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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Preliminary results from a phase 1 study of AC699, an orally bioavailable chimeric estrogen receptor degrader, in patients with advanced or metastatic breast cancer.
 
Manish R. Patel
Leadership - ION Pharma
Honoraria - Janssen Oncology
Consulting or Advisory Role - Accutar Biotech; Daiichi Sankyo/UCB Japan; Kura Oncology; Olema Pharmaceuticals
Research Funding - Accutar Biotech (Inst); Accutar Biotech (Inst); Acerta Pharma (Inst); Adagene (Inst); ADC Therapeutics (Inst); Agenus (Inst); Allorion Therapeutics (Inst); Artios (Inst); Artios (Inst); Artios (Inst); Artios (Inst); Astellas Pharma (Inst); AstraZeneca (Inst); BioNTech (Inst); BioTheryX (Inst); BioTheryX (Inst); Blueprint Medicines (Inst); Boehringer Ingelheim (Inst); Bristol-Myers Squibb/Celgene (Inst); Celgene (Inst); Compugen (Inst); Compugen (Inst); Conjupro Biotherapeutics (Inst); Cullinan Oncology (Inst); cyteir (Inst); Daiichi Sankyo (Inst); Erasca, Inc (Inst); Genentech/Roche (Inst); Georgiamune (Inst); Gilead Sciences (Inst); GlaxoSmithKline (Inst); H3 Biomedicine (Inst); Hengrui Therapeutics (Inst); Hotspot Therapeutics (Inst); Hutchison MediPharma (Inst); Immune-Onc Therapeutics (Inst); Immunitas (Inst); Immunogen (Inst); Incyte (Inst); Janssen (Inst); Kineta (Inst); Klus Pharma (Inst); Kura Oncology (Inst); Kymab (Inst); Lilly (Inst); Loxo (Inst); LSK BioPharma (Inst); MabSpace Biosciences (Inst); MabSpace Biosciences (Inst); Macrogenics (Inst); Merck (Inst); Millennium (Inst); Moderna Therapeutics (Inst); Novartis (Inst); Novartis (Inst); Novartis (Inst); nurix (Inst); Nurix (Inst); Olema Oncology (Inst); ORIC Pharmaceuticals (Inst); ORIC Pharmaceuticals (Inst); Pfizer (Inst); Pionyr (Inst); Prelude Therapeutics (Inst); Puretech (Inst); PureTech (Inst); PureTech (Inst); Ribon Therapeutics (Inst); Ribon Therapeutics (Inst); Seven and Eight Biopharmaceuticals (Inst); Step Pharma (Inst); Syndax (Inst); Syndax (Inst); Taiho Pharmaceutical (Inst); TeneoBio (Inst); Tesaro (Inst); Treadwell Therapeutics (Inst); Treadwell Therapeutics (Inst); Vividion Therapeutics (Inst); Zymeworks (Inst)
 
Rachel M. Layman
Honoraria - Pfizer
Consulting or Advisory Role - BioTheryX; Celcuity; Gilead Sciences; Lilly; Novartis
Research Funding - Accutar Biotech; Arvinas (Inst); Celcuity; GlaxoSmithKline (Inst); Lilly (Inst); Novartis (Inst); Pfizer (Inst); Puma Biotechnology (Inst); Zentalis (Inst)
(OPTIONAL) Uncompensated Relationships - Celcuity; Lilly
 
Michael A. Danso
Honoraria - Amgen
Consulting or Advisory Role - Immunomedics; Novartis; Pfizer; Seagen
 
David Cosgrove
Employment - Compass Oncology
Leadership - Compass Oncology; Sarah Cannon Research Institute
Honoraria - EMD Serono
Consulting or Advisory Role - Daiichi Sankyo/Lilly; Genentech; Merck KGaA
Travel, Accommodations, Expenses - US Oncology
 
Marjorie E. Zettler
Employment - Accutar Biotechnology, Inc.
 
Katherine C. Pehlivan
Employment - Accutar Biotechnology, Inc.
 
Erika P. Hamilton
Consulting or Advisory Role - Accutar Biotechnology (Inst); AstraZeneca (Inst); Daiichi Sankyo (Inst); Ellipses Pharma (Inst); Entos (Inst); Fosun Pharma (Inst); Genentech/Roche (Inst); Gilead Sciences (Inst); Jazz Pharmaceuticals (Inst); Jefferies (Inst); Lilly (Inst); Medical Pharma Services (Inst); Mersana (Inst); Novartis (Inst); Olema Pharmaceuticals (Inst); Pfizer (Inst); Stemline Therapeutics (Inst); Tempus (Inst); Theratechnologies (Inst); Tubulis GmbH (Inst); Verascity Science (Inst); Zentalis (Inst)
Research Funding - Abbvie (Inst); Accutar Biotech (Inst); Acerta Pharma (Inst); ADC Therapeutics (Inst); Akeso Biopharma (Inst); Amgen (Inst); Aravive (Inst); ArQule (Inst); Artios (Inst); Arvinas (Inst); AstraZeneca (Inst); AtlasMedx (Inst); BeiGene (Inst); Black Diamond Therapeutics (Inst); Bliss Biopharmaceutical (Inst); Boehringer Ingelheim (Inst); Bristol-Myers Squib (Inst); Cascadian Therapeutics (Inst); Clovis Oncology (Inst); Compugen (Inst); Context Therapeutics (Inst); Cullinan Oncology (Inst); Curis (Inst); CytomX Therapeutics (Inst); Daiichi Sankyo (Inst); Dana Farber Cancer Hospital (Inst); Dantari (Inst); Deciphera (Inst); Duality Biologics (Inst); eFFECTOR Therapeutics (Inst); Eisai (Inst); Ellipses Pharma (Inst); Elucida Oncology (Inst); EMD Serono (Inst); Fochon Pharmaceuticals (Inst); Fujifilm (Inst); G1 Therapeutics (Inst); Genentech/Roche (Inst); Gilead Sciences (Inst); H3 Biomedicine (Inst); Harpoon (Inst); Hutchison MediPharma (Inst); Immunogen (Inst); Immunomedics (Inst); Incyte (Inst); Infinity Pharmaceuticals (Inst); Inspirna (Inst); InventisBio (Inst); Jacobio (Inst); K-Group Beta (Inst); Karyopharm Therapeutics (Inst); Kind Pharmaceuticals (Inst); Leap Therapeutics (Inst); Lilly (Inst); Loxo (Inst); Lycera (Inst); MabSpace Biosciences (Inst); Macrogenics (Inst); MedImmune (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); Oncothyreon (Inst); ORIC Pharmaceuticals (Inst); Orinove (Inst); Orum Therapeutics (Inst); Pfizer (Inst); PharmaMar (Inst); Pieris Pharmaceuticals (Inst); Pionyr (Inst); Plexxikon (Inst); Prelude Therapeutics (Inst); ProfoundBio (Inst); Radius Health (Inst); Regeneron (Inst); Relay Therapeutics (Inst); Repertoire Immune Medicines (Inst); Rgenix (Inst); Seagen (Inst); Sermonix Pharmaceuticals (Inst); Shattuck Labs (Inst); Silverback Therapeutics (Inst); Stem CentRx (Inst); Stemline Therapeutics (Inst); Sutro Biopharma (Inst); Syndax (Inst); Syros Pharmaceuticals (Inst); Taiho Pharmaceutical (Inst); TapImmune Inc. (Inst); Tesaro (Inst); Tolmar (Inst); Torque (Inst); Treadwell Therapeutics (Inst); Verastem (Inst); Zenith Epigenetics (Inst); Zymeworks (Inst)