复宏汉霖:更新数据提示PD-L1 ADC在多西他赛治疗失败肺鳞癌人群中具备潜力

Core Insights - The company announced key update data for its PD-L1 ADC (HLX43) for the treatment of non-small cell lung cancer (NSCLC) [1] Group 1: Study Overview - A total of 174 advanced NSCLC patients were included in the study as of October 22, 2025, with 89 patients receiving 2.0 mg/kg HLX43 and 85 patients receiving 2.5 mg/kg [1] - All patients had previously undergone platinum-based chemotherapy, with approximately 80% and over 30% having received immunotherapy and targeted therapy, respectively [1] Group 2: Efficacy Results - In squamous NSCLC patients (2 mg/kg, n=33), the objective response rate (ORR) was 33.3%, and the disease control rate (DCR) was 75.8% [1] - In non-squamous patients (2.5 mg/kg, n=35, including EGFR wild-type and EGFR mutations), the ORR increased to 48.6%, and the DCR reached 94.3% [1] - Among squamous NSCLC patients who had previously received docetaxel treatment (2 mg/kg, n=13), the ORR was 38.5%, and the DCR was 84.6% [1] - The company indicated that these results suggest significant potential for HLX43 in the population of lung squamous cancer patients who have failed docetaxel treatment [1]