On April 14, 2026 Samsung Bioepis Co., Ltd. reported the initiation of Phase 1 clinical trial for SBE303. SBE303 is Samsung Bioepis’s first novel antibody-drug conjugate (ADC) candidate engineered to bind to Nectin-4, an adhesion protein that is specifically expressed in tumor cells, including urothelial cancer, lung cancer, and breast cancer.1 The Phase 1 clinical trial for SBE303 is an open‑label, multi-center, first‑in‑human trial to evaluate the safety, tolerability and efficacy of SBE303 in participants with advanced refractory solid tumors. More information on this study is available at clinicaltrials.gov (NCT07524348).

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(Press release, Samsung Bioepis, APR 14, 2026, View Source [SID1234664379])