Pfizer Launches Phase 3 Program to Test Gene Therapy for Treating Hemophilia B
Pfizer has partnered with Spark Therapeutics to launch a Phase 3 program to evaluate the safety and effectiveness of its factor IX replacement gene therapy for treating hemophilia B. Replacement of factor IX (FIX), the clotting protein lacking in hemophilia B, will be done via the fidanacogene elaparvovec gene…