Methods are provided for treating Fibrodysplasia ossificans progressiva (PFO).Such methods involve the Administration to a Subject that has: FOP Scheme effective receptor antagonist of the Activin type 2A (acvr2a) and / or Activin a receptor type 2b (acvr2b) or aActivin receptor antagonist of the type 1 (acvr 1).The Fusion Proteins de antagonists include one or more extracellular domain (ECD) acvr2a, acvr2b ACVR1 and the domain and / or faith of a heavy chain ininunoglobulina,And Antibody against acvr2a, acvr2b, ACVR1 or Activin.
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