Private drug discovery company Cerevance reported positive clinical trial results for CVN424, an experimental treatment for Parkinson’s disease.

The U.S. FDA approved Kyowa Kirin’s Nourianz (istradefylline) as an add-on treatment to levodopa/carbidopa in adults with Parkinson’s disease who experience “off” episodes.

San Diego-based Neurocrine Biosciences presented data from two Phase III clinical trials of opicapone, a once-daily, oral catechol-O-methyltransferase (COMT) inhibitor for Parkinson’s disease.