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5 studies found for:    (NCCAM) [SPONSOR-COLLABORATORS] (melatonin) [TREATMENT]

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Rank Status Study
1 Completed Effects of Melatonin on Insomnia Symptoms in Older Adults
Condition: Sleep Initiation and Maintenance Disorders
Interventions: Drug: Melatonin 0.4 mg;   Drug: Melatonin 4.0 mg;   Drug: Placebo
2 Recruiting Melatonin and Nighttime Blood Pressure in African Americans--24 mg Study
Condition: Hypertension
Interventions: Drug: 24 mg time release melatonin;   Drug: Placebo
3 Recruiting Melatonin and Nighttime Blood Pressure in African Americans
Condition: Hypertension
Interventions: Drug: 8 mg time-release melatonin pills;   Drug: Placebo pills
4 Completed
Has Results 		Melatonin Supplements for Improving Sleep in Individuals With Hypertension
Conditions: Sleep Disorders;   Hypertension
Interventions: Drug: Melatonin;   Drug: Placebo
5 Unknown † Effects of Different Colors of Light on Human Physiology
Conditions: Healthy;   Circadian Rhythm
Intervention: Device: Monochromatic visible light exposure
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† Indicates status has not been verified in more than two years