Core Viewpoint - 康哲药业 has signed exclusive collaboration agreements with 重庆智翔金泰 for the commercialization of two monoclonal antibody injections: GR2001 for passive immunity against tetanus and GR1801 for passive immunity post-suspected rabies virus exposure, with exclusive rights in mainland China and other regions [1][2]. Group 1: Product Details - GR2001 is a recombinant humanized monoclonal antibody targeting the C-terminal of Tetanus Neurotoxin (TeNT), which has shown efficacy in phase III clinical trials and is included in the NMPA's list of breakthrough therapies [2][3]. - GR1801 is a recombinant fully human bispecific antibody targeting the rabies virus glycoprotein, designed to provide immediate protection against rabies post-exposure, and has also met primary efficacy endpoints in phase III trials [4][5]. Group 2: Market Context - Tetanus cases globally are estimated between 500,000 to 1,000,000 annually, with a high mortality rate, particularly among the elderly and infants, highlighting the need for effective preventive treatments [3]. - Rabies is a highly fatal disease with nearly 100% mortality once symptoms appear, necessitating effective post-exposure prophylaxis, which includes the use of passive immunization agents [5][6]. Group 3: Competitive Landscape - Current passive immunization options for tetanus and rabies have significant limitations in safety and accessibility, creating a market opportunity for GR2001 and GR1801, which promise improved safety profiles and efficacy [3][6]. - GR1801 is positioned as the first globally approved bispecific antibody for rabies passive immunity, aligning with WHO recommendations for a "cocktail" approach to enhance efficacy against various virus strains [4][6].
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