Comparison of #Lemborexant With Placebo and #Zolpidem Tartrate Extended Release for the Treatment of Older Adults With #Insomnia Disorder

..Both doses of lemborexant therapy demonstrated statistically significant greater changes from baseline on objective sleep onset as assessed by latency to persistent sleep (log transformed) that was measured using polysomnography at the end of 1 month of treatment (nights 29 and 30) compared with placebo..

For nights 29 and 30, as measured using polysomnography, the mean change from baseline in sleep efficiency .. and wake-after-sleep onset .. were significantly greater for both doses of lemborexant therapy compared with placebo. Also, for nights 29 and 30, wake-after-sleep onset in the second half of the night .. was significantly greater for both doses of lemborexant therapy compared with zolpidem therapy measured using polysomnography.

Six participants (4 in the zolpidem group and 2 in the lemborexant 5 mg group) reported serious adverse events; none were treatment-related. Other adverse events were mostly mild or moderate in severity.

Conclusions and Relevance In this randomized clinical trial, lemborexant therapy significantly improved both sleep onset and sleep maintenance, including in the second half of the night, compared with both placebo and zolpidem measured objectively using polysomnography. Lemborexant therapy was well tolerated.

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