14/01/2026 Nanjing Leads Biolabs' opamtistomig received the FDA fast track designation for extra-pulmonary neuroendocrine carcinoma Nanjing Leads Biolabs' opamtistomig received the FDA fast track designation for extra-pulmonary neuroendocrine carcinoma ( Ref ) The US FDA granted fast track designation to Nanjing Leads Biolabs' opamtistomig (LBL-024; PD-L1 x 4-1BB bispecific antibody) for the treatment of extra-pulmonary neuroendocrine carcinoma (EP-NEC).  Dr. Charles Cai, CMO