A Clinical Study to Evaluate the Safety and Efficacy of JHM03 in Adult Patients With Upper Limb Spasticity

Inclusion Criteria: * Participant must be 18 to 80 years of age inclusive, at the time of signing the informed consent * Body weight ≥50Kg * Participants with stable post-stroke Spasticity (ULS) for at least 3 months * Participants with Modified Ashworth Scale (MAS) score of at least 2 at elbow flexor or wrist flexor or finger flexor * Participants with DAS score of at least 2 on the Principal Target of Treatment (PTT) (one of four functional domains: dressing, hygiene, limb position and pain) * Participants who have been stable for at least 1 month prior to study entry in terms of oral antispasticity Exclusion Criteria: * Previous use of any botulinum toxin within 6 months prior to screening, or plan to use any botulinum toxin during the study. * History of alcohol or drug abuse. * Known allergy or hypersensitivity to any component of the study products. * History of epilepsy * Known or suspected to be HIV positive, serologically positive for syphilis, or active hepatitis B or C * Any medical condition that may put the participant at increased risk for botulinum toxin type A use