Gena Wang's questions to PTC Therapeutics Inc (PTCT) leadership • Q2 2025
Question
Gena Wang from Barclays asked for confirmation on Sefiance's IP status, questioning if it relies solely on orphan designation. She also asked if revenue contribution would begin in Q3 2025 and requested more detail on the discussions during the vutiquinone late-cycle review.
Answer
CEO Dr. Matthew Klein corrected that Sefiance is protected by a composition of matter polymorph patent extending to 2038, with an expected extension to 2039, not just orphan exclusivity. He confirmed Q3 revenue is expected. Regarding vutiquinone, he said the late-cycle meeting focused on the evidence, with a key question being whether the data for upright stability, though not a pre-specified primary endpoint, is persuasive enough to support approval, especially given the FDA's evolving view on this endpoint.