Masitinib: a first-in-class TKI as treatment of progressive MS

Results of a randomised phase 3 trial indicate that masitinib may be a new treatment option for both primary progressive MS and non-active secondary progressive MS [1]. Treatment with this tyrosine kinase inhibitor (TKI) resulted in a significant and sustained change in EDSS score over 2 years. Masitinib has a novel mechanism of action which is thought to have an impact on the innate immune system by selectively inhibiting mast cell activity (measured by c-KIT, LYN, and FYN) and microglia activity (measured by CSF1R). Results of a randomised, double-blind, placebo-controlled, phase 2b/3 trial were presented. The trial had novel design features, evaluating 2 independent parallel groups: 4.5 mg/kg/day versus matched placebo, and titrated 6.0 mg/kg/day versus placebo. Efficacy results from the high-dose parallel grou...

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Posted on 25 November, 202025 November, 2020