FDA Approves Ingrezza for Huntington’s Chorea
FDA has approved a Neurocrine Biosciences NDA for Ingrezza (valbenazine) capsules for treating adults with chorea associated with Huntington’s disease (HD). Previously, the drug was approved for treating adults with tardive dyskinesia.
Approval was based on data from two clinical studies conducted in collaboration with the Huntington Study Group — the KINECT-HD Phase 3 study and the ongoing KINECT HD2 open-label extension trial. Data show that Ingrezza reduced chorea severity by about 40% from baseline to maintenance, and about half of patients saw a more than 40% reduction in chorea severity by Week 12, the company says.
On the safety side, treatment-emergent adverse events reported in the trials included somnolence and sedation, urticaria, rash and insomnia.