Giroctocogene fitelparvovec had a mean annualised bleeding rate (ABR) of just 1.4 percent over two years, with no bleeding events in the first year post infusion.
Pfizer and Sangamo Therapeutics, a genomic medicines company, announced updated follow-up data from the Phase 1/2 Alta study of giroctocogene fitelparvovec (SB-525 or PF-07055480), an investigational gene therapy for patients with severe hemophilia A.