title: A randomized, placebo-controlled trial of controlled release melatonin treatment of delayed sleep phase syndrome and impaired sleep maintenance in children with neurodevelopmental disabilities.
abstract: The purpose of this study was to determine the efficacy of controlled-release (CR) melatonin in the treatment of delayed sleep phase syndrome and impaired sleep maintenance of children with neurodevelopmental disabilities including autistic spectrum disorders. A randomized double-blind, placebo-controlled crossover trial of CR melatonin (5 mg) followed by a 3-month open-label study was conducted during which the dose was gradually increased until the therapy showed optimal beneficial effects. Sleep characteristics were measured by caregiver who completed somnologs and wrist actigraphs. Clinician rating of severity of the sleep disorder and improvement from baseline, along with caregiver ratings of global functioning and family stress were also obtained. Fifty-one children (age range 2-18 years) who did not respond to sleep hygiene intervention were enrolled. Fifty patients completed the crossover trial and 47 completed the open-label phase. Recordings of total night-time sleep and sleep latency showed significant improvement of approximately 30 min. Similarly, significant improvement was observed in clinician and parent ratings. There was additional improvement in the open-label somnolog measures of sleep efficiency and the longest sleep episode in the open-label phase. Overall, the therapy improved the sleep of 47 children and was effective in reducing family stress. Children with neurodevelopmental disabilities, who had treatment resistant chronic delayed sleep phase syndrome and impaired sleep maintenance, showed improvement in melatonin therapy.
authors: Melatonin Research Group, Department of Psychiatry, BC Children's Hospital, Vancouver, Canada.
authors: Michael B
authors: MB
authors: Wasdell
authors: James E
authors: JE
authors: Jan
authors: Melissa M
authors: MM
authors: Bomben
authors: Roger D
authors: RD
authors: Freeman
authors: Wop J
authors: WJ
authors: Rietveld
authors: Joseph
authors: J
authors: Tai
authors: Donald
authors: D
authors: Hamilton
authors: Margaret D
authors: MD
authors: Weiss
mesh_terms: D000293:Adolescent; D002492:Central Nervous System Depressants / Q000008:administration & dosage*; D002648:Child; D002659:Child Development Disorders, Pervasive / Q000150:complications*; D002675:Child, Preschool; D018592:Cross-Over Studies; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008297:Male; D008550:Melatonin / Q000008:administration & dosage*; D020178:Sleep Disorders, Circadian Rhythm / Q000150:complications / Q000188:drug therapy*; D007319:Sleep Initiation and Maintenance Disorders / Q000150:complications / Q000188:drug therapy*
chemical_list: D002492:Central Nervous System Depressants; D003692:Delayed-Action Preparations; D008550:Melatonin