智通财经网·2025-12-11 02:52Core Viewpoint - Rongchang Biopharmaceutical (09995) experienced a significant stock increase, with a rise of over 7% during trading, closing at 81.5 HKD, with a transaction volume of 310 million HKD, following the presentation of clinical trial data for its PD-1/VEGF bispecific antibody RC148 at the ESMO-IO conference in London [1]. Group 1: Clinical Trial Data - The clinical trial data for RC148, a PD-1/VEGF bispecific antibody, was presented at the ESMO-IO conference, showcasing its efficacy in treating non-small cell lung cancer [1]. - The trial results indicated an overall response rate (ORR) of 66.7% and a disease control rate (DCR) of 95.2% for the 20 mg/kg Q3W dosage combined with docetaxel [1]. - Among patients with PD-L1 positive status (TPS≥1%), the ORR reached 80%, with a median follow-up time of approximately 7 months and a median progression-free survival (mPFS) of 8.3 months [1]. Group 2: Regulatory Approvals and Market Potential - RC148 received FDA approval in August to initiate a Phase II clinical trial in the United States, marking a significant step in its global clinical development [1]. - The drug has also been approved in China for clinical research in monotherapy and combination therapy for advanced solid tumors, indicating strong confidence in its clinical progress [1]. - The global business development (BD) activity for PD-1/VEGF therapies is heating up, with companies like Kangfang Biopharmaceutical and 3SBio already pursuing international licensing agreements, positioning RC148 favorably in the competitive landscape [1].