An Integrated Phase I/II, Multicentre, Double-blind, Randomised, Dysport and Placebo-controlled, Dose Escalation and Dose-finding Study to Evaluate the Safety and Efficacy of IPN10200 in the Treatment of Adult Upper Limb Spasticity.

Inclusion Criteria: 1. Participant must be 18 to 70 years of age inclusive (except for dose escalation must be 18 to 65 years of age) at the time of signing the informed consent. 2. Has spastic hemiparesis following stroke or Traumatic brain injury (TBI) 3. Is at least 6 months post-stroke or TBI 4. Has never received BoNT or if previously treated, should have received their last injection of any commercialized BoNT-A or B at least 4 months prior to study Baseline 5. Has a MAS score ≥2 in the (PTMG) to be injected 6. Is eligible to receive a total recommended dose 1000 U Dysport in the upper…