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uniQure provides regulatory update on AMT-130 for Huntington’s Disease

uniQure (QURE) N.V. “provided a regulatory update on AMT-130, its investigational gene therapy for the treatment of Huntington’s disease. Following recent Type B meetings and further guidance from the FDA, the Company has reached alignment with the FDA on several key components of the statistical analysis plan and Chemistry, Manufacturing and Controls information that will support a Biologics License Application submission expected in the first quarter of 2026. In the second quarter of 2025, the Company held a Type B meeting with the FDA to discuss the proposed use of external control data and the prospectively defined statistical analysis plan in support of the planned BLA submission for AMT-130. The FDA continued to support its prior agreement that the composite Unified Huntington’s Disease Rating Scale may serve as an acceptable registrational, intermediate clinical endpoint for accelerated approval. The FDA agreed that the primary efficacy analysis for the BLA will evaluate the 3-year change in cUHDRS in high-dose AMT-130 patients compared to a propensity score-adjusted external control arm. The Company plans to use propensity score-weighted external control derived from the ENROLL-HD dataset for the primary analysis and to submit certain sensitivity analyses, including one using a propensity score-matched external control, as additional support. The FDA also agreed that ENROLL-HD – a large, prospective, longitudinal, natural history study of patients with Huntington’s disease – may be acceptable as the external control dataset for the primary analysis of the trial data along with additional sensitivity analyses using the TRACK-HD/TRACK-ON and PREDICT-HD datasets. To date, approximately 33,000 patients have enrolled in ENROLL-HD. Compared to previously used natural history studies like TRACK-HD and PREDICT-HD, ENROLL-HD offers a substantially larger sample size, lower attrition rates, and longer average patient follow-up. The Company expects the larger sample size to reduce variability in the external control data and enhance the robustness of the SAP. The Company plans to submit an updated SAP consistent with discussions from the recently held Type B meeting to the FDA in the second quarter of 2025.”

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