May 13 2026
 Alkermes Announces Positive Topline Results From REVITALYZ℠ Phase 3 Study Evaluating LUMRYZ® (sodium oxybate) Extended-Release in Adults With Idiopathic Hypersomnia

Posted at May 13 2026
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DUBLIN–(BUSINESS WIRE)–May 12, 2026– Alkermes plc (Nasdaq: ALKS) today announced positive topline results from the REVITALYZ℠ double-blind, placebo-controlled, randomized withdrawal, multicenter phase 3 study evaluating the investigational use of LUMRYZ® (sodium oxybate) extended-release oral suspension in adults with idiopathic hypersomnia (IH). LUMRYZ met the study’s primary endpoint, demonstrating statistically significant improvements in excessive daytime sleepiness compared to placebo as measured by the change in Epworth Sleepiness Scale (ESS)1 score (p<0.0001).

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