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Clinical trials of controlled-release melatonin in children with sleep-wake cycle disorders
J E Jan1, D Hamilton, N Seward
1Visually Impaired Program, BC's Children's Hospital, Vancouver, Canada. jjan@cw.bc.ca
Insights
This study explored controlled-release (CR) melatonin doses for children with chronic sleep disorders. CR melatonin effectively improved sleep maintenance in children with neurodevelopmental difficulties, often requiring higher doses than adults.
Area of Science:
- Pediatric Neurology
- Sleep Medicine
- Pharmacology
Background:
- Chronic sleep-wake cycle disorders are prevalent in children with severe neurodevelopmental difficulties.
- Limited research exists on effective melatonin dosing for this population.
Purpose of the Study:
- To investigate the effective doses of controlled-release (CR) melatonin in children with chronic sleep-wake cycle disorders.
- To compare the effectiveness of fast-release (FR) and CR melatonin formulations.
Main Methods:
- A randomized double-blinded cross-over design was initially used for 16 children.
- CR melatonin was further studied on a clinical basis for the remaining patients (total N=42).
- Effectiveness was assessed using sleep charts, clinical follow-up, and parental feedback.
Main Results:
- The average final CR melatonin dose was 5.7 mg (range: 2-12 mg).
- Fast-release (FR) melatonin was more effective for delayed sleep onset.
- Controlled-release (CR) melatonin formulations were superior for sleep maintenance.
Conclusions:
- Controlled-release melatonin is a viable treatment for sleep maintenance issues in children with neurodevelopmental disorders.
- Children may require higher melatonin doses compared to adults.
- Further research into optimal CR melatonin dosing for pediatric sleep disorders is warranted.
Abstract:
This is the first study to examine effective doses of controlled-release (CR) melatonin in children with chronic sleep wake cycle disorders. All 42 subjects had severe neurodevelopmental difficulties. Initially, a randomized double-blinded cross-over design was used in 16 children, comparing the effectiveness of fast-release (FR) and CR melatonin. In the remainder of the patients, the CR melatonin was studied on a clinical basis. The effectiveness of treatment was assessed by sleep charts and clinical follow-up. Emphasis was placed on the judgement of the parents, who had guidance from the physicians. The average final CR melatonin dose in the 42 patients was 5.7 mg (2-12 mg). The studies showed that the FR melatonin was most effective when there was only delayed sleep onset, but CR formulations were more useful for sleep maintenance. Children appeared to require higher doses than adults.
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