DUBLIN – Ipsen SA is on track for an NDA filing for palovarotene in fibrodysplasia ossificans progressiva (FOP), an ultra-rare disease characterized by the gradual replacement of skeletal muscle and connective tissue with bone, following an interim analysis of phase III data which indicates that the drug may have a substantial effect on the disease process.

An interim analysis from Fulcrum Therapeutics Inc.’s phase II study of losmapimod for treating facioscapulohumeral muscular dystrophy (FSHD) produced data that pleased the CEO and displeased investors.