Phenylbutyrate Therapy for Maple Syrup Urine Disease May 27, 2020checkorphan Learn more about: Maple syrup urine disease Related Clinical Trial Neurocognitive Outcomes and Quality of Life in Adults With Maple Syrup Urine Disease (MSUD) Phenylbutyrate Therapy for Maple Syrup Urine Disease Recruitment InformationAdministrative Informations