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COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL
RESEARCH SUPPORT, NON-U.S. GOV'T
Efficacy of the selective extrasynaptic GABA A agonist, gaboxadol, in a model of transient insomnia: a randomized, controlled clinical trial.
Sleep Medicine 2008 May
OBJECTIVE: The hypnotic efficacy of gaboxadol, a selective extrasynaptic GABA A agonist (SEGA), was evaluated in a phase-advance model of transient insomnia.
METHODS: Healthy subjects (18-64 years) completed a randomized, double-blind, parallel group study in which the sleep period was advanced 4h from habitual sleep time. Polysomnographic (PSG) and self-reported sleep measures were used to compare gaboxadol 10mg (N =271) and 15 mg (N =274) versus placebo (N =277).
RESULTS: In the placebo group, the phase-advance procedure disrupted sleep maintenance as measured by PSG wakefulness after sleep onset (WASO) and self-reported WASO (sWASO), and also, to a lesser extent, disrupted sleep onset as measured by PSG latency to persistent sleep (LPS) and self-reported time to sleep onset (sTSO). Both doses of gaboxadol decreased WASO and sWASO versus placebo (p
CONCLUSIONS: Gaboxadol 10 and 15 mg were efficacious in significantly reducing the sleep maintenance and sleep onset disruption produced by this model of transient insomnia, with effects generally being most pronounced for the 15 mg dose. Gaboxadol also enhanced SWS.
METHODS: Healthy subjects (18-64 years) completed a randomized, double-blind, parallel group study in which the sleep period was advanced 4h from habitual sleep time. Polysomnographic (PSG) and self-reported sleep measures were used to compare gaboxadol 10mg (N =271) and 15 mg (N =274) versus placebo (N =277).
RESULTS: In the placebo group, the phase-advance procedure disrupted sleep maintenance as measured by PSG wakefulness after sleep onset (WASO) and self-reported WASO (sWASO), and also, to a lesser extent, disrupted sleep onset as measured by PSG latency to persistent sleep (LPS) and self-reported time to sleep onset (sTSO). Both doses of gaboxadol decreased WASO and sWASO versus placebo (p
CONCLUSIONS: Gaboxadol 10 and 15 mg were efficacious in significantly reducing the sleep maintenance and sleep onset disruption produced by this model of transient insomnia, with effects generally being most pronounced for the 15 mg dose. Gaboxadol also enhanced SWS.
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