BioMarin's Palynziq Gets FDA Approval For Phenylketonuria

 | May 24, 2018 10:57PM ET

BioMarin Pharmaceutical Inc. (NASDAQ:BMRN) announced that the FDA has approved its enzyme therapy, Palynziq (pegvaliase). The therapy will lower blood phenylalanine (Phe) levels in adult phenylketonuria (“PKU”) patients with uncontrolled blood Phe levels with existing treatment options.

The approval comes on the back of encouraging data from a phase III study – PRISM-2 – which showed that the drug significantly and substantially reduced blood Phe level compared to placebo.

Palynziq is the first enzyme therapy approved for the treatment of PKU in the United States. The drug will complement sales of Kuvan, also approved for PKU, but has lost exclusivity in the country. The company plans to launch the drug in June this year through a restricted program under a Risk Evaluation and Mitigation Strategy (“REMS”) called Palynziq REMS

An application in the EU is expected to be filed by end of the year.

Shares of the company were up 3.1% in after-hours trading following the announcement. BioMarin’s shares have lost 1% so far this year, which compares favorably with a decrease of 9.8% registered by the industry .