Core Viewpoint - The bispecific antibody drug market is rapidly expanding, with significant applications in cancer treatment, autoimmune diseases, and infections, and is projected to reach a global market size of $19.1 billion by 2025 and $26.8 billion by 2026 [1][5]. Group 1: Market Overview - The global bispecific antibody drug market is expected to grow to $19.1 billion by 2025, with China's market size projected at approximately $800 million, accounting for about 4.19% of the global market [5]. - By 2026, the global bispecific antibody drug market is anticipated to reach $26.8 billion, with China's market size expected to be around $1.5 billion, representing about 5.60% of the global market [5]. - Nearly 80% of the drug pipeline for bispecific antibodies is concentrated in the cancer treatment sector, particularly in solid tumors [7]. Group 2: Industry Definition and Mechanism - Bispecific antibodies, also known as bispecific or dual-function antibodies, can bind to two different antigens or two different epitopes of the same antigen, enhancing therapeutic effects and reducing adverse reactions [3][4]. - The primary mechanisms of bispecific antibodies include mediating immune cell killing, blocking dual-target signals, and promoting the formation of functional protein complexes [5]. Group 3: Industry Chain - The upstream of the bispecific antibody industry chain involves raw materials such as cell culture media, chromatography media, and key equipment like bioreactors and detection devices [9]. - The midstream focuses on the research and production of bispecific antibody drugs, while the downstream is primarily composed of medical institutions, especially large hospitals specializing in oncology and autoimmune diseases [9]. Group 4: Competitive Landscape - Major global players in the bispecific antibody field include Roche, Amgen, Johnson & Johnson, and several others, while domestic companies include BeiGene, Innovent Biologics, and others [11]. - The development of bispecific antibodies is still in progress, with ongoing exploration of target combination strategies and production technologies [11]. Group 5: Future Outlook - The future of bispecific antibodies lies in their application in cancer treatment and tissue regeneration, with a focus on addressing multiple targets in pathological processes to enhance therapeutic efficacy [14]. - New strategies and clinical trials are emerging, indicating a potential for new bispecific antibody drugs to be approved for market entry soon [14].