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
 
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BYLieve: A phase II study of alpelisib (ALP) with fulvestrant (FUL) or letrozole (LET) for treatment of PIK3CA mutant, hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2–) advanced breast cancer (aBC) progressing on/after cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) therapy.
 
Hope S. Rugo
Honoraria - Genomic Health
Consulting or Advisory Role - Amgen
Speakers' Bureau - Genomic Health
Research Funding - Eisai (Inst); Genentech (Inst); GTx (Inst); Immunomedics (Inst); Incyte (Inst); Lilly (Inst); Macrogenics (Inst); Merck (Inst); Novartis (Inst); OBI Pharma (Inst); Pfizer (Inst); Plexxikon (Inst)
Travel, Accommodations, Expenses - Mylan; Novartis; OBI Pharma; Pfizer; Puma Biotechnology; Roche/Genentech
 
Giulia Valeria Bianchi
No Relationships to Disclose
 
Stephen K. L. Chia
Honoraria - Genomic Health; Novartis
Consulting or Advisory Role - Novartis; Pfizer; Roche
Research Funding - AstraZeneca (Inst); Genentech (Inst); Genomic Health (Inst); Novartis (Inst); Roche (Inst)
 
Nicholas C. Turner
Consulting or Advisory Role - AstraZeneca; Novartis; Pfizer; Puma Biotechnology; Roche; Synthon; Tesaro
Research Funding - AstraZeneca (Inst); Bio-Rad (Inst); Clovis Oncology (Inst); Inivata (Inst); Pfizer (Inst); Roche (Inst)
 
Dejan Juric
Consulting or Advisory Role - Eisai; EMD Serono; Genentech; Novartis
Research Funding - Eisai (Inst); EMD Serono (Inst); Genentech (Inst); Novartis (Inst); Takeda (Inst); Verastem (Inst)
 
William Jacot
Honoraria - Pierre Fabre
Consulting or Advisory Role - Pfizer; Roche
Research Funding - AstraZeneca (Inst)
 
Manuel Ruiz Borrego
No Relationships to Disclose
 
Linnea I. Chap
Honoraria - Genentech
Consulting or Advisory Role - Pfizer
Speakers' Bureau - Genentech
Research Funding - Novartis (Inst)
Travel, Accommodations, Expenses - Genentech; Pfizer
 
Ursa Abigail Brown-Glaberman
No Relationships to Disclose
 
Carolyn C. Nienstedt
Employment - Novartis
Stock and Other Ownership Interests - Novartis
 
Nikos Sophos
Employment - Novartis
 
Antonia Ridolfi
Employment - Novartis
 
Chinjune Lin
Employment - Novartis
Stock and Other Ownership Interests - Novartis
 
Eva Ciruelos
No Relationships to Disclose