Mirum’s younger-child FOP results support a planned expansion filing
Mirum ($MIRM) reported new results for zilurgisertib in children aged six to under twelve with fibrodysplasia ossificans progressiva, a rare disease that causes abnormal bone formation. In the randomized Phase 2 PROGRESS cohort, twelve treated children had a mean 8.09-cubic-centimeter reduction in lesion volume after 24 weeks, while thirteen placebo recipients had a 9.14-cubic-centimeter increase. The comparison had a nominal p-value of 0.003. No treated child developed a new lesion, compared wi