The following represents disclosure information provided by authors of this abstract. The program committee has reviewed all presenting author disclosure reports, identified potential conflicts of interest, and implemented strategies to manage those areas of conflict, where appropriate. All relationships are considered compensated. Relationships are self-held unless otherwise noted. I = Immediate Family Member, Inst = My Institution
 
Open Payments is a public database containing information reported by companies about payments made to US-licensed physicians (Open Payments)
 
 
Employment - Merck
 
Employment - Seagen
Phase 3 study of tucatinib or placebo in combination with trastuzumab and pertuzumab as maintenance therapy for HER2+ metastatic breast cancer (HER2CLIMB-05, trial in progress).
 
Erika P. Hamilton
Consulting or Advisory Role - Arcus Biosciences (Inst); Arvinas (Inst); AstraZeneca (Inst); Black Diamond Therapeutics (Inst); Boehringer Ingelheim (Inst); CytomX Therapeutics (Inst); Daiichi Sankyo (Inst); Dantari (Inst); Deciphera (Inst); Eisai (Inst); Genentech/Roche (Inst); H3 Biomedicine (Inst); ITeos Therapeutics (Inst); Janssen (Inst); Lilly (Inst); Loxo (Inst); Merck (Inst); Mersana (Inst); Novartis (Inst); Pfizer (Inst); Puma Biotechnology (Inst); Relay Therapeutics (Inst); Seagen (Inst); Silverback Therapeutics (Inst)
Research Funding - Abbvie (Inst); Acerta Pharma (Inst); ADC Therapeutics (Inst); Akeso Biopharma (Inst); Amgen (Inst); Aravive (Inst); ArQule (Inst); Arvinas (Inst); AstraZeneca (Inst); AtlasMedx (Inst); Black Diamond Therapeutics (Inst); Boehringer Ingelheim (Inst); Clovis Oncology (Inst); Compugen (Inst); Curis (Inst); CytomX Therapeutics (Inst); Daiichi Sankyo (Inst); Dana Farber Cancer Hospital (Inst); Deciphera (Inst); eFFECTOR Therapeutics (Inst); Ellipses Pharma (Inst); EMD Serono (Inst); Fochon Pharmaceuticals (Inst); Fujifilm (Inst); G1 Therapeutics (Inst); Genentech/Roche (Inst); H3 Biomedicine (Inst); Harpoon (Inst); Hutchison MediPharma (Inst); Immunogen (Inst); Immunomedics (Inst); Incyte (Inst); InventisBio (Inst); Jacobio (Inst); Karyopharm Therapeutics (Inst); Leap Therapeutics (Inst); Lilly (Inst); Lycera (Inst); MabSpace Biosciences (Inst); Macrogenics (Inst); MedImmune (Inst); Merck (Inst); Mersana (Inst); Merus (Inst); Millennium (Inst); Molecular Templates (Inst); Myriad Genetics (Inst); Novartis (Inst); Nucana (Inst); Olema Pharmaceuticals (Inst); OncoMed (Inst); Onconova Therapeutics (Inst); ORIC Pharmaceuticals (Inst); Orinove (Inst); Pfizer (Inst); PharmaMar (Inst); Pieris Pharmaceuticals (Inst); Pionyr (Inst); Plexxikon (Inst); Radius Health (Inst); Regeneron (Inst); Repertoire Immune Medicines (Inst); Rgenix (Inst); Seagen (Inst); Sermonix Pharmaceuticals (Inst); Shattuck Labs (Inst); Silverback Therapeutics (Inst); Stem CentRx (Inst); Sutro Biopharma (Inst); Syndax (Inst); Syros Pharmaceuticals (Inst); Taiho Pharmaceutical (Inst); TapImmune Inc. (Inst); Tesaro (Inst); Treadwell Therapeutics (Inst); Verastem (Inst); Vincerx Pharma (Inst); Zenith Epigenetics (Inst); Zymeworks (Inst)
 
Ciara Catherine Maria O'Sullivan
Honoraria - Seagen (Inst)
Research Funding - Bavarian Nordic (Inst); Biovica (Inst); Lilly (Inst); Minneamrita Therapeutics (Inst); Seagen (Inst)
 
Miguel Martin
Honoraria - Lilly; Novartis; Pfizer; Pierre Fabre; Roche/Genentech; Seagen
Consulting or Advisory Role - AstraZeneca; Daiichi-Sankyo; Lilly; Novartis; Pfizer; Roche/Genentech
Speakers' Bureau - Lilly/ImClone; Lilly/ImClone; Pierre Fabre; Roche/Genentech
Research Funding - Novartis (Inst); Puma Biotechnology (Inst); Roche (Inst)
Other Relationship - Novartis; Roche
 
Joohyuk Sohn
Research Funding - AstraZeneca (Inst); Boehringer Ingelheim (Inst); Daiichi Sankyo (Inst); GlaxoSmithKline (Inst); Lilly (Inst); MSD (Inst); Novartis (Inst); Pfizer (Inst); Roche (Inst); Sanofi (Inst)
Other Relationship - Roche
 
Konstantinos Tryfonidis
No Relationships to Disclose
 
Libero Santarpia
No Relationships to Disclose
 
Shan Yang
Employment - Seagen
 
Veronique C Dieras
Honoraria - ABBVIE/ABBOTT; AstraZeneca; Daiichi Sankyo; Eisai Europe; Gilead Sciences; Lilly; MSD Oncology; Novartis; Pfizer; Pierre Fabre; Roche/Genentech; Seagen
Consulting or Advisory Role - ABBVIE/ABBOTT; AstraZeneca; Daiichi Sankyo Europe GmbH; Eisai Europe; Gilead Sciences; Lilly; MSD Oncology; Novartis; Pfizer; Pierre Fabre; Roche/Genentech; Seagen
Travel, Accommodations, Expenses - AstraZeneca; Daiichi Sankyo Europe GmbH; Gilead Sciences; Lilly; Novartis; Pfizer; Roche; Seagen