Industry watchers will be tracking closely Replimune Group Inc.’s latest attempt to secure U.S. FDA approval of its advanced melanoma candidate, RP-1 (vusolimogene oderparepvec). The company announced Friday it had reached alignment for resubmitting the twice-rejected BLA with the agency, which it said has pledged to prioritize the review.
The regulatory clouds that have been darkening the U.S. FDA landscape of late for Uniqure NV’s gene therapy AMT-130 in Huntington’s disease may be parting a bit with the announced departure of Vinay Prasad as director of the agency’s CBER at the end of April.
A lot of distance lies between talking regulatory flexibility and actually being flexible. That message was driven home again after Uniqure NV disclosed in its latest earnings report March 2 that the U.S. FDA wants a sham-controlled study before it will consider approval of the company’s gene therapy AMT-130 in Huntington’s, a rare disease currently affecting about 41,000 people in the U.S.
Uniqure NV is the latest firm to get caught between the FDA’s shifting demands for “gold standard” science and regulatory flexibility for rare disease therapies. The company disclosed in its latest earnings report that U.S. regulators are calling for a sham-controlled study before they will consider approval of gene therapy AMT-130 in Huntington’s disease, a requirement that could set the program back by two to three years and raises potential ethical issues.
Gene therapy has had its commercial struggles in the past year. The cost to patients is in the millions and fewer are stepping forward for treatment than companies would like. While development continues in this game-changing field, some have struggled with regulatory authorities during development while others have just stepped away altogether.
Uniqure NV is regrouping after a surprise switcheroo by the havoc-beset U.S. FDA regarding phase I/II studies with AMT-130 vs. external control in Huntington’s disease (HD) – news of which pushed down the Lexington, Mass.-based firm’s shares (NASDAQ:QURE) Nov. 3 by $33.40, a loss of 49%, at the closing price of $34.29.
Uniqure NV rang the bell with a best-case scenario in the pivotal phase I/II study with AMT-130 for the treatment of Huntington’s disease, and shares of the Amsterdam-based firm (NASDAQ:QURE) closed Sept. 24 at $47.50, up $33.84, or 248%. The study met its prespecified primary endpoint, with high-dose AMT-130 turning up a statistically significant slowing of disease progression as measured by the composite Unified Huntington’s Disease Rating Scale at 36 months compared to a propensity score-matched external control.
Neurona Therapeutics Inc. has completed an upsized, oversubscribed $102 million financing round, the third company to do so in a month that’s only four days old. The privately held company’s lead asset is NRTX-1001, a regenerative cell therapy derived from human pluripotent stem cells.
The U.S. FDA has greenlit the first steps of Uniqure NV’s accelerated approval pathway for gene therapy AMT-130 to treat Huntington’s disease. The agency said data from the ongoing phase I/II studies compared to natural history external control are muscular enough to get the process going without having to dive into additional studies.
Uniqure NV shares (NASDAQ:QURE) closed July 9 at $6.67, up $2.89, or 76%, after the firm made public updated interim data including up to 24 months of follow-up findings from 29 treated patients enrolled in the ongoing U.S. and European phase I/II trials of AMT-130 for Huntington’s disease (HD).
