Chongqing Claruvis Pharmaceutical Co., Ltd.

This study is testing a new formulation of botulinum toxin (called YY001) to see if it can safely reduce severe muscle stiffness in the arm of adults who have had a stroke. About 254 participants will receive injections to see how well the treatment relaxes their tight muscles an…

This study is testing the long-term safety and effectiveness of repeated injections of a new botulinum toxin (YY001) for adults with stiff, tight arm muscles (spasticity) after a stroke. It aims to see if multiple treatments over time can safely reduce muscle tightness and improv…