Walid Abi-Saab
Analyst · Guggenheim Securities
Thank you, Matt. Good morning and good afternoon, everyone. I'll start with AMT-130 in Huntington's disease, or HD. As Matt noted, the BLA is under priority review with the PDUFA date of May 1, 2027, and the MAA has been validated by the MHRA. Both submissions are based on the 36-month analysis we presented in September 2025. In that analysis, the high dose of AMT-130 showed a 75% slowing of disease progression on the composite Unified Huntington's Disease Rating Scale, or cUHDRS, and a 60% slowing on total function capacity or TFC, compared with the propensity score matched external control. Both results were statistically significant. With the BLA now accepted and under active review, going forward, we will not be commenting on specific information requests made by the FDA, including questions regarding a potential AdCom. The FDA indicated that they are tentatively planning to discuss our application at an AdCom. As you're aware, scheduling an AdCom is within the sole discretion of the agency. In September 2026, we presented detailed analysis of a recent data cutoff. I will not repeat that today. Instead, I would like to focus on the progress we've made towards initiating the confirmatory study. Earlier this year, we reached alignment with the FDA on key elements of the design. Specifically, this will be a randomized study with a 2:1 ratio of AMT-130 high dose to standard of care. It will include approximately 200 patients. The primary endpoint is TFC at 36-month. After 36-month, all standard of care participants will be offered AMT-130 in a separate open-label study. uniQure is fully committed to completing the study in a timely manner. Preparations started at the beginning of this year and have accelerated following alignment with the FDA. This will be a global study with sites across North America, Europe and Latin America. The protocol has already been submitted to institutional review boards or IRBs in the U.S., and we expect to begin patient screening by the end of this year. I would like to take a moment to talk about TFC, the primary endpoint in the confirmatory study. This is a clinical endpoint that is very important, not only for regulators but also for people living with HD. Why is TFC important? TFC captures whether a person can keep working, manage their finances, handle household responsibilities, take care of themselves day-to-day and live without full-time care. For patients and families, these are not abstract measures. They are the difference between maintaining and losing independence, and they are directly related to quality of life. This is what patients and families care about. In fact, it is what we heard from HD specialists at the 2 most recent scientific meetings we attended, the International Parkinson and Movement Disorder Society meeting in Seoul and the European Huntington's Disease Network meeting in Krakow. These specialists describe TSC as the endpoint they find most meaningful when talking with patients. Across our Phase I/II studies, TFC declined by less than 1/10 point per year in patients who received a high dose of AMT-130. This remarkably slow decline was consistent across all analyses and maintained through 4 years following treatment. Although these results come from a relatively small number of patients, they have never been seen before in HD. Moving on to our other clinical programs, starting with AMT-260 for refractory mesial temporal lobe epilepsy. Following the initial 6-month data of the first low-dose cohort of 6 patients, which was presented in June, early in this quarter, we completed enrollment of the second cohort of 7 higher dose patients. We expect to present updated results from both cohorts in the Phase I/IIa study in the first half of 2027. Turning to AMT-191 for Fabry disease. In August, enrollment resumed in the mid- and high-dose cohorts. As a reminder, dosing has been paused per protocol in these 2 cohorts after asymptomatic liver enzyme elevations, which fully resolved following a course of immunosuppression. We presented updated results in June from the March 15 cutoff, and we expect to share updated results from all 3 dosing cohorts in the first half of 2027. Now I will turn the call over to Kylie to discuss our recent patient advocacy work. Kylie?