CSL Behring’s Gene Therapy HEMGENIX (etranacogene dezaparvovec): Four Years Post-Infusion Data Continue to Show Sustained Efficacy and Safety in Adults with Haemophilia B
94% of patients eliminated factor IX prophylaxis and remained free of continuous prophylaxis through four years post-treatment. Mean factor IX activity levels were sustained at near normal levels of 37% through four years post-treatment, reinforcing the efficacy of HEMGENIX® in the treatment of haemophilia B.