Safety, PK/PD, and Exploratory Efficacy Study of AMT-191 in Classic Fabry Disease

In Fabry disease, the enzyme α-galactosidase A is deficient. AMT-191 is an investigational gene therapy that encodes a recombinant serotype 5 based adeno-associated viral vector (rAAV5). AMT-191 is designed to target the liver for production of the enzyme α-galactosidase A (αGAL). AMT-191 is delivered via a single (one-time) intravenous (IV) infusion. In this first-in-human study of AMT-191, two or more dose levels will be tested. All eligible participants will receive AMT-191 at one of the dose levels; there is no placebo in this study. The starting dose level is decided based on accepted rules for dose translation from preclinical (animal) studies to humans. Subsequent dose cohort levels are decided based on the review of safety, tolerability, and PK/PD results by an Independent Data Monitoring Committee and in agreement with the Sponsor. Participants will be monitored through study site visits, blood tests, imaging questionnaires, and other assessments as per the study protocols.