Supernus Parkinson’s Off Episodes NDA Refiled

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FDA has accepted for review a Supernus Pharmaceuticals NDA resubmission for its apomorphine infusion device (SPN-830) for the continuous treatment of motor fluctuations (OFF episodes) in Parkinson’s disease. The agency has set a user fee review action target date of 4/5/2024.

FDA 10/2022 issued a complete response letter on the NDA and requested “additional information and analysis related to the infusion device and drug product across several areas of the NDA including, but not limited to, labeling, product quality and manufacturing, device performance and risk analysis,” the company said at the time. The agency also said that before an approval could be granted, inspections are needed because they could not be completed in a timely manner due to Covid-19 travel restrictions.

The submission was met with FDA skepticism when first filed in 2020. At the time, the agency sent the company a refusal-to-file letter, saying the NDA was not sufficiently complete to permit a substantive review (see story) and asking for certain documents and reports to be submitted in support of the application.

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