1. Human gene therapy for hemophilia Publication: Silver Spring, MD : Center for Biologics Evaluation and Research, January 2020 Subject(s): Genetic TherapyHemophilia A -- drug therapyHemophilia B -- drug therapyClinical Trials as TopicDrug Evaluation, PreclinicalFactor VIII -- therapeutic useFactor IX -- therapeutic useUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.