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April 09, 2026 04:34 ET | Source: LEADS BIOLABS CO., LTD.

Leads Biolabs’ Opamtistomig (PD-L1/4-1BB Bispecific Antibody) Advances to Expansion Phase in First-Line Biliary Tract Cancer Following Positive Safety and Preliminary Efficacy Results

Nanjing Leads Biolabs Co., Ltd. (“Leads Biolabs” or the “Company,” Stock Code: 9887.HK) announced that its proprietary PD-L1/4-1BB bispecific antibody,