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君实生物(688180):JS207(PD1/VEGFA双抗)临床前数据发表 展现二代PD1抗肿瘤潜力
Xin Lang Cai Jing·2025-06-20 06:37

Core Insights - JS207, a bispecific antibody targeting PD-1 and VEGFA developed by Junshi Biosciences, has demonstrated strong antitumor activity and favorable safety profiles in preclinical studies, indicating its potential as a novel cancer treatment [1][2] Group 1: Mechanism and Preclinical Results - JS207 exhibits high affinity binding to PD-1 and VEGFA, showing comparable or superior antigen affinity, immune activation, and vascular proliferation regulation compared to similar drugs [1][2] - In various tumor models, JS207 has shown robust antitumor activity, with good tolerability and thermal stability, making it a promising candidate for cancer therapy [1][2] Group 2: Structural and Functional Characteristics - Structurally, JS207 is based on Trastuzumab, combining a full-length anti-PD-1 IgG antibody with a VEGFA-targeting heavy chain variable region, demonstrating effective blocking of PD1/PDL1 and PD1/PDL2 interactions [2] - In mouse tumor models, JS207 exhibited dose-dependent antitumor effects, outperforming Trastuzumab alone or in combination with VEGF DotAb treatment [2] Group 3: Clinical Development and Market Potential - JS207 is currently undergoing multiple Phase I-II clinical trials for various cancers, including non-small cell lung cancer, hepatocellular carcinoma, renal cancer, and colorectal cancer, indicating its broad application potential [3] - The drug has significant combination potential with other products in the company's pipeline, such as DKK1 inhibitors and CTLA-4 monoclonal antibodies, enhancing its market prospects [3] Group 4: Financial Projections - Revenue forecasts for the company from 2025 to 2027 are projected at 2.6 billion, 3.5 billion, and 4.5 billion yuan, with year-on-year growth rates of 33.45%, 34.62%, and 28.57% respectively [4] - The net profit attributable to the parent company is expected to be -685 million, 29 million, and 306 million yuan for the same period, with significant growth rates of 46.53%, 104.18%, and 968.22% respectively [4]