Avadel Pharmaceuticals Announces Positive Topline Results from its Pivotal Phase 3 REST-ON Trial of Once-Nightly FT218 for the Treatment of Excessive Daytime Sleepiness and Cataplexy in Patients with Narcolepsy

The primary analysis of investigational, once-nightly FT218 at 9 g demonstrated highly statistically significant (p<0.001), and clinically meaningful improvement across all three co-primary endpoints compared to placebo

Once-nightly FT218 at 9 g was generally well-tolerated with commonly known sodium oxybate adverse reactions occurring at low rates

Once-nightly FT218 at the 7.5 g and 6 g dose levels achieved highly statistically significant (p<0.001), clinically meaningful improvements across all three co-primary endpoints compared to placebo

Management is scheduled to host a conference call at 8:30 a.m. EDT today to present the topline data

DUBLIN, Ireland, April 27, 2020 (GLOBE NEWSWIRE) -- Avadel Pharmaceuticals plc (Nasdaq: AVDL) announced today positive topline data from its pivotal Phase 3 REST-ON trial assessing the safety and efficacy of FT218, an investigational, once-nightly formulation of sodium oxybate for the treatment of excessive daytime sleepiness and cataplexy in patients with narcolepsy. The REST-ON trial, under a Special Protocol Assessment agreement with the FDA, met its three co-primary efficacy endpoints at all three doses (9 g, 7.5 g, and 6 g) demonstrating highly significant, clinically meaningful improvements on the Maintenance of Wakefulness Test (MWT), Clinical Global Impression-Improvement (CGI-I) and mean weekly cataplexy attacks.

“We are excited to see these positive topline data from the REST-ON study, where all three dose levels of once-nightly FT218 demonstrated a statistically significant and clinically meaningful improvement on the measures of the two prominent symptoms of narcolepsy, as well as an improvement in overall functioning compared to placebo,” said Jordan Dubow, M.D., Chief Medical Officer of Avadel. “Once-nightly FT218 delivered a clinically meaningful response within three weeks of treatment initiation, which was sustained through each treatment period. Commonly known sodium oxybate adverse reactions occurred at low rates at the highest dose level. We think once-nightly FT218, if approved, has the potential to be a meaningful contributor to patient care. We look forward to presenting more detailed data from the REST-ON study in publications and at upcoming medical conferences.”