LEXINGTON, Mass. and AMSTERDAM, Netherlands — uniQure N.V. (NASDAQ: QURE), a leading gene therapy company advancing transformative therapies for patients with severe medical needs, today announced the completion of enrollment in the first cohort of the Phase I/IIa trial of AMT-191, an investigational gene therapy for the treatment of Fabry disease. Additionally, the Independent Data Monitoring Committee (IDMC) reviewed safety data from the initial two patients enrolled in the first cohort. The IDMC’s review identified no significant safety concerns and recommended proceeding with enrollment in the second cohort.
“Fabry is a debilitating disease that continues to represent a significant unmet medical need,” stated Walid Abi-Saab, M.D., chief medical officer of uniQure. “We are encouraged by the initial pharmacodynamics, biomarkers and safety profile observed to date for AMT-191 as well as the positive outcome of the IDMC review. This strengthens our confidence in the potential of AMT-191 to make a meaningful difference in the lives of patients with Fabry disease. We look forward to advancing to the second cohort in this important clinical program.”
AMT-191 is an investigational AAV5-based gene therapy that uses a proprietary, highly potent promoter to deliver a galactosidase alpha (GLA) transgene designed to target the liver to produce GLA protein. In patients with Fabry disease, a pathogenic variant in the GLA gene leads to α-galactosidase A (aGAL-A) enzyme deficiency, which in turn results in a progressive accumulation of lipids in multiple cell types, including kidney and heart cells, eventually resulting in a multi-system disorder. AMT-191 may offer a novel one-time intravenously administered approach to treating Fabry disease.
About the Phase I/IIa Clinical Program of AMT-191
The Phase I/IIa clinical trial of AMT-191 is a multi-center, open-label trial being conducted in the United States consisting of two dosing cohorts of up to six adult male patients each receiving an intravenous infusion of AMT-191. Patients will continue to receive their regular enzyme replacement therapy until the criteria for withdrawal is met and will be followed for a period of 24 months. The trial will explore the safety, tolerability, and early signs of efficacy by measuring the expression of lysosomal enzyme aGLA-A. Additional details are available on www.clinicaltrials.gov (NCT06270316).
AMT-162 has been granted both Orphan Drug status and Fast Track designation by the U.S. Food and Drug Administration.
About Fabry Disease
Fabry disease is an X-linked genetic disorder resulting from a deficiency of GLA. Based on a 2020 study published in the Journal of Therapeutics and Clinical Risk Management, the prevalence is estimated to be between one in 40,000 and one in 117,000 individuals. The current standard of care for Fabry disease is bi-weekly infusions of enzyme replacement therapy, a treatment with limited effectiveness in many patients due to poor cross-correction, with inefficient clearance of substrates in the target organs, in particular the kidney and the heart.
About uniQure
uniQure is delivering on the promise of gene therapy – single treatments with potentially curative results. The approvals of uniQure’s gene therapy for hemophilia B – an historic achievement based on more than a decade of research and clinical development – represent a major milestone in the field of genomic medicine and ushers in a new treatment approach for patients living with hemophilia. uniQure is now advancing a pipeline of proprietary gene therapies for the treatment of patients with Huntington’s disease, refractory temporal lobe epilepsy, ALS, Fabry disease, and other severe diseases.
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