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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A basket trial of trastuzumab deruxtecan, a HER2-targeted antibody-drug conjugate, for HER2-amplified solid tumors identified by circulating tumor DNA analysis (HERALD trial).
 
Masataka Yagisawa
No Relationships to Disclose
 
Yoshiaki Nakamura
Research Funding - Taiho Pharmaceutical (Inst)
 
Takayuki Yoshino
Research Funding - Chugai Pharma (Inst); Daiichi Sankyo (Inst); GlaxoSmithKline (Inst); MSD (Inst); Novartis (Inst); Ono Pharmaceutical (Inst); PAREXEL International Inc. (Inst); Sanofi (Inst); Sumitomo Dainippon (Inst)
 
Yoshito Komatsu
Honoraria - Asahi Kasei; Bayer Yakuhin; Bristol-Myers Squibb; Chugai Pharma; Lilly; Medical Review Co., Ltd.; Merck; Mitsubishi Tanabe Pharma; Moroo Co.; Nipro Corporation; Ono Pharmaceutical; Otsuka; Sanofi/Aventis; Shiseido; Taiho Pharmaceutical; Takeda; Yakult Honsha
Research Funding - A2 Healthcare; Astellas Pharma; Bayer Yakuhin; Daiichi Sankyo; Eisai; Incyte; IQvia; Mediscience Planning; Merck Sharp & Dohme; NanoCarrier; Ono Pharmaceutical; Parexel International Corporation.; Sanofi/Aventis; Shionogi; Sumitomo Dainippon; Sysmex; Taiho Pharmaceutical; Yakult Honsha
 
Shigenori Kadowaki
Honoraria - Bayer; Bristol-Myers Squibb; Chugai Pharma; Lilly; Merck KGaA; Ono Pharmaceutical; Yakult Pharmaceutical
Research Funding - Bristol-Myers Squibb (Inst); Lilly (Inst); MSD (Inst); Ono Pharmaceutical (Inst); Taiho Pharmaceutical (Inst)
 
Kei Muro
Honoraria - Bayer; Chugai Pharma; Lilly; Merck Serono; Ono Pharmaceutical; Sanofi; Taiho Pharmaceutical; Takeda; Yakult Honsha
Research Funding - Daiichi Sankyo (Inst); Gilead Sciences (Inst); Kyowa Hakko Kirin (Inst); Mediscience Planning (Inst); Merck Serono (Inst); MSD (Inst); Ono Pharmaceutical (Inst); Parexel International (Inst); Pfizer (Inst); Sanofi (Inst); Shionogi (Inst); Solasia Pharma (Inst); Sumitomo Dainippon (Inst)
 
Yu Sunakawa
Honoraria - Bayer Yakuhin; Bristol-Myers Squibb Japan; Chugai Pharma; Kyowa Hakko Kirin; Lilly Japan; Merck; Nippon Kayaku; Sanofi; Taiho Pharmaceutical; Takeda; Yakult Honsha
Consulting or Advisory Role - Daiichi Sankyo; Takeda
Research Funding - Chugai Pharma (Inst); Daiichi Sankyo (Inst); Lilly Japan (Inst); Merck Serono (Inst); Sanofi (Inst); Taiho Pharmaceutical (Inst); Takeda (Inst)
 
Taroh Satoh
Honoraria - Astellas Pharma; Bayer Yakuhin; Bristol-Myers Squibb; Chugai Pharma; Lilly; Merck; Merck Serono; Nihonkayaku; Ono Pharmaceutical; Taiho Pharmaceutical; Takeda; Yakult Honsha
Consulting or Advisory Role - Bayer Yakuhin; Lilly; Merck Serono; Merck Serono; Nihonkayaku; Ono Pharmaceutical; Takara Bio
Research Funding - Chugai Pharma (Inst); Daiichi Sankyo (Inst); Dainippon Sumitomo Pharma (Inst); Gilead Sciences (Inst); Lilly (Inst); Merck (Inst); Merck Serono (Inst); Ono Pharmaceutical (Inst); Sanofi (Inst); Yakult Honsha (Inst)
 
Tomohiro Nishina
Honoraria - Bristol-Myers Squibb; Chugai Pharma; Lilly; Merck Serono; Nihonkayaku; Taiho Pharmaceutical; Takeda
Research Funding - Chugai Pharma (Inst); Daiichi Sankyo (Inst); Dainippon Sumitomo Pharma (Inst); Eisai (Inst); Lilly Japan (Inst); Merck Serono (Inst); MSD (Inst); Ono Pharmaceutical (Inst); Taiho Pharmaceutical (Inst)
 
Taito Esaki
Honoraria - Bayer; Chugai Pharma; Daiichi Sankyo; Lilly; Merck Serono; MSD; Ono Pharmaceutical; Sanofi; Taiho Pharmaceutical; Takeda
Research Funding - Amgen Astellas BioPharma (Inst); Astellas Pharma (Inst); Bayer (Inst); Daiichi Sankyo (Inst); Dainippon Sumitomo Pharma (Inst); IQVIA (Inst); Lilly (Inst); Merck Serono (Inst); MSD (Inst); Nihonkayaku (Inst); Novartis (Inst); Ono Pharmaceutical (Inst); Parexel (Inst); Quintiles (Inst)
 
Satoshi Fujii
No Relationships to Disclose
 
Hiromi Ono
No Relationships to Disclose
 
Daiki Tomita
No Relationships to Disclose
 
Noriko Fujishiro
No Relationships to Disclose
 
Nami Hirano
No Relationships to Disclose
 
Nozomu Fuse
No Relationships to Disclose
 
Akihiro Sato
Honoraria - AstraZeneca; Dainippon Sumitomo Pharma
Research Funding - Aspyerian Therapeutics (Inst); Bayer (Inst); Boehringer Ingelheim (Inst); Chugai Pharma (Inst); Dainippon Sumitomo Pharma (Inst); Eisai (Inst); MSD (Inst); Oncolys BioPharma (Inst); Ono Pharmaceutical (Inst); Pentax Medical Devices; Taiho Pharmaceutical (Inst); Takeda (Inst)
 
Gakuto Ogawa
No Relationships to Disclose
 
Shogo Nomura
Employment - Asahi Kasei (I)
Honoraria - AstraZeneca; Chugai Pharma; Pfizer; Taiho Pharmaceutical
 
Hiroya Taniguchi
Honoraria - Bayer; Bristol-Myers Squibb Japan; Chugai Pharma; Daiichi Sankyo; Lilly Japan; MEDICAL & BIOLOGICAL LABORATORIES CO., LTD.; Merck Serono; Mitsubishi Tanabe Pharma; MSD K.K; Nippon Kayaku; Novartis; Sanofi; Taiho Pharmaceutical; Takeda; Yakult Honsha
Research Funding - Array BioPharma; Daiichi Sankyo; Dainippon Sumitomo Pharma; MSD Oncology; Novartis; Ono Pharmaceutical; Sysmex; Takeda