Amneal Plans Parkinson’s NDA for IPX-203

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Amneal Pharmaceuticals says it will file an NDA for IPX-203 in mid-2022, after reporting positive topline results from the pivotal Phase 3 RISE-PD clinical trial that evaluated the drug in patients with Parkinson’s disease (PD) who have motor fluctuations. The trial met its primary endpoint, demonstrating superior “good on” time from baseline in hours per day at the end of the 13-week double-blind treatment period, the company says.
 

“Phase 3 topline results showed the study was successful in demonstrating statistically significant improvement in efficacy for IPX-203 compared to immediate-release [carbidopa-levodopa] CD/LD, even when IPX-203 was dosed on average three times per day and immediate-release CD/LD was dosed on average five times per day,” Amneal says. “The secondary endpoint for change from baseline in ‘off’ time showed IPX-203 resulted in significantly less off time compared with immediate-release CD/LD.”

 

IPX-203 is described by the company as a novel, oral formulation of CD/LD extended-release capsules for patients with PD who have motor fluctuations. It was developed with an innovative formulation that contains immediate-release and extended-release granules, and mucoadhesive polymers, to provide rapid absorption and maximize levodopa absorption, it says.

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