Sevasemten is an orally active allosteric inhibitor of skeletal muscle myosin that protects skeletal muscle from contraction-induced injury. Sevasemten exhibits selectively myosin inhibition with IC 50 s of ≤10 μM (skeletal), >100 μM (cardiac), respectively. Sevasemten decreases muscle damage biomarkers and fibrosis while increasing muscle strength and activity in in Duchenne muscular dystrophy disease models .