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China Medical System gains exclusive rights to two new biologics for tetanus and rabies in China and parts of Asia, Middle East, and Africa.
China Medical System announced on September 22, 2025, that it has secured exclusive rights to two innovative biologic treatments—Vecantoxatug for tetanus and Silevimig for rabies—developed by Chongqing Genrix.
The agreements grant commercialization rights in mainland China and licensing rights across the Asia-Pacific, Middle East, and North Africa.
Vecantoxatug, a monoclonal antibody for tetanus, met its Phase III trial goals and received Breakthrough Therapy designation, with its drug application accepted in May 2025.
Silevimig, a bispecific antibody for rabies, was accepted for review in January 2025 and received approval for a pediatric Phase III trial in July 2025.
Both products aim to improve safety and accessibility over current passive immunization options.
The initial ten-year agreement auto-renews every ten years unless terminated, supporting China Medical System’s strategy to expand its portfolio of high-value, innovative therapies.
China Medical System obtiene los derechos exclusivos de dos nuevos biológicos para el tétanos y la rabia en China y partes de Asia, Oriente Medio y África.