Treatment of primary insomnia with melatonin: a double-blind, placebo-controlled, crossover study - PubMed (original) (raw)
Clinical Trial
Treatment of primary insomnia with melatonin: a double-blind, placebo-controlled, crossover study
Luis G Almeida Montes et al. J Psychiatry Neurosci. 2003 May.
Abstract
Objective: To assess the hypnotic effect of melatonin in patients with primary insomnia.
Method: Ten patients (mean age 50 yr, range 30-72 yr) who met the DSM-IV criteria for primary insomnia received, in random order, 0.3 mg of melatonin, 1.0 mg of melatonin or placebo 60 minutes before bedtime. A crossover design was used so that each patient received each of the 3 treatments for a 7-day period (with a 5-day washout period between). After each 7-day treatment, night time electroencephalographic (EEG) records were collected, and each morning, subjects completed sleep logs and analogue-visual scales to document the amount and subjective quality of sleep.
Results: There were no significant differences in sleep EEG, the amount or subjective quality of sleep or side effects between the placebo, 0.3-mg melatonin or 1.0-mg melatonin treatments.
Conclusion: Melatonin did not produce any sleep benefit in this sample of patients with primary insomnia.
Objectif: Évaluer l'effet hypnotique de la mélatonine chez les patients qui souffrent d'insomnie primaire.
Méthode: Dix patients (âge moyen de 50 ans, intervalle de 30 à 72 ans) qui satisfaisaient aux critères relatifs à l'insomnie primaire selon le DSM-IV ont reçu, au hasard, 0,3 mg de mélatonine, 1,0 mg de mélatonine ou un placebo 60 minutes avant le coucher. On a suivi un plan croisé afin que chaque patient reçoive chacun des trois traitements pendant une période de sept jours (traitements séparés par une période d'élimination de cinq jours). Les sujets se sont soumis à un électroencéphalogramme (EEG) chaque soir et ont rempli des registres sur le sommeil et des échelles analogiques-visuelles pour consigner la durée du sommeil et sa qualité subjective.
Résultats: Il n'y avait pas de différences importantes au niveau de l'EEG, de la durée du sommeil ou de sa qualité subjective, ou des effets secondaires entre le traitement au placebo, à 0,3 mg de mélatonine ou à 1,0 mg de mélatonine.
Conclusion: La mélatonine n'a produit aucun avantage pour le sommeil chez cet échantillon de patients qui souffraient d'insomnie primaire.
Figures
Fig. 1: Mean (and standard deviation) sleep efficiency at baseline and with placebo, 0.3-mg melatonin and 1.0-mg melatonin treatments.
Fig. 2: Mean (and standard deviation) total sleep time at baseline and with placebo, 0.3-mg melatonin and 1.0-mg melatonin treatments.
Fig. 3: Mean (and standard deviation) latency to stage 1, stage 2 and delta stage with placebo, 0.3-mg melatonin and 1.0-mg melatonin treatments.
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