PMID- 29065953 OWN - NLM STAT- MEDLINE DCOM- 20180716 LR - 20181113 IS - 1550-9397 (Electronic) IS - 1550-9389 (Print) IS - 1550-9389 (Linking) VI - 13 IP - 11 DP - 2017 Nov 15 TI - Lemborexant, A Dual Orexin Receptor Antagonist (DORA) for the Treatment of Insomnia Disorder: Results From a Bayesian, Adaptive, Randomized, Double-Blind, Placebo-Controlled Study. PG - 1289-1299 LID - 10.5664/jcsm.6800 [doi] AB - STUDY OBJECTIVES: To identify dose(s) of lemborexant that maximize insomnia treatment efficacy while minimizing next-morning residual sleepiness and evaluate lemborexant effects on polysomnography (PSG) measures (sleep efficiency [SE], latency to persistent sleep [LPS], and wake after sleep onset [WASO]) at the beginning and end of treatment. METHODS: Adults and elderly subjects with insomnia disorder per the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition were enrolled in a multicenter, randomized, double-blind, placebo-controlled, Bayesian, adaptive, parallel-group study, receiving lemborexant (1, 2.5, 5, 10, 15, 25 mg) or placebo for 15 nights. Efficacy assessments included a utility function that combined efficacy (SE) and safety (residual morning sleepiness as measured by Karolinska Sleepiness Scale [KSS]), PSG measures, and sleep diary. Safety assessments included KSS, Digit Symbol Substitution Test, computerized reaction time tests, and adverse events (AEs). RESULTS: A total of 616 subjects were screened; 291 were randomized. Baseline characteristics were similar between lemborexant groups and placebo ( approximately 63% female, median age: 49.0 years). The study was stopped for early success after the fifth interim analysis when the 15-mg dose met utility index/KSS criteria for success; 3 other doses also met the criteria. Compared with placebo, subjects showed significant improvements in SE, subjective SE, LPS, and subjective sleep onset latency at the beginning and end of treatment for lemborexant doses >/= 5 mg (P < .05). WASO and subjective WASO showed numerically greater improvements for doses > 1 mg. AEs, mostly mild to moderate, included dose-related somnolence. CONCLUSIONS: Lemborexant doses ranging from 2.5-10 mg provided efficacy for the treatment of insomnia while minimizing next-morning residual sleepiness. CLINICAL TRIAL REGISTRATION: Title: A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Bayesian Adaptive Randomization Design, Dose Response Study of the Efficacy of E2006 in Adults and Elderly Subjects With Chronic Insomnia; URL: https://clinicaltrials.gov/ct2/show/NCT01995838; Identifier: NCT01995838. CI - (c) 2017 American Academy of Sleep Medicine FAU - Murphy, Patricia AU - Murphy P AD - Eisai Inc, Woodcliff Lake, New Jersey. FAU - Moline, Margaret AU - Moline M AD - Eisai Inc, Woodcliff Lake, New Jersey. FAU - Mayleben, David AU - Mayleben D AD - Community Research Inc, Cincinnati, Ohio. FAU - Rosenberg, Russell AU - Rosenberg R AD - NeuroTrials Research Inc, Atlanta, Georgia. FAU - Zammit, Gary AU - Zammit G AD - CLINILABS, Inc, New York, New York. FAU - Pinner, Kate AU - Pinner K AD - Eisai Ltd, Hatfield, United Kingdom. FAU - Dhadda, Shobha AU - Dhadda S AD - Eisai Inc, Woodcliff Lake, New Jersey. FAU - Hong, Quan AU - Hong Q AD - Eisai Inc, Woodcliff Lake, New Jersey. FAU - Giorgi, Luigi AU - Giorgi L AD - Eisai Ltd, Hatfield, United Kingdom. FAU - Satlin, Andrew AU - Satlin A AD - Eisai Inc, Woodcliff Lake, New Jersey. LA - eng SI - ClinicalTrials.gov/NCT01995838 PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial DEP - 20171115 PL - United States TA - J Clin Sleep Med JT - Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine JID - 101231977 RN - 0 (Drugs, Investigational) RN - 0 (Orexin Receptor Antagonists) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Bayes Theorem MH - Double-Blind Method MH - Drugs, Investigational/*therapeutic use MH - Female MH - Humans MH - Male MH - Middle Aged MH - Orexin Receptor Antagonists/*therapeutic use MH - Sleep Initiation and Maintenance Disorders/*drug therapy MH - Treatment Outcome MH - Young Adult PMC - PMC5656478 OTO - NOTNLM OT - Bayesian method OT - insomnia OT - orexin receptor antagonists EDAT- 2017/10/27 06:00 MHDA- 2018/07/17 06:00 PMCR- 2018/05/15 CRDT- 2017/10/26 06:00 PHST- 2017/02/06 00:00 [received] PHST- 2017/08/25 00:00 [accepted] PHST- 2018/05/15 00:00 [pmc-release] PHST- 2017/10/27 06:00 [pubmed] PHST- 2018/07/17 06:00 [medline] PHST- 2017/10/26 06:00 [entrez] AID - jc-17-00052 [pii] AID - 10.5664/jcsm.6800 [doi] PST - epublish SO - J Clin Sleep Med. 2017 Nov 15;13(11):1289-1299. doi: 10.5664/jcsm.6800.