Zheng Quan Zhi Xing·2025-08-08 16:11Core Viewpoint - Shanghai Junshi Biosciences has received acceptance for a new indication application for Toripalimab in treating HER2-expressing locally advanced or metastatic urothelial carcinoma, marking a significant step in expanding treatment options for this cancer type [1][2][3] Group 1: Drug Information - The drug Toripalimab (brand name: Tuoyi) is a PD-1 monoclonal antibody and is the first domestically approved PD-1 targeted monoclonal antibody in China [4] - The application for the new indication is based on the RC48-C016 study, a Phase III clinical trial comparing the efficacy and safety of Toripalimab combined with Vadimezumab against Gemcitabine combined with Cisplatin/Carboplatin in patients with HER2-expressing locally advanced or metastatic urothelial carcinoma [3] - The study demonstrated that Toripalimab combined with Vadimezumab significantly prolonged progression-free survival (PFS) and overall survival (OS) compared to traditional chemotherapy [3] Group 2: Market Context - Urothelial carcinoma is one of the top ten most common malignant tumors globally, with a rising incidence and mortality rate in China, highlighting a significant unmet clinical need [2] - The emergence of PD-(L)1 monoclonal antibodies and novel antibody-drug conjugates over the past five years is reshaping the treatment landscape for advanced urothelial carcinoma, offering improved survival benefits and tolerability compared to traditional chemotherapy [2]