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Melatonin improves sleep in asthma: a randomized, double-blind, placebo-controlled study.
Francineide L Campos1, Francisco P da Silva-Júnior, Veralice M S de Bruin
1Department of Pharmacy, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
American Journal of Respiratory and Critical Care Medicine
|August 13, 2004
Summary
Melatonin supplementation significantly improved subjective sleep quality in patients with asthma. However, it did not impact asthma symptoms or lung function, indicating a need for further research.
Area of Science:
- Pulmonary Medicine
- Sleep Science
- Pharmacology
Background:
- Disturbed sleep is a prevalent issue among individuals diagnosed with asthma.
- Melatonin, a hormone with sleep-inducing properties, also exhibits potential effects on smooth muscle tone and inflammation, making it a candidate for asthma management.
Purpose of the Study:
- To investigate the efficacy of melatonin in improving sleep quality for patients experiencing mild to moderate asthma.
- To assess the impact of melatonin on various asthma-related parameters.
Main Methods:
- A randomized, double-blind, placebo-controlled study was conducted over 4 weeks.
- Twenty-two female participants with asthma received either 3 mg of melatonin or a placebo.
- Sleep quality, daytime somnolence, pulmonary function, medication use, and asthma symptoms were systematically monitored.
Main Results:
- Melatonin treatment led to a statistically significant improvement in subjective sleep quality compared to the placebo group (p = 0.04).
- No significant differences were observed between the melatonin and placebo groups regarding asthma symptoms, the need for relief medication, or daily peak expiratory flow rate.
Conclusions:
- Melatonin demonstrates potential as an aid for improving sleep in individuals with asthma.
- Further research is warranted to explore the long-term effects of melatonin on airway inflammation and bronchial hyperresponsiveness in asthma patients before widespread recommendation.