Update Breast Cancer 2021 Part 5 - Advanced Breast Cancer.

Despite the COVID 19 pandemic and mostly virtual congresses, innovation in the treatment of breast cancer patients continues at an unabated pace. This review summarises the current developments. Initial overall survival data for CDK4/6 inhibitor treatment in combination with an aromatase inhibitor as the first advanced line of therapy in treatment-naive postmenopausal patients have been published. Similarly, a trial comparing trastuzumab-deruxtecan versus trastuzumab-emtansine revealed a clear benefit regarding progression-free survival. Understanding of biomarkers making checkpoint inhibitor therapy particularly effective is increasing, and new compounds such as oral selective estrogen receptor destabilisers (SERDs) are entering clinical development and completing the first phase III trials.
Competing Interests: Conflict of Interest/Interessenkonflikt B. A. received honoria and travel grants from AstraZeneca, Gilead, Genomic Health, Roche, Novartis, Celgene, Lilly, MSD, Eisai, Teva, Tesaro, Daiichi Sankyo and Pfizer. E. B. received honoraria from Novartis, Hexal, BMS, Lilly, Pfizer, Roche, MSD, BBraun and onkowissen.de for consulting, clinical research management or medical education activities. S. B. has no conflict of interest. N. D. has received honoraria from MSD, Roche, AstraZeneca, Teva, Pfizer, Novartis, Seagen,Gilead, MCI Healthcare. P. A. F. reports personal fees from Novartis, grants from Biontech, personal fees from Pfizer, personal fees from Daiichi Sankyo, personal fees from AstraZeneca, personal fees from Eisai, personal fees from Merck Sharp & Dohme, grants from Cepheid, personal fees from Lilly, personal fees from Pierre Fabre, personal fees from SeaGen, personal fees from Roche, personal fees from Hexal, personal fees from Agendia, personal fees from Gilead. T. N. F. has participated on advisory boards for Amgen, Daiichi Sankyo, Novartis, Pfizer, and Roche and has received honoraria for lectures from Amgen, Celgene, Daiichi Sankyo, Roche, Novartis and Pfizer. A. D. H. received speaker and consultancy honoraria from AstraZeneca, Genomic Health, Roche, Novartis, Celgene, Lilly, MSD, Eisai, Teva, Tesaro, Daiichi Sankyo, Hexal and Pfizer. W. J. has received research grants and/or honoraria from Sanofi-Aventis, Daiichi Sankyo, Novartis, Roche, Pfizer, Lilly, AstraZeneca, Chugai, GSK, Eisai, Cellgene and Johnson & Johnson. C. K.-L. has received honoraria from Roche, AstraZeneca, Celgene, Novartis, Pfizer, Lilly, Hexal, Amgen, Eisai, and SonoScape, honoraria for consultancy from Phaon Scientific, Novartis, Pfizer, and Celgene, research funding from Roche, Novartis, and Pfizer, and travel grants from Novartis and Roche. H.-C. K. has received honoraria from Pfizer, Novartis, Roche, Genomic Health/Exact Sciences, Amgen, AstraZeneca, Riemser, Carl Zeiss Meditec, Teva, Theraclion, Janssen-Cilag, GSK, LIV Pharma, Lily, SurgVision, Onkowissen and MSD, travel support from Carl Zeiss Meditec, LIV Pharma, Novartis, Amgen, Pfizer, Daiichi Sankyo, Tesaro and owns stock of Theraclion SA and Phaon Scientific GmbH. D. L. received honoraria from Amgen, AstraZeneca, Eli Lilly, GSK, Loreal, MSD, Novartis, Pfizer, Teva. M. P. L. has participated on advisory boards for AstraZeneca, Lilly, MSD, Novartis, Pfizer, Eisai, Gilead, Exact Sciences, Pierre Fabre, Grünenthal, Daiichi Sankyo, PharmaMar and Roche and has received honoraria for lectures from MSD, Lilly, Roche, Novartis, Pfizer, Exact Sciences, Daiichi Sankyo, Grünenthal, Gilead, AstraZeneca, and Eisai. He is editorial board member of medactuell from medac. V. M. received speaker honoraria from Amgen, AstraZeneca, Daiichi Sankyo, Eisai, Pfizer, MSD, Novartis, Roche, Teva, Seattle Genetics and consultancy honoraria from Genomic Health, Hexal, Roche, Pierre Fabre, Amgen, ClinSol, Novartis, MSD, Daiichi Sankyo, Eisai, Lilly, Tesaro, Seattle Genetics and Nektar. Institutional research support from Novartis, Roche, Seattle Genetics, Genentech. Travel grants: Roche, Pfizer, Daiichi Sankyo. E. S. received honoraria from Roche, Celgene, AstraZeneca, Novartis, Pfizer, Tesaro, Aurikamed GmbH, MCI Deutschland GmbH, bsh medical communications GmbH, Onkowissen TV. A. S. received research grants from Celgene, Roche, honoraria from Amgen, AstraZeneca, Aurikamed, Bayer, Celgene, Clinsol, Connectmedica, Gilead, GSK, I-MED, Lilly, MCI Deutschland, Metaplan, MSD, Nanostring, Novartis, Onkowissen.de, Promedicis, Pfizer, Pierre Fabre, Roche, Seagen, Streamedup, Teva, Tesaro, Thieme and travel support from Celgene, Pfizer, Roche. F. S. participated on advisory boards for Novartis, Lilly, Amgen and Roche and received honoraria for lectures from Roche, AstraZeneca, MSD, Novartis and Pfizer. H. T. received honoraria from Novartis, Roche, Celgene, Teva, Pfizer, Astra Zeneca and travel support from Roche, Celgene and Pfizer. C. T. received honoraria for advisory boards and lectures from Amgen, AstraZeneca, Celgene, Daiichi Sankyo, Eisai, Gilead, Lilly, MSD, Mylan, Nanostring, Novartis, Pfizer, Pierre Fabre, Puma, Roche, Seagen, Vifor. M. T. has participated on advisory boards for AstraZeneca, Clovis, Daiichi Sankyo, Eisai, Gilead Science, GSK, Lilly, MSD, Novartis, Organon, Pfizer, Exact Sciences, Pierre-Fabre, Seagen and Roche and has received honoraria for lectures from Clovis, Daiichi Sankyo, Eisai, GSK, Lilly, MSD, Roche, Novartis, Organon, Pfizer, Seagen, Exact Sciences, Viatris, and AstraZeneca and has received trial funding by Exact Sciences and Endomag. Manuscript support was done by Amgen, Celgene, ClearCut, pfm medical, Roche, Servier. M. U. all honoraria went to the institution/employer: Abbvie, Amgen, Astra Zeneca, Celgene, Daichi Sankyo, Eisai, Lilly, MSD Merck, Mundipharma, Myriad Genetics, Pfizer, PUMA Biotechnology, Roche, Sanofi Aventis, Novartis, Pierre Fabre. M. W. has participated on advisory boards for AstraZeneca, Lilly, MSD, Novartis, Pfizer and Roche. A. W. participated on advisory boards for Novartis, Lilly, Amgen, Pfizer, Roche, Tesaro, Eisai and received honoraria for lectures from Novartis, Pfizer, Aurikamed, Roche, Celgene. R. W. has received personal fees/travel support from Agendia, Amgen, Aristo, AstraZeneca, Boeringer Ingelheim, Carl Zeiss, Celgene, Clinsol, Daiichi Sankyo, Eisai, Exact Sciences, Genomic Health, GlaxoSmithKline, Hexal, Lilly, Medstrom Medical, MSD, Mundipharma, Nanostring, Novartis, Odonate, Paxman, Palleos, Pfizer, Pierre Fabre, PumaBiotechnology, Riemser, Roche, Sandoz/Hexal, Seattle Genetics, Tesaro Bio, Teva, Veracyte and Viatris./ B. A. erhielt Honorare und Reisekostenzuschüsse von AstraZeneca, Gilead, Genomic Health, Roche, Novartis, Celgene, Lilly, MSD, Eisai, Teva, Tesaro, Daiichi Sankyo und Pfizer. E. B. erhielt Honorare von Novartis, Hexal, BMS, Lilly, Pfizer, Roche, MSD, BBraun und onkowissen.de für Beratung, klinisches Forschungsmanagement bzw. medizinische Fortbildungsaktivitäten. S. B. gibt keinen Interessenkonflikt an. N. D. erhielt Honorare von MSD, Roche, AstraZeneca, Teva, Pfizer, Novartis, Seagen, Gilead, MCI Healthcare. P. A. F. erhielt persönliche Honorare von Novartis, Zuschüsse von Biontech, persönliche Honorare von Pfizer, persönliche Honorare von Daiichi Sankyo, persönliche Honorare von AstraZeneca, persönliche Honorare von Eisai, persönliche Honorare von Merck Sharp & Dohme, Zuschüsse von Cepheid, persönliche Honorare von Lilly, persönliche Honorare von Pierre Fabre, persönliche Honorare von SeaGen, persönliche Honorare von Roche, persönliche Honorare von Hexal, persönliche Honorare von Agendia, persönliche Honorare von Gilead. T. N. F. war für Amgen, Daiichi Sankyo, Novartis, Pfizer und Roche in Beratungsgremien tätig und erhielt für Vortragstätigkeit Honorare von Amgen, Celgene, Daiichi Sankyo, Roche, Novartis und Pfizer. A. D. H. erhielt für Vortrags- und Beratertätigkeiten Honorare von AstraZeneca, Genomic Health, Roche, Novartis, Celgene, Lilly, MSD, Eisai, Teva, Tesaro, Daiichi Sankyo, Hexal und Pfizer. W. J. hat Forschungszuschüsse und/oder Honorare von Sanofi-Aventis, Daiichi Sankyo, Novartis, Roche, Pfizer, Lilly, AstraZeneca, Chugai, GSK, Eisai, Cellgene und Johnson & Johnson erhalten. C. K.-L. erhielt Honorare von Roche, AstraZeneca, Celgene, Novartis, Pfizer, Lilly, Hexal, Amgen, Eisai und SonoScape, Honorare für Beratungstätigkeit von Phaon Scientific, Novartis, Pfizer und Celgene, Forschungsgelder von Roche, Novartis und Pfizer sowie Reisekostenzuschüsse von Novartis und Roche. H.- C. K. hat Honorare von Pfizer, Novartis, Roche, Genomic Health/Exact Sciences, Amgen, AstraZeneca, Riemser, Carl Zeiss Meditec, Teva, Theraclion, Janssen-Cilag, GSK, LIV Pharma, Lily, SurgVision, Onkowissen und MSD erhalten, Reiseunterstützung von Carl Zeiss Meditec, LIV Pharma, Novartis, Amgen, Pfizer, Daiichi Sankyo, Tesaro und besitzt Aktien von Theraclion SA und Phaon Scientific GmbH. D. L. erhielt Honorare von Amgen, AstraZeneca, Eli Lilly, GSK, Loreal, MSD, Novartis, Pfizer und Teva. M. P. L. war in Beiräten für AstraZeneca, Lilly, MSD, Novartis, Pfizer, Eisai, Gilead, Exact Sciences, Pierre Fabre, Grünenthal, Daiichi Sankyo, PharmaMar und Roche tätig und erhielt Honorare für Vortragstätigkeit von MSD, Lilly, Roche, Novartis, Pfizer, Exact Sciences, Daiichi Sankyo, Grünenthal, Gilead, AstraZeneca und Eisai. Er ist Redaktionsmitglied bei medactuell von medac. V. M. erhielt Honorare für Vortragstätigkeit von Amgen, AstraZeneca, Daiichi Sankyo, Eisai, Pfizer, MSD, Novartis, Roche, Teva, Seattle Genetics und Honorare für Beratungstätigkeit von Genomic Health, Hexal, Roche, Pierre Fabre, Amgen, ClinSol, Novartis, MSD, Daiichi Sankyo, Eisai, Lilly, Tesaro, Seattle Genetics und Nektar. Institutionelle Forschungsunterstützung von Novartis, Roche, Seattle Genetics, Genentech. Reisekostenzuschüsse: Roche, Pfizer, Daiichi Sankyo. E. S. erhielt Honorare von Roche, Celgene, AstraZeneca, Novartis, Pfizer, Tesaro, Aurikamed GmbH, MCI Deutschland GmbH, bsh medical communications GmbH, Onkowissen TV. A. S. erhielt Forschungszuschüsse von Celgene, Roche, Honorare von Amgen, AstraZeneca, Aurikamed, Bayer, Celgene, Clinsol, Connectmedica, Gilead, GSK, I-MED, Lilly, MCI Deutschland, Metaplan, MSD, Nanostring, Novartis, Onkowissen.de, Promedicis, Pfizer, Pierre Fabre, Roche, Seagen, Streamedup, Teva, Tesaro, Thieme und Reiseunterstützung von Celgene, Pfizer, Roche. F. S. war in Beiräten für Novartis, Lilly, Amgen und Roche tätig und erhielt Honorare für Vortragstätigkeit von Roche, AstraZeneca, MSD, Novartis und Pfizer. H. T. erhielt Honorare von Novartis, Roche, Celgene, Teva, Pfizer, AstraZeneca und Reisekostenunterstützung von Roche, Celgene und Pfizer. C. T. erhielt Honorare für Beratungsgremien und Vorträge von Amgen, AstraZeneca, Celgene, Daiichi Sankyo, Eisai, Gilead, Lilly, MSD, Mylan, Nanostring, Novartis, Pfizer, Pierre Fabre, Puma, Roche, Seagen, Vifor. M. T . war in Beiräten für AstraZeneca, Clovis, Daiichi Sankyo, Eisai, Gilead Science, GSK, Lilly, MSD, Novartis, Organon, Pfizer, Exact Sciences, Pierre-Fabre, Seagen und Roche tätig und erhielt Honorare für Vorträge von Clovis, Daiichi Sankyo, Eisai, GSK, Lilly, MSD, Roche, Novartis, Organon, Pfizer, Seagen, Exact Sciences, Viatris und AstraZeneca und erhielt Studienfinanzierung von Exact Sciences und Endomag. Das Manuskript wurde von Amgen, Celgene, ClearCut, pfm medical, Roche und Servier unterstützt. M. U. alle Honorare gingen an die Einrichtung/den Arbeitgeber: Abbvie, Amgen, AstraZeneca, Celgene, Daiichi Sankyo, Eisai, Lilly, MSD Merck, Mundipharma, Myriad Genetics, Pfizer, PUMA Biotechnology, Roche, Sanofi Aventis, Novartis, Pierre Fabre. M. W. hat in Beiräten für AstraZeneca, Lilly, MSD, Novartis, Pfizer und Roche mitgewirkt. A. W. war in Beiräten für Novartis, Lilly, Amgen, Pfizer, Roche, Tesaro, Eisai tätig und erhielt Honorare für Vortragstätigkeit von Novartis, Pfizer, Aurikamed, Roche, Celgene. R. W. hat persönliche Honorare/Reiseunterstützung erhalten von Agendia, Amgen, Aristo, AstraZeneca, Boeringer Ingelheim, Carl Zeiss, Celgene, Clinsol, Daiichi Sankyo, Eisai, Exact Sciences, Genomic Health, GlaxoSmithKline, Hexal, Lilly, Medstrom Medical, MSD, Mundipharma, Nanostring, Novartis, Odonate, Paxman, Palleos, Pfizer, Pierre Fabre, Puma Biotechnology, Riemser, Roche, Sandoz/Hexal, Seattle Genetics, Tesaro Bio, Teva, Veracyte und Viatris.
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