DUBLIN, Oct. 8, 2020 /PRNewswire/ — Jazz Pharmaceuticals plc (Nasdaq: JAZZ) today announced positive top-line results from the Phase 3 double-blind, multicenter, placebo-controlled, randomized withdrawal study evaluating the efficacy and safety of an investigational use of Xywav™ (calcium, magnesium, potassium, and sodium oxybates) oral solution in adult patients with idiopathic hypersomnia.

Patients entering the study had excessive daytime sleepiness typical of the idiopathic hypersomnia population. All patients were treated with Xywav during the open-label titration period and clinically meaningful improvements in the Epworth Sleepiness Scale (ESS) were observed.