Sangamo Therapeutics, Inc. SGMO, a genomic medicines company, and Pfizer Inc. PFE recently announced that the first participant has been dosed in the Phase 3 AFFINE study of giroctocogene fitelparvovec (SB-525), an investigational gene therapy for hemophilia A patients. AFFINE is a global Phase 3, open-label, multicenter, single arm study that will evaluate the efficacy and safety of giroctocogene fitelparvovec in patients with moderately severe to severe hemophilia A. The primary endpoint is impact on annual bleed rate (ABR) through 12 months following treatment with giroctocogene fitelparvovec, compared to ABR on Factor VIII (FVIII) replacement therapy collected in the Phase 3 lead-in study period.