Esmirtazapine in non-elderly adult patients with primary insomnia: efficacy and safety from a randomized, 6-week sleep laboratory trial - PubMed (original) (raw)
Randomized Controlled Trial
doi: 10.1016/j.sleep.2015.04.001. Epub 2015 Apr 16.
Affiliations
- PMID: 26047892
- DOI: 10.1016/j.sleep.2015.04.001
Randomized Controlled Trial
Esmirtazapine in non-elderly adult patients with primary insomnia: efficacy and safety from a randomized, 6-week sleep laboratory trial
Neely Ivgy-May et al. Sleep Med. 2015 Jul.
Abstract
Objective: Esmirtazapine (Org 50081), a medication that binds with high affinity to serotonin 5-HT2A and histamine-1 receptors, was evaluated as a potential treatment for insomnia.
Methods: Adults with primary insomnia were treated with esmirtazapine (3.0 or 4.5 mg) or placebo in this 6-week, double-blind, randomized, polysomnography (PSG) study. The end points included wake time after sleep onset (WASO) (primary), latency to persistent sleep, and total sleep time. Patient-reported parameters were also evaluated, including sleep quality and satisfaction with sleep duration. Residual daytime effects and rebound insomnia (sleep parameters during the single-blind placebo run-out week after treatment ended) were also assessed.
Results: Overall, 419 patients were randomized and 366 (87%) completed treatment. The median decrease in PSG WASO (double-blind average) was 20.5 min for placebo, and 52.0 min and 53.6 min for the 3.0- and 4.5-mg esmirtazapine groups, respectively (P < 0.0001 vs. placebo for both doses). Changes in the other PSG parameters and in all patient-reported parameters were also statistically significant with both doses versus placebo. Overall, 35-42% of esmirtazapine-treated patients had adverse events (AEs) versus 29% in the placebo group. AEs were mild or moderate in most esmirtazapine-treated patients. Furthermore, the incidence of AEs leading to discontinuation was low (<8%).
Conclusions: Six weeks of treatment with esmirtazapine was associated with consistent improvements in objective and patient-reported parameters of sleep onset, maintenance, and duration. It was generally well tolerated, and residual daytime effects were minimal and no rebound insomnia was observed.
Keywords: Clinical trial; Esmirtazapine; Insomnia; Polysomnography; Sleep maintenance.
Copyright © 2015. Published by Elsevier B.V.
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