Study to Provide Continued Access to Treatment for Patients Completing a Previous Trial With Efanesoctocog Alfa — StellaPhase 3 — Large-scale testing across thousands of people, comparing the new treatment against current standard treatments.
Trial locations(22 sites)
Bulgaria
Sobi Investigational Site, Plovdiv Sobi Investigational Site, Sofia France
Sobi Investigational Site, Bordeaux Sobi Investigational Site, Brest Sobi Investigational Site, Bron Last updated January 2026