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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Use of baseline plasma circulating tumor DNA (ctDNA) to predict duration of endocrine therapy (ET) and CDK4/6 inhibitor (CDK4/6i) therapy (tx) and to analyze intrinsic vs acquired endocrine resistance.
 
Pietro De Placido
No Relationships to Disclose
 
Melissa Hughes
No Relationships to Disclose
 
Caroline Weipert
Employment - Guardant Health
Stock and Other Ownership Interests - Guardant Health
 
Sarah Sammons
Consulting or Advisory Role - AstraZeneca; Daiichi Sankyo; Foundation Medicine; Incyclix Bio; Loxo/Lilly; Novartis; Pfizer; Relay Therapeutics; Sermonix Pharmaceuticals
Research Funding - AstraZeneca/MedImmune (Inst); Lilly (Inst); Relay Therapeutics (Inst); Relay Therapeutics (Inst); Seagen (Inst); Sermonix Pharmaceuticals (Inst)
 
Stefania Morganti
Honoraria - Remedy Health; WebMD/Medscape
Travel, Accommodations, Expenses - AstraZeneca; Menarini
 
Heather Parsons
Honoraria - Guardant Health
Consulting or Advisory Role - AstraZeneca; Caris Life Sciences; Daiichi Sankyo/UCB Japan; Natera; SAGA Diagnostics; Sermonix Pharmaceuticals
Research Funding - GlaxoSmithKline (Inst); Merck (Inst); Seagen (Inst)
(OPTIONAL) Uncompensated Relationships - NeoGenomics Laboratories
 
Daniel Abravanel
Consulting or Advisory Role - American Jounal of Managed Care
 
Antonio Giordano
Consulting or Advisory Role - Pfizer; Pfizer; Pfizer; Pfizer
Research Funding - Cardiff Oncology (Inst)
Travel, Accommodations, Expenses - Pfizer
 
Kalie Smith
No Relationships to Disclose
 
Ashka Patel
Employment - Natera
Stock and Other Ownership Interests - Natera
 
Gregory Kirkner
No Relationships to Disclose
 
Catherine Stever
No Relationships to Disclose
 
Georgia Suggs
No Relationships to Disclose
 
Kerry Sendrick
No Relationships to Disclose
 
Craig Snow
No Relationships to Disclose
 
Eric Winer
No Relationships to Disclose
 
Sara Tolaney
Consulting or Advisory Role - AADi; Ambrx; Artios Biopharmaceuticals; Arvinas; AstraZeneca; Bayer; BeiGene; Bicycle Therapeutics; BioNTech; Blueprint Medicines; Bristol-Myers Squibb; Circle Pharma; Cullinan Oncology; Daiichi Sankyo; eFFECTOR Therapeutics; Eisai; Genentech; Hengrui Pharmaceutical (USA); Immunomedics/Gilead; Incyte; Jazz Pharmaceuticals; Johnson & Johnson; Launch Therapeutics; Lilly; Menarini Group; Merck; Mersana; Natera; Novartis; Pfizer; Reveal Genomics; Sanofi; Seagen; Sumitovant Biopharma; Summit Therapeutics; Systimmune; Tango Therapeutics; Zentalis; Zuellig Pharma; Zymeworks
Research Funding - AstraZeneca (Inst); Bristol-Myers Squibb (Inst); Daiichi Sankyo; Eisai (Inst); Exelixis (Inst); Genentech/Roche (Inst); Gilead Sciences (Inst); Jazz Pharmaceuticals (Inst); Lilly (Inst); Menarini/Stemlin (Inst); Merck (Inst); NanoString Technologies (Inst); Novartis (Inst); OncoPep (Inst); Pfizer (Inst); Seagen (Inst)
Travel, Accommodations, Expenses - Arvinas; Gilead Sciences; Jazz Pharmaceuticals; Lilly; Pfizer; Sanofi
(OPTIONAL) Uncompensated Relationships - AstraZeneca; Gilead Sciences
 
Nancy Lin
Stock and Other Ownership Interests - Artera
Consulting or Advisory Role - Artera; AstraZeneca; Blueprint Medicines; Daiichi Sankyo; Eisai; Johnson & Johnson/Janssen; Menarini; Olema Pharmaceuticals; Pfizer; Seagen
Research Funding - Genentech (Inst); Merck (Inst); Olema Pharmaceuticals (Inst); Pfizer (Inst); Seagen (Inst); Zion Pharma (Inst)
Patents, Royalties, Other Intellectual Property - Royalties for chapter in Up-to-Date regarding management of breast cancer brain metastases; Royalties, Jones & Bartlett
Travel, Accommodations, Expenses - AstraZeneca; Olema Pharmaceuticals
 
Rinath Jeselsohn
Consulting or Advisory Role - AstraZeneca; Carrick Therapeutics; Lilly; Novartis; Pfizer
Research Funding - Lilly; Novartis; Pfizer