonstrated significantly shorter OS (p < 0.05). Additionally, overweight/obese groups in TN type had notably shorter OS (p < 0.05). In multivariate analysis, subtype and N/L ratio were independently related to OS (Hazard ratio: 3.3 in TN type, 2.9 in High NL ratio group). Conclusion: Present study did not show any significant relationship between obesity and chronic inflammation in recurrent breast cancer setting. On the contrary, intrinsic subtype was significantly related to inflammation, leading to pre-sarcopenia and worse OS. Whether obesity promotes inflammation in TN type needs more investigation. PO81 COMPLIANCE AND PERSISTENCE TO PALLIATIVE ENDOCRINE THERAPY IN METASTATIC BREAST CANCER Uwe Güth2,3, Andreas Schötzau4, Dorothy Huang6, Seraina Schmid5,1 1 Breast Center St. Gallen, Spital Grabs, Grabs, Switzerland; 2Cantonal Hospital Winterthur, Obstetrics & Gynecology, Winterthur, Switzerland; 3 Cantonal Hospital Winterthur, Breast Center “Senosuisse”, Winterthur, Switzerland; 4Eudox Institute for Biomathematics, c/o, Basel, Switzerland; 5 Spital Grabs, Gynecology & Obstetrics, Grabs, Switzerland; 6University Hospital Basel, Gynecology & Obstetrics, Basel, Switzerland Introduction: This study provides real-world clinical evidence regarding compliance and persistence to palliative endocrine therapy (ET) in breast cancer (BC) patients. S50 Abstracts / The Breast 24 S3 (2015) S21–S75 Methods: From a non-selected cohort of women who were treated at the University Women’s Hospital Basel for newly diagnosed BC in a 20year period (1990-2009), we analyzed 205 consecutive patients who had or developed distant metastatic HR-positive disease over a 15-year period (1997-2011). We defined “compliance” as the readiness to accept a proposed drug; in other words, to accept starting ET. Non-persistence to therapy is not simply the act of stopping medication, but rather the manifestation of an intentional behavior. Thus, situations where the discontinuation of therapy was not chosen but was mandatory, in particular when patients had to stop therapy due to disease progression, were not defined as being “non-persistent”. Results: From the entire study cohort, 165 patients (80.5%) received ET as a part of palliative care. Of the 169 cases in which ET was clearly recommended, only three patients rejected the therapy, which corresponded to a non-compliance rate of 1.8%. Out of the 165 women who started ET, seven (4.3%) were non-persistent to the initiated therapy and consciously stopped a still effective, ongoing therapy; out of these, four (67.1%) did so due to therapy-related side effects and three (42.9%) due to reasons such as lack of motivation/faith in therapy. Of the patients who started palliative ET, the therapy-related side effects were so severe in 14 patients (8.5%) that a modification of the therapy was indicated. From these, one drug switch was made in 11 cases (78.6%), two medication changes were necessary in 2 cases (14.3%) and the medication was changed three times in one case (7.1%). Out of the 14 cases in which a drug switch was made, 11 patients (78.6%) continued ET after therapy modification. Discussion: Only very few patients were non-persistent to the initiated ET and consciously stopped a still effective, ongoing ET. Low nonpersistence data suggests that most patients knew very well that ET in the palliative situation could prolong survival with considerably little effort on their part and with, compared to chemotherapy, a lower rate of side effects. These side effects might not be tolerated in the adjuvant situation to a certain extent (there are considerably higher nonpersistence rates reported in the literature in the adjuvant situation), but may be well accepted in the palliative situation. The patients were probably also well informed about the limited number of therapy lines available to them and were thus less willing to try to change therapy due to therapy-related side effects. patients was 6.24 months with 42 patients (24.6%) on taxane-based and 39 patients (22.8%) on antracycline-based regimens, and of hormonal therapy - 14.25 months with most frequent regimen of aromatase inhibitor: 66 subjects (38.6%). Conclusions: This study provides unique real life data on current clinical management and outcomes in MBC patients in Bulgaria. PO83 CURRENT STATUS OF THE MANAGEMENT OF ADVANCED RH+/HER2BREAST CANCER IN MOROCCO Errihani Hassan2, Taleb Amina1, Mrabti Hind2, Elghissassi Ibrahim2, Boutayeb Saber2, Narjiss Berrada2 1 Ibn Rochd, Dept. of Oncology, Casablanca, Morocco; 2National Institute of Oncology, Medical Oncology Department, Rabat, Morocco PO82 Background: The management of breast cancer in Morocco is done by different specialists; medical oncologist, radiation oncologist and sometimes by surgeon. The provision of care is not uniform and depends on the physicians and sectors ( public versus private). Interdisciplinary meeting are not well implemented in all cancer centers and local recommendations are absent. The purpose of this work was to describe the current situation in the management of advanced RH+/her2- breast cancer in Morocco. Materials and Methods: We realized a survey among 50 oncologists (medical and radiation oncologist) working in different centers about their management of RH+/Her2- advanced breast cancers. Results: The hormone receptor positivity threshold was 1% for 66% of physicians. 28 % of them define the secondary hormone resistance as recommended by the ABC consensus. The definition of visceral crisis is not clear for 88.5%. 52% define it as the association of visceral metastases + clinical signs. 28% as visceral metastases + biological abnormalities. Percentage of patients who are put on hormone therapy as a first line therapy are 10% for 58% of oncologist and 50% for 27%. A second line endocrine therapy is done by 78% of physicians. The presence of visceral metastases (independently of visceral crisis) has an impact on the physician’s decisions on 73% of cases. After chemotherapy, 69% of oncologists prescribe maintenance endocrine therapy. ABC consensus is the second recommendation used by Moroccans oncologist. EPIDEMIOLOGY AND THERAPEUTIC MANAGEMENT OF METASTATIC BREAST CANCER IN BULGARIA: A RETROSPECTIVE COHORT STUDY PR84 Konstanta Timcheva2, Margarita Taushanova2, Krassimir Koynov1 1Multiprofile Hospital for Active Treatment “Serdika”, Medical Oncology, Sofia, Bulgaria; 2Women’s Health Hospital “Nadezhda”, Medical Oncology Clinic, Sofia, Bulgaria Background: There are no established standards of care as well as scarce insightful real life data about the current management of metastatic breast cancer (MBC). Objectives: The primary objective of this multi-center, retrospective, non-interventional study was to estimate the incidence rate of disease progression in a cohort of patients newly diagnosed with MBC, either de novo or having progressed from a non-metastatic stage. Clinical management and progression free survival (PFS) rates at 12 and 18 months after diagnosis of MBC were key secondary objectives. Methods: Disease progression incidence rate was expressed as the number of progression events (documented progression or death due to any cause after diagnosis of MBC) on a per patient-year-basis. PFS rates at 12 and 18 months were calculated with the Kaplan-Meier method. Descriptive analysis was used for clinical management patterns after MBC diagnosis. Results: 171 patients were enrolled. The incidence rate of disease progression per patient-year in 158 patients with full data was 0.477 [95% confidence interval (0.387, 0.582)]. The estimated probability of PFS was 0.6114 [95% confidence interval (0.5279, 0.6847)] at 12 month and 0.4558 [95% confidence interval (0.3732, 0.5346)] at 18 month after diagnosis of MBC. The mean duration of chemotherapy for all enrolled FULVESTRANT COMBINED WITH CAPECITABINE MAY BE EFFECTIVE AND WELL TOLERATED FOR PATIENTS WITH ESTROGEN RECEPTOR-POSITIVE, HER2-NEGATIVE METASTATIC BREAST CANCER Maki Nakai Nippon Medical School Hospital, Breast Oncology Dpt., Bunkyouku, Japan Endocrine therapy concomitant use of chemotherapy remains to be standardized in breast cancer patients; in a phase II study, however, an efficacy and low toxicity of safulvestrant combined with capecitabine was shown in estrogen receptor (ER)-positive, HER2-negative metastatic breast cancer (MBC). In 2013, we began to treat patients with ER-positive, HER2-negative MBC in our clinical practice, with high dose (500 mg) fulvestrant combined with capecitabine as one of treatment options. In this study we retrospectively analyzed the efficacy and toxicity of this treatment in MBC patients. A consecutive series of 5 patients with ERpositive, HER2-negative MBC treated with fulvestrant combined with capecitabine simultaneously were analyzed. Median age at an initial diagnosis of MBC was 61 years (range, 50 to 68 years). Performance status (PS) 0 was observed in 3 patients and PS 1 in 2 patients. MBC was diagnosed at 49, 80, 92, and 119 months after surgery in 4 patients and it was diagnosed at presentation (stage IV) in 1 patient. MBC was diagnosed at 49, 80, 92, and 119 months after surgery in 4 patients and it was diagnosed at presentation (stage IV) in 1 patient. Patients received 500 mg fulvestrant on days 1, 15, and 29, and then every 28 days thereafter. Patients simultaneously received capecitabine, 1800 mg or Abstracts / The Breast 24 S3 (2015) S21–S75 2400 mg per day on days 1 to 21 every 28 days. Fulvestrant combined with capecitabine was administered as 2nd, 3rd, or 4th regimen of MBC following progression of fulvestrant monotherapy in 3 patients, and it was administered as 2nd or 4th regimen following progression of other regimens without fulvestrant in 2 patients. Fulvestrant combined with capecitabine was administered as 2nd, 3rd, or 4th regimen of MBC following progression of fulvestrant monotherapy in 3 patients, and administered as 2nd or 4th regimen following progression of other regimens without fulvestrant in 2 patients. Chemotherapy was an initial treatment in 1 patient with stage IV disease. Best responses were as follows. Partial response (PR) and stable disease (SD) were observed in 3 and 2 patients, respectively. Time to progression (TTP) was 15 months in 1 patient; however, 4 were censored in TTP analysis (3, 4, 7, and 13 months). No grade 3 or 4 adverse events were observed in fulvestrant combined with capecitabine regimen. Grade 2 palmarplantar erythrodysesthesia was observed in 2 patients, in one of whom the dose of capecitabine was reduced. No other grade 2 adverse events were observed. Our retrospective study indicates that fulvestrant combined with capecitabine is effective and well tolerated for patients with ER-positive, HER2-negative MBC. Further analyses will be needed in a prospective study setting. PR85 OUR TREATMENT STRATEGY FOR PATIENTS WITH HORMONE-RECEPTOR-POSITIVE, HER2-POSITIVE METASTATIC BREAST CANCER Haruo Tanaka1, Shuyo Umeda1, Souichiro Murakami1, Mikimasa Ishikawa1, Kimiharu Tanaka2, Akihiko Uchiyama1 1 JCHO Kyushu Hospital, Surgery, Kitakyushu, Fukuoka, Japan; 2 Saiwaimaigeka Clinic, Surgery, Kitakyushu, Fukuoka, Japan Goals: TAndem Study and eLEcTRA trial showed that the combination of aromatase inhibitors (AIs) and trastuzumab is a safe and effective treatment option for patients with epidermal growth factor receptor 2 (HER2) and hormone receptor (HR) positive metastatic breast cancer (MBC). Our goal is to re-validate these evidence, such as the safeness and efficacy of trastuzumab and AIs combination therapy for Her2 and HR positive MBC patients. Methods: We experienced 7 patients with HER2 and HR positive postmenopausal MBC patients. Four patients were treated with trastuzumab and AIs, and three patients were treated with trastuzumab and chemotherapy. No patients were treated without trastuzumab. Our indication of the combination therapy (trastuzumab and AIs) is restricted only non-life threatening MBC. Results: Patients treated with trastuzumab and AIs, three patients had clinical benefit. Only one patient with liver metastasis had no response and moved into chemotherapy plus trastuzumab. Especially, two patients with only lymph nodes metastasis showed complete response (one pathlogical complete response and one clinical complete response for three years) with trastuzumab and AIs. Adverse events including congestive heart failure are not observed in these patients. Conclusion: The combination therapy of AI and trastuzumab is a safe and effective treatment for patients with HER2 positive and HR positive MBC. Especially for non-life threatening metastatic site (lymph node, bone), this therapy is more sustainable for long periods without severe side effect than trastuzumab plus chemotherapy. S51 PR86 RETROSPECTIVE STUDY OF EVEROLIMUS WITH FULVESTRANT IN POSTMENOPAUSAL WOMEN WITH HORMONE RECEPTOR-POSITIVE METASTATIC BREAST CANCER PRETREATED WITH AROMATASE INHIBITORS(AI’S) AND SELECTIVE ESTROGEN MODIFIERS Leen Vanacker Universitair Ziekenhuis Brussel, Medical Oncology Dpt., Brussels, Belgium We conducted a retrospective analysis of postmenopausal women with hormone receptor-positive metastatic breast cancer pretreated with AI’s and fulvestrant. We aimed to look at the response rate, clinical benefit rate and safety profile. The patients were administered monthly fulvestrant 500 mg I.M. and oral everolimus 7.5 mg daily. Results: Eight women with hormone receptor positive HER2 negative metastatic breast cancer were retrospectively included. The median age was 54.5 years old (range 4770). All tumors were ER-positive and the majority was PR-positive (75%). Three patients (37.5%) were diagnosed with de novo metastatic disease. The most common sites of metastases were bone and liver with 75% of patients having three or more sites of metastatic disease. All patients were heavily pretreated with endocrine therapy and received previously a SERM, AI and fulvestrant. Five patients (62.5%) had a partial response and 2 patients (25%) had stable disease with a clinical benefit rate of 57.1%. One patient was not evaluable for response due to rapidly progressive disease. The median time to progression was 30 weeks and the median overall survival was 22.5 months. All patients experienced some toxicity. The most common adverse events were edema (75%), mucositis (50%), diarrhea (50%), cough (50%) and metabolic changes (hyperglycemia (87.5%), hypertriglyceridemia (65.2%), and hypercholesterolemia (50%). Most common side effects were grade 1 or 2 and reversible with infrequent need for everolimus dose reduction. Four patients (50%) required dose reduction of everolimus due to edema, liver toxicity or infection. On the reduced dose there was an amelioration of the side effects. Most reasons for discontinuation were disease progression (71.5%) and drug related toxicity (28.6%). In conclusion, our findings suggest that the combination of everolimus with fulvestrant in postmenopausal women with hormone receptor-positive metastatic disease, who progressed on prior AI’s and fulvestrant, is an efficacious treatment option with an acceptable toxicity profile. Further randomized studies are needed to confirm these findings. PR87 COMBINATION THERAPY PERUZUMAB, TRASTUZUMAB AND DOCETAXEL FOR ADVANCED OR RECURRENT BREAST CANCER PATIENTS IN THE LATE LINE Takashi Morimoto, Shintaro Michishita Yao Municipal Hospital, Breast Surgery Dept., Yao, Osaka, Japan Purpose: Combination therapy pertuzumab(PER), trastuzumab(HER) and docetaxel (DTX) is the standard regimen for advanced or recurrent breast cancer patients in the first line. The purpose of this study is to evaluate the effect of this combination therapy as the late line for advanced or recurrent breast cancer patients. Patients and Methods: Seven patients were evaluated (age 47-70). Three cases were administered as third line and others were as four or more lines. Six cases had pulmonary and/or liver metastasis and one had the distant LN metastasis. Five cases were HER2 type and two were luminal HER2 type. Results: The mean duration of administrated is 5.9 months (2-13 mo. Median 4 mo.). Three cases are still administrating and two of them were maintaining by PER and HER. Response rate is 43% (3PR, 1NC, 1PD and 2NE). The most of side effects were caused by DTX (alopecia, neuropathy and dysgeusia). All patients are alive at that time. Discussion: This regimen showed relative high response rate and long term administration as the third or more line. This combination therapy may be useful for HER2 positive advanced or recurrent breast cancer patients as the late line. S52 Abstracts / The Breast 24 S3 (2015) S21–S75 PR88 EXPERIENCE WITH ERIBULIN IN THE TREATMENT OF METASTATIC BREAST CANCER IN TATARSTAN REPUBLIC CLINICAL ONCOLOGICAL DISPENSARY Alfyia Khasanova1, Guzel Mukhametshina1, Sufyia Safina2 1 Tatarstan Republic Clinical Oncological Dispensary, Chemotherapy dpt #1, Kazan, Russian Federation; 2Tatarstan Republic Clinical Oncological Dispensary, Chemotherapy dpt #3, Kazan, Russian Federation Background: Disseminated breast cancer is chronic systemic disease that requires long-term personalized drug therapy with rapidly alternating regimens. Eribulin routinely practiced in Russia since 2013 can increase the life expectancy of such patients, effectively blocked tumor growth. Material and Methods: 7 patients received eribulin from March 2014 to March 2015. The average age was 53 years old. All patients had already got from 1 to 3 lines of chemotherapy due to metastatic disease. Three patients received eribulin as second-line therapy, another three - in the third line therapy, one patient - in the fourth line of therapy. Three patients had hormone-positive breast cancer, 3 patients were HER2 neu positive, 4 patients had HER2-negative tumors (two of them were triple-negative). All patients previously received anthracyclines and taxanes. Patients received eribulin in monotherapy, 6 patients received a dose of eribulin mezylate 1.4 mg/m 2, and 1 patient initially received a reduced dose of the drug in 1.1 mg/m2 due to increased liver enzymes after previous treatment. Eribulin was administered in the 1st and 8th days of a 21 day cycle IV bolus. Evaluation of the effect was based on physical examination and CT scan every 6-8 weeks. All patients were treated until disease progression. Results: Six patients have visceral metastases, one patient had local recurrence in the area of operation and remote lymph nodes. Liver lesions were in 4 patients, lung lesions - in three patients, in three patients there were bone metastases. Most patients had multiple combined lesions, only 1 patient had isolated lung metastases. One patient had combined lung, liver and brain metastases. All patients received 3 to 14 cycles of eribulin, the median duration of therapy was 16 weeks. Survival to progression ranged from 3 to 10 months, the median progression-free survival was 5.5 months. This 10-month disease-free period was observed in patients who received eribulin as chemotherapy 4th line (thus the maximal duration of effect of other chemotherapy drugs in earlier lines of treatment should not exceed 6 months). In 2 patients, including patient with brain metastases, achieved stable disease, treatment is ongoing. Most common adverse events were hematological and hepatological: leukopenia, neutropenia, increased ALT, AST, headache. Maximal toxicity was grade 2 (according to the criteria STCAE 4.0). No serious adverse effects during treatment with eribulin were observed. Conclusions: Eribulin provides a significant effect in patients with metastatic breast cancer when used in the 2nd and the following lines of chemotherapy. Side effects of therapy usually do not lead to drug discontinuation and easily stopped, without compromising the quality of life of patients. PR89 INFLAMMATORY BREAST CANCER – DOES DERMAL LYMPHATIC INVASION INFLUENCE THE OUTCOME? Daniela Kolarevic, Zorica Tomasevic Institute for Oncology and Radiology of Serbia (IORS), Daily Hospital for Chemotherapy, Belgrade, Serbia Background: Inflammatory breast cancer (IBC) is one of the most aggressive forms of locally advanced breast cancer (LABC). Its typical clinical presentation is an inflammation of the breast skin, not due to true physiological inflammatory response but rather as a consequence of the dermal lymph vessels of the breast being blocked by cancer cells forming tumour emboli. Even with an adequate number of tissue-block samples and multiple sections (≥10), dermal lymphatic invasion (DLI) is evident in up to 80 % of patients with true primary IBC. However, the diagnosis of IBC is still made primarily on clinical grounds because the absence of DLI does not exclude the diagnosis. The aim of this retrospective analysis is to evaluate whether the presence of dermal lymphatic invasion influences the response to induction chemotherapy (iCT), time to progression (TTP) and overall survival (OS). Methods: We evaluated 63 medical records of patients with IBC, stage III, registered at the Institute for Oncology and Radiology of Serbia, in a period between January 2008 and December 2010. Results: Thirty two patients (51%) had a pathological confirmation of DLI by multiple-site skin biopsy. No significant difference has been observed between DLI positive (DLI+) and DLI negative (DLI-) groups in terms of age, menopausal status, BMI, pathohistological tumour type or tumour size. Evaluation after 4 cycles of anthracycline-based iCT showed that partial response (PR) or stable disease (SD) have been achieved in only 59% patients with DLI, compared to 93% of DLI negative patients (including one patient with confirmed complete response). Disease progression (PD) during iCT was observed in 41% and 6% of DLI+ and DLI- patients, respectively. After the good initial response to iCT and disease stabilisation, during the median follow up period of 36 months (ranges 12-42 months), the relapse has been detected in 9 out of 19 DLI+ patients (47%; median TTP was 28 months) and 10 out of 29 DLI- patients (34%; median TTP was 32 months). Nineteen patients in a DLI positive group died (60%; OS was 20.7 months), compared to nine patients in DLI negative group (29%; OS was 25.5 months). Conclusion: Our study suggests that patients who do have dermal lymphatic invasion confirmed alongside with the IBC diagnosis are more likely to have poorer response to induction chemotherapy, as well as shorter TTP and shorter OS. Therefore, it could be expected that proven skin involvement is responsible for the high metastatic potential and it might represent a very important factor for generally poorer prognosis of patients with IBC. PR90 BASIC CLINICAL ISSUES OF INFLAMMATORY CARCINOMA OF THE BREAST Arjeta Bebeci-Docaj Hygeia Hospital, Radiology Dpt., Tirana, Albania Is a uncommon breast carcinoma but aggressive form which has a characteristic clinical presentation and unique radiographic appearance. Inflammatory carcinoma account for 1-4% of all breast cancer typically occurring in women between 4th to 5th decade. Clinically inflammatory breast cancer mimics mastitis. The breast is enlarged often relatively short onset, indurate, erythematous, warm tender and painful. The skin is thickened and edematous with a peau d’orange appearance. There may or may not be an underlying palpable mass. The breast is not painful in spite of the alarming appearance on examination. The condition may also present with flattening, erythema, crusting, blistering or retraction of the nipple. Fixed palpable ipsilateral axillaries lymph nodes synonymous with metastatic disease are frequently observed. However systemic symptoms such as fever are absent which helps somewhat differentiate from mastitis. Rapid progression of the disease with associated erythematic affecting more than one third of the skin often distinguishes true IBC from a neglected locally advanced breast cancer that has developed inflammatory changes. IBC has a tendency to metastasize at an early stage. In cases where a biopsy does not give the diagnosis, skin biopsy may be indicated. Unlike other types of breast carcinoma in which surgery is the first modality of treatment, chemotherapy before surgery or radiation therapy is the current standard therapy. [1] Carlson RW, Allred DC, Anderson BO, Burstein HJ, Carter WB, Edge SB, et al. Breast cancer. Clinical practice guidelines in oncology. J Natl Compr Canc . 2009;7:122-92. [2] Chlebowski RT, Kuller LH, Prentice RL, Stefanick ML, Manson JE, Gass M, et al. Breast cancer after use of estrogen plus progestin in postmenopausal women. N Engl J Med. 2009;360:573-87. Abstracts / The Breast 24 S3 (2015) S21–S75 [3] Hayes DF. Clinical practice. Follow-up of patients with early breast cancer. N Engl J Med. 2007;356: 2505-13. [4] Goss PE, Ingle JN, Alés-Martínez JE, et al. Exemestane for breastcancer prevention in postmenopausal women. N Engl J Med. 2011;364:2381-91. PR91 NO PALLIATIVE SYSTEMIC ANTINEOPLASTIC THERAPY IN PATIENTS WITH DISTANT METASTATIC BREAST CANCER: A BLIND SPOT IN THE PERCEPTION OF ONCOLOGY? Uwe Güth2,3, Dorothy Huang5, Seraina Schmid4,1 1 Breast Center St. Gallen, Spital Grabs, Grabs, Switzerland; 2Cantonal Hospital Winterthur, Obstetrics & Gynecology, Winterthur, Switzerland; 3 Cantonal Hospital Winterthur, Breast Center “Senosuisse”, Winterthur, Switzerland; 4Spital Grabs, Gynecology & Obstetrics, Grabs, Switzerland; 5 University Hospital Basel, Gynecology & Obstetrics, Basel, Switzerland Introduction: Oncologists learn from their daily experiences with their patients. Following the progression and course of their diseases, which may last for years, increases their knowledge and clinical competence. In this study, we focus on a special situation of metastatic breast cancer (MBC) which is often overlooked by many oncologists. Patients who die from MBC without receiving palliative systemic antineoplastic therapy comprise a potential “blind spot” in the field of oncology. Methods: From all patients who were recorded in the Basel Breast Cancer Database with MBC (diagnosis of MBC: 1990-2011, n=369), we had complete information regarding the course of palliative therapy and outcome in 363 cases (98.4%). Of those, we evaluated the 323 patients (89.0%) who ultimately died of their metastatic disease. Results: The general type of palliative treatment was as follows: endocrine therapy only, n=68 (21.1%); chemotherapy only, n=86 (26.6%); combination regimen including endocrine therapy and chemotherapy, n=128 (39.6%). Forty-one patients (12.7%) did not receive systemic antineoplastic therapy in the palliative situation. The distribution dependent on age at first diagnosis of MBC was as follows: ≤59 years: 10/125 patients (8.0%); 60-69 years: 10/85 patients (11.8%); ≥70 years: 21/113 patients (18.6%). Compared to patients who had received palliative antineoplastic systemic therapy, those who remained untreated were significantly older (71 vs. 63 years, p<0.001), had shorter metastatic disease survival (2 vs. 24 months, p<0.001) and had more often secondary MBC (95.1% vs. 73.8%, p=0.002); furthermore, they had more often already declined systemic therapy in the adjuvant situation (12.8% vs. 4.8%, p=0.068). Discussion: Not surprisingly, a lack of treatment was most commonly seen in the subgroup of patients ≥70 years, since the physical condition and frequent comorbidities of these patients make oncologic therapies often impossible. However, in the subgroup of younger patients, approximately 10% also had not received any therapy before breast cancer-related death occurred. This group of younger women rarely had any relevant comorbidities and were potential candidates for chemotherapy. Most patients in this group were individuals who knowingly declined therapy. Despite the undisputed successes of modern therapy approaches, a certain percentage of the population may have a profound mistrust of and aversion to modern western medicine and decline such treatment. Skepticism of more aggressive therapy regimens is also reflected in the fact that in the group of patients who died of MBC and received treatment, approximately 25% only had endocrine regimens, and of these patients, around 20% were younger than 60 years. Patients who do not receive antineoplastic therapy in the palliative situation of MBC are rarely ever even seen by a specialized oncologist and thus play little role in their perception of the disease; nevertheless, these cases comprise an important part of the entity “metastatic breast cancer”. S53 PR92 NATIONAL CLINICAL BREAST CANCER REGISTRY: VIEWS AND APPROACHES S. Pramod Health Alert Organisation of India, Health Dpt., Garud colony, Deopur, Dhule, India Background: Cancer registry provides for health professionals/ researchers detailed information on incidence, trend and survival statistics. Cancer registries are population-based and seek to describe incidence, rates and trends of breast cancer within set populations. Also provide info on staging, treatment and allied clinical data required to monitor clinical care/outcomes. Development of such comprehensive database on breast cancer is long awaited in India. Objective: Our cancer NGO developed primary plan in consultation with four divisional hospitals and Health ministry. We aim to establish platform for multi-clinician, multi-centric collation of oncology datasets with breast cancer as pilot disease entity. We plan to integrate this concept at major cancer institutes with expertise from ESO. Proposal of intent has been approved at national level. Methods: Here we relate our experience of an initiative aimed at establishing methodology, statistical analysis and supportive control center for multicollaborator breast cancer data collection, aiming to establish national breast cancer data repository. Results: Initiated from four sites, modern technology of data collection, storage and analysis and distribution is optimized towards implementation of sustained comprehensive and multi-collaborator data registry. Need for minimum datasets, customization of technology to suit needs, data capture, storage and retrieval. These can be leveraged to inform future direction of initiatives: expanding scope of database, optimizing variables for data analysis and addressing data privacy, security and ownership concerns. We have developed our model database but need participation of private cancer care institutes and naturopathy clinics. Total participants projected by 2013 are 46. Conclusion: Our experience with this initiative over past three years has shown that data can be collated centrally in secure/private manner. Multicentre, multi-clinician collaboration is possible with collaborative efforts with ESO/WHO. Major concern is haphazard data/protocol maintenance by private entities. Most difficult data outsourcing was about survival statistics. National breast cancer Registry is distant dream in resource-poor-nations. But we have taken step in forward direction on this burning issue. PR93 THE CHANGES OF PLATELET-LYMPHOCYTE RATIO AS A SENSITIVE TUMOR MARKER TO PREDICT PROGRESSION IN METASTATIC BREAST CANCER Masahiro Kashiwaba, Hideaki Komatsu, Kazushige Ishida, Yusuke Matsui, Ryoko Kawagishi, Hanae Otsuki Iwate Medical University, Surgery, Morioka, Japan Recent studies reveal the clinical impacts of immunological background between breast cancer and host, i.e. tumor infiltrating lymphocyte and higher platelet-lymphocyte ratio (PLR) which may represent cachexia or worse condition related to poor prognosis. Although these phenomena were reported about primary tumors, biomarkers expressing aggressiveness of metastatic breast cancer (MBC) should be clinically more important. In order to evaluate clinical impacts of PLR in MBC, pts treated by chomo/anti-HER2- or endocrine therapies were investigated whether representative tumor markers (TMs), CEA and CA15-3 and PLR can predict the progression of disease with confirmation by CT/bone scans. S54 Abstracts / The Breast 24 S3 (2015) S21–S75 PR94 TUMOR MARKER (CA 15-3) MONITORING FAILED TO DETECT DISEASE RELAPSE AND TRIGGERED UNNECESSARY PROCEDURES – REPORT OF TWO CASES Ivan Bilic University Hospital Center Zagreb, Medical Oncology, Zagreb, Croatia Introduction: Despite robust study data along with consensual guidelines corroborating futility of tumor marker measurement as screening criterion for metastatic spread after breast cancer (BC) treatment, this practice is still not uncommon among oncologists. Tumor markers are neither sensitive nor specific enough for early relapse/ dissemination detection, with consecutive rise-up of healthcare costs. This case report describes false-positive and false-negative findings in two cases, in an attempt to illustrate need for discouragement of further use of tumor markers as clinical tools for relapse detection, thus pointing to possible money-saving change of practice. Case report 1: 65 yr. old patient is referred to PET-CT after mild but constant rise of tumor marker 7 months after surgery for BC. No signs of relapse were confirmed but thyroiditis is suspected. Following thyroiddisease confirmation and treatment commencement CA 15-3 level decreased. After three months relapse of breast cancer was confirmed by mammography and ultrasound-guided biopsy, with bone metastatic spread confirmed by scintigraphy. Case report 2: 68 yr. old patient experiences slight rise of tumor marker 15 years after primary BC treatment. After serious suspicion for metastatic spread to mediastinal lymph nodes is raised by PET-CT, she undergoes surgical lymphadenectomy with no evidence of tumor tissue. Three years of further follow-up revealed no other suspicion of metastatic disease, despite moderate elevation of serum tumor marker. Recorded rise of CA 15-3 could retrogradely be attributed to liver steatosis seen on abdominal ultrasound. Discussion: Breast cancer designated tumor markers (CEA, CA 153, CA 27.29) could be routinely used at oncologist’s discretion in the metastatic setting of BC according to recent guidelines. On the other hand, prescription of marker-testing after primary BC treatment could still be recorded at surprisingly high level, thus leading to unnecessary costs and clinical consequences. In the context of unmet healthcare needs for costly treatments of advanced breast cancer patients in many countries, practice of upfront tumor marker measurement should be considered as preventable resource-dissipation and avoided outside the setting of confirmed metastatic progression. PR95 PARANEOPLASTIC CEREBELLAR DEGENERATION AND BREAST CANCER Diana Freitas, Ana Marques, Joana Cunha, Catarina Portela, Rui Nabiço Hospital de Braga, Medical Oncology Dept., Braga, Portugal Introduction: Paraneoplastic neurological syndromes are neurologic manifestation associated with onconeural antibodies without the presence of brain metastases. It’s a rare diagnostic that appears in less than 1% of the patients with malignancies, being well known in small cells carcinoma of the lung and less in breast cancer. Clinical case: Female patient, 46 years old, with a past health history irrelevant. In August 2013, she was admitted in Emergency Room with progressive difficulty of gait and diplopia with 1 month of evolution, with the need of a wheelchair. In physical exam with oscillopsia, dysmetria and ataxic gait. Breast exam normal. In right axilla, a palpable adenopathy with 2 cm, hard, painless and deep layers. Gynecological examination without alterations. Magnetic resonance (MR) of the spine and brain revealed a hypersign in the right posterior parietal subcortex. Cerebrospinal fluid was normal with virus, borrelia and microbiologic exam negative. Thorax, abdomen and pelvic CT scan showed several adenopathies in the right axilla. Endometrial cavity with accented hypodensity and increase of the dimensions of the uterine cervix. Cervical-vaginal cytology was considered normal. Hysteroscopy and biopsies of endometrium normal. Mammography normal and breast ultrasonografy demonstrated on right axillary lymph nodes with 1.9×1.2cm. Biopsy of axillary nodes revealed metastasis of breast carcinoma, with estrogen receptors and Her2 positive. Breast MR without suspicion image. Laboratory finding with ANA positive (1/80) and anti Ri positive (3 +), Anti HU, anti Yo, CV2 Amphisysin, PNMA negative. Initiated treatment with immunoglobins (5 days) without significant clinical improvement. In multidisciplinary team consultation was decided to start treatment with chemotherapy with sequential scheme of anthracycline and taxane associated to trastuzumab (TZ). After 8 cycles with disappearance of the nystagmus and ataxic gait having recovered the total autonomy. Imagiologic evaluation without evidence of axillary disease. She underwent a modified radical mastectomy in March 2014. Anatomopathological analysis showed no residual neoplasm and absence of metastases in 21 lymph nodes isolated of the right _ ypT0 N0 CR. The patient received adjuvant radiotherapy and completed 1 year of TZ. Began hormone therapy with tamoxifen that still doing. In the last evaluation (March 2015) the patient still asymptomatic. Conclusion: The authors report this case to alert for the rarity of this syndrome and the need of fast detection and immediate treatment of the tumor to give to the patient the best chance of stabilizing and preventing further neurological deterioration. Clinical Issues: Radiation Oncology P096 CHARACTERISATION OF BREAST CANCER BRAIN METASTASES THROUGH A 21-YEAR PERIOD – A STUDY FROM THE SWEDISH ASSOCIATION OF BREAST ONCOLOGISTS (SABO) Anna Thulin3, Elisabeth Werner-Rönnerman3,6, Mattias Sundén1, Shahin de Lara6, Arnd Schoenfeldt5, Michael Wallberg2, Chaido Chamalidou3,7, Anikó Kovács3,6, Fredrik Enlund6, Barbro Linderholm3,4 1 Gothenburg University, Department of Economics, Gothenburg, Sweden; 2 Halland Hospital at Varberg, Department of Surgery, Halmstad, Sweden; 3 Institution of Clinical Sciences, Department of Oncology, Gothenburg, Sweden; 4Karolinska University Hospital, Department of OncologyPathology, Stockholm, Sweden; 5Norra Älvsborg County Hospital, Department of Pathology, TROLLHÄTTAN, Sweden; 6Sahlgrenska University Hospital, Department of Pathology, Gothenburg, Sweden; 7Södra Älvsborgs Hospital, Department of Oncology and Hematology, Borås, Sweden Background: Median survival after diagnosis of breast cancer brain metastases (BCBM) is only 3 to 12 months. Existing theories claim that BCBM is an increasing clinical problem likely due to adjuvant therapies not passing the blood brain barrier (BBB). Aims: To attempt to describe 197 patients with BCBM diagnosed in the west of Sweden between 1994 and 2014 with regards to receptor status, time from primary BC to diagnosis of BCBM, survival compared to extent of BCBM and to BC subgroup. Method: Records from patients with BCBM diagnosed 1994-2014 were studied. Clinical data and expression of oestrogen (ER), progesterone receptor (PgR) and human epidermal growth factor receptor 2 (HER2) was extracted. Difference in time from primary BC to comfirmed BCBM were compared between 1994-2004; 2005-14 with Mann-Whitney test. Survival according to extent of BCBM and expression of the ER, PgR and HER2 calculated by Kaplan-Meier and log-rank. Results: Data was studied for 197 patients. Fifty patients (25%) displayed brain metastases solely and 104 (53%) had other metastases prior to BCBM; 43 (22%) were diagnosed with other metastases after or at the time of BCBM diagnosis. A total of 116 patients (59%) had BCBM in the cerebrum, 25 (13%) in the cerebellum and 43 (22%), in both cerebrum and cerebellum concurrently. Seven patients (4%) displayed meningeal carcinomatosis (MC) solely. Twenty-one patients (11%) had both. Seventysix patients (38%) underwent surgery with in all cases but seven also radiotherapy (RT), 10 patients (5%) received stereotactic radiotherapy, 83 patients (42%) received whole brain irradiation whilst 28 patients Abstracts / The Breast 24 S3 (2015) S21–S75 (14%) received no treatment. Data on ER, PgR and HER2 was available in 172 (87%), 161 (82%) and 127 (66%) patients respectively. Expressions of the receptors were: HER2 positive (22%), HER2 negative (42%) and unknown (34 %); ER positive (49%), ER negative (38%) and unknown (12%); PgR positive (31%), PgR negative (50%), unknown (18%). Forty-one patients (21%) were confirmed triple negative. Our preliminary results show a significant difference in survival according to disease extent (1-2 BCBM vs ≥3 BCBM vs MC) (p=0.0004) (n=195). Differences were found in pairwise comparisons between 1-2 vs ≥3 BCBM (p=0.0013) and between 1-2 BCBM and MC (p=0.0059) whilst none was seen between ≥3 BCBM and MC (p=0.0812). Survival was influenced by BC subgroup (p= 0.0278) (n=127); worst outcome for patients with for TNBC but no difference in a comparison between luminal and HER2 positive BC. Time to diagnosis of BCBM was equal throughout the period (p=0.84). Data divided into intrinsic BC subgroup in the whole patient cohort after review by two independent pathologists and differences in biomarker expression between primary tumour and BCBM will be presented. PO97 BRAIN METASTASES IN HER2- POSITIVE BREAST CANCER PATIENTS: A SINGLE INSTITUTE EXPERIENCE Tahir Mehmood3, Asma Rashid3, Muhammad Irfan3, Sumera Nighat2, Bilal Aziz1, Mazhar Ali Shah3 1 Lahore General Hospital, Radiology, Lahore, Pakistan; 2Nishter Hospital Multan, Radiology, Multan, Pakistan; 3Shaukat Khanum Memorial Cancer Hospital and Research Centre, Radiation Oncology, Lahore, Pakistan Background: Human epidermal growth factor receptor 2- positive breast cancer (HER2+ BC) accounts for approximately 20% of all cases of breast cancer and have an aggressive course in metastatic setting due to distinct natural history. Brain metastasis is diagnosed in up to 40% of patients with HER2+ BC and is associated with substantial morbidity and mortality. In the present study, we aimed to investigate the incidence of brain metastases in patients with HER2+ BC treated at our institute. Materials and Methods: Between 1995 to 2009, the hospital information system identified 513 women with pathologically confirmed HER2+ breast cancer. Median age was 45 years (range 20-75 years). AJCC stage; stage I 7%, stage II 58% and stage III 35% of the patients respectively. Histological sub-types; infiltrating ductal carcinoma 96%, infiltrating lobular carcinoma 2% and others 2% respectively. Pathological grade; grade I/II in 41% and grade III 59% of the patients. 70% of the patients were treated with primary surgery. Chemotherapy regimens; adriamycin and taxanes based 75%, adriamycin based 5%, CMF 9% and other regimens in 5% of the patients either in neo-adjuvant or adjuvant setting. Only 6% of the patients received trastuzumab therapy. 5% of the patients did not receive any type of chemotherapy or targeted therapy. Post-operative radiotherapy was delivered to 86% of the patients. Incidence and median time to brain metastases were determined. Results: Median follow-up duration was 48 months. Patterns of failure; local 5%, regional 2%, and distant metastases in 26% of the patients. 14% of the patients who failed distantly were found to have brain metastases as first site of relapse. Overall brain metastases were seen in 25% of the patients. Median time to brain metastases was 13 months (range 8–50). Conclusions: Our results suggest that HER2+ BC sub-type remains more aggressive and is associated with a very high incidence of brain metastases. Future studies should be focused on new therapeutic options like small molecule tyrosine kinase inhibitors in adjuvant setting to decrease the incidence of systemic relapse. PO98 IS BRAIN METASTASES LOCATION ASSOCIATED WITH PROGNOSIS IN BREAST CANCER PATIENTS? Karolina Widera1, Dorota Gabryś2, Michał Jarząb3, Dawid Larysz2,4 1 Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Outpatient Clinic, Gliwice, Poland; 2Maria S55 Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Departmant of Radiotherapy , Gliwice, Poland; 3Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwce Branch, III Department of Radiotherapy and Chemotherapy, Gliwice, Poland; 4Medical University of Silesia, Department of Neurosurgery, Katowice, Poland The paradigm of brain metastases (BM) treatment has recently shifted towards the limited use of whole-brain irradiation and widespread application of radiosurgery. The number of metastases and it’s localisation, presence of extracranial disease, are potentially important for surgical decision making, and less influential for the radiosurgical treatment. There is suggestion that the location of metastases (supravs infratentorial +/-supratentorial) is not associated with the relapse after radiosurgical treatment. The aim of this study was to analyze the influence of brain tumor location on the prognosis in breast cancer patients mainly treated by WBRT+/- radiosurgery. Material and Methods: The group of patients was retrospectively selected from the population of breast cancer patients treated due to brain metastases by radiation therapy in MSC Memorial Cancer Center and Institute of Oncology in Gliwice. By the analysis of patient’s records we identified 315 pts treated between 2005-2014. Patients’ median age at BM diagnosis was 56 years (range 28-83). The majority (51.7%) presented good performance status (ECOG 0-1). BM co-occuring with active disease outside the brain were diagnosed in 218 pts (69.2%). Eighty seven pts (27,6%) presented with a single metastatis, 68 pts (21,6%) with 2-3, and 160 pts (50,8%) with multiple BM. Supratentorially located disease was found in 133 pts (42.2%), 37 pts (11,7%) have had infratentorial BM, while in 145 pts (46%) they were located in both compartments. More detailed analysis of tumor location (lobes, deep brain structures) was also carried out. All BM were treated with radiotherapy, 89.8% underwent WBRT, 19.7% of patients underwent additional metastasectomy, 39.7% stereotactic irradiation: in combination with WBRT 29.5% or alone 10.2%. One hundred twenty two pts (38.7%) underwent systemic treatment after BM diagnosis. Statistical analysis was carried out by the use uni-and multivariate Cox regression, with overall survival from the diagnosis of brain metastases as the major endpoint in the study. Results: Median OS from BM diagnosis was 6 months (0-119 months ). The survival time was highly associated with the number of metastases (p<0.05), and associated with the biological subtype of the tumor (longest for luminal subtype, intermediate in HER2-positive disease, shortest in triple negative disease, p<0.05). The presence of extracranial disease and poor performance status were negatively impacting OS (p<0.05). In the comparison of limited number of metastases (1-3) located supratentorially, infratentorially and in both locations there were no differences in the overall survival time (n.s.). The similar pattern was observed in multiple metastases group (n.s.), although in both strata the number of BM was stronger factor than their location. Conclusion: Metastasis location in brain appears not to determine prognosis in patients treated by radiation therapy. PO99 TREATMENT OUTCOMES OF BREAST CANCER BRAIN METASTASES Ivica Ratosa, Tanja Marinko, Andreja Gojkovic Horvat, Jasenka Gugic, Manja Sesek, Mateja Bozic, Marija Snezna Paulin Kosir, Elga Majdic Institute of Oncology Ljubljana, Department of Radiation Oncology, Ljubljana, Slovenia Background: Breast cancer (BC) brain metastases (BM) influence quality of life and survival in metastatic BC. The purpose of this retrospective study is to evaluate treatment outcomes in patients with BM, treated with whole brain radiotherapy (WBRT) regarding to molecular subtypes, clinical characteristics and available prognostic indexes (PI). Methods: We retrospectively reviewed medical records of 133 metastatic BC patients treated with WBRT from April 2005 to December 2012 at Institute of Oncology Ljubljana. Intrinsic subtypes of BC were defined as luminal A (ER+, HER2-, low Ki67, high PR+), luminal B HER2- S56 Abstracts / The Breast 24 S3 (2015) S21–S75 negative (ER+, HER2-, high Ki67 or low PR+), luminal B HER2-positive (ER+, HER2+, any PR/Ki67), HER2-enriched (HER2+, ER-) and triple negative (ER-, PR-, HER2-). Prognostic groups of recursive partitioning analysis (RPA), graded prognostic assessment (GPA), breast GPA and simple survival score (including Karnofsky performance status (PS) and extracranial metastases) for patients with BC BM (SS-BM) were compared. Overall survival (OS) was calculated using the Kaplan-Meier method. Cox regression model was used to evaluate prognostic values of PI, clinical and biological characteristics. Results: Median age at BC diagnosis, diagnosis of any metastatic disease and BM diagnosis was 51.7, 56.6 and 58.6 years, respectively. At time of BM diagnosis, 114 (85.7%) patients had extracranial disease. In addition to WBRT, 27 (20.3%) patients had BM surgery. The median OS from BM diagnosis was 8.3 months (CI 95%, 5.4-11.2). Asymptomatic patients at time of WBRT had longest median OS of 21.0 months (CI 95% 9.2-32.7, p<0.0005). WBRT improved BM symptoms in 85 (64%) patients, which was significantly associated with improved median OS (12.3 versus 3.6 months, p<0.0005). 26 (19.5%) patients had luminal A, 18 (13.5%) luminal B HER2-, 31 (23.3%) luminal B HER2+, 20 (15.0%) HER2-enriched and 18 (13.5%) triple negative tumors at BC diagnosis. Molecular characteristics of 20 (15.0%) tumors were missing. Longest median OS of 13.5 (CI 95%, 8.2-18.7) and 13.0 (CI 95%, 2.2-23.9) months was seen in luminal B HER2+ and HER2-enriched tumors, respectively. OS difference between molecular subtypes was not statistically significant (p=0.070). In multivariate analyses, better PS at time of WBRT (p<0.0005), BM surgery (p=0.001), systemic hormonal therapy within 3 months before or after WBRT (p=0.024), good prognostic groups of Breast GPA (p=0.003) and SS-BM (p=0.027) were all significantly associated with OS improvement. Conclusion: Patients with BM have different outcomes after WBRT, regarding symptoms improvement and OS. Breast GPA and SS-BM seem to be useful tools for personalised cancer treatment decisions in palliative care for BC patients with BM. PO100 IMRT-SIB FOR LOCALLY ADVANCED INOPERABLE BREAST CANCER PATIENTS Dorota Gabrys1, Roland Kulik1, Agnieszka Namysł-Kaletka1, Iwona Wzietek1, Karolina Widera2, Krystyna Trela-Janus1 1 Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Radiotherapy, Gliwice, Poland; 2Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Outpatient Clinic, Gliwice, Poland Radiobiological and clinical data suggest that higher dose per fraction with shortening overall treatment time in breast cancer patients may enhance locoregional control. This, ethics approved, prospective study was designed to evaluate the technical feasibility, toxicity and early results of simultaneous integrated boost (SIB) for locally advanced, breast cancer patients. Eighteen women (8 right; 10 left sided) received radiotherapy with SIB applying various dose levels in 30 fractions. Doses were individualized according to the stage of the disease. The regional lymph nodes received 49.8-60 Gy, df 1.66-2 Gy, metastatic lymph nodes received 66-69.9 Gy, df 2.2-2.33 Gy, breast with chest wall was irradiated with a dose 49,8-60 Gy, the whole breast to 60Gy, and the highest dose was delivered to the breast tumour 69.9 Gy. Early toxicity and results were prospectively recorded using CTCAE 4.03, QLQ 30, QLQ Br23, and Lent Soma scale. All patients underwent planning CT or FDG PET-CT. The majority (13 patients) were treated with the use of Clinac IMRT-SIB, 5 patients were treated with Tomo-SIB. The median age was 59 years (range 37 – 78). Median tumor size was 6 cm (range 1-12 cm). Almost all (13) patients presented with clinical stage IIIB of the disease, one patient with IIIA, two with IIIC. Two patients in stage IIA were not qualified to surgery, one was not suitable for resection due to medical conditions, the second did not agree for a surgery. All patients received chemotherapy, 11 patients FAC only, remaining various combinations with taxanes. Ten patients were treated with hormonal therapy, the majority of them (8 patients) were treated with tamoxifen. The mean dose to the ipsilateral lung was 16 Gy (range 12.9 - 20.7). The percentage of lung receiving >5Gy was 74.4, >10Gy - 50.3, >20Gy - 25.6. The mean heart dose was 9.6 Gy (range 5.4 - 16.9) and V5Gy was 64.1, V10Gy 28.9, V30Gy - 4.9. There was significant decrease in WBC (median 6.2 vs. 4.9 × 103/ul; p-0.03), PLT (235 vs. 184 × 103/ul; p-0.01) before and after radiotherapy. RBC and Hb did not significantly decrease. The maximum Grade 3 early skin toxicity by the end of treatment was present only in two patients. No Grade 4 toxicities were observed. The maximum Grade 2 fatigue, Grade 1 dysphagia, Grade 1 pain with swallowing were recorded. The early skin toxicity resolved in all patients evaluated one month after finishing the treatment. Conclusions: This 6-week course of definitive radiotherapy using SIB technique showed to be feasible and was associated with acceptable early skin toxicity. Long-term follow-up data are needed to assess late toxicity and clinical outcomes. PO101 PROGNOSTIC FACTORS AFTER GAMMA KNIFE RADIOSURGERY IN BREAST CANCER PATIENTS WITH BRAIN METASTASES Shoko Hayama3, Osamu Nagano2, Naohito Yamamoto1, Takeshi Nagashima3, Rikiya Nakamura1, Masaaki Sakamoto4 1 Chiba Cancer Center, Division of Breast Surgery, Chiba City, Japan; 2Chiba Cerebral and Cardiovascular Center, Gamma Knife House, Ichihara City, Chiba, Japan; 3Chiba University, General Surgery Department, Chiba City, Japan; 4Kameda Medical Center, Division of Breast Surgery, Kamogawa City, Chiba, Japan Backgrounds and Aim: Gamma knife radiosurgery (GK) is one of the effective treatment options for brain metastases (BM) from breast cancer. Some reports showed its efficacy on prolongation of survival. However, the prognostic factors associated with good prognosis in BM patients remains unclear. Therefore, we set out to clarify these factors. Materials and Methods: We retrospectively analyzed the data of 70 breast cancer patients with BM who were treated with GK in our institution from January 2005 to December 2014. We exploratory examine the relationships between clinico-pathological factors and overall survival (OS) after GK. Clinico-pathological factors included age at initial diagnosis, performance status (PS), neurocognitive symptoms, the number and volume of BM lesions, WBRT history, craniotomy history, time to BM from the primary diagnosis, time to BM from the first time of recurrence, the number of systemic therapies after GK, and breast cancer subtypes. Results: The median age at initial diagnosis was 48 (range 28-75). The median KPS at diagnosis of BM was 90 (60-100). Fifty-two cases (74%) had neurocognitive symptoms. The median number of BM was 3 lesions (1-32). Twenty-four cases (34%) had a history of craniotomy and 18 cases (26%) had WBRT. The median period from primary diagnosis to BM was 54 months (0-330) and the median period from the first recurrence to BM was 14 months (0-171). The median number of systemic therapy after GK was 1 regimen (0-7). In breast cancer subtypes, Estrogen receptor (ER) positive/Human epidermal growth factor receptor 2 (HER2) negative, ER (+)/HER (+), ER(-)/HER2(+), ER(-)/HER2(-), were 21, 14, 17, 18 cases, respectively. The cases with PS2, neurocognitive symptoms, WBRT history, or the number of GK1 had significant relationships with poor OS after GK. The OS after GK in ER(+)/HER2(+) group were significantly better than other subtypes (1-year survival rate was 85%, p <0.05). Conclusions: Our study showed that patients with no symptoms and good PS at BM diagnosis demonstrated good prognosis after GK. PR102 STERNAL RECURRENCE IN TREATED PATIENTS OF ADVANCED STAGE CARCINOMA BREAST - AN EMERGING ENTITY Divyesh Kumar VCSGGMS&RI, Radiation Oncology, Srinagar, India Abstracts / The Breast 24 S3 (2015) S21–S75 Background: Bone metastasis is a frequent complication of cancer. It occurs in up to 70% of patients with advanced breast cancer. Breast cancer has the tendency to relapse in the bones, and 56% of autopsy cases reveal the occurrence of bone metastasis. The most frequent sites of bone metastasis are the thoracic and lumbosacral spine. The present analysis aims to bring forth an unusual site of bony recurrence in treated patients of LABC (locally advanced carcinoma breast) and the effect of palliative RT in these inoperable patients. Material and Methods: 9 patients with sternum as site of metastasis were detected during follow up of 10 months of post treated LABC cases .All, except one, patient were on hormonal therapy at the time of detection and had earlier undergone MRM, RT and chemotherapy (CAF × 6 cyc). 6/9 patients were postmenopausal and 3/9 patients were premenopausal. 6 patients had ER+,PR+ as receptor status, 2 patients ER+,PR-ve and 1 patient ER-ve, PR-ve. Out of 6 receptor positive (ER+,PR+ve) 4 patients were receiving tab. Letrozole while 2 were on tab. tamoxifen. 2 patients with ER+,PR- were on tab. tamoxifen. Metastasis in these patients was confirmed with bone scan (increased tracer uptake) and FNAC from the sternal site (metastastic adenocarcinoma consistent with breast primary), rest workup was negative for metastasis elsewhere. All patients presented with swelling and pain at sternal site and were found to be inoperable hence were given palliative RT (20Gy/5#) and inj. zolidronic acid. Results: 2/9 had significant pain reduction, 6 had partial response to pain while 1 patient had minimal response to pain as assessed by VAS scale. Conclusion: Pain at sternal metastasis to a certain extent can be taken care of with the palliative radiation therapy and/or zolidronic chemotherapy but the exact etiopathogenesis, prevention protocols and definitive modality of treatment in inoperable cases of sternal metastasis still needs to be explored and discussed. S57 administered following the European Standard Operative Procedures of Electrochemotherapy. Tumor response was clinically assessed adapting the Response Evaluation Criteria in Solid Tumors (RECIST) and toxicity was evaluated according to CTAE 4.0. Cox regression analysis was used to identify predictive factors. Results: Tumor response was evaluable in 113 patients for a total of 214 tumors (median 1/patient, range 1−3). The overall response rate after two months was 90.2%, while the complete response (CR) rate was 58.4%. In multivariate analysis, small tumor size (P<0.001), absence of visceral metastases (P=0.001), estrogen receptor (ER) positivity (p=0.016), and low Ki-67 index (P=0.024) were significantly associated with CR. In the first 48 hours, 10.4% of patients reported severe skin pain. Dermatological toxicity included G3 skin ulceration (8.0%) and G2 skin hyperpigmentation (8.8%). One-year local progression-free survival was 86.2% (95% CI 79.3-93.8) and 96.4% (95% CI 91.6−100) in the subgroup of complete responders. Conclusions: In this study, small tumor size, absence of visceral metastases, ER-positivity, and low Ki-67 index were predictors of CR after ECT. Patients who achieved CR experienced durable local control. ECT represents a valuable skin-directed therapy for selected patients with BC. PO104 THE SURGICAL MANAGEMENT OF LUNG NODULES IN BREAST CANCER PATIENTS Kazuo Matsuura1, Midori Noma1, Ryosuke Arata1, Keiso Matsubara1, Satoshi Sueoka1, Masateru Yamamoto1, Ryuta Ide1, Toshiyuki Itamoto1, Takayuki Kadoya2, Morihito Okada2, Koji Arihiro2 1 Hiroshima Prefectural Hospital, Breast Surgery, Hiroshima, Japan; 2 Hiroshima University Hospital, Breast Surgery, Hiroshima, Japan Clinical Issues: Surgical Oncology BP103 ELECTROCHEMOTHERAPY IN THE TREATMENT OF CUTANEOUS METASTASES FROM BREAST CANCER: A MULTICENTER COHORT ANALYSIS Roberto Agresti8, Carlo Cabula11, Luca Campana14, Gretha Grilz2, Riccardo Bussone2, Sara Galuppo14, Sara Valpione14, Leonardo De Meo4, Antonio Bonadies12, Pietro Curatolo10, Michelino De Laurentiis13, Maria Renne3, Tommaso Fabrizio6, Nicola Solari5, Michele Guida7, Antonio Santoriello1, Massimiliano D’Aiuto9 1 “Federico II” University, Department of Medicine and Surgery, Napoli, Italy; 2A.O.U. Città della Salute e della Scienza, Breast Surgery Unit, Torino, Italy; 3Fondazione T. Campanella, Oncologic Surgery, Catanzaro, Italy; 4Humanitas-Centro Catanese di Oncologia, Oncologic Surgery, Catania, Italy; 5IRCCS San Martino-IST, Surgical Unit 1, Genova, Italy; 6 IRCCS, Referral Cancer Center of Basilicata, Plastic Surgery Unit, Rionero in Vulture, Italy; 7Istituto dei Tumori, Medical Oncology Unit, Bari, Italy; 8 Istituto Nazionale dei Tumori, Breast Surgery Unit, Milano, Italy; 9Istituto Nazionale Tumori “Pascale”, Breast Surgery Unit, Napoli, Italy; 10La Sapienza University, Dermatology and Plastic Surgery Department, Roma, Italy; 11Ospedale Oncologico A. Businco, Oncologic Surgery, Cagliari, Italy; 12 San Gallicano Dermatologic Institute, Plastic Surgery Unit, Roma, Italy; 13 Seconda Università di Napoli, Medical Oncology, Napoli, Italy; 14Veneto Institute of Oncology IOV-IRCCS, Oncologic Surgery, Padova, Italy Background: The management of breast cancer (BC) skin metastases represents a therapeutic challenge. Electrochemotherapy (ECT) combines the administration of bleomycin (BLM), a poorly permeant cytotoxic agent, with temporary permeabilization induced by locallyadministered electric pulses. Preliminary experience with ECT in BC patients is encouraging. Patients and Methods: 125 patients with BC and skin metastases, who underwent ECT at 13 Italian centers between 2010 and 2013, were enrolled in a multicenter retrospective cohort study. The treatment was Background: A biopsy of lung nodules in patients, who had received previous surgery for breast cancer, can be performed with three aims: to confirm that the lesion is lung metastasis, to confirm the diagnosis of other diseases including primary lung cancer, and to reassess the biological features of recurrent tumors. Discordance in estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) status between primary breast cancer and metastatic lesions has been reported. The aim of this study was to evaluate the role of lung biopsy in the diagnosis and to reassess the changes in tumor phenotype of lung metastases. Methods: A total of 53 consecutive patients who underwent surgery in 45 or lung biopsy in 8 for lung nodules at two institutions between 1997 and 2014 after curative operation for breast cancer were retrospectively reviewed. Results: The pathologic diagnoses of lung nodules were lung metastases of breast cancer in 25 patients, primary lung tumor in 21 (adenocarcinoma in 17; large cell carcinoma in 2; small cell carcinoma and carcinoid tumor in 1 each), and other diagnoses in 7 (Inflammation in 4; organizing pneumonia in 2 and hamartoma in 1). Median follow up duration were 117.9 months in metastatic breast cancer patients and 93.2 months in other histology patients (p=0.103). The average diseasefree interval from the treatment for primary breast cancer were 66.3 months in metastatic breast cancer patients and 52.7 months in other histology patients (p=0.325). The 3-year survival rate after the lung biopsy were 84.2% in metastatic breast cancer patients and 91.7% in other histology patients (p=0.436). Of all cases, 30 patients (57%) had a single lung nodule. The 3-year survival rate after the lung biopsy was significantly longer in patients with single nodule (100%), including primary lung cancer patients, than in patients with multiple nodules (71.9%) (p=0.00341). Of 25 cases of metastatic breast cancer, 17 patients maintained the same tumor phenotype, whereas discordance of ER, PR, HER2, and Ki67 expression was observed between primary sites and metastatic sites in 6 (24%), respectively ER gain, 2; PR gain, 1; Ki67 gain, 1 and HER2 loss, 2. Especially, 3 cases of ER, PR gain could receive endocrine therapy instead of chemotherapy. Conclusion: As lung nodules that appear in breast cancer patients are not always lung metastases, the pathologic diagnosis should be confirmed, S58 Abstracts / The Breast 24 S3 (2015) S21–S75 and surgery is an option for the pathologic confirmation. Furthermore, discordance in tumor phenotype from primary breast cancer to matched lung metastasis occurred in 24% of cases. It is necessary for clinicians to check biomarker profile in recurrent breast cancer patients as it may assist a shift in the treatment plan. PO105 SUCCESS AND FAILURE OF PRIMARY MEDICAL, NON-OPERATIVE MANAGEMENT IN PATIENTS WHO PRESENT WITH STAGE IV BREAST CANCER Uwe Güth2,5, Dorothy Huang5, Andreas Schötzau3, Seraina Schmid4,1 1 Breast Center St. Gallen, Spital Grabs, Grabs, Switzerland; 2Cantonal Hospital Winterthur, Breast Center “Senosuisse“, Winterthur, Switzerland; 3 Eudox, Institute for Biomathematics, Basel, Switzerland; 4Spital Grabs, Gynecology & Obstetrics, Grabs, Switzerland; 5University Hospital Basel, Gynecology & Obstetrics, Basel, Switzerland Introduction: There is a long-standing controversy as to whether there is benefit to resecting the primary tumor in patients who present with stage IV breast cancer (BC). Many retrospective studies have demonstrated significant survival advantage in patients who underwent surgery; on the other hand, two prospective randomized trials failed to confirm these results. However, survival is only one component in a non-operative approach. If patients and physicians agree on nonoperative treatment as initial management, this decision is made on the assumption that the patient’s life expectancy is limited and that long-term control of locoregional disease can be achieved with systemic therapy only. Thus, success of a non-operative management might also be reached independent of survival time when one major aim of this approach is reached: the avoidance of clinically relevant locoregional progression during the further disease course. We evaluate the rates of and predictive factors for success and failure of this particular therapy approach. Methods: Forty-four patients with stage IV BC, diagnosed between 1990 and 2009 at the University Women’s Hospital Basel, Switzerland, who were initially treated only systemically and in whom local control while avoiding surgery was the intended long-term therapy goal were analyzed. Failure of therapy was defined when a) secondary surgery had to be performed due to locoregional progression; or b) in case of no surgery, severe locoregional clinical signs/symptoms were observed during the further course of the disease. The study cohort had a median age of 67.5 years at diagnosis. The median MDS survival was 24.5 months. Results: Most patients responded positively after starting medical treatment (n=34, 77.3%). In six patients (13.6%), secondary surgery had to be performed. In the cases where no surgery was performed (n=38), 14 women (36.8%) suffered from severe locoregional symptoms in the further disease course. In total, our defined therapy goal of nonoperative but systemic therapy as first-line management was not met in 20 patients (45.5%). Overall survival time (p=771), hormone receptor status (p=1.00) and the number of metastatic sites (p=1.00) had no impact on therapy success. Older patients and those with larger tumors had a trend toward failure of therapy (both p=0.076); non-inflammatory skin involvement was significantly associated with failure of therapy (p=0.035). Discussion: Non-operative treatment may be offered to BC patients with primary metastatic disease. The patients must be informed that, with regard to survival, the impact of this approach is still unclear; but nevertheless, is not successful in more than 40% of the cases with regard to local control. PO106 N2 LYMPH NODES POST-PRIMARY CHEMOTHERAPY MAY PREDICT RECURRENCE IN LOCALLY ADVANCED BREAST CANCER Carol Ann Benn1,3, P. Mapunda3,2, S. Rayne1,3 1 Helen Joseph Breast Care Clinic, Johannesburg, South Africa; 2University of Edinburgh, Edinburgh Surgical Sciences Qualification, Edinburgh, United Kingdom; 3University of the Witwatersrand, Faculty of Health Sciences, Department of Surgery, Johannesburg, South Africa Background: Locally advanced breast cancer at initial presentation is a common entity in South Africa. Historically almost all patients with big T4 breast cancers were categorized as inoperable. Advances in oncology therapies and in reconstructive techniques have enabled us to downstage these tumours and render them operable. Timing and benefit of surgery on durable local control should be better defined particularly in relation to factors which may predict early recurrence. This study looked retrospectively at the relationship between clinical factors, neo-adjuvant treatment response and early local or systemic recurrence. Through this we hope to better select the patients who will benefit from comprehensive local excision and the timing of surgery in relation to oncology treatment. Methods: This was a retrospective records review over a three-year period of patients diagnosed with T4 breast cancer at the Helen Joseph Breast Care Clinic based in a government hospital in Johannesburg, South Africa. All patients diagnosed histologically with an invasive breast cancer of any subtype presenting with the clinical stage T4NxMx were included (nodal status and metastases are not in the recruitment criteria). Medical records were reviewed for demographics, clinical and radiological characteristics, and histology. Response to treatment outcome was also documented. Results: Of the 87 patients who were included with a T4 (NxMx) diagnosis, 65 were black (74.7%), 13 were white (14.9%), 6 Indian (6.9%) and 3 coloured (3.4%). Median age at presentation was 62 years (range: 31-103 years). 11 patients had loco-regional recurrences. They all received primary chemotherapy and were deemed clinically resectable. 9 out of the 11 were alive 18 months post surgery. Chemotherapy protocols involved either 6AC, or AC T. 10/11 of the patients who reoccurred had N2 lymph nodes on final histology. The histology of the recurrences were majority luminal B 8/11. Conclusion: Timing of surgery in T4 LABC patients may be better predicted by a focused nodal ultrasound prior to decision to operate or continue chemotherapy in clinical responders. These patients benefit from surgery but a significant rate of recurrence (one quarter in this study) should be expected. Nodal disease burden may be an accurate indicator of recurrence in this group. PO107 SURGICAL RESECTION OF THE PRIMARY TUMOR IS ASSOCIATED WITH INCREASED LONG-TERM SURVIVAL IN PATIENTS WITH STAGE IV BREAST CANCER Anna Sukhotko, A. D. Zikiryahodjaev, L.V. Bolotina, A.A. Volchenko Moscow P.A. Gerzen’s Cancer Research Institute – The National Medical Research Radiologic Center of the Ministry of Health of the Russian Federation, Department of Oncology and Reconstructive-plastic Surgery of the Breast and Skin, Moscow, Russian Federation Purpose: To evaluate the expediency and timeliness of performance of surgical treatment as a component of multi-therapy treatment of patients with stage IV breast cancers. Materials and Methods: This investigation comparatively analyzed the results of complex treatment with or without surgery in patients with metastatic breast cancer. We analyzed retrospectively treatment experience of 196 patients with generalized breast cancer in the department of oncology and breast reconstructive surgery of P.A. Herzen Moscow Cancer Research Institute from 2000 to 2012. Average age was (58±1.1) years. Invasive ductual carcinoma was verified in 128 Abstracts / The Breast 24 S3 (2015) S21–S75 patients (65.3%), invasive lobular carcinoma - 33 (16.8%), complex form 19 (9,7%). Complex palliative care involving drug and radiation therapies was performed in two patient groups. The first group includes 124 patients who underwent surgical intervention as complex treatment, the second group includes 72 patients with only medical therapy. Standard systemic therapy was given to all patients. Results: Overall, 3-and 5-year survival in fist group was 43.8 and 21%, in second - 15.1 and 9.3% respectively [p=0.00002 log-rank]. Median survival in patients with surgical treatment composed 32 months, in patients with only systemic therapy - 21. The factors having influencing an influence on the prognosis and the quality of life outcomes for of patients with generalized breast cancer were are also studied: hormonedependent tumor, Her2/neu hyper-expression, reproductive function status (age, menopause existence). Conclusion: Removing primary breast tumor in patients with generalized breast cancer improve long-term outcomes. Three- and five-year survival increased by 28.7 and 16.3% respectively, and median survival – for 11 months. These patients may benefit from resection of the breast tumor. One explanation for the effect of this resection is that reducing the tumor load influences metastatic growth. PO108 NOVEL AND SAFE TECHNIQUES IN IMMEDIATE BREAST RECONSTRUCTION FOR LOCALLY ADVANCED BREAST CANCER, PARTICULARLY INFLAMMATORY BREAST CANCER Marisse Venter, C.A. Benn, S.D. Moodley, S. Nayler Breast Care Center of Excellence, Breast Oncology, Johannesburg, South Africa Introduction: Locally advanced breast cancer poses unique surgical and reconstructive dilemmas both in terms of oncological safety, and patient quality of life. Studies involving reconstruction are few, and most units do reconstruct immediately if local surgery is performed. In our unit we perform a two part surgery spaced 48 hours apart in order to facilitate immediate reconstruction in these patients. Aims: Our aim is to demonstrate that breast reconstruction is possible in advanced breast cancer thus improving patient quality of life. Methods: We performed a prospective study of patients with locally advanced breast cancer and inflammatory breast cancer treated in our unit from October 2013 to August 2015. Patients with inflammatory breast cancer, extensive DCIS with invasion and nodal disease, unknown primary disease were included in the study. Standard oncological protocol for locally advanced breast cancer (primary chemotherapy) was observed. We evaluated the patient demographics, pre and postoperative histological features, tumour biology, oncological and reconstructive procedures and cosmetic outcomes. Results: 78 patients were referred to a single reconstructive surgeon during this period; 2 patients had bilateral breast cancer, 21% inflammatory cancers, 8% unknown primary, 37% multi-centric disease, 17% extensive DCIS, with invasive and nodal disease and 17% large tumors post primary chemotherapy. The average patient age was 47 years. All patients received radiation post surgery. Chemotherapy protocols were initially decided in the MDM. The majority of patients underwent reconstruction to the affected breast with an opposite side matching procedure. The average duration of the first procedure was 25 min and the reconstructive procedure was 133 min. Surgery and reconstructive outcomes were evaluated photographically. More than 50% of patients had a complete histological response. Conclusion: Breast reconstruction is possible in locally advanced breast cancer. The immediate delayed reconstruction provides reconstruction in patients who were previously only offered delayed reconstruction, if at all. The procedure allows for adequate histological assessment and clear margins prior to immediate reconstruction and facilitates a better cosmetic result. Advances in chemotherapeutic regimes have improved the survival of these patients and breast reconstruction improves their quality of life. S59 PO109 THE IMPACT OF LOCOREGIONAL TREATMENT OF PRIMARY METASTATIC BREAST CANCER Roman Liubota2, Roman Vereshchako2, Valeriy Cheshuk2, Mykola Anikusko1, Iryna Liubota1,2 1 Municipal Clinical Oncological Centre, Municipal Clinical Oncological Centre, Kyiv, Ukraine; 2National Medical University named after O.O. Bogomolets, Oncology Department, Kiev, Ukraine Background: Systemic therapy is usually the main treatment for patients with primary metastatic breast cancer (PMBC) and use of others radical methods, such as surgery or radiotherapy, in palliative care are controversial. The aim of this study was to investigate the impact of primary tumor locoregional treatment (surgery or/and radiotherapy) on overall survival of patients with PMBC. Patients and Methods: The study included women aged 23 to 76 (55.4 ± 0.6) years old, who lived in Kiev at the time of diagnosis with PMBC from 2000 to 2010. Among the 295 patients, the effect of locoregional treatment of primary tumor on survival outcomes was evaluated in 177 women with distant metastases at diagnosis of breast cancer. 35 patient received breast surgery (group 1), 95 women’s with PMBC gotten radiotherapy (group 2) and 47 patients - combination of breast surgery and radiation (group 3). The remaining 118 patients don’t received surgery or/and radiotherapy (group 4). All patients received systemic cytotoxic chemotherapy. The median follow-up period was 22.3 ± 1 months (range, 1–91 months). The Kaplan-Mayer method was used to estimate the patient’s survival rate. Results: In patients of study groups was no significant difference for age, menstrual function, ER status, HER2 receptor status, site of metastases and number of metastatic lesions. 2 and 5-year overall survival in patients of group 1 was 54% and 32%, group 2 – 47% and 8%, group 3 – 73% and 18%, whereas those of patients of groups 4 were 26% and 9%, respectively. The median survival for patients who underwent surgery was 36 months, women’s with PMBC who received radiotherapy – 24 months, patients who treated combination of breast surgery and radiation was 30 months versus 18 months in patients who have not received primary tumor locoregional treatment (surgery or/ and radiotherapy). Conclusions: The results of this study show the positive impact of locoregional treatment on the prognosis of patients with PMBC. However, further research should be aimed at establishing criteria for selecting patients with primary metastatic breast cancer for primary tumor locoregional treatment (surgery or/and radiotherapy). PO110 METASTASES OF LOBULAR BREAST CARCINOMA IN THE TERMINAL ILEUM AND ILEOCAECAL VALVE Sala Abdalla, Peter Macneal, Cynthia-Michelle Borg University Hospital Lewisham, Department of General Surgery, London, United Kingdom Gastrointestinal (GI) metastases from primary breast carcinoma are rare but more common in invasive lobular carcinoma than invasive ductal carcinoma. The symptoms may be non-specific and the presentation can occur many years after the initial primary breast carcinoma. Radiological and endoscopic findings can be difficult to distinguish from inflammatory bowel disease and primary carcinoma of the GI tract. Histological and immunohistopathology assessment will usually confirm the diagnosis of metastatic breast carcinoma. We report the first case of lobular breast carcinoma metastasizing to the terminal ileum and ileocaecal valve 19 years following treatment for breast cancer in an 82-year-old woman. Staging investigations revealed synchronous metastases in bones and the pleura. A high index of suspicion and awareness of the potential long interval in the presentation of metastatic breast cancer help in making an accurate diagnosis and rapid clinical management. S60 Abstracts / The Breast 24 S3 (2015) S21–S75 PR111 SURGICAL TREATMENT OF ADVANCED BREAST CANCER. URGENCY OF THE PROBLEM Michail J. Myasnyankin Federal State Budget Institution, Oncology Scientific – research Institute named after N.N. Petrov, Dept. of General Oncology, St. Petersburg, Russian Federation Purpose: Determination of the effect surgery on the results of complex treatment of patients with advanced breast cancer (breast cancer). Material and Methods: The study included 196 patients treated in the department from 2000 to 2012 diagnosis was made according to the International TNM-classification (7th ed., 2011): Tl Nl M1 - The presence of distant-metastases. The study included women aged 32-80 (58 ± 1,1) years. Frequently diagnosed with invasive ductal carcinoma -128 (65.3%) and invasive lobular carcinoma - 33 (16.8%), and combined forms of ductal lobular cancer - 19 (9.7%), a rare form of cancer -16 (8.2%) patients. As a result of study patients were divided into 2 groups. In group 1 (n = 124) included patients who surgery is performed in terms of complex treatment, in group 2 (n = 72) - large , SPECIAL undergoing only conservative treatment. Surgery patients Group 1 performed in the volume of palliative mastectomy. In the first stage surgical vme-vention on the primary focus was performed in 16 (12.9%) patients due to the risk of bleeding, often vital reasons. In 108 (55.1%) patients, in addition to the removal of the primary tumor. You are use 3-r lymphadenectomy. Results: Overall 3- and 5-year survival rate Group 1 patients was 51.0 and 36.2%, while as the 2 groups of patients - 15.0 and 7.9% respectively (p<0.05). The median duration of life for patients who have not performed surgical intervention was 24 months against 42 months in patients who underwent palliative operation. The most common distant metastasis dosing was recorded at a tumor G2 that was more than 2 times higher in comparison with tumors of the G1. Conclusions: Surgical removal of the primary focus in the breast in patients advanced breast cancer significantly enhances treatment cheniya and improve the prognosis of the disease. In women who underwent palliative mastectomy, 3- and 5-year survival increased by 36% and 29% respectively, while the length life - 18 months, compared with patients conservative treatment. Clinical Issues: Supportive and Palliative care PO112 EFFICACY OF NEPA, THE FIRST COMBINATION ANTIEMETIC AGENT, IN PATIENTS WITH BREAST CANCER RECEIVING ANTHRACYCLINE/ CYCLOPHOSPHAMIDE (AC) OR NON-AC CHEMOTHERAPY Hope Rugo3, Matti Aapro1, Giorgia Rossi2, Giada Rizzi2 1 Clinique de Genolier, Medical Oncology, Genolier, Switzerland; 2Helsinn Healthcare, Clinical Development & Biostatistics, Lugano, Switzerland; 3 University of California San Francisco Comprehensive Cancer Center, Hematology/Oncology, San Francisco, USA Background: Patients with breast cancer (BC) are at high risk for developing chemotherapy-induced nausea and vomiting (CINV) due to the intrinsic emetogenicity of the chemotherapy (often AC-based) and also the predisposing risk factors of young age and female gender. Antiemetic guidelines recommend prophylactic co-administration of an NK1 receptor antagonist (RA), a 5-HT3RA, and dexamethasone (DEX) for these patients. NEPA is an oral fixed combination of a new NK1RA, netupitant (300 mg), and palonosetron (PALO 0.50 mg), a pharmacologically and clinically distinct 5-HT3RA. In a large phase 3 trial, NEPA + DEX was superior to oral PALO + DEX in preventing CINV in patients receiving AC-based chemotherapy (Aapro, Annals Oncology 2014). The objective of this post-hoc analysis was to evaluate the efficacy of NEPA in the subset(s) of patients with BC from this Aapro trial as well as from a separate trial in patients receiving non-AC chemotherapy (Gralla, Annals Oncology 2014). Methods: Data was compiled for the subsets of BC patients receiving NEPA from two randomized, double-blind, pivotal registration trials. Patients in both trials received a single dose of NEPA prior to AC in Study 1 or non-AC based chemotherapy in Study 2. A single dose of oral PALO was a comparator in Study 1. All patients also received oral DEX 12 mg (NEPA-treated) or 20 mg (PALO-treated) on day 1 only. Efficacy endpoints were complete response (CR: no emesis/no rescue medication) and no significant nausea (max <25 mm on 100 mm visual analog scale) rates during the overall phase (0-120h) following chemotherapy. Comparisons between groups in Study 1 were performed using a Cochran-MaentelHaenszel test. Results: 1451 patients with BC were included [AC (Study 1): NEPA N = 708, oral PALO N = 704; non-AC (Study 2): NEPA N = 39] for a total of 6016 cycles. In BC patients receiving AC, NEPA was superior to oral PALO for both overall CR (74% NEPA vs 66% oral PALO, p = 0.001) and no significant nausea (74% NEPA vs 69% oral PALO, p = 0.016) during cycle 1. Continued superiority of NEPA over oral PALO (p < 0.001) was seen in each subsequent cycle (NEPA vs oral PALO: cycle 2 - 80% vs 66%; cycle 3 - 84% vs 70%; cycle 4 – 84% vs 74%). The cycle 1 CR rate for NEPA in the smaller subset of patients receiving non-AC chemotherapy was 85% and the no significant nausea rate was 87%; CR rates were maintained over subsequent cycles (cycles 2-4: 94%, 94%, 100%). Conclusions: NEPA, an oral combination antiemetic targeting two critical pathways associated with CINV, offers a highly effective and convenient option for preventing CINV in BC patients at high emetic risk, receiving either AC or non-AC-based chemotherapy. PR113 COMPARATIVE ASSESSMENT OF ANALGESIC THERAPY IN PATIENTS WITH BREAST CANCER IN THE TERMINAL STAGE Zulaykho Kadirova, Dono Makhamedjanov Tashkent Medical Academy, High Educated Nurse, Tashkent, Uzbekistan Narcotic analgesics is still not lose their significance. However, nonnarcotic drugs began to compete with them. But the effectiveness and duration of narcotic drugs exceed narcotic. It is worth noting that nonnarcotic drugs have a very low degree of addiction and therefore are not included in the list of narcotic substances. Objective: To determine the efficacy and duration of narcotic and narcotic analgesics in patients with breast cancer with bone metastases. Material and Methods: We studied patients with breast cancer with bone metastases. All patients had end-stage cancer, verified on histology. All patients received 2-3 courses of palliative chemotherapy + biphosphonates and were examined at the current level of pain on a 10-point visual analog scale control. We studied three groups of patients. Group 1 consisted of 6 people. In this group for pain, we used morphine 1% -1mg under skin. It was noted that this drug had an inhibitory effect on conditioned reflexes, it depresses the respiratory center, decreased summering ability of central nervous system, decreased excitability of the cough center, and also raised tonus of smooth muscles of internal organs, at the same time weakened peristalsis, which led to the development of constipation. The drug is in effect for 5-7 hours. Group 2 consisted of 7 people. This group was used nalbufen 10 mg intramuscularly. Studies have found that the drug inhibits the central nervous system, has analgesic, sedative, antitussive effect, affects the higher parts of the brain and changes the emotional pain. And also, to a lesser extent than morphine, depressed respiratory center and does not affect the motility of the intestine. The drug is in effect for 6-8 hours. 3rd group was 6 people. We used NSAIDs (ketoprofen) 2 mg intramuscularly. As a result, it was found that the drug is detrimental effect on the rheology of the blood, increased blood clotting time and caused pain in the epigastric region. The drug is in effect for 1-3 hours. Results: Comparing the effect duration from three study groups nalbufen efficiency better than others and there was no serious side effects and withdrawal symptom. The first group of patients after taking the drug at all observed constipation and sharp deterioration of appetite. The first Abstracts / The Breast 24 S3 (2015) S21–S75 and the second group in a blood test no change observed. In group 3 lower efficiency than the others, and in blood changes were observed. Conclusions: From the studies it was found that the terminal stage breast cancer with metastases is preferable to use nalbufen. Since the drug is not addictive, it lasts longer than morphine and NSAIDs and has far fewer side effects than other drugs of the above groups. Patients in the thermal stage, it is not recommended to use NSAIDs as analgesic. PO114 USING OF HEPATOPROTECTORS IN THE DRUG TREATMENT OF PATIENTS WITH ADVANCED BREAST CANCER Jamshid Ibragimov, Doniyor Pulatov National Cancer Research Center, Chemotherapy Department, Tashkent, Uzbekistan Antineoplastic chemotherapy agents are occupying leading positions in frequency and severity of induced hepatotoxic reactions. Purpose: Improve the results of treatment of cancer by selecting adequate hepatoprotectors. Material and Methods: In period of 2012-2014 years in the chemotherapy department of Cancer Research Center of Uzbekistan, were observed 57 patients with advanced breast cancer who underwent neoadjuvant and adjuvant polychemotherapy by TAC regimen. Patients were divided into 3 groups: control group (n = 20) received only polychemotherapy, patients in group 2 (n = 18) during and after the cycle was assigned a combined preparation with hepatoprotective activity of plant origin. In the third group - 19 patients in addition to the cancer drug treatment, the period between cycles, was administered S-ademetionine (Heptral®) intravenously 400 mg 2 times a day for 5 days followed by oral use. Monitoring liver function was carried out by studying the levels of markers of cholestasis syndromes and cytolysis and periodically ultrasound study of structural changes. Results: Signs hepatotoxicity recorded considerable and significantly less in the group receiving S-ademetionine, and its severity was significantly lower than in the other two groups. In 9 (45%) patients of the comparison group and 8 (44.4%) patients in group 2 noted a persistent and progressive increase in transaminases, causing lengthening of the interval and the reduction of dose chemotherapy. In the group receiving S-ademetionine, treatment protocol violations were only 1 (5.2%) cases. It showed a significant reduction such markers of cytolysis and cholestasis of AST and ALT, total bilirubin by the end of treatment with S-ademetionine. ALP and LDH levels also tended to decrease. Conclusion: The obtained data lead to the conclusion a high incidence of drug-HT during chemotherapy in cancer patients. They strongly require corrective cover treatment between cycles by assigning of hepatoprotectors. PO115 THE EMOTIONAL TOLL OF METASTATIC BREAST CANCER ON YOUNG WOMEN Medha Sutliff, Desiree Walker, Michelle Esser, Megan McCann, Jean Rowe Young Survival Coalition, National Programs, New York, USA Background and Methods: Young women (YW) diagnosed with metastatic breast cancer (MBC) face unique concerns. Young Survival Coalition (YSC) is the premier global organization dedicated to critical issues particular to YW and breast cancer. In 2012, YSC engaged in a two year long process called the Research Think Tank (RTT) to determine the most pressing research questions in need of answers. The RTT found that research into MBC in YW was rare and determined that a top research priority was “How can we better meet the psychosocial needs of YW with MBC and their families?”. After identifying this priority, from September 2013 to February 2014 YSC conducted an online survey of women diagnosed with any stage of breast cancer before age of 41, who either had MBC at initial diagnosis or developed it thereafter. S61 Results: Four hundred seventy participants met the inclusion criteria with 360 YW completing the entire survey. Results showed that since their MBC diagnosis, their stress level is worse (31%) or varies (56%), with some days stressful and some not. Emotional wellbeing worsened in 57%. Emotional wellbeing due to MBC was impacted by: anxiety (71%); trouble sleeping (61%); depression (45%); withdrawal from things they once liked to do (31%); and withdrawal from friends (24%). Before their diagnosis, less than one-third had anxiety (28%) or depression (24%). Eighty-six reported that they take time to rest while 14% said “no” with guilt, lack of time, lack of willingness to do so and children cited as causes. Asked if they take time to “do nothing,” 25% said “no,” with similar reasons cited. Eighty-two percent said that anticipatory grief was a topic of importance to them. They said they were grieving: loss of life cut short (86%); leaving spouse or partner (75%); leaving behind kids without mother (67%); and loss of identity (38%). How can these issues be addressed? The survey revealed that connecting with other YW living with MBC to receive support and information is important. Therapy and counseling were also listed as a helpful source of support for emotional issues. Suggestions for what could make finding information and support easier included easy to find on-line information specifically for YW with MBC as well as physician referrals to support such as social workers. Seventy-six percent responded that tools to communicate about their disease and prognosis would be helpful. Conclusion: YW living with MBC are an understudied population in need of psychosocial and emotional support and tools. YSC’s survey sought to understand how to address these issues. Using these survey results, YSC has revised its metastatic navigator and is updating the MBC portion of its website. PO116 THE LAST QUARTER OF A HONEYMOON – A WEDDING’S STORY Jose Pereira1,2, Vasco Fonseca1, Leonor Fernandes1, Margarida Miguens 1, Arturo Botella1, Candida Fonseca 2, Ana Martins1, Luis Campos2, Debora Cardoso1 1 Hospital Sao Francisco Xavier, Oncology Department, Lisbon, Portugal; 2 Hospital Sao Francisco Xavier, Medical Department, Lisbon, Portugal Introduction: According to the International Agency for Research on Cancer, there will be an increase on the occurrence of cancer related diseases, in the coming years. In Portuguese Hospitals there has been a significant increase of the support attendance to patients with cancer. The cancer patients’ growth and the consequent pressure on the Portuguese National Health Service have implied new sceneries and requirements in which health care is concerned. There are, nevertheless, issues where the professionals’ correct approach is not completely defined. One of these situations, uncommon, is the end-of-life wedding. Clinical Case: We present the case of a fifty year old patient, with a triple-negative breast cancer, diagnosed in May 2013. She was treated with a tumorectomy, followed by adjuvant chemotherapy and adjuvant radiotherapy on the breast. Three months after finishing the adjuvant therapeutics she was diagnosed with multiple metastases. The biopsy has confirmed an invasive triple-negative breast carcinoma with high proliferative index. In May 2014, she initiated chemotherapy for metastatic disease. As the patient hadn’t got clinical conditions to perform a specific oncological treatment, a symptomatic palliative therapeutics was undertaken. The week, prior to her passing, the patient got married in São Francisco Xavier Hospital, where she was hospitalized and where she remained until her death. Discussion: The question of one patient, diagnosed with a tumour of very aggressive biology, deciding to get married in her last few weeks of life, has forced us to reflect upon the patients’ needs and priorities, during this stage, and the urge they have to weigh several aspects of their lives in a short period of time. It also implies how important it is the transparency of the communicated information regarding the pathology’s seriousness, keeping at the same time, a sense of hope. The multidisciplinary team had faced the need to approach the situation in all its dimension, managing hopes and emotions, not only from the patient but also from themselves. The wedding ceremony has taken S62 Abstracts / The Breast 24 S3 (2015) S21–S75 place at the hospital, in the presence of family members and staff. The medical doctors who were invited to the wedding had chosen not to participate with the main purpose of keeping the emotional distance that would allow them to make a more rational decision. After the wedding some of the doctors would consider their presence at the ceremony from a different perspective. Conclusion: This case reflects the need of having well prepared and orientated teams, to approach the patient as a whole in her/his final life stage, not only to provide the pharmacological symptomatic relief, but also the emotional comfort, so many times considered as secondary. PO117 CAN WE MAKE A PORTRAIT OF WOMEN WITH INOPERABLE LOCALLY ADVANCED BREAST CANCER? THE EXPERIENCE OF THE BREAST UNIT OF SOUTHERN SWITZERLAND (CSSI) Giacomo Montagna1,2, Gabriella Bianchi-Micheli2, Lorenzo Rossi2,3, Marzia Conti-Beltraminelli2,3, Roberta Decio2, Vilma Ratti3, Thomas Gyr1,2, Olivia Pagani2,3, Francesco Meani1,2 1 Ente Ospedaliero Cantonale, Department of Obstetrics and Gyneacology, Lugano, Switzerland; 2Ente Ospedaliero Cantonale, Breast Unit of Southern Switzerland (CSSI), Lugano, Switzerland; 3Ente Ospedaliero Cantonale, Oncology Institute of Southern Switzerland (IOSI), Bellinzona, Switzerland Introduction: Breast cancer (BC) is the most common cancer in women. Early detection and treatment improvements have both led to a significant decrease in mortality over the last 25 years. Locally advanced BC (LABC) is defined as large operable primary BC (stage IIB, IIIA) and/or inoperable BC (i.e. involving the skin/chest wall and/or with extensive nodal involvement) (stage IIIB, IIIC). Despite the amount of information available through the media and advocacy groups (i.e. Europa Donna), repeated events to raise public awareness (i.e. the Pink Ribbon Campaign) and mammography screening programs, LABC still accounts for 5-10% of all new primary BC diagnoses. Overall, the prognosis of patients with LABC is relatively poor with a 5-year overall survival <50%. Materials and Methods: Between 2008-2014, >1300 patients with a newly diagnosed primary BC have been treated at CSSI. 114 patients (9%) had LABC at diagnosis. We planned to retrospectively investigate the demographic (i.e. age, social and marital status, education level, religious beliefs) and psychosocial characteristics (i.e. BC family history, somatic and psychiatric co-morbidities, use of psychiatric therapy, concomitant chronic diseases, timing of symptom detection and initial symptom interpretation, emotional reactions, family and social interactions) of these patients. A demographic survey and a semi-structured interview (28 items) was specifically developed and submitted by the treating team (gynecologist, psychologist, medical oncologist) to all consenting patients. Aims of the study: With this study we intend to assess the demographic and psychosocial features of women with LABC treated at our institution over the past 6 years and possibly identify factors which led them to delay seeking medical attention. Data are under collection and will be analyzed and ready to be presented by the end of October 2015. We aim at drawing a patient’s profile that could be potentially used to better identify those women who are at higher risk for developing LABC in our geographic area in order to build specific and targeted information and awareness tools. On the long term, we want to evaluate the impact of the mammographic screening program, recently introduced in our canton, on the incidence of LABC. PR118 COMPARISON OF INTEGRATIVE CARE EXPECTATIONS BETWEEN BREAST CANCER PATIENTS AND BREAST ONCOLOGY PHYSICIANS IN AN ETHNICALLY DIVERSE POPULATION Damien Hansra3,4, Jeremy Ramdial1, David Ruiz2,3, Ashwin Mehta4, Eugene Ahn4, Jorge Antunez de Mayolo3 1 Jackson Memorial Hospital, Oncology, Miami, USA; 2Mast Academy, Oncology Clinical Research, Miami, USA; 3Mercy Hospital/Oncology and Radiation Associates, Hematology & Oncology, Miami, USA; 4Sylvester Comprehensive Cancer Center at the University of Miami, Oncology, Miami, USA Purpose: Evidence shows increased patient utilization of various integrative care modalities to manage symptoms and improve quality of life. Measurements of breast cancer patients and physicians’ opinions regarding the importance of integrative care are lacking. We aim to compare how integrative care modalities are values between physicians and patients. Methods: University of Miami IRB obtained. Adult breast cancer patients (pts) and physicians who specialize in breast cancer (MDs) at an academic tertiary care medical center in Miami, Florida were enrolled to complete a survey. Inclusion criteria: adult cancer pts and treating hem/ onc MDs. Exclusion criteria: Pts without breast cancer and non-breast cancer specialist MDs. Demographics include: age, gender, race, and ethnicity. Clinical info included cancer subtype and MD name. Survey had 7 questions assessing opinions on “comprehensive care”, asking “In addition to standard care, it’s important to incorporate/provide” nutrition services, exercise therapy, spiritual/religious counseling, supplement/herbal advice, support groups, music therapy, or other complimentary medicine services (acupuncture, massage, relaxation therapy). Data recorded on a 5 point Likert scale (1 = highly disagree, 2 = disagree, 3 = neutral, 4 = agree, 5 = highly agree) and made into 2 categories (1, 2, 3 = neutral/disagree vs. 4, 5 = agree). Fisher’s exact test with 2 sided p-value used to compare responses between MDs and pts. Results: 909 pts and 55 MDs enrolled from 06/2013-01/2015 with 144 pts and 11 MDs meeting criteria. Mean pts age = 50 with range 26-88 with 2% male and 98% female. 65% of pts were Hispanic vs. 35% non-Hispanic. 78% were white, 6% black, 0% Asian/Pacific Islander, and 16% other. 71% of pts agree spiritual/religious counseling is important to incorporate into cancer care compared to 25% of MDs, p=0.01. Disparities were also seen for supplement/herbal therapies (90% vs. 36% resp., p=0.001), music therapy (63% vs. 11% resp., p=0.003), and “other complementary services” (84% vs. 44% resp., p=0.01). No differences were found for nutritional advice (88% pts vs. 82% MDs, p=0.63), exercise therapy (90% vs. 82% resp., p=0.31), and support groups (75% vs. 75% resp., p=1.00). Conclusion: The majority of adult breast cancer pts seen at a major academic institution feel that it is important to incorporate nutrition advice, exercise therapy, spiritual/religious counseling, supplement/ herbal advice, support groups, music therapy, and other complimentary services as part of their treatment plan. With the exception of support groups, exercise therapies, and nutritional advice, MDs tend to value integrative modalities significantly less than pts. Increased availability and utilization of integrative modalities could improve pts quality of life, and other clinical endpoints. PR119 SENSITIZING PRIMARY HEALTHCARE WORKERS TOWARDS PSYCHOSOCIAL ISSUES OF BREAST-CANCER PATIENTS S. Pramod Health Alert Organisation of India, Health Dpt., Garud colony, Deopur, Dhule, India Introduction: Primary healthcare workers are backbone of rural/tribal areas healthcare-sector must be trained for psycho-social needs of young breast-cancer patients. Abstracts / The Breast 24 S3 (2015) S21–S75 Objectives: To determine percentage of primary healthcare workers [PHCW] who would a) give psycho-social/nursing care during their work in villages. b) refer breast-cancer patients for simple nursing care to specialty centers owing to their apprehensions or lack of confidence, during their practice. c) overcome stigma from society/community d) opt for specialized training to provide supportive care to breast-cancer patients. Methodology: pre-tested questionnaire given to 52 primary-healthcareworkers from rural/tribal centers of India. Objectives was to answer anonymously, give suggestive opinion for modification of their current training program. Data analysed by simple descriptive-statistics. Results: 21% PHCW would provide psycho-social-support; 79% would refer them to specialty centers; 75% feared social ostracism/boycott/ stigma; only 7% showed willingness to undergo special care trainingprogram. Conclusion: Majority of PHCW fear social stigma for associating with young breast-cancer patients leading to unnecessary referral for routine issues like nursing care and psychotherapy support. This will result in difficult access to treatment and avoidable burden on specialty centers. We need to sensitize nursing personal during these issues. ABC3conference must develop agenda on this matter of training in developing nations. Cancer-NGO can play vital role in this. S63 Method: Initially a plan was generated regarding management of an advanced cancer patient in a nodal centre at District Head Quarter. Subsequently every two week a trained social worker attached to nodal centre will follow up and give necessary advice and emotional support to the patients and their families through their registered mobile phone number. Patient’s family were also encouraged to communicate with the team by phone in case of fresh complain and urgency in between. Results: Since initiation in January 2013, 193 cancer patients were contacted by mobile phone every two weeks to enquire about their difficulties. In 76% of the situation trained social workers could give necessary advice by phone regarding management of their physical symptoms. Moreover patient’s family were really overwhelmed by the emotional support offered by the team over phone. Only 24% of cancer patients has to attend the nodal centre for expert advice from palliative care specialists. Conclusion: This novel approach helped: • In providing regular physical and emotional support to the patients and their families. • In significantly reducing the financial and manpower problems of carrying patients to the nodal units. • In improve the quality of life of patients by continuous guidance. More and more team members can take help of this new strategy for better communication and uninterrupted care. PR120 DIFFICULTIES IN PROVIDING PALLIATIVE CARE IN RURAL INDIA (WEST BENGAL) – EXPERIENCE OF AN NGO Clinical Issues: Other topics Aditya Manna MAS Clinic and Hospital, Oncology Dpt., Purba Medinipur, India PO122 Introduction: As in any developing countries state of West Bengal in India has a huge burden of cancer patients in advanced stage coming from rural area where awareness regarding the usefulness of palliative care in rather poor. Objective: Our goal is to give a pain free good quality of life in these advanced stage cancer patients. Objective of this study is to identify the main difficulties in achieving the above goal in a rural village setting in India. Method: Advanced cancer patients in need of palliative care in various villages in of rural India were selected for this study. Their symptoms and managements in that rural surroundings were evaluated by an NGO (under the guidance of a senior palliative care specialist) working in that area. An attempt was made to identify the main obstacles in getting proper palliative care in a rural setting. Results: Pain, fatigue are the main symptoms effecting these patients. In most patients pain and other symptoms control were grossly inadequate due to lack of properly trained manpower in the rural India. However regular homecare visits by a group of social workers were of immense help in the last few months of life. NGO team was well guided by a palliative care specialist. Conclusion: There is a wide gap of trained manpower in this filled in rural areas of India. Dedicated groups from rural area itself need encouragement and proper training, so that difficult symptoms can be managed locally along with necessary social and psychological support to these patients. PR121 TELEPHONIC COMMUNICATION IN PALLIATIVE CARE FOR BETTER MANAGEMENT OF TERMINAL CANCER PATIENTS IN RURAL INDIA – AN NGO BASED APPROACH Aditya Manna MAS Clinic and Hospital, Oncology Department, Purba Medinipur, India Aim: Due to financial incapability and absence of manpower poor families often fail to carry their advanced cancer patients to the nodal centres. This pilot study will explore whether communication by mobile phone can lessen this burden. SODIUM FLUORIDE PET/CT: A SUPERIOR IMAGING MODALITY IN EVALUATION OF OSSEOUS METASTATIC DISEASE Emily Harrold, Jennifer Murphy, Seamus O’Reilly, Kevin O’Reagan Cork University Hospital, Medical Oncology Department, Cork, Ireland Background: Meticulous staging influences treatment decision-making and is predictive of survival. As the armamentarium of chemotherapeutic agents expands the importance of increasingly sensitive diagnostic imaging becomes heightened to ensure appropriate agents are utilised in a sequence that maximises impact. Technetium-99m methylenediphosphonate bone scintigraphy (Tc-99 MDP BS) is currently the imaging modality of choice for diagnosis of bone metastases. However although sensitive it is not specific and is limited in assessment of lytic lesions. Several studies have shown NaF-18 PET/CT to have greater specificity, sensitivity and diagnositic accuracy than Tc-99m MDP BS, MDP SPECT and F-18 FDG PET. Aim: Na-F-18 PET/CT is available in our centre and has been used to identify osseous metastatic disease where variance exists between clinical suspicion and bone scintography or other modalities. We retrospectively reviewed all breast cancer patients who received NaF-18 PET/CT to assess for osseous metastatic disease. Methods: A prospectively maintained database was used to identify all patients who underwent Na-F-18 PET CT between March 2013 and March 2015. We identified twenty breast cancer patients. Baseline clinical characteristics, histological features and receptor status were recorded. The degree of correlation between Na-F 18 PET CT and comparator imaging was assessed. Results: Six patients who had suspicious or equivocal Tc-99 MDP BS had confirmation of osseous metastatic disease with Na-F 18 PET/CT. Seven patients who had equivocal Tc-99 MDP BS had no osseous metastases on Na-F 18 PET/CT. Four patients had confirmation of benign osseous disease by Na-F 18 PET/CT. Two patients who had negative bone scans but in whom another radiological imaging modality had been suggestive of metastatic deposits, had no evidence of disease by Na-F 18 PET/CT. One patient had an indeterminate result on Na F 18 PET CT and biopsy was advised. Conclusion: Management of breast cancer patients is evolving and the integration of increasingly sensitive diagnostic imaging modalities becomes ever more crucial in order to ensure that therapeutic decisions are made in a timely fashion in order to deliver the greatest S64 Abstracts / The Breast 24 S3 (2015) S21–S75 clinical benefit. Confirmation of metastatic disease has prognostic implications but also impacts directly on patient’s quality of life from a symptomatic perspective. Initiation of further chemotherapy, utilization of bisphosphonates and radiation oncology referral depends on this confirmation. One third of our patients had bone disease undetectable on Tc-99 MDP BS. This small case series is suggestive of superiority of Na-F-18 PET/CT compared with Tc-99 MDP BS and where available it should be considered to evaluate for osseous metastatic disease. PR123 PATIENTS’ OWN DECISION ABOUT BECOMING AWARE OF RECURRENCE EARLIER Hiroyuki Ishige Saku Central Hospital Advanced Care Center, Department of Breast Surgery, Saku-shi, Nagano, Japan Background: Follow-up testing after the treatment of breast cancer is not routinely recommended, as it does not have an impact on the patients’ survival. Now that it is seriously related to their liferelated planning to know the fact of recurrence earlier, however, their preference to strategies should be respected. Here, the ratio of several tests performed by their own decision is investigated. Patients and Methods: Breast cancer patients were informed in the written form of the aim of follow-up testing, which was not to improve survival but know distant metastases earlier from January 2012. Then physicians advised them to select tests of their own accord. Two hundred fifty-eight patients who had breast surgery from January 2012 to June 2014 were investigated. They were asked of their own free will to have chest X-ray, laboratory tests at an interval of half a year, and abdominal US and bone scanning at an interval of one year. Results: The ratios of patients who had examinations is 67.0% for chest X-ray, 84.9% for laboratory tests, 43.4% for abdominal US, and 26.5% for bone scanning. Six patients were relapsed. Recurrence was found by themselves for two patients. Three patients had no symptoms and the follow-up tests revealed recurrence. Discussion: Three out of six recurrent patients had no symptoms. Therefore, there is no doubt that follow-up testing can reveal recurrence earlier. I think it is important to have an insight into whether knowing recurrences earlier is meaningful or not for individual patients and into whether they want to know results earlier or not. The reason for a wide range of test performance ratios is thought to be patients’ attitude toward time and cost consumed for each test. More patients may select chest X-ray and laboratory tests for this reason. Patients’ preference must be respected and efficacy, harms and medical economy must also be taken into account with regard to follow-up strategy. Conclusion: When follow-up testing was to be chosen by patients of their own accord, they were more likely to choose low-cost tests. Follow-up strategy must be taken into account from viewpoints other than survival. PR124 RUMINATION AND CANCER DISEASE: A CROSS-SECTIONAL STUDY IN A COHORT OF PATIENTS WITH BREAST AND LUNG CANCER Silvia Riva2,1, Alessandra Gorini2,1, Mark Cropley3, Gabriella Pravettoni1,2 1 European Institute of Oncology, Applied Research Unit for Cognitive and Psychological Science, Milan, Italy; 2Università degli Studi di Milano, Dipartimento di Scienze della Salute, Milan, Italy; 3University of Surrey, School of Psychology, Guilford, United Kingdom Background: The emotional response to a breast cancer (BC) diagnosis has been extensively studied in terms of psychological sequelae of these events and their impact on patient’s Health-related Quality of Life (HRQL). However, the psychological process of rumination has not been fully studied in BC literature. Rumination is the compulsively focused attention on the symptoms of one’s distress, and on its possible causes and it is often associated to a traumatic experience. The diagnosis of BC often results in rumination processes, such as appraisals of harm/loss, intrusive beliefs and automatic thoughts. Aim: Firstly, we aimed at evaluating the presence of ruminating in patients who faced the traumatic experience of a diagnosis of a BC. Secondly, we aimed at comparing rumination in BC patients VS lung cancer (LC) patients. Thirdly, we investigated which psycho-social variables could affect rumination among perception of the disease, coping strategies, social support and quality of sleep. Results: Ninety-eight (14 M, 84 F) of 100 patients (Mean age=56, SD: 10,72; 33–84 years) completed the questionnaires. Sixty-six patients (67.3%) had a breast cancer while 29 (29.6%) were diagnosed with a lung cancer. Rumination related with cancer, was observed in 50.3% of patients with BC and in 46.1% patients with LC. Even no significant statistical difference occurred between the two groups, BC patients have, in mean, more rumination than LC patients. Rumination was highly negatively correlated with the quality of sleep (r=0.369, p=0.000) and positively correlated with the perception of an individual responsibility (causes) in having a cancer (r=0.232, p=0.027). Discussion: Rumination is a key consideration in psychological responses of women diagnosed with BC and it is significantly associated with the representation of the disease’s causes and quality of sleep. These findings may inform development of therapeutic intervention programs aimed at decreasing cancer patients’ rumination levels, which may be correlated with higher HRQL and better adjustment. The present study, which examined patients who have just been diagnosed with a cancer, may enrich existing studies on the effect of a first diagnosis and emotional outcomes. PR125 SOME PATTERNS OF BREAST CANCER EPIDEMIOLOGY Nanuli Ninashvili2, Mikheil Shavdia1,3 1 Palliative Care Clinic, Cancer Prevention Center, Tbilisi, Georgia; 2State Medical University, Public Health Department, Tbilisi, Georgia; 3Tbilisi State Medical University, Oncology Department, Tbilisi, Georgia Background: Breast cancer is one of the serious public health concerns in the country. It presented an interest to study epidemiology of breast cancer to make appropriate changes in control and preventive measures. Material and Methods: Descriptive epidemiological study was conducted on the basis of the population-based cancer registry for over the past decade period. Of 35 899 subjects with breast cancer 3 500 were selected by randomly. Statistical methods were applied to the results for significance. Results: Breast cancer ranked first in the mortality structure of female population. The most vulnerable ages were 30-44 and 50-54. After the age of 65 risk of breast cancer was decreasing. It was the lowest in the age group of 70-80. Annual disease specific mortality rate constituted 48 per 100000 female population. Almost every third case of breast cancer was detected at advanced (IV- incurable) stage. 93% of breast cancer cases were diagnosed in secondary health care services. The vast majority of advanced breast cancer cases were from rural areas of the country. Conclusions: 1. Breast cancer is a leading cause of mortality in female population. It is likely to be the primary cause of early female mortality. 2. The vast majority of the cases are detected at advanced incurable stage. Recommendation: Although breast cancer screening program is in practice in the capital and the big cities of the country, it should be extended and expanded throughout the country. Abstracts / The Breast 24 S3 (2015) S21–S75 PR126 ACCESS TO CARE FOR ADVANCED BREAST CANCER IN MIDDLE-INCOME COUNTRY: EXAMPLE OF MOROCCO Narjiss Berrada, Mrabti Hind, Mamouche Fouzia, Ettahri Hamza, Layachi Mohammed, Raiss Hanane, Elomrani Fadoua, Ouzine Imane, Elghissassi Ibrahim, Boutayeb Saber, Errihani Hassan National Institute of Oncology, Medical Oncology Dpt., Rabat, Morocco Background: Breast cancer is a real public health problem in middleincome countries. Its incidence is increasing in developing countries. Disease is often diagnosed at late stage due to a lack of early detection and access to treatment. Survival is worse. In addition, these countries had limit resource to face to this expensive and complex long term disease as well as their public health care is not adapted to the needs generated by this escalating disease. Also, there is a different cultural, religious and social perception of the disease. So access to care needs to be adapted to each region. The purpose of this work was to describe the current situation in the management of advanced breast cancer and to identify the main challenges in Morocco. Materials and Methods: We first realized a review of data available in pubmed or presented in local meeting then we realized a survey among 25 medical oncologists working in different centers about their practices. Results: According to Registries, advanced stage represent 7 to 14% at first diagnosis and median age is 42 years old. Metastatic breast cancers represent approximately 1400 case per years. 50% of patient are premenopausal. The management of these tumors is done by different actors both in the private and public sectors. There are 12 private clinic, 8 of them are localized in Rabat or Casablanca. Concerning public system there are 2 department of medical oncology in teaching hospitals (Fes and Oujda), the National Institute of Oncology is depending of the University Hospital of Rabat. There are only 3 functional regional center. The Princess Lalla Salma Foundation- Prevention and treatment of cancer- is currently building new centers. Interdisciplinary team meetings are available in 83% of centers. 33.5% of patients have insurance, the others have gouvernement insurance or must pay for them self. The Princess Foundation made important drug donations for the public hospital. Chemotherapies are available in all the hospital. New endocrine therapy and target therapy are available only in few centers. The estimation of the cost of treatment (without pertuzumab, TDM1, fulvestrant and everolimus) is 35.058 Euro per patient at public hospital. No data are available from patient treated at private clinics. 75% of oncologists adhere to international guidelines (55% to NCCN guidelines, 37% to ABC consensus). 35% of oncologits remain informed by internet. Conclusion: The management of advanced breast cancer in Morocco has evolved in recent years. The main challenge in the future will be the continuous formation of oncologists and the availability of news target therapies. PR127 CHANGES OF STATISTICS OF BREAST CANCER IN UKRAINE DURING THE PERIOD OF 2003-2013 Liliya Zrelykh Cherkassy Regional Oncology Center, Regional Oncochemotherapy Center, Cherkassy, Ukraine Introduction: Breast cancer (BC) is a very big problem in the world, especially in developing countries due to its leading positions in the structure of the incidence and mortality among other cancers in female population. Materials and Methods: Analysis of data of National cancer registry of Ukraine, regional cancer registries. Results: Number of new BC cases in 2003 in Ukraine was 15787 (men - 134, women - 15653), in 2013 - 16704 (men - 127, women 16577). So number of BC cases in women increased on 924 cases in S65 2013 in comparison with 2003. Number of deaths from BC registered in 2003 was 7921 (men - 52, women - 7869), in 2013 - 7783 (men - 74, women - 7709). Mortality rate decreased on 138 in total population. The age-standardised incidence rate of BC in 2013 in comparison with 2003 increased by 13,4% and age-standardised mortality rate of BC during the period 2003-2013 increased by 0,6%. Between 2003 and 2013 the age-standardised incidence rate of BC in women increased from 54,1 to 62,3 (by 13,16%) and age-standardised mortality rate of BC decreased from 26,4 to 26,3 ( by 0,38%). Stage distribution of new BC cases (according to TNM) in 2003 was: I-II - 70,8%; III - 18,4%; IV - 8,6%. In 2013 such distribution was: I-II - 77,1%; III - 13,6%; IV - 7,1%. So in 2013 in comparison with 2003 the frequency rate of I-II stages increased by 6,3% while frequency rate of advanced breast cancer (III-IV stages) decreased by 6,3%. Patients with BC who received special treatment in 2003 were 75,4%, in 2013 - 82,8% (increased by 7,4%). Microscopically verified BC cases in 2003 were 85,6%, in 2013 - 92,4% (increased by 6,8%). Patients with BC detected during the preventive examination in 2003 were 37,7%, in 2013 - 53,7% (increased by 16%). Conclusion: The main problems of Ukrainian oncological service are the lack of material and technical base, insufficient funding, absence of medical insurance, ecological problems (the consequences of the Chernobyl disaster). Although the incidence of BC cases increased in 2013 in comparison with 2003, the mortality rate of this disease remained almost at the same level. Patients with BC began to be identified at earlier stages due to the implementation of screening programs, improvement of education of women and their greater adherence to treatment. During the period of 2003-2013 increased the number of patients with BC detected during the preventive examination, those with microscopically verified BC and those who received special treatment. Despite large number of problems there is some positive tendency in breast cancer statistics in Ukraine in 2013 compared with 2003. Basic and Translational Research OR128 CTL AND IGG RESPONSE TO TUMOR-ASSOCIATED ANTIGENS AS PREDICTIVE FACTORS OF THERAPEUTIC PEPTIDE VACCINATION FOR PATIENTS WITH METASTATIC RECURRENT BREAST CANCER Uhi Toh2, Mina Okabe2, Nobutaka Iwakuma2, Mai Mishima2, Shigeki Shijijo1, Akira Yamada1, Kyogo Itoh1, Yoshito Akagi2 1 Kurume University, Cancer Vaccine Center, Kurume, Japan; 2Kurume University School of Medicine, Department of Surgery, Kurume, Japan We have developed a novel regimen of personalized peptide vaccination (PPV), and conducted a phase II trial of PPV for metastatic recurrent breast cancer (mrBC) patients to investigate the feasibility of PPV for mrBC, in which vaccine antigens are selected and administered from a pool of 31 different peptide candidates based on the pre-existing IgG responses specific to peptides before vaccination. In this study, the relation of between immune response and clinical outcome was analyzed. Methods: 79 patients with mrBC who had metastases and had failed standard therapy were enrolled in this study. A maximum of 4 human leukocyte antigen (HLA)-matched peptides showing higher peptidespecific IgG responses in pre-vaccination plasma were selected from 31 pooled peptide candidates applicable for the 4 HLA-IA phenotypes (HLA-A2, -A24, or -A26 types, or HLA-A3 supertypes), and were subcutaneously administered weekly for 6 weeks and bi-weekly thereafter. Measurement of peptide-specific cytotoxic T lymphocyte (CTL) and IgG responses were conducted before and after vaccination. Levels of IgG reactive to each of the 31 peptides in the pre- and postvaccination plasma were measured using LUMINEX system at every 6 vaccination. Peptide-specific CTL responses were examined by IFN- ELISPOT. Results: Peptide-specific immune boosting was observed in the majority of patients, irrespective of the breast cancer subtypes. The S66 Abstracts / The Breast 24 S3 (2015) S21–S75 median progression-free survival time and median overall survival time of mrTNBC patients were 7.5 and 11.1 months, while those of luminal/ HER2-negative patients were 12.2 and 26.5 months, and those of HER2positive patients were 4.5 and 14.9 months, respectively. Peptidespecific IgG responses after 6 or 12 vaccinations were augmented in 7/15 (46.7%) or 9/10 (90%) patients with mrTNBC. Such augmentation was seen in 28/40 (70.0%) or 29/31 (93.5%) patients in the luminal/ HER2-negative group, and in 16/18 (88.9%) or 11/11 (100%) patients of the HER2-positive group, respectively. Cellular immune responses to vaccinated peptides were assessed by IFN- ELISPOT assay. Antigenspecific CTL responses were detectable in 17/66 (25.8%) patients before vaccination. IgG boosting was a significant prognostic factor for OS and PFS in HER2-positive patients (p = 0.001 and 0.0001, respectively) and CTL boosting was suggested to be a potential prognostic factor for OS but not for PFS in mrTNBC patients, (mrTNBC, p = 0.053 and 0.345 respectively). Conclusions: PPV could be feasible for rmBC patients, and immune responses, IgG and CTL boosting were suggested to be a potential prognostic factor for OS and PFS in mrBC patients, particularly for patients with HER2-positive and TNBC. BP129 INSULIN RESISTANCE (IR) AND PROGNOSIS OF METASTATIC BREAST CANCER (MBC) PATIENTS Nicoletta Provinciali4, Matteo Puntoni4, Oriana Nanni6, Paolo Bruzzi5, Andrea DeCensi4, Laura Paleari4, Andrea Freschi2, Laura Amaducci3, Alessandra Bologna1, Lorenzo Gianni7, Andrea Rocca6, Dino Amadori6, Alessandra Gennari4 1 Arcispedale “S. Maria Nuova” IRCCS, Medical Oncology Unit, Reggio Emilia, Italy; 2Centro di Riferimento Oncologico, Oncologia Medica C, Aviano, Italy; 3Degli Infermi Hospital, Oncology Unit, Faenza, Italy; 4E.O. Ospedali Galliera, Division of Medical Oncology, Genoa, Italy; 5IRCCS Azienda Ospedaliera Universitaria San Martino – Ist - Istituto Nazionale Per La Ricerca Sul Cancro, Clinical Epidemiology, Genoa, Italy; 6IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Unit of Biostatistics and Clinical Trials, Meldola, Italy; 7Ospedale Infermi, Division of Oncology, Rimini, Italy Background: Higher insulin levels have been associated with a worse prognosis in early BC patients. The effect of higher insulin levels on MBC prognosis has not been explored so far. The aim of this study was to evaluate the influence of IR on the prognosis of HER2 negative, nondiabetic, MBC patients receiving first line CT. Methods: The relationship between IR, identified by HOMA index >2.5 (fasting glucose [mmol/L] × insulin [mU/L]/22.5), and progression free (PFS) or overall survival (OS) was assessed in 125 MBC patients enrolled in a clinical trial of first line CT with non-pegylated liposomal doxorubicin 60 mg/sqm plus cyclophosphamide 600 mg/sqm Q21 days. PFS and OS were calculated by Kaplan-Meier estimation; multivariate. Cox analysis was performed adjusting for age, PS, endocrine status, metastatic site and BMI. Results: Information on patient’s IR status at baseline was available on 116 women. Median follow up was 17.9 months (IQR 1–49). Overall, 46.95% patients were classified as insulin resistant (HOMA >2.5), 40.51% were overweight (BMI 25–30) and 16.37% were obese (BMI >30). Median age was 60 years (range 36–86); PS was 0 in 74.13% of the patients. Endocrine status was positive in 75.08% and visceral disease was present in 65.79%. Overall, median PFS was 10 months (IQR 8.5–12.8): Median PFS was 11.5 months (IQR 9.6–14.6) in patients with HOMA index ≤2.5 and 8.5 months (IQR 5.7–12.4), in patients with HOMA index >2.5; HR = 1.332 (95% CI: 1.01–3.18, p = 0.04). By multivariate analysis, after adjustment for age, PS, endocrine status, visceral disease and BMI, a statistically significant higher risk of disease progression was detected in patients with HOMA Index >2.5 (HR = 2.28; 95%CI: 1.06–4.89, p = 0.035). Conclusions: In this study IR, indicated by an HOMA Index >2.5, was associated with a significantly worse prognosis; after adjusting for other acknowledged prognostic factors, the IR status together with the ER status, were the only two to maintain their adverse prognostic effect. These data suggest that host metabolic status might influence the prognosis of MBC treated with CT and therefore additional alternative strategies, targeting host metabolism, should be considered in this unfavorable subset of patients. PO130 CLINICAL UTILITY OF THE EXPRESSION OF HER3, HER4, PTEN AND IGF1R IN HER2-POSITIVE ADVANCED OR METASTATIC BREAST CANCER Hiroki Ito, Takayuki Ueno, Hirotsugu Isaka, Kaisuke Miyamoto, Shigeru Imoto Kyorin University Hospital, Breast Surgery Department, Tokyo, Japan Background: Overexpression of HER3, HER4, PTEN and IGF1R has been reported in HER2-positive advanced or metastatic breast cancer. To assess the clinical utility of these biomarkers, the relationship between their expression and clinicopathological factors was analyzed in HER2positive advanced or metastatic breast cancer patients treated with first-line treatment of trastuzumab and vinorelbine. Materials and Methods: Fifteen cases registered in the phase 2 study were examined. Tissue specimens of primary tumor were used for immunohistochemistry with anti-HER3 (DAK-H3-IC; Dako), anti-HER4 (HFR1; Abcam), anti-PTEN (138G6; Cell Signaling), and IGF1 receptor antibody (3027; Cell Signaling). Staining intensity was scored as 0, 1, 2, and 3 in cellular membrane for HER3, HER4, IGF1R and in cytoplasm for PTEN. Score 2 or 3 was designated as overexpression and positive. Objective response rate (ORR) was determined by RECIST ver.1.1. Time to treatment failure (TTF) and overall survival (OS) was calculated by Kaplan-Meier estimates. Statistical analysis was performed using JMP software version11 (SAS institute Japan). Results: The median follow-up was 23 months (range 9-50 months). The median age was 56 years (range 35-67 years). ORR was 60%: CR in 1 case, PR in 8, SD in 3, and PD in 3. Overexpression of HER3, HER4, PTEN, and IGF1R was observed in 27%, 7%, 13%, and 13% of cases, respectively. HER3-positive cases showed a higher percentage of ER positivity than HER3-negative cases (50% vs 18%). There were no tumor progressions in HER3 positive tumor. HER3-positive cases showed a tendency to have a prolonged OS compared with HER3-negative cases (two year survival rate: 100% vs 65%). Due to a small sample size, statistical significance was not calculated. There was no relationship between overexpression of HER4, PTEN and IGF1R and clinical response. Conclusion: HER3 overexpression might be a favorable predictive marker of trastuzumab-containing regimen in HER2-positive advanced or metastatic breast cancer. A larger study is needed to confirm our results. PO131 HETEROGENEITY IN THE EXPRESSION OF HORMONE RECEPTORS AND HER2 BETWEEN THE PRIMARY BREAST CANCER AND PULMONARY METASTASIS Masako Sato NHO Hokkaido Cancer Center, Breast Surgery, Sapporo, Hokkaido, Japan Introduction: We build a treatment strategy in reference to estrogen receptor (ER), and progesterone receptor (PgR) and HER2 status for metastatic breast cancer. However, discordance in hormone receptors and HER2 status has been occasionally observed between primary and metastatic tumors. Recently, re-biopsy of metastatic tumors is recommended to determine the appropriate treatment of metastatic breast cancer. Patients and Methods: We identified 13 breast cancer patients with lung metastases which histologically diagnosed by video-assisted thoracic surgery (VATS) in postoperative follow-up between 2000 and 2011. We have investigated the discordance of hormone receptors and HER2 status between primary and pulmonary tumors, and the influence of treatment and prognosis. Abstracts / The Breast 24 S3 (2015) S21–S75 Results: The median age of primary breast cancer diagnosis was 53 years (range, 32 to 67). One patient had clinical stage I disease, 6 patients were stage IIA, 5 patients were stage IIB, one patient was stage IIIA. The median interval from primary breast cancer diagnosis to pulmonary metastasis diagnosis was 75 months. The concordance rate of ER status between primary and pulmonary metastatic tumors was 77.1%, PgR status was 62.0%, HER2 status was 100% and there was no negative-to-positive change. The median survival time after pulmonary metastasis of 3 patients who had positive-to-negative in ER status was 16 months. 7 patients of 8 patients who had ER positive in also primary and pulmonary metastatic tumors had started endocrine therapy; the median survival time after pulmonary metastasis of the 7 patients was 54 months. While the median survival time after pulmonary metastasis of the patients with which PgR status accorded was 64 months, the patients with which PgR status discorded was 46 months. Conclusion: The patients who have positive-to-negative in ER status are worse prognosis, and a possibility that an endocrine therapy is invalid is considered. However, the patients who have ER positive in also primary and pulmonary metastatic tumors can continue an endocrine therapy for long time, and obtain a long prognosis. The biopsy of pulmonary metastatic lesion will bring a prognosis prediction and sometimes help the decision of treatment strategy. PO132 APOPTOTIC ACTIVITIES OF RECOMBINANT CELL SURFACE RECEPTOR FAS WITHIN TUMOR MICROENVIRONMENT OF BREAST CARCINOMA Seham Abdel-Moneim Abou-Shousha1, Soheir Rizk Demian1, Amal Sobhy El Sedafi2, Medhat M. Anwar3, Osama Mohamed Nasr1 1 Medical Research Institute University of Alexandria, Immunology Department, Alexandria, Egypt; 2Medical Research Institute University of Alexandria, Pathology Department, Alexandria, Egypt; 3Medical Research Institute University of Alexandria, Experimental and Clinical Surgery Department, Alexandria, Egypt Fas (CD95 or APO-1) is a cell surface molecule that initiats the extrinsic apoptotic pathway to its own bearing cell (target cell) upon ligation with its specific receptor; Fas ligand (FasL or CD178) expressed on the killer cell surface such as cT lymphocyte. Insufficient apoptosis due to either lack of proapoptotic stimuli or disturbances of the apoptotic pathway is stongly associated with the development of breast cancers. In order to avoid killing via this way or even fight back the immune system, tumor cells exhibit down-regulation of Fas and up -regulation of FasL expression. Thus, we aimed in this study to evaluate the apoptotic/antiapoptotic effect of Fas on tumor cells in intact microenvironment of breast carcinoma. Method: Fresh tumor and tumor distant breast tissue samples were obtained immediately after breast resection from 20 Egyptian female patients who subjected to modified radical mastectomy for pathologically proved breast carcinoma. Samples were cultured in absence and presence of appropriate concentrations of Fas molecules for 24 hours. Apoptosis levels were then measured immunohistochemicaly using caspase3 staining reaction method. Results: Apoptosis levels in Fas-treated tissues either tumor or normal/ benign were significantly higher than those of untreated ones (P<0.001, P<0.005 respectively). Apoptosis level in Fas treated tumor tissue was found to be higher than that in Fas treated normal/benign ones (P<0.001). Conclusion: Recombinant Fas has significant selective apoptotic activities for breast cancer cells within the tumor microenvironment emerging it as a promising immunotherapeutic agent for breast cancer. Funding: this work was supported by the Alexandria Research Enhancement Program (ALEX REP), being a part of the project titled: A new approach to breast cancer immunotherapy: Induction of immune mediated tumor cell apoptosis and anti-angiogenesis, Grant number: HLTH-09 (Prof. Seham A. Abou Shousha, PI). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. S67 PO133 DIFFERENTIAL EXPRESSION OF PLASMA MEMBRANE PROTEINS IN INFLAMMATORY BREAST CANCER VIA STABLE ISOTOPE LABELED AMINO ACIDS IN CULTURE (SILAC) Michelle M. Martinez-Montemayor4, Ivette J. Suarez-Arroyo4, Yismeilin Feliz-Mosquea1, Juliana Perez-Laspiur5, Rezina Arju2, Shah Giashuddin3, Robert J. Schneider2, Luis A. Cubano4 1 Inter American University, Department of Biology, Bayamon, Puerto Rico – USA; 2NYU School of Medicine, Department of Microbiology and Department of Radiation Oncology, New York, USA; 3The Brooklyn Hospital Center, Department of Pathology, Brooklyn, USA; 4Universidad Central del Caribe School of Medicine, Department of Biochemistry, Bayamon, Puerto Rico – USA; 5University of Puerto Rico-Medical Sciences Campus, RCMI Translational Proteomics Center, San Juan, Puerto Rico - USA Inflammatory breast cancer (IBC) is the most lethal and rare form of breast cancer with a survival rate of <5% in 5y. IBC’s clinical presentation is associated with tumor emboli, which are non-adherent cell clusters that invade the dermal lymphatics overlying the breast, causing an inflammatory phenotype. IBC cell lines and tumors overexpress plasma membrane proteins such as E-cadherin and epidermal growth factor receptor (EGFR), which are associated with maintaining tumor emboli integrity, increased tumor growth, and metastasis. Additionally, more than 50% of cancer drugs target membrane proteins due to their role in cell-to-cell interaction and signal transduction, which is vital for tumor progression in IBC. This led us to hypothesize that there might be a differentially expressed plasma membrane proteome in IBC cells. Herein, we characterized the IBC cell membrane proteome by culturing non-cancerous mammary epithelial (MCF10A) and IBC cells (SUM149) with light or heavy stable isotopes of amino acids (SILAC), respectively. We identified and quantified the expression of 640 proteins by liquid chromatography tandem mass spectrometry. 448 proteins displayed an expression change ≥ 2.5-fold of which 447 were up-regulated and 1 was down-regulated in IBC cells. Validation of 9 of the up-regulated proteins [Metadherin (MTDH), Complement Component 1 Q Subcomponent Binding Protein (C1QBP), Melanoma Cell Adhesion Molecule (MCAM), Flotilin-1, Integrin Beta 5 (ITG5), L1 Cell Adhesion Molecule (L1CAM), Macrophage Stimulating 1 Receptor (C-Met-Related Tyrosine Kinase) (RON), Plasminogen Receptor C-terminal Lysine Transmembrane Protein (PLGRKT), Secretory Carrier Membrane Protein 3 (SCAMP3)] was achieved via immunoblotting in IBC cell lines. Also IHC in IBC, IDC or non-cancerous breast tissue was performed to detect expression and localization of 7 proteins. We confirmed increased expression of ITG5 and MCAM in KPL-4 and SUM149 IBC cells. Moreover, 14% of IBC tissues show SCAMP3 membrane expression, an effect not seen in IDC or non-cancerous tissue. Both MCAM and L1CAM show differential expression in tumor tissue, while MTDH and RON display localization changes depending on tumor type. Future analyses include correlations with patient survival, age at diagnosis, TNM stage, recurrence, and metastasis. This study provides insight into the specialized IBC membrane proteome with the potential to identify novel therapeutic targets for this intractable disease. This project was sponsored by NIH/NCI #1F31CA174307 to ISA, Title V PPOHA US Department of Education #P031M105050 to UCC, NIH/RCMI #5G12RR003035 and #8G12MD007583 to UCC, NIH/RCMI Translational Proteomics Center #8G12MD007600 to UPR-MSC, NIH/INBRE #5P20RR016470 to UPR/UCC and NIH/NIGMS #1SC3GM111171 to MMM. PO134 ANALYSIS OF PRIMARY BREAST CANCER (BC) EXPRESSION OF PROGRAMMED CELL DEATH 1 (PD-1) RECEPTOR AND PROGRAMMED DEATH LIGAND 1 (PD-L1) TO DETERMINE ASSOCIATIONS WITH CLINICAL CHARACTERISTICS AND OUTCOMES Neelima Vidula3, Christina Yau1, Andrei Goga2, Hope S. Rugo2,3 1 Buck Institute for Age Research, Buck Institute for Age Research, California, USA; 2University of California, San Francisco, Helen Diller S68 Abstracts / The Breast 24 S3 (2015) S21–S75 Family Comprehensive Cancer Center, San Francisco, CA, USA; 3University of California, San Francisco, Hematology/Oncology Department, San Francisco, CA, USA Background: Antitumor immunity may be dampened by the interaction of the PD-1 receptor on tumor infiltrating lymphocytes and PD-L1 on tumor cells. Two recent phase I trials have suggested efficacy of anti-PD-1/PD-L1 antibodies in triple negative (TN) BC. In this study, we investigated associations between primary BC PD-1 and PD-L1 expression, clinical characteristics, and patient outcomes in publically available databases. Methods: We evaluated PD-1 and PD-L1 expression using microarray data from the neoadjuvant I-SPY 1 study (n = 149). Associations with clinical features and chemotherapy response were assessed by KruskalWallis and Wilcoxon rank sum tests, respectively. Recurrence free survival (RFS) associations were assessed by the Cox proportional hazard model. Pearson correlations between PD-1 and expression of PD-L1, HAVCR2, STAT5A, FOXP3, MYC, PGR, and ESR1 were determined in I-SPY 1 and 2 other datasets: METABRIC (n = 1992) and TCGA (n = 817). Results: In I-SPY 1, PD-1 expression was significantly higher in HER2+ and TNBC (p = 0.003), and in grade 2/3 tumors (p = 0.043); this association was also seen in METABRIC. PD-1 expression was associated with pathologic complete response (p = 0.006), but this correlation did not remain significant on subtype correction. PD-1 was not associated with tumor stage, nodal status, lymphovascular invasion or RFS. While PD-L1 did not correlate with tumor features, patients with PD-L1 expression in the lowest quintile had worse RFS, even after subtype adjustment (HR 2.33, p = 0.01). In all 3 datasets, PD-1 significantly correlated with PD-L1, HAVCR2, and STAT5A, and inversely with ESR1. In TCGA and METABRIC, a significant inverse correlation of PD-1 with PGR was noted. In the TN subset of TCGA and METABRIC, PD-1 significantly correlated with PD-L1, HAVCR2, and STAT5A. In TCGA and METABRIC, PD-L1 significantly correlated with HAVCR2 and STAT5A, and this was also seen in the TN subset. In TCGA alone, PD-1 and PD-L1 significantly correlated with FOXP3, and PD-1 with MYC. Conclusions: PD-1 expression is higher in TN and other aggressive BC subtypes. PD-1 and PD-L1 correlate with immune related genes HAVCR2 and STAT5A. Low PD-L1 expression may be an adverse prognostic factor. Trials are underway to investigate the activity of anti-PD-1/PD-L1 antibodies in TNBC and to elucidate markers of response. PO135 AT A GLANCE THE BRCAS EPIGENETIC STUDY IN PADANG, WEST SUMATERA, INDONESIA Wirsma Arif Harahap1, Dessy Arisanty2,Daan Khambri1,Yanwirasti3, Sofia Mubarikha4 1 Medical Faculty Andalas University/Dr. M. Djamil Hospital, Department of Surgery, Padang West Sumatera, Indonesia; 2Andalas University, Dept of Biochemistry, Padang West Sumatera, Indonesia; 3Medical Faculty Andalas University, Dept. of Biomedical Science, Padang West Sumatera, Indonesia; 4 Faculty of Medicine GMU, Molecular Biology Laboratory, Yogyakarta, Indonesia Background: Sporadic breast carcinoma is the most common cancer among premenopausal women in Padang. There are differences of risk factors and tumor characteristics compared with Caucasian patients such as young age, lactation, multiparity etc. It was assumed that promoter methylationin BRCA1 plays a role in this differences. Materials and Methods: This study is a descriptive analytic study aimed to describe the incidence of promoter methylation in the BRCA1 gene in sporadic premenopausal breast cancer patients in Padang. This research used methylation with bisulfate PCR technique method in the BRCA1 promoter in 60 sporadic premenopausal breast cancer patients at M Djamil Hospital Padang. Stage, tumor grading, mitotic index and immunohistochemical examination (Er, Pr, HER2, Ki67) are examined prognostic factor. Data are analyzed using Chi-Square test. Results: 60 breast cancer patients, 23.3% are stage II, 66.7% are stage III and 10% are stage IV. Cancer subtypes were luminal A in 12 patients (20%), luminal B in 16 patients (26.7%), HER2 in 10 patients (16.7%) and TNBC in 22 patients (36.7%). Methylation in cancer tissue was found in 39 patients (65%) where 32 patients with advanced stage (82.1%). The result of Chi-Square test found a significant association between methylation of stage (p=0.000) and Ki67 (p=0.000). There was no significant association between methylation of ER (p=0.454), PR (p=0.082), HER-2 (p=2.359). Conclusion: Most patients came for treatment at advanced stage. The frequency of methylation in the promoter gene BRCA1 in sporadic premenopausal by 65% greater than literature reports. Methylation associated with a high degree of proliferation (Ki67>14%) and advanced stage. Breast cancer with promoter methylation in the BRCA1 gene have a worse prognosis. Further research is needed to study the clinical impact of antimethylation in patients with breast cancer with BRCA1 promoter methylation. PR136 PREDICTIVE VALUE OF MRNA EXPRESSION OF TUBIII GENE IN THE TREATMENT OF LOCALLY ADVANCED BREAST CANCER Tatiana Semiglazova2, Petr Krivorotko3, Ekaterina Busko4, Sergey Novikov4, Veronika Klimenko2, Elena Turkevich5, Anna Belyaeva6, Vladislav Semiglazov1, Evgeniy Imyanitov7, Vladimir Semiglazov3 1 1st Saint-Petersburg State Medical University named after I.P. Pavlov, Oncology, St. Petersburg, Russian Federation; 2N.N. Petrov Research Institute of Oncology, Innovative therapy, St. Petersburg, Russian Federation; 3N.N. Petrov Research Institute of Oncology, Breast cancer, St. Petersburg, Russian Federation; 4N.N. Petrov Research Institute of Oncology, Radiology diagnostics, St. Petersburg, Russian Federation; 5N.N. Petrov Research Institute of Oncology, Pathology, St. Petersburg, Russian Federation; 6N.N. Petrov Research Institute of Oncology, Abdominal oncology, St. Petersburg, Russian Federation; 7N.N. Petrov Research Institute of Oncology, Molecular oncology, St. Petersburg, Russian Federation Background: The most effective drugs in breast cancer treatment are taxanes and anthracycline antibiotics. Knowledge of molecular genetics predictive characteristics of the tumor can help not only in the choice of cytostatic agent, but also to avoid the risk of side effects from obviously ineffective therapy. Methods: Patients with locally advanced breast cancer received by randomization in neoadjuvant taxane-based regimens TAC (“docetaxel 75 mg/m2 + doxorubicin 50 mg/m2 + cyclophosphamide 500 mg/m2”) or TC (“docetaxel 75 mg/m2 and cyclophosphamide 500 mg/m2”). Predictive value of the expression of mRNA of the gene -tubulin class III (TUBIII), as a marker of tumor sensitivity to taxanes, was examined in 140 patients with locally advanced breast cancer. Depending on the expression of TUBIII tumors patients were formed in two subgroups: with low - 61 (43.6%) and high expression - 52 (49.5%). Detection of mRNA expression of the gene TUBIII was carried by semiquantitative polymerase chain reaction (PCR) in real time using a TaqMan-probes. Pathologic response of the tumor and the lymph nodes on taxanecontaining neoadjuvant chemotherapy was evaluated by a scale MillerPayne. Results: Pathologic complete response (pCR) in patients with low expression TUBIII (n = 61) was registered in 19 patients (24.1%; 95% CI: 15,2-34,2), and in the high expression group TUBIII pCR was not registered (p <0.005). A similar correlation between low expression of TUBIII and efficacy obtained by the intergroup analysis of TAC/TC groups. The sensitivity, specificity, overall accuracy, and predictive value of positive and negative results of TUBIII low expression were 94.7%, 50.4%, 56.4%, 23.1% and 98.4%, respectively. At the same time in patients with low expression of the gene TUBIII in tumor before chemotherapy it was marked improvement of 2-year disease-free survival compared with patients whose TUBIII gene expression was high (80.3% vs. 51.9%, p<0.05). Conclusions: Thus, according to the study, low mRNA expression of the gene -tubulin class III in breast cancer tissue can be considered as an important sign of the effectiveness of taxane-containing chemotherapy. Abstracts / The Breast 24 S3 (2015) S21–S75 PR137 CONTRADICTORIES IN VITAMIN D SUPPLEMENTATION ON GENE EXPRESSION OF MICRORNAS INVOLVING IN BREAST CARCINOGENESIS Soraiya Ebrahimpour Koujan1, Faezeh Asghari2, Ainaz Mihanfar3 1 Tehran University of Medical Sciences, Schools of Nutritional Sciences and Dietetics, Tehran, Iran; 2Tabriz University of Medical Sciences, Faculty of Medicine, Department of Immunology, Tabriz, Iran; 3Tabriz University of Medical Sciences, Faculty of Medicine, Department of Biochemistry, Tabriz, Iran Background and Objective: MicroRNAs (miRNAs) are small noncoding RNAs that over and down expression of them related to some human malignancies such as breast cancer. The aim of our review study is the surveying the contradictory effects of vitamin D supplementation on gene expression of specific miRNAs involving in breast carcinogenesis. Materials and Methods: This review compromised on published articles in PubMed and GoogleScholar according to key words since 2000. Results: Generally there are two functionally groups miRNAs in breast cancer. One group is tumor-suppressor miRNA that regulate cell proliferation and apoptosis. Another group is oncogenic miRNA that mediate invasion, metastasis, angiogenesis and drug resistance. miRNA -221, miRNA-29ab, miRNA-26a and miRNA155 upregulated in esterogen receptor positive of breast tumors and induce epithelial-mesanchymal transition, metastasis and tumor progression thus these oncogenic miRNA related to invasiveness properties of tumors. Versus, mi-RNA 17/92 down-regulated in lymph node positive breast tumors therefore it has relatively tumor-suppressor properties. Based on recent clinical trial, vitamin D supplementation up-regulates the miRNA -221, miRNA-29ab and miRNA-26a. These adverse effects of vitamin D may be undesirable for breast cancer patients. Whereas, it has been shown that vitamin D supplementation down-regulates the miRNA-17/92 as a tumorsuppressor miRNA. However, it has favorable effect on miRNA-155 regultion and it can be down-regulate by vitamin D supplementation. Conclusion: In conclusion there are major conflictions in supplementation of breast cancer patients with vitamin D that effect on specific miRNA gene expression in breast cancer. Thus before clinical use of vitamin D or supplementation of breast cancer patients with vitamin D in human clinical trials, the cellular mechanism and its effects should be investigated further and clarified. S69 nodes is almost not taken into account to clinical decisions, mainly due to the assumption that their positivity would be the same that the one scored at the primary tumour. In fact, there is a lack of specific axillary biomarkers to predict patient prognosis when the N is positive. Based on the cancer stem cell (CSC) concept, we hypothesised that CSC markers could be good candidates to be tested as biomarkers in axillary metastases, in order to evaluate, at diagnosis, how patient’s prognosis will be. For that, we studied the expression of P-cadherin, CD44 and CD49f, already associated to stem cell properties in breast cancer, in a series of 135 primary tumours and synchronous axillary lymph node metastases. We found that P-cadherin expression in lymph node metastases was significantly associated with poor patient’s overall and disease-free survival. Moreover, although the majority of the cases have shown a concordant result between the primary tumour and the lymph node, we found some discrepancies. P-cadherin and CD49f were enriched in the lymph nodes when the matched primary tumours were negative, being this gain mainly found within the triple negative molecular subtype. Importantly, we still found that cases that gained P-cadherin expression in lymph node metastasis presented the worst disease-free and overall survival of the whole series, as well as the ones that lost its expression in the lymph nodes, showed a good prognosis besides the positive expression at the primary tumour. In conclusion, P-cadherin is an important predictor of disease outcome of breast carcinomas with lymph node involvement, being a valuable marker for disease progression surrogate end points. These results should be put in perspective, together with the ones obtained by the ACOSOG Z0011 and IBCSG 23-01 studies, where we can understand that the term “positive axilla” is actually very deceptive. In both trials, patients with positive sentinel lymph nodes showed the same results considering surrogate points as overall survival, independently of being subjected to axillary lymph node dissection. PO139 RECEPTOR ACTIVATOR OF NUCLEAR FACTOR KAPPA B (RANK) EXPRESSION IN PRIMARY BREAST CANCER CORRELATES WITH RECURRENCE FREE SURVIVAL AND DEVELOPMENT OF BONE METASTASES IN THE I-SPY 1 TRIAL (CALGB 150007/150012; ACRIN 6657) Neelima Vidula3, Christina Yau1, Jiali Li4, Hope S. Rugo2,3 Buck Institute for Age Research, Buck Institute for Age Research, CA, USA; 2 University of California, San Francisco, Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA; 3University of California, San Francisco, Hematology/Oncology Department, San Francisco, CA, USA; 4 Valley Medical Oncology Consultants, Oncology, CA, USA 1 PO138 P-CADHERIN: A CANDIDATE BIOMARKER FOR AXILLARY-BASED BREAST CANCER DECISIONS IN CLINICAL PRACTICE Maria Rita Dionisio4,6, Andre Filipe Vieira6, Madalena Gomes6, Jorge Cameselle-Teijeiro2, Manuela Lacerda5, Isabel Amendoeira1, Fernando Schmitt7, Joana Paredes6,3 1 Centro Centro Hospitalar de São João, Department of Pathology and Oncology, Porto, Portugal; 2Complexo Hospitalar Universitario de Vigo CHUVI, Department of Pathology, Vigo, Spain; 3Faculty of Medicine of the University of Porto, Department of Oncology, Porto, Portugal; 4Hospital de Santa Maria CHLN Lisboa, Dept. of Medical Oncology, Lisbon, Portugal; 5 Instituto Português de Oncologia Coimbra, Department of Pathology, Coimbra, Portugal; 6IPATIMUP and Instituto de Investigação e Inovação em Saúde, Cancer Genetics, Porto, Portugal; 7Laboratoire National de Santé, Department of Pathology and Medicine, Dudelange, Luxembourg Breast cancer is the most frequent cancer in women worldwide and a major cause of morbidity and mortality. Metastatic spread is the major reason behind the fatal outcome: 6-10% of the patients present metastatic disease at diagnosis and systemic recurrence develops in 25-30% of patients treated with curative intent. According to the Guidelines of ESMO2013, the presence of axillary lymph node (N) metastases is one of the most important prognostic factors in breast cancer and a cornerstone to clinical practice decisions. However, the molecular biology related with the cancer cells growing in the lymph Background: The receptor activator of nuclear factor kappa B (RANK)/ RANK ligand (RANKL)/Osteoprotegerin (OPG) axis may be involved in the development of bone metastases. We studied gene expression in this pathway in primary breast cancer (BC) to determine correlations with clinical characteristics and outcomes in the neoadjuvant I-SPY 1 study. Methods: We evaluated RANK/RANKL/OPG expression with gene microarray studies in I-SPY 1 (n=149), using GSE25066 (n=425) for validation. Associations with clinical features were determined with the t-test and ANOVA. An optimal biomarker cut point to dichotomize recurrence free survival (RFS) curves was determined using I-SPY 1, and then the association between dichotomized biomarkers and RFS was evaluated with the multivariate Cox proportional hazard model. Associations with site specific relapse were determined with the t-test and multivariate logistic regression. Pearson correlations with a significance threshold of p <0.05 with a filter to identify genes with similar concordance in both datasets were used to identify external genes associated with RANK. Results: In I-SPY 1, at 3.5 years, 41 patients developed recurrent disease. 12 patients had any bone metastases (BM) and 22 had non bone metastases (NBM). RANK was significantly higher in hormone receptor (HR) negative vs. HR positive (p=0.027), basal vs. non basal (p=0.004), and pathologic complete response (p=0.038) tumors; the associations with HR negative and basal BC were also significant in GSE25066. In both S70 Abstracts / The Breast 24 S3 (2015) S21–S75 datasets, higher RANK associated with significantly worse RFS (I-SPY 1: p=0.045, GSE25066: p=0.044). In I-SPY 1, higher RANK expression significantly correlated with BM vs. NBM (p=0.045), even on HR status adjustment (p=0.035). 9 external genes had positive concordance with RANK in both datasets. Conclusion: RANK is higher in HR negative and basal BC, and correlates with worse RFS and BM. Targeting this pathway may improve outcomes. PO140 CHANGING IN TUMOR BIOLOGY OF TRIPLE NEGATIVE BREAST CANCER BETWEEN PRIMARY AND METASTATIC LESIONS Marijana Milovic-Kovacevic, Snezana Susnjar, Ljiljana Stamatovic Institute for Oncology and Radiology of Serbia, Department of Medical Oncology, Belgrade, Serbia Triple-negative breast cancer (TNBC) is defined by a lack of expression of both estrogen and progesterone receptor as well as human epidermal growth factor receptor 2. A recent analysis indicates that TNBC carries a distinct molecular profile when compared with HR-positive BC. Scientific efforts have aimed for an identification of (immunohistochemical) markers in conjunction with TNBC status hypothesizing that TNBC is a heterogeneous entity with basal-like breast cancer (BLBC) representing only one presumable subtype. For breast cancer patients whose disease has metastasized, tumor biology sometimes changes between primary and metastatic lesions. Between May 2005 and Feb2012, 416 breast cancer patients with initially TNBC aged 26 to 84 (57 ± 2) years were evaluated who had oncological therapy in clinic of oncology Institute of Oncology and Radiology of Serbia. Thirty three (7.93 %) out of 416 patients developed local recurrence and in 9 (27.3%) of them the local recurrence was the first site of metastasis. Histological sub-types of this BC include: Infiltrating ductal carcinoma 20 (60.6 %), infiltrating lobular carcinoma 9 (27.3%), ductulo-lobular type 2 (6.1 %), and medular carcinoma 2 (6.1%). There were 10 pts out of 33 with initially pure triple negative histology defined as ER/PgR (both score 0) and HER2 negative (IHC 0). Nineteen of the 33 patients had relapsed disease manifested with only local recurrence, while fourteen patients developed disseminated metastases other than local recurrence. In all 33 patients we performed a biopsy of local recurrence allowing histological type of local recurrence, which we compared with the initial histology of the primary tumor. In 18 of 33 pts we analysed expression in immunohistohemical status of steroid hormone receptors (HR) such as estrogen receptor (ER) and progesterone receptor (PgR) in concert with the oncogene ErbB-2/human epidermal growth factor receptor 2 (HER-2). There was no change in histological subtype between primary tumor and local recurrence. However there was just one important change in SR status between primary tumor (ER scor 0, PGR scor 0 and Her2 1+) and local recurrence (ER sc 8, PgR sc 7, Her 2 0) and two unimportant: primary tumor (ER scor 0, PGR scor 0 and Her2 0) and local recurrence (ER sc 0, PgR sc 2, Her 2 1+). Our results shows that there was not identified any significant statistical change in tumor biology between primary tumor and metastatic lesion. Consistent with previous studies, our results confirm that there are no any significant change in tumor biology and immunohistohremical expression of ER or Pgr receptor, HER 2 or gene amplification of Her 2 during the natural history of the disease of TNBC. PO141 SUCCESSFUL USE OF HER2 TARGETED AGENTS IN PATIENTS WITH HEAVILY PRETREATED HER2-NEGATIVE METASTATIC BREAST CANCER PRESENTING WITH ELEVATED SERUM LEVELS OF THE HER2 EXTRACELLULAR DOMAIN AND/OR HER2 OVEREXPRESSING CIRCULATING TUMOR CELLS Christian Martin Kurbacher1, Annegret Quade1, Gerhard Kunstmann3, Susanne Herz1, Jutta Anna Kurbacher2, Matthias R. Warm4 1 Gynecologic Center Bonn-Friedensplatz, Gynecologic Oncology Dpt., Bonn, Germany; 2Gynecologic Center Bonn-Friedensplatz, General Gynecology and Obstetrics, Bonn, Germany; 3Krankenhaus Köln-Holweide, Internal Medicine (Hematology/Oncology), Cologne, Germany; 4Krankenhaus KölnHolweide, Senology, Cologne, Germany Background: A considerable proportion of patients (pts) with HER2negative (HER2-) metastatic breast cancer (MBC) present with elevated serum levels of the HER2 extracellular domain (sHER2) and/or HER2 overexpressing circulating tumor cells (CTCs) during their further clinical course. These “occult” HER2-positive (HER2+) pts may be candidates for anti-HER2 therapy (Tx) albeit normally not subjected to such treatment. This observational study was undertaken to gain more insights into the feasibility of HER2-directed Tx in pts with tissue HER2MBC with elevated sHER2 levels and/or HER2+ CTCs in the clinical routine. Methods: A total of 28 pts with heavily pretreated HER2- MBC (ER+, n=24) showing sHER2 values > 15 ng/mL (n=8), HER2+ CTCs (n=6), or both (n=14) were included. sHER2 was determined by a commercial chemiluminescence immunoassay (Siemens Healthcare Diagnostics, Eschborn, Germany), CTCs were detected by using the CellSearch(TM) technology (Veridex, Raritan, NJ). Pts had failed 2-16 prior systemic treatments (median: 7). All pts received anti-HER2 Tx with trastuzumab (H: n=16), lapatinib (L: n=4), H+L (n=2), or H+pertuzumab (H+P: n=6). HER2-targeting Tx was given alone (n=4), or in combination with endocrine agents (n=5), cytotoxics (n=16), or other targeted drugs (n=3). Responses were scored according to RECIST 1.1, OS was calculated from the start of HER2-directed Ctx until death from any reason or loss to follow-up by using Kaplan-Meier statistics. Results: Anti-HER2 Tx was generally well tolerated. Median treatment duration was 17.0 wks (range 1.0-56.1 wks). In 2 pts with L and 1 pt with H+L, Tx was prematurely stopped due to inacceptable toxicity (diarrhea, fatigue). Whereas 5 pts progressed on Tx, 11 pts achieved PR and another 12 pts experienced SD accounting for an objective response rate (ORR) of 39.3% and a clinical benefit rate (CBR) of 82.1%. Median OS was 76.1 wks. All pts with PR or SD showed declining CTC counts within 6 wks from start of Tx whereas sHER2 decreased only in pts responding on L-free regimens. Conclusion: Our findings indicate that anti-HER2 Tx may be a valid option in pts with heavily pretreated HER2- MBC with pathological sHER2 values and/or HER2+ CTCs in the clinical routine. Serial CTC counts may be the more appropriate predictor of clinical benefit as compared to sHER2. It is unclear at present whether pts included in this study have really shifted from HER2- to HER2+ during their clinical course or should more likely be regarded as false HER2- individuals due to wellknown limitations of the preceding HER2 analyses in tumor tissue. Thus, results of ongoing randomized trials in this setting are eagerly awaited. PO142 EVOLUTION OF THE EXPRESSION OF CIRCULATING TUMOR CELLS (CTC) AND CK-19 MRNA (CK19) AS PROGNOSTIC FACTORS IN HEAVILY PRETREATED METASTATIC BREAST CANCER Serafín Morales Murillo, Ana Velasco Sánchez, Ariadna Gasol Cudos, Juan Felipe Córdoba Ortega, Jose Vidal, Anna Serrate López, Joan Valls, Juan Carlos Samame Pérez-Vargas, Ramon Gisbert, Desamparados Moral, Antonio Llombar Cussac, Antonieta Salud Salvia, Xavier Matias-Guiu Guia Hospital Universitari Arnau de Vilanova de Lleida, Department of Medical Oncology, Lleida, Spain Introduction: The expression of CTC and CK19 has prognostic value for patients with metastatic breast cancer but their clinical significance remains still controversial. We have found a relation between high CTC and CK19 expression in peripheral blood samples with bad prognosis, but if these values are maintained just after starting a new treatment could determine early resistance it´s unknown. Methods: This clinical observational study included 67 preteated metastatic breast cancer patients who started a standard new treatment line. CTC and CK19 were measured with CellSearch® and RT-PCR respectively at inclusion time and after their first cycle of the new Abstracts / The Breast 24 S3 (2015) S21–S75 line of treatment. Progression-free survival (PFS) was defined as the time between the initiation of the treatment and either the date of clinical or radiological progression or death or the last follow-up. Cox proportional hazards regression model was used to assess the univariate prognostic value of CTC and CK19 on PFS, and Kaplan-Meier estimates. A multivariate Cox model was also performed to additionally account for ER and visceral disease. Results: Mean age was 59.68 (range 35-86), the average number of previous treatments was 2.98 (range 1-10), 42 patients (62.6%) were ER+ and 38 (56.7%) had visceral disease. Median PFS was 8 months (CI 95% 3.7-8.2). Univariate analyses showed a significant effect of initial values of CK19 (HR=2 , CI 95% 1.05-3.8, p=0.03) and for the second value of the CTC (HR=2.18, CI 95% 1.22-3.9, p=0.009) but did not reach statistical significance for the initial value of CTC and the second value of CK19. The estimate disease-free survival rate (DFS) at 6 and 12 months were 75% and 31% for patients with low values of CK19 and 36 % and 10 % for high values (p:0.022). While the DFS rate at 6 and 12 months were 86% and 65% for patients with low second value of the CTC and 76 % and 47% for patients with high value (p:0.004), respectively. In the multivariate analysis adjusted by ER and visceral disease the effect of the second value of CTC remain significative (HR=2.7, p=0.004). Conclusions: The expression of CK19 and CTC appeared clinically meaningful in pretreated metastatic breast cancer patients, even when adjusted by ER and visceral diseases. The value of the CTC immediately after an initial treatment is a strongest predictor of survival. These results support CK19 and CTC as an interesting biomarker for predicting clinical response in metastatic breast cancer. PO143 PROGNOSTIC IMPACT OF CIRCULATING TUMOR CELL CLUSTERS AND APOPTOSIS IN METASTATIC BREAST CANCER Sara Jansson1, Pär-Ola Bendahl1, Anna-Maria Larsson1, Kristina Aaltonen1, Lisa Rydén2 1 Lund University, of Clinical Sciences, Division of Oncology and Pathology, Lund, Sweden; 2Skåne University Hospital Lund, Department of Clinical Sciences, Division of Surgery, Lund, Sweden Circulating tumor cell (CTC) quantification in breast cancer has recently been assessed in a large pooled analysis confirming that CTC count has an independent prognostic value. However, it remains unknown to what extent the malignant potential of CTCs is reflected in their morphological characteristics. Studies have shown that presence of apoptotic CTCs and CTC-clusters is associated with decreased progression-free survival (PFS). The aim of this study was to morphologically characterize CTCs in women with metastatic breast cancer, and to correlate these characteristics to breast cancer subtype and prognosis. Women with metastatic breast cancer have since 2011 been enrolled in a Swedish study with the aim of enumerating and characterizing CTCs using the CellSearch® system. Patients with ≥5 CTCs per 7.5 ml blood at baseline (BL) were selected for this project. Sequential blood samples were drawn at 3 and 6 months. CTCs were evaluated for apoptotic changes, clusters (defined as a group of CTCs displaying ≥3 nuclei), and CTC-leukocyte clusters (defined as ≥1 CTC with ≥1 leukocyte attached). 52 patients with a median BL CTC count of 45 (range 5-668) were included in this study. 39 patients had hormone receptor (HR) positive breast cancer, 7 had HER2-amplification and 4 had triple-negative breast cancer (TNBC). 2 patients had unknown status. 9 patients had ≥1 CTC cluster (range 1-18) present at BL. TNBC and HER2-amplified breast cancer had clusters present at higher rate than HR positive cancer (p-value=0.01). In total, 14 patients had ≥1 CTC cluster present at any time during the study. Of the 9 patients with clusters at BL, 6 were cluster free in all subsequent blood samples. These 6 patients had a significantly longer PFS compared to the patients with clusters present at any follow-up blood sample (p-value 0.02). 35 patients had ≥1 CTC-leukocyte cluster at BL. No difference was seen in PFS depending on presence of CTC-leukocyte clusters. 40 patients had ≥1 apoptotic CTC at BL and no difference in PFS was seen compared to patients with no apoptotic CTCs present (p-value=0.3). However the cut point to best separate patients according to apoptotic S71 status of CTCs is unknown. A cut point of ≥10% apoptotic CTCs at BL identified a group of 11 patients that had a tendency towards poorer PFS (p-value 0.1). Detection and quantification of CTCs by the CellSearch® system has recently reached the highest level of clinical evidence. We have conducted an explorative study on CTC morphology in metastatic breast cancer where we show that CTC-clusters and apoptosis in the CellSearch® CTC gallery can provide additional prognostic information to enumeration. Intriguingly, patients who fail to eradicate CTC-clusters from their blood during treatment have a poor prognosis. PO144 SYNERGISTIC ANTITUMOR EFFECTS OF CROCIN COMBINED WITH HYPERTHERMIA ON BREAST CANCER CELLS Reyhane Hoshyar1, Elham Mostafavinia1, Mohammad Reza Abedini2 1 Birjand University of Medical Sciences, Faculty of Medicine, Department of Biochemistry, Birjand, Iran; 2Birjand University of Medical Sciences, Faculty of Medicine, Department of Pharmacology, Birjand, Iran Currently there is considerable interest among scientists to find effective anticancer drugs in herbal components such as carotenoids of saffron stigma. Besides hyperthermia is a promising treatment of breast cancer that inhibited cell growth as well as improved the efficacy of chemoand radiotherapy. We investigated the anti proliferative properties of combination of crocin with hyperthermia on human breast cancer cells (MDA-MB-468). The cancer cells exposed with high temperature (43°C for 2 h), then treated with different concentration of crocin (0-5 mg/ml). Cell viability, cell colony formation ability and cell apoptosis assessed, respectively, by MTT, soft agar, Hoechst 33258 staining and lactate dehydrogenase (LDH) release % methods. Also, the expressions of heat shock proteins (Hsp70 and Hsp90) mRNA determined by quantitative real-time PCR. The combination of hyperthermia and crocin revealed a dose- and time-dependent cytotoxic effect against MDA-Mb-468 cell line. This combination treatment significantly decreased colony forming ability of cancer cells in soft agar with inhibition rate about 94 % compared to crocin (p < 0.001). Our data illustrated an increase in the percentage of cells undergoing apoptosis, as measured by evaluation of nuclear morphology by Hoechst 33258 nuclear staining. Furthermore the percentage of LDH release that apoptosis-inducing effect of this combination therapy was much more than crocin, alone. The treated cells (1.5 mg/ml crocin) markedly down regulated the expression of anti-apoptotic and heat induced genes including Hsp90 and Hsp70 (p < 0.001). In conclusion, hyperthermia enhanced the antitumor effects of crocin against breast cancer through reduction of the expression of Hsp70 and Hsp90. Our study suggested that hyperthermia has synergistic effects when combined with crocin and can be applied as a novel therapy for human breast cancer. PO145 ICORG 13-01 ABC SURVEY: ARE WE MEETING THE NEEDS OF PATIENTS WITH ADVANCED BREAST CANCER (ABC) IN IRELAND? A NATIONWIDE SURVEY Jodie E. Battley4, Rose Beamish4, Miriam O’Connor13, Verena Murphy1, Algirdas Stockunas1, Conleth G. Murphy3, Brian R. Bird3, Deirdre O’Mahony4, Jeffri R M. Ismail5, Karen A. Duffy6, Janice M. Walshe10, John P. Crowne10, Michael J. Martin8, Catherine M. Kelly7, M. John Kennedy9, Linda Coate12, Hennessey Brian2, Maccon Keane11, Seamus O’Reilly4 1 All Ireland Cooperative Oncology Research Group, Oncology Clinical Research, Dublin 2, Ireland; 2Beaumont Hospital, Medical Oncology, Dublin 5, Ireland; 3Bon Secours Hospital, Medical Oncology, Cork, Ireland; 4Cork University Hospital, Medical Oncology, Cork, Ireland; 5Kerry General Hospital, Medical Oncology, Kerry, Ireland; 6Letterkenny General Hospital, Medical Oncology, Donegal, Ireland; 7Mater Misericordiae University Hospital, Medical Oncology, Dublin 7, Ireland; 8Sligo General Hospital, Medical Oncology, Sligo, Ireland; 9St. James’s Hospital, Medical Oncology, S72 Abstracts / The Breast 24 S3 (2015) S21–S75 Dublin 8, Ireland; 10St. Vincent’s University Hospital, Medical Oncology, Dublin 4, Ireland; 11University Hospital Galway, Medical Oncology, Galway, Ireland; 12University Hospital Limerick, Medical Oncology, Limerick, Ireland; 13Waterford General Hospital, Medical Oncology, Waterford, Ireland Background: Despite a continuous decline in mortality since the early 1990s, breast cancer remains the second leading cause of cancer death in women in Ireland. One fifth of patients who are diagnosed with breast cancer in Ireland will develop metastatic disease. Recent studies have emphasized the significant unaddressed needs of patients living with metastatic breast cancer. Traditionally, resourcing for patients with breast cancer has focused on those with newly diagnosed and potentially curable disease. Many patients compare unfavorably the abundant support received at diagnosis to the dearth of support present at relapse. We hypothesise that there is a significant unmet burden of illness in patients living with metastatic breast cancer in Ireland; the purpose of this study is to quantify this. Methods: A 76-item questionnaire was developed by the All-Ireland Cooperative Oncology Research Group (ICORG) in collaboration with metastatic breast cancer patients. This comprises a health questionnaire, investigating perceived psychological and social needs, activities promoting health and well-being, and access to supports. The survey incorporates quality of life measures: The European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C15-PAL), and breast-specific systemic adverse effects scale (EORTC BR-23). This survey was conducted from February 2013 to February 2015. Five hundred patients with metastatic breast cancer were recruited from 8 National Cancer Control Programme (NCCP) centres and affiliated teaching hospitals in Ireland. We propose to present the data on this cohort. Study objectives: The primary end point of this study is the quantification of the quality of life and support needs of patients living with metastatic breast cancer in Ireland. The results of this study will direct further research and inform service development in order to improve patient outcomes. PR146 LOCOREGIONAL RECURRENCE BY TUMOR BIOLOGY IN BREAST CANCER PATIENTS AFTER PREOPERATIVE CHEMOTHERAPY AND BREAST CONSERVATION TREATMENT Eunjin Jwa2, Kyung Hwan Shin1, Ja Young Kim1, So-Youn Jung1, Eun Sook Lee1, In Hae Park1, Keun Seok Lee1, Jungsil Ro1, Yeon-Joo Kim1, Tae Hyun Kim1 1 Research Institute and Hospital, National Cancer Center, Center for Breast Cancer, Goyang, Korea; 2Soon Chun Hyang University College of Medicine, Radiation oncology, Cheonan, Korea Purpose: To determine whether breast cancer subtype affect ipsilateral breast tumor recurrence (IBTR) and locoregional recurrence (LRR) after neoadjuvant chemotherapy (NAC) and breast-conserving therapy (BCT). Methods: We evaluated 335 consecutive patients with clinical stage IIIII breast cancer who received NAC plus BCT from 2002 to 2009. Patients were classified into six molecular subtypes: luminal A (hormone receptor (HR)+/HER2-/Ki-67<15%, n= 113), luminal B1 (HR+/HER2-/Ki67 ≥15%, n=33), luminal B2 (HR+/HER2+, n=83), HER2 with trastuzumab [HER2(T+)] (HR-/HER2+/use of trastuzumab, n=14), HER2 without trastuzumab [HER2(T-)] (HR-/HER2+, n=31) and triple negative (TN) (HR-/HER2-, n=61). Results: After a median follow-up of 7.2 years, 26 IBTRs and 37 LRRs occurred. The 5-year IBTR-free survival rates were 97.2, 93.9, 92.8, 92.9, 89.1, and 84.6% in luminal A, B1, B2, HER2(T+), HER2(T-), and TN patients, respectively. The 5-year LRR-free survival rates were 96.4, 93.9, 90.3, 92.9, 78.3, and 79.6% in luminal A, B1, B2, HER2(T+), HER2(T-), and TN patients, respectively. On multivariate analysis, HER2(T-) (IBTR, hazard ratio=4.2, p=0.04; LRR, hazard ratio=7.6, p<0.01) and TN subtypes (IBTR, hazard ratio=6.9, p=0.01; LRR, hazard ratio=8.1, p<0.01) were associated with IBTR and LRR. Although a pathologic complete response (pCR) was not associated with improved IBTR or LRR in any patients, it was found to correlate with better LRR and a tendency toward improved IBTR controls in TN patients (IBTR, p=0.07; LRR, p=0.03). Conclusions: The TN and HER2(T-) subtypes predict higher rates of IBTR and LRR after NAC and BCT. In cases of non-TN subtypes, a pCR is not predictive of improved IBTR or LRR. PR147 INTRATUMORAL MORPHOLOGICAL HETEROGENEITY OF BREAST CANCER AND ITS IMPLICATION IN CHEMOTHERAPY RESISTANCE Tatiana Gerashchenko1,3, Evgeny Denisov1,3, Marina Zavyalova2, Nadezhda Cherdyntseva1,3, Vladimir Perelmuter2 1 Tomsk Cancer Research Institute, Molecular Oncology and Immunology, Tomsk, Russian Federation; 2Tomsk Cancer Research Institute, Pathological Anatomy and Cytology, Tomsk, Russian Federation; 3Tomsk State University, Translation Cell and Molecular Biomedicine, Tomsk, Russian Federation Background: Intratumor heterogeneity can affect the chemotherapy efficacy and represents a unique platform for the development of targeted therapies. We tried to investigate the influence of intratumor morphological heterogeneity of breast cancer (BC) on chemotherapy response and to clarify the molecular mechanisms of associations, obtained here. Methods: 382 BC patients were enrolled to estimate the association between neoadjuvant chemotherapy (NAC) efficiency and the presence of different types of morphological structures in tumors. To understand the molecular mechanism of association of intratumor morphological heterogeneity with chemoresistance, we compared the expression of drug resistance genes (ABC transporter genes, GSTP1 gene, and drug target genes) between distinct morphological structures of breast tumors (n=4) using laser microdissection-based qPCR. To identify possible chemoresistant markers of morphological structures, transcriptome-wide array analysis was used (SurePrint G3 Human Gene Expression 8x60K v2, Agilent). Results: Patients with alveolar and trabecular structures were more frequently NAC nonresponsive (61.9% vs. 46.4%, p=0.0028; 58.8% vs. 45.3%, p=0.0272, respectively) than cases without this structural type. Chemoresistance, related to alveolar structures, was observed in lymph node positive BC patients (p=0.005), but not in cases without lymphogenic metastases. In addition, in NAC nonresponsive group, cases with alveolar structures displayed high frequency of lymph node metastasis in comparison with ones without this morphological variant (71.3% vs. 30.9%, p<0.0001). Trabecular structures showed many active ABC transporter genes compared to other morphological variants (75.0% vs. 46.4%-60.7%, p=0.055). Moreover, ABCB1 and ABCG2 gene expression (the key ABC transporter genes) was found only in trabecular structures. In contrast, alveolar structures showed low activity of ABC transporter and drug target genes. Nonetheless, transcriptome-wide array analysis showed different genes, which were significantly up-regulated in alveolar structures: BGN, DZIP3, NIPAL2, ANKRD54 etc. Conclusions: Alveolar and trabecular structures show aggressive chemoresistant potential and impede to chemotherapy response. In case of trabecular structures it probably explained by high activity of ABC transporter genes. The contribution of alveolar structures to drug insensitivity can be linked with other gene pathways, which association with chemoresistance requires to be confirmed in the future research. Anyway, chemoresistance properties of alveolar and trabecular structures can make them as attractive targets in the development of precision therapy. Research is supported by Russian Science Foundation Grant: No. 14-1500318 Abstracts / The Breast 24 S3 (2015) S21–S75 PR148 ANDROGEN RECEPTOR (AR) EXPRESSION AS A PROMISING INDEX OF THE PREDICTION OF DISTANT METASTASIS OF TRIPLE NEGATIVE BREAST CANCER (TNBC) Noriko Miwa3,1, Takahito Onishi2, Seigo Nakamura3 1 Nishiwaki Municipal Hospital, Breast Surgical Oncology, Nishiwaki-city, Japan; 2Nishiwaki Municipal Hospital, Pathology, Nishiwaki-city, Japan; 3 Showa University, Breast Surgical Oncology, Tokyo, Japan Introduction: The gene expression profiling is useful but sometimes inappropriate in the life-threatening disease, therefore, it is important to handle the usual method like IHC especially for the treatment of advanced breast cancer. We focused AR because it could subdivide TNBC into AR-positive “modest” TNBC and AR-negative “aggressive” TNBC. In order to clarify the biological feature of AR-negative TNBC, the relationship among the expression of AR, the sensitivity to the chemotherapy, and the tendency to distant metastasis was studied. Method: Twenty four TNBCs diagnosed in our hospital from 2011 through 2014 were examined. AR expression was estimated by IHC and shown as the percentage of positive cells (0-100%) using the specimen at diagnosis. The histological therapeutic effect of PST and the distant metastasis were also checked. As reference, luminal-like type and HER2enriched type were explored. Results: 1. AR expression in TNBC was 35±45% for early tumor (n=13), 12±29% for distantly metastasized disease (n=9), and 86±15% for locoregional recurrence and large tumor without metastasis (n=3). 2. In HER2-enriched, luminal A-like, and luminal B-like tumors AR expression were 69±32% (n=14), 81±17% (n=8), and 73±36%(n=11) for early tumor, and 70% (n=1), 86±15% (n=3), and 40 (±56%) (n=2) for distantly metastasized disease, respectively 3. AR expression and histological therapeutic effect of TNBC : 0, 0, 5, 100% for grade 3 (n=4), 0% for grade 2 (n=1), 0, 0, 5, 80, 100% for grade 1 (n=5), 0% for grade 0 (n=1). Three of the eleven cases after PST recurred by distant metastasis within 1 year of which histological therapeutic effect was grade 1-0 and AR was not expressed. Discussion: 1. The triple negative and luminal B-like breast cancers with low AR expression had tendency to the distant metastasis different from HER2-enriched and luminal A-like tumors. The TNBC with pCR followed good prognosis even if AR expression was low. 2. The obvious relationship between AR expression and the histological therapeutic effect in TNBC was not detected. 3. The AR expression decreased in luminal B-like tumor for distant metastasis, which resembles that in TNBC, in contrast, AR state was stable for luminal A-like tumor even after distant metastasis. Conclusion: 1. The signaling via AR may surppress the distant metastasis for TNBC and luminal B-like tumors. 2. It was suggested that there might be at least two subpopulations in luminal-like breast cancer dependent on the behavior in AR expression at distant metastasis.3. AR expression was not the predicting index for the effectiveness of PST. More cases are required to make the conclusions valid. We are studying the suppression mechanism for distant metastasis by AR signaling. PR149 PROGNOSTIC SIGNIFICANCE OF KI67 PROTEIN EXPRESSION IN METASTATIC BREAST CANCER SURVIVAL Natasa Todorovic-Rakovic, Ksenija Kanjer, Zora Neskovic-Konstantinovic Institute for Oncology and Radiology of Serbia, Department of Experimental Oncology, Belgrade, Serbia Introduction: Ki67 is a nuclear protein and established tumor proliferation biomarker with prognostic and predictive significance in breast cancer. However there is a lack of consensus regarding its clinical use, although it could influence selection of patients for adjuvant breast cancer therapy. Most of the studies were focused on prognostic role of Ki67 in early breast cancer, but its significance in metastatic breast S73 cancer patients is less known. Aim of our study was to evaluate the possible influence of Ki67 expression on metastatic breast cancer survival. Material and Methods: 84 primary tumor tissue samples with known clinicopathological parameters, were included in the study. At the time of diagnosis of metastatic disease, most of the patients had multiple metastases, and the rest had single (visceral or bone) involvement. Patients were followed from time of diagnosis of metastatic disease till death. In metastatic setting patients received different kinds of therapy (CMF, FAC and hormonal) single or in combination. Ki67 determination was performed by using anti-Ki67 monoclonal antibody (clone MIB-1, Dako, Denmark) and Ki67 index was defined as the number of Ki-67 positive nuclei per 1000 malignant tumor cells. Cutt off value of 20% Ki67 positive cells was used. Results: There was no correlation between Ki67 expression and the rest of clinicopathological parameters, including steroid receptor (ER,PR) and HER2 status. Regarding survival analysis, Ki67 expression was independent predictor of the course of metastatic disease for the whole group of metastatic breast cancer patients (p<0,001 Log rank test) and especially in a subgroup of patients with tumors smaller than 2cm (T1,T2) and subgroup of patients primarily diagnosed at stage I,II (early breast cancer). Patients with Ki67 level <20% had a much better prognosis (median survival time 90 months) than patients with Ki67 level >/= 20% (median survival time 26 months) in a subgroup of patients with tumors smaller than 2 cm (p=0.004 Log rank test). Also in a subgroup of patients diagnosed at stage I,II patients with Ki67 level <20% had a much better prognosis (median survival time 90 months) than patients with Ki67 level >/= 20% (median survival time 24 months) (p<0,001 Log rank test). In contrast to that, Ki67 expression was not relevant prognostic indicator for metastatic survival in patients with larger tumors or patients diagnosed as advanced disease. Conclusion: This indicates that Ki67 determined from primary breast tumor tissue could influence metastatic breast cancer survival in favourable subgroups of patients (smaller tumor size, early stage of disease) in a way that its increased expression mean worse prognosis of such patients. In that context Ki67 expression could be important in therapy decision making in adjuvant and metastatic setting as well. PR150 PROGNOSTIC IMPACT OF 25-HYDROXYVITAMIN D LEVELS IN EGYPTIAN PATIENTS WITH BREAST CANCER Shereen El Shorbagy1, Rasha Haggag1, Hoda Ebian2 1 Zagazig University, Department of Medical Oncology, Faculty of Medicine, Zagazig, Egypt; 2Zagazig University, Clinical Pathology, Faculty of Medicine, Faculty of Medicine, Zagazig, Egypt Background: According to the literature, vitamin D (Vit D) deficiency is a risk factor for developing breast cancer with lack of information on its direct prognostic effects in breast cancer. Patients and Methods: A total of 168 women with proven breast cancer diagnosed in Zagazig university hospitals-Egypt were enrolled in the study. Serum level of 25(OH) Vit D was measured in stored blood. Hydroxy vit D level classified into three groups: deficient: < 10ng/dl; insufficient: 10-30 ng/dl; and sufficient: > 30ng/dl. Clinical and pathological data were accessed to examine prognostic effects of vitamin D. Results: Median age was 51.5 (26- 77) years, metastasis was present in 13.1% of the cases. Stage of tumor was I, II, III and IV in 15.5%, 34.5%, 36.9% and 13.1% 0f patients, respectively. The tumor grade was low in 11.9% 0f cases, intermediate in 63.3% of cases, and high in 26.8% of cases. The Ki-67, HER2, ER and PR were positive in 35.7%, 32.7%, 69%, and 64.3% of the patients, respectively. The median serum level of 25(OH) Vit D was 20 (5-98) ng/ml; it was deficient in 39.3 % of patients, insufficient in 32.1 % of patients, and sufficient in 31% of patients. Serum level of 25(OH)D levels decreased significantly with increasing body mass index( BMI) (P=0.00), also the relation of 25 (OH) Vit D level with the number of positive lymph nodes, tumor size, tumor stage and KI 67 level was statistically significant (p= 0.01,p=0.011, p=0.002, p= 0.001 S74 Abstracts / The Breast 24 S3 (2015) S21–S75 respectively). The level of 25 (OH) vitamin D was significantly lower in metastatic patients compared to non metastatic patients (p=0.01). Conclusion: There may be an association between deficiency in the serum level of 25(OH) Vit D and prognosis of breast cancer. PR151 EFFECTS OF PHYTOESTROGEN EXTRACTS ISOLATED FROM ELDER FLOWER ON HORMONE PRODUCTION AND RECEPTOR EXPRESSION OF TROPHOBLAST TUMOUR CELLS JEG-3 AND BEWO, AS WELL AS MCF-7 BREAST CANCER CELLS Lennard Schröder University Hospital Munich, Gynecology and Obstetrics, Munich, Germany Purpose: Lignans and flavonoids have a controversial effect on hormonedependent tumors. Herein we investigated the effect of the elderflower extracts (EFE) on hormone production and proliferation of trophoblast tumour cells JEG-3 and BeWo, as well as MCF-7 breast cancer cells. Methods: The EFE was prepared and analyzed by mass spectrometry. MCF-7, JEG-3 and BeWo cells were incubated with various concentrations of EFE. Untreated cells served as controls. Supernatants were tested for estradiol production with an ELISA method. Furthermore, the effect of the EFE on ER/ER/PR expression was assessed by immunocytochemistry. Results: The EFE was found to contain a substantial ratio of lignans. Estradiol production was inhibited in MCF-7, BeWo and JEG-3 cells in a concentration-dependent manner. EFE up regulates ER in JEG-3 Cell Lines. In MCF-7 cells, a significant ER down-regulation and a significant PR up-regulation were observed. Conclusions: Especially the downregulating effect of EFE on estrogen receptor expression and the up regulation of the progesterone receptor expression in breast cancer cells are promising results of this pioneer study. After properly designed animal studies these findings could highlight a potential of elderflower extracts in breast cancer prevention and/or treatment. PR152 IS NGS STILL EFFICIENT IN FINDING NEW GENES FOR BREAST CANCER? Aniruddh Kashyap Pomeranian Medical University, Dept. of Genetics and Pathology, Szczecin, Poland Popularity of next generation sequencing (NGS) has increased significantly in last years and it is been widely used for various types of research approaches. We applied whole-exome sequence approach using NGS in familial breast cancer patients from Poland. Polish population is a homogeneous population with eleven known founder mutations in three genes associated with breast cancer (BRCA1, CHEK2, and NBS1). Approximately 20% of all breast cancers are of familial background and the known founder mutations are only responsible for half of them. We performed whole-exome sequencing in 144 selected families with breast cancer, which were negative for eleven known Polish founder mutations. Twenty four truncating mutations were detected in eight known breast cancer associated genes (Cybulski et al. Clin Genet 2014). It included new founder mutation in PALB2 gene, which was proved to be associated with poor survival in our later studies (Cybulski et al. Lancet Oncol 2015). Furthermore, we selected 10 other delirious mutation in genes not yet reported to be associated with breast cancer. These novel mutations were validated in a large series of unselected breast cancers and controls (13,611 cases and 4,702 controls). Through this approach, we were able to detect a new susceptibility gene for breast cancer (RECQL) with an odds ratio of 5.4 (p=0.008) (Cybulski et al. Nat Genet 2015). Therefore we concluded that the whole-exome sequencing approach using NGS in genetically homogeneous populations is efficient in finding novel mutation and new genes associated with breast cancer. PR153 VITAMIN D IMPORTANCE IN THE ONCOLOGY CONSULTATION FOR THE BREAST CANCER PATIENT Vasco Fonseca1, Margarida Brito2, Sofia Cassamo1, Daniel Sousa1, Daniel Romeira1, Ana Martins1 1 CHLO, Oncology Department, Lisboa, Portugal; 2IPO de Lisboa, Oncology Department, Lisboa, Portugal Introduction: The relation between vitamin D and breast cancer is not yet totally defined and there is no consensus about its role in the disease’s etiopathogenesis. Literature allude that a low laboratorial value of vitamin D3 (25-hydroxicholecalciferol) is related with a higher risk of breast cancer, as well as with a worse prognostics in these patients. In patients treated with aromatase inhibitors, RANKL inhibitors or biphosphonates it is defined that they should do the calcium and vitamin D supplementation, but it is not yet defined, in this patients’ subgroup, if its dosing should be considered. The link between breast cancer and bone disease is well known, and it is compulsory in the oncology and clinic setting, a specific approach to these patients’ bone pathology. Once more, it is not defined, for all the sceneries, the part of calcium and vitamin D’s supplementation, nor the value of vitamin D’s laboratorial dosage. Objectives: To describe the laboratorial value of vitamin D in Breast Cancer patients, in clinical practice. Material and Methods: In an oncology consultation, in the Western Lisbon Hospital Centre, there was a selection of the patients who, randomly were asked to get the vitamin D’s dosage, between the 1st of January 2014 and the 21st of April 2015, before the calcium and vitamin D’s supplementation. Discussion: From a universe of 56 examined patients (44 adjuvant therapy and 12 metastatic disease), it was concluded that 27 had vitamin D3’s dosage. The median age was 64 years with a range from 31 to 97 years. Within these 27 patients, 1 had a result <25 nmol/L (deficient), 24 patients between 25 and 75 nmol/L (insufficient), 2 between 75 and 250 nmol/L (normal) and none of them with values above 250 nmol/L (toxic). The average concentration of vitamin D3 in these patients was 48.6 nmol/L, with a maximum value of 82 nmol/L and a minimum less than 20 nmol/L. The five patients with metastatic disease that realize vitamin D had average concentration of vitamin D3 of 39 nmol/L. The two patients with normal values in the vitamin D’s dosage were supplementing it before the consultation. Conclusion: It is considered that, in breast cancer patients, vitamin D’s dosage should be performed in the first oncology consultation and that this value should be taken into consideration to decide if there will be a supplementation. It is also acknowledged that rules should be created, for clinical orientation, regarding situations in which the vitamin D’s dosage should be performed and its frequency. It should be clarified the vitamin D’s supplementation in its individual form or with calcium, for breast cancer patients, in an adjuvant strategy or for metastatic disease. PR154 EVALUATION OF CARDIOTOXICITY IN BREAST CANCER PATIENTS WITH HUMAN EPIDERMAL GROWTH FACTOR RECEPTOR-2 OVEREXPRESSION UNDERGOING TRASUZUMAB TREATMENT Nicoleta Zenovia Antone Institute of Cancer “Prof dr. Ion Chiricuta”, Dept. of Radiotherapy, ClujNapoca, Romania Objective: Evaluation of cardiotoxicity in patients with breast cancer overexpressing the human epidermal growth factor receptor-2 in the setting of treatment with transtuzumab. Material and Methods: The study observed 31 patients (medium age 52.16±8.2 years; 30 females and 1 male) diagnosed with breast carcinoma overexpressing the human epidermal growth factor receptor-2 and following treatment with trastuzumab. Assessment of cardiovascular status and echocardiography was performed initially Abstracts / The Breast 24 S3 (2015) S21–S75 and at 3, 6, 9, 12 and 18 months. Several demographic, clinical and paraclinical parameters of patients were observed. Cardiotoxicity was defined as: 1) an absolute drop ≥10% in the final left ventricular ejection fraction from the baseline value and below the level of 50% , 2) each absolute decrease of the final left ventricular ejection fraction ≥15% in any moment of the evaluation, 3) any symptoms or signs of heart failure. Results: The study observed 6 cases (19.4%) that performed the criteria for cardiotoxicity. Asymptomatic diastolic dysfunction was present in 9 patients (29%). There were no statistically significant variations of the final left ventricular ejection fraction in different moments of the evaluation (p=0.23). The age of the patients had no influence on cardiotoxicity (p=0.36). Cardiac toxicity was not statistical associated S75 with the performance status ECOG (p=0.11), stage of disease (p=0.56), history of arterial hypertension (p=0.2), diabetes mellitus (p=0.64), obesity (p=0.95), dyslipidemia (p=0.15), prior anthracycline exposure (p=0.95), concomitant treatment with taxanes (p=0.35), prior leftsided radio-therapy (p=0.38) and asymptomatic diastolic dysfunction (p=0.64). The median age of the patients who developed asymptomatic diastolic dysfunction during treatment with trastuzumab (58.33±5.41) was significantly higher than the median age of the patients without the condition (49.64±7.87) (p=0.005). Conclusions: One out of five treated patients developed cardiotoxicity. None of the studied parameters had any influence on cardiac toxicity in the study group. The Breast 24 S3 (2015) S76–S77 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t ABC3 - Disclosure of Conflict of Interest Faculty members have been asked to disclose any potential conflict of interest in relation to their participation in the conference. Potential conflict of interest are considered any of the following: • Any financial interest in or arrangement with a company whose products or services are discussed in the lecture or that might be considered as part of the consensus process. • Any financial interest in or arrangement with a competing company. • Any other financial relationship, direct or indirect, or other situations that might raise the question of bias in the work presented or in the participation in the consensus process, including pertinent commercial or other sources of funding for the speaker or panellist or for the associated department or organisation, personal relationships or direct academic competition. ABC3 chairs, faculty and panel members Matti Aapro: Consultant for Abraxis, Amgen, BMS, CarisLifeSciences, Celgene, Eisai, GenomicHealth, GSK, Helsinn, Hospira, Novartis, Merck, Merck Serono, Pfizer, Pierre Fabre, Roche, Sandoz, Teva, Vifor and has received honoraria for lectures at symposia f Amgen, Astellas, Bayer Schering, Cephalon, Eisai, Ferring, Genomic Health, GSK, Helsinn, Hospira, Ispen, JnJ OrthoBiotech, Merck, Merck Serono, Novartis, Pfizer, Pierre Fabre, Roche, Sandoz, Sanofi, Teva, Vifor Fabrice Andre: No significant relationships Samuel Aparicio: Receipt of grants/research supports: Takeda Biopharma Carlos H. Barrios: Receipt of grants/research supports: Amgen, Astra Zeneca, Boehringer-Ingelheim, GSK, Novrtis, Pfizer, Roche/Genentech, Eisai, Lilly, Sanofi-Aventis, Celgene and has received honoraria or consultation fees from: BoehringerIngelheim, GSK, Novartis, Pfizer, Roche/Genentech Marc Beishon: Receipt of honorarium: Pfizer Jonas Bergh: Receipt of grants/research supports paid to Karolinska Institute and University Hospital: Roche, Bayer, Sanofi-Aventis, Astra Zeneca, Pfizer, Merck, Amgen Gouri Shankar Bhattacharyya: No significant relationships Laura Biganzoli: No significant relationships Fatima Cardoso: Receipt of honoraria or consultation fees: Astellas/medication, Astra Zeneca, Celgene, Daiichi-Sankyo, Eisai, GE Oncology, Genentech, GSK, Merck-Sharp, Merus BV, Novartis, Pfizer, Roche, Sanofi Maria-João Cardoso: No significant relationships Lisa A. Carey: No significant relationships Dian “CJ” M. Corneliussen-James: Receipt of honoraria for work for ABC3 Alberto Costa: No significant relationships Robert E. Coleman: Receipt of grants/research supports: Bayer, Celgene. Expert testimony: Novartis Giuseppe Curigliano: No significant relationships 0960-9776/© 2015 Elsevier Ltd. All rights reserved. Véronique Dieras: Receipt of honoraria or consultation fees: Roche, Genentech, Novartis, Eisai. Participation in a sponsored speakers bureau: Roche, Pfizer Nagi S. El Saghir: Receipt of grants/research supports: GSK, Novartis, Roche. Receipt of honoraria or consultation fees: lecture honoraria: Novartis, Roche, MSD, AstraZeneca, Celgene Alexandru Eniu: Receipt of grants/research supports: Astra Zeneca, Roche, Celltrion, Pfizer, Mylan Lesley Fallowfield: No significant relationships Doris Fenech: No significant relationships Patrick Flamen: Receipt of grants/research supports: Sirtex/ Bayer, receipt of honoraria or consultation fees: Sirtex/Bayer Prudence A. Francis: Conference travel support from Roche and Amgen Karen Gelmon: Receipt of honoraria or consultation fees: Roche, Genetech, Astra Zeneca, Pfizer, Nanostring, Novartis Alessandra Gennari: Receipt of grants/research supports: Celgene/Teva, receipt of honoraria or consultation fees: Celgene, Teva, Eisai, Pierre Fabre, participation in a sponsored speakers bureau: Celgene, Teva, Eisai Nadia Harbeck: Receipt of honoraria or consultation fees: Amgen, Astra Zeneca, Celgene, Novartis, Pfizer, Roche Jens Hoffmann: Employee or stock shareholder: EPO— Experimental Oncology and Pharmacology Berlin-Buch GmbH, Bayer Pharma AG Clifford Hudis: No significant relationships Bella Kaufman: Receipt of honoraria: AstraZeneca, Novartis, Pfizer and Roche Ian E. Krop: Receipt of grants/research supports: Genentech/ Roche Stella Kyriakides: No significant relationships Musa Mayer: No significant relationships Hanneke Meijer: No significant relationships Shirley A. Mertz: Receipt of honoraria or consultation fees: Pfizer Larry Norton: No significant relationships Shinji Ohno: No significant relationships Olivia Pagani: Participation in a sponsored speakers bureau: Novartis, Celgene Evi Papadopoulos: No significant relationships Fedro A. Peccatori: No significant relationships Frédérique Penault-Llorca: No significant relationships Martine J. Piccart: Board member: PharmaMar; consultant (honoraria: Amgen, Astellas, AstraZeneca, Bayer, Eli Lilly, Invivis, MSD, Novartis, Pfizer, Roche-Genentech, Sanofi Aventis, Symphogen, Synthon, Verastem; research grants to my institute most companies Jean-Yves Pierga: Receipt of grants/research supports: Roche, Jansen Diagnostics; receipt of honoraria or consultation fees: Roche, GSK, Novrtis, Genomic Health; participation in a sponsored speakers bureau: Roche, Novartis Fausto Roila: No significant relationships Hope S. Rugo: receipt of grants/research supports: GSK, Genentech/Roche, Novartis, Merck, Pfizer, Eisai, Macrogenics, Amgen, Biomarin, Plexxikon Conflict of interest / The Breast 24 S3 (2015) S76–S77 Kimberly A. Sabelko: No significant relationships Elzbieta Senkus-Konefka: Receipt of honoraria or consultation fees: Astellas, Janssen, Bayer, Roche, AstraZeneca, GSK, Amgen, Pierre Fabre, Teva; travel expenses: Roche, Novartis, Janssen, Astellas, Amgen, Sandoz, Ipsen, Bayer, Egis Lille D. Shockney: No significant relationships George W. Sledge Jr.: Member Board of Directors: Syndax; member SAB: Symphogen Danielle Spence: No significant relationships Richard Sullivan: Receipt of unrestricted research grant Sandra Swain: Receipt of grants/research supports: Genentech/ Roche, Pfizer, Puma; receipt of honoraria or consultation fees: Genentech/Roche, Clinigen, Astra Zeneca; participation in a sponsored speakers bureau; nonpromotional Genentech/ Roche; spouse/partner: travel: Genentech/Roche; travel: Genentech/Roche S77 David G. Taylor: Receipt of grants/research supports: Novartis; receipt of honoraria or consultation fees: Novartis Christoph Thomssen: No significant relationships Luzia Travado: Receipt of honoraria or consultation fees: Novartis and Roche Andrew Tutt: Receipt of grants/research supports: Vertex, Astra Zeneca, Myriad Genetics, Roche; receipt of honoraria or consultation fees: Verte, Eisai; named on patent (King’s College London) Genome Instability; rewards to Inventors Scheme- Institute of Cancer Research ARP inhibitors BRCA1/2 Associated Cancers Daniel A. Vorobiof: No significant relationships Eric Winer: Receipt of grants/research supports: Genentech/ Roche Binghe Xu: No significant relationships The Breast 24 S3 (2015) S78–S81 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Author index Aaltonen, K. Aapro, M. Abdalla, S. Abedini, M.R. Abou-Shousha, S.A. Agresti, R. Ahn, E. Akagi, Y. Alieldin, N. Amadori, D. Amaducci, L. Amendoeira, I. Amina, T. André, F. Anikusko, M. Antone, N.Z. Antunez de Mayolo, J. Anwar, M.M. Aparicio, S. Aranda, S. Arata, R. Arihiro, K. Arisanty. D, Arju, R. Arora, S. Artamonova, E. Asghari, F. Awad, A.T. Aziz, B. Azmi, R. PO143 IN22, PO112 PO110 PO144 PO132 BP103 PR118 OR128 PO77 BP129 BP129 PO138 PO83 IN12 PO109 PR154 PR118 PO132 IN24 PO40 PO104 PO104 PO135 PO133 IN03 PO55 PR137 PO66 PO97 PO41 Bachelot, T. Balena, F. Bardenhewer, M. Barrios, C. H. Basha, A.M. Battley, J.E. Beamish, R. Beaumont, T. Bebeci-Docaj, A. Bell Dickson, R. Belyaeva, A. Bendahl, P. Benn, C.A. Bergh, J. Berrada, N. Bhattacharyya, G.S. Bianchi-Micheli, G. Bidard, F-C. Bidoli, P. Bilic, I. Bird, B.R. Bologna, A. Bolotina, L.V. Bonadies, A. Borg, C. Botella, A. Bozic, M. Bozovic-Spasojevic, I. Brady, C. Bragato, B. Brechenmacher, T. Brito, M. Broco, S. PO56 PO43 BP52 IN09 PO66 PO145 PO145 PO48 PR90 PO42 PR136 PO143 PO106, PO108 IN14 PO83, PR126 IN35 PO117 IN23 PO64 PR94 PO145 BP129 PO107 BP103 PO110 PO116 PO99 PO58, PO59 PO69 PO43 PO56 PR153 PO68, PO70 0960-9776/© 2015 Elsevier Ltd. All rights reserved. Bruzzi, P. Busko, E. Bussone, R. BP129 PR136 BP103 Cabula, C. Cameselle-Teijeiro, J. Campana, L. Campos, L. Canario, R. Cardoso, D. Cardoso, F. Cardoso, M-J. Carey, L. A. Carvalho, T. Casalta-Lopes, J. Cassamo, S. Catarino, A. Cazzaniga, M.E. Chamalidou, C. Chari, N. Cherdyntseva, N. Cheshuk, V. Ciccarese, M. Clivio, L. Coate, L. Coleman, R. Collins, R. Conti-Beltraminelli, M. Coons, H.L. Córdoba Ortega, J.F. Corneliussen-James, CJ Dian. Cortesi, L. Crawford, K. Cropley, M. Crowne, J.P. Cruz, J. Cubano, L.A. Cunha, J. Curatolo, P. Curigliano, G. BP103 PO138 BP103 PO116 PO70 PO116 PO56 IN29 IN15 PO68, PO70 PO70 PR153 PO68 PO64 PO96 BP38 PR147 PO109 PO64 PO64 PO145 IN01 PO69 PO117 PO42 PO142 IN02 PO64 OR37 PR124 PO145 PO70 PO133 PO78, PR95 BP103 IN17 D'Aiuto, M. Darwish, A. de Lara, S. De Laurentiis, M. De Meo, L. Debled, M. De Censi, A. Decio, R. Decker, T. Del Mastro, L. Della Torre, S. Dellepiane, C. Denisov, E. Diéras, V. Dionisio, M.R. Duffy, K.A. BP103 PO77 PO96 BP103 BP103 PO56 BP129 PO117 OR51 PO62 PO64 PO62 PR147 IN13 PO138 PO145 Ebian, H. Ebrahimpour Koujan, S. Elhussini, M.A. El-hussieny, G. El Shorbagy, S. Eniu, A. PR150 PR137 PO66 PO66 PR150 IN07 Author index / The Breast 24 S3 (2015) S78–S81 Enlund, F. Esser, M. PO96 PO45, PO115 Fabrizio, T. Fadoua, E. Fallowfield, L. Fancelli, S. Farci T. Farhat, F. Feliz-Mosquea, Y. Fernandes, L. Ferreira, A. Ferzi, A. Flamen, P. Fonseca, V. Fonseca, C. Fouzia, M. Franci, S. Francis, P.A. Freitas, D. Freschi, A. Fujihara, M. Furtado, I. BP103 PR126 IN10 PO62 PO43 PO61 PO133 PO116 PO62 PO64 IN19 PO116, PR153 PO116 PR126 PO43 IN27 PO78, PR95 BP129 PO53 PO79 Gabrys, D. Galuppo, S. Gasol Cudos, A. Gebhart , G. Gehring, C. Gelmon, K. Gennari, A. Gerashchenko, T. Gervásio, H. Ghosn, M. Gianni, L. Giashuddin, S. Gilmore, J. Ginsberg, S. Giovanardi, F. Gisbert, R. Goga, A. Gojkovic Horvat, A. Gomes, M. Gonçalves, B. Gorini, A. Gosalbez, B. Gough, K. Govindbabu K. Grasso, D. Grilz, G. Gugic, J. Guida, M. Güth, U. Gyr, T. PO98, PO100 BP103 PO142 IN19 BP52 IN05 IN28, BP129 PR147 PO68, PO70 PO61 BP129 PO133 PO69 PO46 PO64 PO142 PO134 PO99 PO138 PO68, PO70 PR124 PO79 PO40 IN35 PO62 BP103 PO99 BP103 PO63, PO75, PO81, PR91, PO105 PO117 Haggag, R. Hakamada, K. Hamza, E. Hanane, R. Hansra, D. Harahap, W.A. Harbeck, N. Harmer, V. Harrold, E. Hassan, E. Hayama, S. Hegg, R. Helal, A. Hennessey, B. Herz, S. Hikichi, M. Hind, M. Hiroki, O. Hoffmann, J. Hoshyar, R. Huang, D. Hudis, C.A. Hurlbert, M. PR150 PO76 PR126 PR126 PR118 PO135 IN26, BP52 PO42 PO69, PO122 PO83, PR126 PO80, PO101 PO56 PO77 PO145 PO73, PO141 PO57 PO83, PR126 PO74 IN25 PO144 PO63 PO75 PO81 PR91 PO105 IN18 OR37 S79 Ibragimov, J. Ibrahim, E. Ide, R. Igawa, A. Ikebe, D. Imane, O. Imoto, S. Imyanitov, E. Irfan, M. Isaka, H. Ishida, K. Ishige, H. Ishikawa, M. Ismail, J.R.M. Itami, M. Itamoto, T. Ito, H. Ito, M. Itoh, K. Iwakuma, N. Iwase, T. PO114 PO83, PR126 PO104 PO76 PO72 PR126 PO130 PR136 PO97 PO130 PR93 PR123 PR85 PO145 PO72 PO104 PO130 PO53 OR128 OR128 PO80 Jänicke, M. Jansson, S. Jarz b, M. Jung, S. Jwa, E. OR51 PO143 PO98 PR146 PR146 Kadirova, Z. Kadoya, T. Kajiwara, Y. Kanauchi, H. Kanjer, K. Kashiwaba, M. Kashyap, A. Katcharava, M. Katselashvili, L. Kattan, J. Kawagishi, R. Keane, M. Kelly, C.M. Kelly, L. Kennedy, M.J. Khambri. D, Khasanova, A. Kikuchi, Y. Kim, J.Y. Kim, T.H. Kim, Y. Klimenko, V. Knackmuhs, V. Knox, S. Kobakhidze, S. Kobayashi, N. Kolarevic, D. Kolben, T. Kolberg, G. Komatsu, H. König, A. Kovács, A. Kovalenko, E. Koynov, K. Krivorotko, P. Krop, I.E. Kruggel, L. Kulik, R. Kumar, D. Kunstmann, G. Kunze-Busch, M. Kurbacher, A.T. Kurbacher, C.M. Kurbacher, J.A. PR113 PO104 PO53 PO54 PR149 PR93 PR152 PO67 PO67 PO61 PR93 PO145 PO145 PO69 PO145 PO135 PR88 PO54 PR146 PR146 PR146 PR136 OR37 PO39 PO67 PO57 PO59, PR89 BP52 PO73 PR93 BP52 PO96 PO55 PO82 PR136 IN04 OR51 PO100 PR102 PO141 IN20 PO73 PO73, PO141 PO73, PO141 Lacerda, M. Lai, A. Lambertini, M. Larsson, A-M. PO138 PO62 PO62 PO143 S80 Author index / The Breast 24 S3 (2015) S78–S81 Larysz, D. Leadbeater, M. Lee, E.S. Lee, K.S. Li, J. Linderholm, B. Liubota, I. Liubota, R. Llombar Cussac, A. PO98 PO48 PR146 PR146 PO139 PO96 PO109 PO109 PO142 Macneal, P. Madeira, P. Majdic, E. Makhamedjanov, D. Malhotra, H. Manlius, C. Manna, A. Manzyuk, L. Mapunda, P. Mariano, M. Marinko, T. Marques, A. Marschner, N. Martin, M.J. Martinez-Montemayor, M.M. Martins, A. Marven, M. Marx-Rubiner, L. Masaki, T. Matias-Guiu Guia, X. Matsubara, K. Matsui, Y. Matsuo, S. Matsuura, K. Mayer, M. McCann, M. McNamara, B. Meani, F. Mehmood, T. Mehta, A. Meijer, H.J.M. Melo Cruz, F. Mertz, S.A. Michishita, S. Miguens, M. Mihanfar, A. Milosevic, S. Milovic-Kovacevic, M. Minuti, G. Mishima, M. Miwa, N. Miyaki, T. Miyamoto, K. Miyazaki, M. Mohammed, L. Monreal, K. Montagna, G. Moodley, S. Moral, D. Morales Murillo, S. Moriconi, T. Morimoto, T. Mostafavinia, E. Mubarikha, S. Mueseler, S.B. Mukhametshina, G. Münz, M. Mura, S. Murakami, S. Murphy, C.G. Murphy, J. Murphy, V. Myasnyankin, M.J. PO110 PO68, PO70 PO99 PR113 IN35 PO56 PR50, PR120, PR121 PO55 PO106 PO68, PO70 PO99 PO78, PR95 OR51 PO145 PO133 PO116, PR153 PO40 PO44 PO74 PO142 PO104 PR93 PO60 PO104 OR37 PO45, PO115 PO69 PO117 PO97 PR118 IN20 PO56 IN06, OR37 PR87 PO116 PR137 PO58, PO59 PO140 PO62 OR128 PR148 PO72 PO130 PO80 PR126 PO73 PO117 PO108 PO142 PO142 PO43 PR87 PO144 PO135 PR49 PR88 OR51 PO62 PR85 PO145 PO122 PO145 PR111 Nabiço, R. Nagano, O. Nagashima, T. PO78, PR95 PO101 PO80, PO101 Nakai, M. Nakamura, R. Nakamura, S. Namysł-Kaletka, A. Nanni, O. Nasr, O.M. Nayler, S. Neric, D. Neskovic-Konstantinovic, Z. Nighat, S. Nilsson, J. Ninashvili, N. Nishi, T. Nishimura, A. Nishioka, K. Niwa, T. Nobre Carvalho, A. Noma, M. Novikov, S. Nusch, A. PR84 PO72, PO101 PR148 PO100 BP129 PO132 PO108 PO59 PR149 PO97 PO71 PR125 PO76 PO76 PO54 PO54 PO79 PO104 PR136 OR51 O'Connor, M. O'Donoghue, N. Ohtani, S. Okabe, M. Okada, M. Okano, K. O'Leary, C. O'Mahony, D. Onishi, T. O’Reagan, K. O'Reilly, S. Otsuki, H. PO145 PO69 PO53 OR128 PO104 PO76 PO69 PO69, PO145 PR148 PO122 PO69, PO122, PO145 PR93 Pagani, O. Pais, A. Paleari, L. Panaccione, M. Papadopoulos, E. Paredes, J. Parikh, P. M. Park, I.H. Paulin Kosir, M.S. Pazos, I. Pêgo, A. Pereira, J. Perelmuter, V. Perez-Laspiur, J. Pierga, J-Y. Poggio, F. Poletto, E. Policiti, I. Poortmans, P. Portela, C. Pozzi, E. Pramod, S. Pravettoni, G. Pronzato, P. Provinciali, N. Pugliese, P. Puglisi, F. Pulatov, D. Puntoni, M. IN30, PO117 PO68, PO70 BP129 PO43 IN32 PO138 IN35 PR146 PO99 PO68, PO70 PO68, PO70 PO116 PR147 PO133 IN23 PO62 PO62 PO43 IN20 PO78, PR95 PO62 PO47, PR92, PR119 PR124 PO62 IN28, BP129 PO64 PO62 PO114 BP129 Quade, A. Queiróz, L. PO141 PO78 Ramdial, J. Rammohan, P. Ranada, A. A .B. Rashid, A. Ratosa, I. Ratti, V. Rayne, S. Reis, C. Renne, M. Ri, Y. PR118 PO65 IN35 PO97 PO99 PO117 PO106 PO79 BP103 PO57 Author index / The Breast 24 S3 (2015) S78–S81 Ringeisen, F. Risi, E. Riva, S. Rizk Demian, S. Rizzi, G. Ro, J. Rocca, A. Roila, F. Romeira, D. Rossi, G. Rossi, L. Rowe, J. Royce, M. Rugo, H.S. Ruiz, D. Rydén, L. PO56 PO62 PR124 PO132 PO112 PR146 BP129 IN21 PR153 PO112 PO117 PO45, PO115 PO56 IN08, PO112, PO134, PO139 PR118 PO143 Saber, B. Safina, S. Sakakibara, M. Sakamoto, M. Salud Salvia, A. Samame Pérez-Vargas, J.C. Sampayo, I. Sangai, T. Santoriello, A. Sarcevic, A. Sato, M. Schmid, S. Schmitt, F. Schneider, R.J. Schoenfeldt, A. Schötzau, A. Schröder, L. Schweitzer, C. Semiglazov, V. Semiglazov, V. Semiglazova, T. Serrate López, A. Sesek, M. Shah, M.A. Shavdia, M. Shiina, N. Shijijo, S. Shin, K.H. Shirakawa, K. Shockney, L. D. Shunji, K. Madeira, P. Sini, V. Sledge, G.W. Sobhy El Sedafi, A. Solari, N. Soliaman, L. Sottotetti, F. Sousa, D. Sousa, G. Spence, D. Stamatovic, L. Stanic, N. Stockunas, A. Suarez-Arroyo, I.J. Sueoka, S. Sukhotko, A. Sullivan, R. Sundén, M. Sundquist, M. Susnjar, S. Sutliff, M. PO83, PR126 PR88 PO80 PO101 PO142 PO142 PO42 PO80 BP103 PO59 PO131 PO63, PO75, PO81, PR91, PO105 PO138 PO133 PO96 PO75, PO81, PO105 PR151 PO73 PR136 PR136 PR136 PO142 PO99 PO97 PR125 PO72 OR128 PR146 PO54 IN31 PO74 PO68, PO70 PO62 IN36 PO132 BP103 PO77 PO62 PR153 PO68, PO70 PO40 PO140 PO58 PO145 PO133 PO104 PO107 IN33 PO96 PO71 PO58, PO140 PO45, PO115 S81 Swain, S.M. IN03 Tada, K. Tanaka, H. Tanaka, K. Taushanova, M. Taylor, D. Tejler, G. Thorne, S. Thulin, A. Timcheva, K. Todorovic-Rakovic, N. Toh, U. Tomasevic, Z. Tomasevic, Z. Torri, V. Traina, T. Trela-Janus, K. Turkevich, E. Tutt, A. PO54 PR85 PR85 PO82 IN34 PO71 IN05 PO96 PO82 PR149 OR128 PO59 PO58, PO59, PR89 PO64 IN18 PO100 PR136 IN16 Uchida, Y. Uchiyama, A. Ueno, T. Umeda, S. Ushimado, K. Utsumi, T. PO54 PR85 PO130 PR85 PO57 PO57 Vacca, I. Valls, J. Valpione, S. Vanacker, L. Velasco Sánchez, A. Venter, M. Vereshchako, R. Vicente de Paulo, J. Vidal, J. Vidula, N. Vieira, A.F. Volchenko, A.A. Villanueva, C. PO43 PO142 BP103 PR86 PO142 PO108 PO109 PO68 PO142 PO134, PO139 PO138 PO107 PO56 Wakeda, T. Walker, D. Wallberg, M. Walshe, J.M. Warm, M.R. Watanabe, J. Werner-Rönnerman, E. Widera, K. Würstlein, R. Wzietek, I. PO54 PO45, PO115 PO96 PO145 PO141 PO60 PO96 PO98, PO100 IN26, BP52 PO100 Yamada, A. Yamamoto, M. Yamamoto, N. Yamamura, J. Yanwirasti, Yau, C. Yoshida, E. Yoshimura, Y. Yutaka, K. OR128 PO104 PO72, PO101 PO74 PO135 PO134, PO139 PO76 PO53 PO74 Zavyalova, M. Zdravko, Z. Zikiryahodjaev, A. D. Ziliani, S. Zrelykh, L. PR147 PO59 PO107 PO62 PR127 The Breast 24 S3 (2015) S82–S85 Contents lists available at ScienceDirect The Breast j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / b r s t Abstracts List Invited abstracts IN01 IN02 IN03 IN04 IN05 IN06 IN07 IN08 IN09 IN10 IN12 IN13 IN14 IN15 IN16 IN17 IN18 IN19 IN20 IN21 IN22 IN23 IN24 IN25 IN26 IN27 IN28 IN29 IN30 IN31 IN32 IN33 IN34 IN35 ABC3 Award Abstract: Living with metastatic bone disease – the positive impact of bone-targeted treatments Metavivor: Fighting prejudice Is there an optimal treatment sequence for HER2 positive advanced breast cancer? Optimal management of HER-2+ ABC Long term survival with advanced disease. challenges for the patient, their support system and care givers Living on borrowed time: long term responders New drugs, new side effects: endocrine side effects Treatment associated risks: identifying and treating pulmonary toxicity Toxicity of modern immunotherapy approaches The role of patient reported outcomes The role of CDK and PI3K/MTOR inhibitors Revolutionizing ER+ ABC management: ESR1 and other suspects in resistance Is ovarian ablation mandatory in pre-menopausal ER+ ABC patients? Optimal management of triple negative metastatic breast cancer (today) Resurrecting parp inhibition Can immune-based therapies be the key? Triple negative breast cancer: the role of androgen receptor and its inhibitors Imaging receptor expression and glycolytic activity using PET-CT to individualize treatment in metastatic HER2 positive breast cancer (MBC) Towards improved disease outcome combined with a reduction of toxicity using new radiation therapy techniques Optimal management of fatigue Dyspnea: the hardest symptom to control? Circulating tumor cells and tumor DNA: are liquid biopsies a dream? Clonal evolution in breast cancer patients and patient derived xenografts Patient xenograft models: can an "avatar" help? Biopsy, rebiopsy and dealing with discordant results in ABC Advanced breast cancer: is there an optimal sequence of systemic anticancer agents? Duration of first-line chemotherapy in metastatic breast cancer Surgery of the primary tumour: should the recommendation be changed? Survivorship in ABC: which are the main issues? Addressing the emotional needs of patients with advanced metastatic breast cancer Living with MBC is like walking on a tight rope, a balancing act using all resources, to hold on and reach the other end The cost of breast cancer: a global perspective Breast cancer care access and affordability: are drugs the main issue in Europe? Can we really apply international guidelines in limited resources countries? Abstracts - Nursing and Advocacy OR37 BP38 PO39 PO40 PO41 PO42 PO43 PO44 PO45 PO46 PO47 PO48 PR49 PR50 Unmet psychosocial and quality of life needs of patients living with metastatic Metastatic breast cancer in Canada: waiting for treatment Effective advocacy for women with metastatic breast cancer: a European perspective Unmet needs of Australian women with metastatic breast cancer with financially dependent children: the consumer perspective Middle Eastern ABC/MBC Patients: overcoming the triple-burden of stigmatization, lack of information and recurrent illness Make Your Dialogue Count Survey: addressing communication gaps between patients with advanced breast cancer, their caregivers and oncologists and understanding information and emotional needs to improve treatment and side effect management “Fight, live, keep smiling”: the first Italian blog about metastatic breast cancer (MBC) addressed to the general public. A quali-quantitative analysis of all the comments posted online on the blog of the Europa Donna Italia MBC Working Group In Our Shoes: raising the voices of MBC patients Information needs of young women with metastatic breast cancer to manage their treatment, side effects and clinical trials I AM ANNA: Exploring metastatic breast cancer through the eyes of a young woman Identifying deficits and needs from stakeholders about palliative care issues Terminology used in advanced breast cancer and the need for consistency Getting back into life Psychological support to cancer patient through volunteers & survivors 0960-9776/© 2015 Elsevier Ltd. All rights reserved. Abstract list / The Breast 24 S3 (2015) S82–S85 S83 Abstracts – Clinical Issues : Medical Oncology OR51 BP52 PO53 PO54 PO55 PO56 PO57 PO58 PO59 PO60 PO61 PO62 PO63 PO64 PO65 PO66 PO67 PO68 PO69 PO70 PO71 PO72 PO73 PO74 PO75 PO76 PO77 PO78 PO79 PO80 PO81 PO82 PO83 PR84 PR85 PR86 PR87 PR88 PR89 PR90 PR91 PR92 PR93 PR94 PR95 No impact of increasing symptoms on quality of life? Longitudinal data from the German MALIFE-Project on patients receiving monochemo- and endocrine treatment for advanced breast cancer – results from the TMK registry group Is there a different treatment response between visceral and non-visceral metastatic breast cancer: a systematic literature review of registration trials Clinical impact of metronomic oral combination chemotherapy with capecitabine and cyclophosphamide in patients with metastatic breast cancer A retrospective multicenter observation study in metastatic breast cancer patients: comparative analysis on efficacy of eribulin mesylate with taxane regimens (including combination with bevacizumab) Efficacy and safety of eribulin in anthracycline and taxane-pretreated patients: Russian experience BOLERO-4: A phase 2, open-label, multicenter, single-arm trial investigating the efficacy and safety of first-line everolimus (EVE) in combination with letrozole (LET) in postmenopausal patients (pts) with estrogen receptor–positive (ER+), human epidermal growth factor receptor 2–negative (HER2–) metastatic or locally advanced unresectable breast cancer (BC) Clinical efficacy of LH-RH analogue plus aromatase inhibitor in premenopausal women with estrogen receptor–positive advanced breast cancer: a single-institution retrospective study Does previous neoadjuvant/adjuvant trastuzumab influence the disease outcome of metastatic HER2 positive breast cancer patients treated with first line trastuzumab and chemotherapy Durable remissions with trastuzumab treatment for HER2 positive metastatic breast cancer – single center experience The role of lapatinib in the management of HER2-positive metastatic breast cancer: a review of a single institution’s experience during the trastuzumab and lapatinib era Oral vinorelbine in combination with trastuzumab as a first line therapy of metastatic or locally advanced Her2-positive breast cancer First line trastuzumab-based therapy in HER2-positive metastatic breast cancer patients presenting with de novo or recurrent disease: a multicenter retrospective cohort study Cure in metastatic breast cancer: an aggressive approach does not appear to be the key to the black box Metronomic chemotherapy (CHT) combination of vinorelbine (VRL) and capecitabine (CAPE) in HER2- advanced breast cancer (ABC) patients (pts) does not impair Global QoL. First results of the VICTOR-2 study Phase II trial of metronomic combination chemotherapy with oral regimen in heavily pretreated metastatic breast cancer Neoadjuvant chemotherapy for locally advanced breast cancer; a solution to avoid mastectomy Neo-adjuvant hormonal therapy for locally advanced breast cancer Triple negative breast cancer - Neoadjuvant chemotherapy response evaluation with taxane/anthracycline protocol - Single centre 5 years experience. Brachial plexopathy in metastatic breast cancer: a review of patient characteristics and diagnosis in an Irish tertiary referral centre. Estrogen receptor as a negative predictor of complete pathological response in HER2 positive locally advanced breast cancer Monitoring therapy response in metastatic breast cancer using tumour markers CA15-3 and TPS Therapeutic effect prediction based on biomarkers in the pleural effusion specimens of breast cancer patients Outpatient catumaxomab therapy in metastatic breast cancer patients suffering from malignant effusions due to peritoneal or pleural carcinomatosis: a single institution experience Which is more beneficial as an initial therapy for the first distant metastasis of breast cancer: chemotherapy or endocrine therapy for hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer patients?: A single-center study The CTPET/MDST ratio: an introduction of a quantitative measure of effective palliative endocrine therapy in metastatic breast cancer Therapeutic strategy for recurrent HER2-positive breast cancer patients Locally advanced breast cancer in young female. The Egyptian National Cancer Institute experience. Elderly women and breast cancer: characterization of treatment practices Elderly metastatic breast cancer at diagnosis: a single institution experience Elevated neutrophil to lymphocyte ratio predicts worse survival outcome after recurrence for patients with triple negative breast cancer Compliance and persistence to palliative endocrine therapy in metastatic breast cancer epidemiology and therapeutic management of metastatic breast cancer in Bulgaria: A retrospective cohort study Current status of the management of advanced RH+/Her2- breast cancer in Morocco Fulvestrant combined with capecitabine may be effective and well tolerated for patients with estrogen receptor-positive, HER2-negative metastatic breast cancer. Our treatment strategy for patients with hormone-receptor-positive, Her2-positive metastatic breast cancer Retrospective study of everolimus with fulvestrant in postmenopausal women with hormone receptor-positive metastatic breast cancer pretreated with aromatase inhibitors(AI's) and selective estrogen modifiers Combination therapy peruzumab, trastuzumab and docetaxel for advanced or recurrent breast cancer patients in the late line Experience with eribulin in the treatment of metastatic breast cancer in Tatarstan Republic clinical oncological dispensary Inflammatory breast cancer – does dermal lymphatic invasion influence the outcome? Basic clinical issues of inflammatory carcinoma of the breast No palliative systemic antineoplastic therapy in patients with distant metastatic breast cancer: a blind spot in the perception of oncology? National Clinical Breast Cancer Registry: views & approaches The changes of platelet-lymphocyte ratio as a sensitive tumor marker to predict progression in metastatic breast cancer Tumor marker (CA 15-3) monitoring failed to detect disease relapse and triggered unnecessary procedures – report of two cases Paraneoplastic cerebellar degeneration and breast cancer S84 Abstract list / The Breast 24 S3 (2015) S82–S85 Abstracts – Clinical Issues: Radiation Oncology PO96 Characterisation of breast cancer brain metastases through a 21-year period – a study from the Swedish Association of Breast Oncologists (SABO) PO97 Brain metastases in HER2- positive breast cancer patients - a single institute experience PO98 Is brain metastases location associated with prognosis in breast cancer patients? PO99 Treatment outcomes of breast cancer brain metastases PO100 IMRT-SIB for locally advanced inoperable breast cancer patients PO101 Prognostic factors after gamma knife radiosurgery in breast cancer patients with brain metastases PR102 Sternal recurrence in treated patients of advanced stage carcinoma breast - An emerging entity Abstracts – Clinical Issues: Surgical Oncology BP103 PO104 PO105 PO106 PO107 PO108 PO109 PO110 PR111 Electrochemotherapy in the treatment of cutaneous metastases from breast cancer: a multicenter cohort analysis The surgical management of lung nodules in breast cancer patients Success and failure of primary medical, non-operative management in patients who present with stage IV breast cancer N2 lymph nodes post-primary chemotherapy may predict recurrence in locally advanced breast cancer Surgical resection of the primary tumor is associated with increased long-term survival in patients with stage IV breast cancer Novel and safe techniques in immediate breast reconstruction for locally advanced breast cancer particularly inflammatory breast cancer The impact of locoregional treatment of primary metastatic breast cancer Metastases of lobular breast carcinoma in the terminal ileum and ileocaecal valve Surgical treatment of advanced breast cancer. Urgency of the problem Abstracts – Clinical Issues: Supportive and Palliative Care PO112 PR113 PO114 PO115 PO116 PO117 PR118 PR119 PR120 PR121 Efficacy of NEPA, the first combination antiemetic agent, in patients with breast cancer receiving anthracycline/cyclophosphamide (AC) or non-AC chemotherapy Comparative assessment of analgesic therapy in patients with breast cancer in the terminal stage Using of hepatoprotectors in the drug treatment of patients with advanced breast cancer The emotional toll of metastatic breast cancer on young women The last quarter of a honeymoon – A wedding’s story Can we make a portrait of women with inoperable locally advanced breast cancer? The experience of the Breast Unit of Southern Switzerland (CSSI) Comparison of integrative care expectations between breast cancer patients and breast oncology physicians in an ethnically diverse population Sensitizing Primary healthcare workers towards psychosocial issues of breast-cancer patients Difficulties in providing palliative care in rural India (West Bengal) – experience of an NGO Telephonic communication in palliative care for better management of terminal cancer patients in rural India– an NGO based approach Abstracts – Clinical Issues: Other Topics PO122 PR123 PR124 PR125 PR126 PR127 Sodium fluoride PET/CT: a superior imaging modality in evaluation of osseous metastatic disease Patients’ own decision about becoming aware of recurrence earlier Rumination and cancer disease: a cross-sectional study in a cohort of patients with breast and lung cancer Some patterns of breast cancer epidemiology Access to care for advanced breast cancer in middle-income country: example of Morocco Changes of statistics of breast cancer in Ukraine during the period of 2003-2013 Abstracts – Basic and Translational Research OR128 CTL and IgG response to tumor-associated antigens as predictive factors of therapeutic peptide vaccination for patients with metastatic recurrent breast cancer BP129 Insulin resistance (IR) and prognosis of metastatic breast cancer (MBC) patients PO130 Clinical utility of the expression of HER3, HER4, PTEN and IGF1R in HER2-positive advanced or metastatic breast cancer PO131 Heterogeneity in the expression of hormone receptors and HER2 between the primary breast cancer and pulmonary metastasis. PO132 Apoptotic activities of recombinant cell surface receptor fas within tumor microenvironment of breast carcinoma PO133 Differential expression of plasma membrane proteins in inflammatory breast cancer via stable isotope labeled amino acids in culture (SILAC) PO134 Analysis of primary breast cancer (BC) expression of programmed cell death 1 (PD-1) receptor and programmed death ligand 1 (PD-L1) to determine associations with clinical characteristics and outcomes PO135 At a glance the BRCAs epigenetic study in Padang, West Sumatera, Indonesia PR136 Predictive value of mRNA expression of TUBIII gene in the treatment of locally advanced breast cancer PR137 Contradictories in vitamin D supplementation on gene expression of microRNAs involving in breast carcinogenesis PO138 P-cadherin: a candidate biomarker for axillary-based breast cancer decisions in clinical practice PO139 Receptor activator of nuclear factor kappa B (RANK) expression in primary breast cancer correlates with recurrence free survival and development of bone metastases in the I-SPY 1 trial (CALGB 150007/150012; ACRIN 6657) Abstract list / The Breast 24 S3 (2013) S82–S85 S85 PO140 Changing in tumor biology of triple negative breast cancer between primary and metastatic lesions PO141 Successful use of HER2 targeted agents in patients with heavily pretreated HER2-negative metastatic breast cancer presenting with elevated serum levels of the HER2 extracellular domain and/or HER2 overexpressing circulating tumor cells PO142 Evolution of the expression of circulating tumor cells (CTC) and CK-19 mRNA (CK19) as prognostic factors in heavily pretreated metastatic breast cancer PO143 Prognostic impact of circulating tumor cell clusters and apoptosis in metastatic breast cancer PO144 Synergistic antitumor effects of crocin combined with hyperthermia on breast cancer cells PO145 ICORG 13-01 ABC survey: are we meeting the needs of patients with advanced breast cancer (ABC) in Ireland? A nationwide survey PR146 Locoregional recurrence by tumor biology in breast cancer patients after preoperative chemotherapy and breast conservation treatment PR147 Intratumoral morphological heterogeneity of breast cancer and its implication in chemotherapy resistance PR148 Androgen receptor (AR) expression as a promising index of the prediction of distant metastasis of triple negative breast cancer (TNBC) PR149 Prognostic significance of Ki67 protein expression in metastatic breast cancer survival PR150 Prognostic impact of 25-hydroxyvitamin D levels in Egyptian patients with breast cancer PR151 Effects of phytoestrogen extracts isolated from elder flower on hormone production and receptor expression of trophoblast tumour cells JEG-3 and BeWo, as well as MCF-7 breast cancer cells PR152 Is NGS still efficient in finding new genes for breast cancer? PR153 Vitamin D importance in the oncology consultation for the breast cancer’s patient PR154 Evaluation of cardiotoxicity in breast cancer patients with human epidermal growth factor receptor-2 overexpression undergoing trasuzumab treatment