Wing Yip's questions to Ultragenyx Pharmaceutical Inc (RARE) leadership • Q3 2024
Question
Wing Yip, on for Ed Arce, asked about the significance of the 12-week primary efficacy period in the Angelman Phase 3 study and inquired about the next development steps for setrusumab (UX143) in 2025.
Answer
CMO Eric Crombez explained the Angelman study duration was chosen to allow sufficient time for skills to develop and be detected, based on Phase 1/2 data. CEO Emil Kakkis added that 2025 for setrusumab is focused on the interim analyses of the Orbit study and data from the Cosmic study, with the goal of filing a BLA next year, pending the timing of the final data readout.