Jazz Pharmaceuticals Presents Phase 3 Study Results of Xywav (calcium, magnesium, potassium, and sodium oxybates) Oral Solution in Adult Patients with Idiopathic Hypersomnia at 2021 American Academy of Neurology Annual Meeting

Xywav demonstrated statistically significant differences in change in Epworth Sleepiness Scale score (p-value <0.0001), Patient Global Impression of Change (p-value <0.0001) and the Idiopathic Hypersomnia Severity Scale (p-value <0.0001) 

The safety profile in this study was consistent with the known safety profile of Xywav with no new safety signals observed in this population

Company to host investor webcast today at 12:30 p.m. ET 

DUBLIN, April 20, 2021 /PRNewswire/ -- Jazz Pharmaceuticals plc (Nasdaq: JAZZ) today announced positive results from the Phase 3 study of Xywav^TM (calcium, magnesium, potassium, and sodium oxybates) oral solution in adult patients with idiopathic hypersomnia, which will be presented during the Clinical Trials Plenary Session of the 2021 American Academy of Neurology (AAN) Annual Meeting between 10:00 a.m. and 12:30 p.m. ET. Jazz will host an investor and analyst presentation via webcast today at 12:30 p.m. ET.

Today's presentation will further quantify the previously reported Phase 3 top-line results. These additional data were submitted to the U.S. Food and Drug Administration (FDA) in the supplemental New Drug Application that was recently accepted for filing and granted Priority Review.

"The efficacy and safety results demonstrate the potential Xywav has for people living with idiopathic hypersomnia, a debilitating, chronic sleep disorder for which there are no approved treatments in the U.S.," said Robert Iannone, M.D., M.S.C.E., executive vice president, research and development and chief medical officer of Jazz Pharmaceuticals. "Idiopathic hypersomnia significantly affects the social, educational and occupational functioning of those living with the disorder.^1,2,3,4 We have long understood that sleep disorders can impact every facet of someone's life and are committed to leading the evolution of sleep medicine to offer better therapies."

"The dramatic improvements Xywav provided for participants within this study give hope to not only those living with idiopathic hypersomnia, but also to their families, friends and care teams," said Yves Dauvilliers, M.D., director of the Sleep Disorders Centre at the Gui de Chauliac Hospital in Montpellier, France and lead investigator of the Phase 3 study. "People with idiopathic hypersomnia sleep a normal, or longer than normal, amount of sleep each night, but still experience excessive sleepiness during the day.^6,7 If the new indication is approved by the FDA, I believe Xywav will make an immediate impact on patients living with idiopathic hypersomnia."