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ClinicalTrials.gov public records Last synced Oct 7, 2026, 10:49 AM EDT

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Showing 97–120 of 206 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Therapeutic Melatonin Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Melatonin on Sleep, Ventilatory Control and Cognition at Altitude.

NCT03368352
View directory record Official record
Conditions
Altitude Hypoxia, Ventilation, Sleep, Oxidative Stress, Neurocognitive Dysfunction
Interventions
Melatonin, Hypoxia
Dietary Supplement · Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 31, 2019 · Synced Oct 7, 2026, 10:49 AM EDT
Recruiting No phase listed Observational

Advancing Identification of Circadian Delay in ADHD Youth: Associations With Clinical Heterogeneity and Cognition

NCT06971640
View directory record Official record
Conditions
ADHD - Attention Deficit Disorder With Hyperactivity, ADHD
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
6 Years to 9 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Filtered Eyewear to Prevent Light-induced Melatonin Suppression - Aim 1

NCT06310135
View directory record Official record
Conditions
Sleep Quality
Interventions
Filtered Eyewear, Unfiltered Eyewear, No Filters
Device · Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Menands, New York
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Not applicable Interventional Results available

Melatonin Metabolism Abnormality in Patients With Schizophrenia or Schizoaffective Disorder Treated With Olanzapine

NCT00512070
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Bipolar Disorder, Obesity, Metabolic Syndrome
Interventions
olanzapine and melatonin
Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2024
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jan 1, 2025 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Not applicable Interventional Results available

A SMART Design to Improve Sleep Disturbance in Adolescents With Neurodevelopmental Disorders

NCT03730194
View directory record Official record
Conditions
Autism Spectrum Disorder, Attention Deficit Hyperactivity Disorder, Sleep Disturbance
Interventions
Melatonin, Bedtime Bank
Dietary Supplement · Behavioral
Lead sponsor
University of Nebraska
Other
Eligibility
10 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 22, 2023 · Synced Oct 7, 2026, 10:49 AM EDT
Terminated Not applicable Interventional Results available

Blind Elderly Melatonin Treatment Study

NCT00692094
View directory record Official record
Conditions
Blindness
Interventions
Melatonin
Biological
Lead sponsor
Oregon Health and Science University
Other
Eligibility
55 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 27, 2019 · Synced Oct 7, 2026, 10:49 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Melatonin and Vaccine Response, Immunity, and Chronobiology Study

NCT04953754
View directory record Official record
Conditions
Vaccine Response, Sleep, Circadian Rhythm Disorders
Interventions
Melatonin, Phillips Actiwatch Spectrum Plus
Dietary Supplement · Device
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
18 Years to 64 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 10, 2023 · Synced Oct 7, 2026, 10:49 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Effect of Melatonin on Sleep Patterns of Resident Trainees During Night Float Shift

NCT05701969
View directory record Official record
Conditions
Sleep Disorders, Circadian Rhythm
Interventions
Melatonin, Placebo
Dietary Supplement · Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Oct 7, 2026, 10:49 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Mechanistic Effect of Walnut Consumption on Sleep Quality

NCT06430086
View directory record Official record
Conditions
Poor Sleep Quality
Interventions
Walnut consumption, HCHS consumption
Other
Lead sponsor
Columbia University
Other
Eligibility
45 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 7, 2026, 10:49 AM EDT
Recruiting Phase 4 Interventional

CLOZAPINE Response in Biotype-1

NCT04580134
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Bipolar 1 Disorder
Interventions
clozapine, risperidone
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
524 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
5
States / cities
Hartford, Connecticut • Athens, Georgia • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Phase 3 Interventional

Study of Melatonin: Sleep Problems in Alzheimer's Disease

NCT00000171
View directory record Official record
Conditions
Alzheimer Disease, Dyssomnias
Interventions
Melatonin
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
31
States / cities
Tucson, Arizona • Irvine, California • La Jolla, California + 26 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Early Phase 1 Interventional

Biological Clock Dysfunction in Optic Nerve Hypoplasia

NCT00825591
View directory record Official record
Conditions
Biological Clock Dysfunction, Optic Nerve Hypoplasia
Interventions
Melatonin, Placebo Comparator
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
2 Years to 10 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 25, 2020 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Not applicable Interventional

Melatonin Effects on Sleep and Circadian Rhythm in Youth and Young Adults With At-risk Symptoms

NCT03826563
View directory record Official record
Conditions
Psychosis, Sleep
Interventions
oral melatonin tablets (NatureMade brand), Placebo
Drug · Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
11 Years to 30 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 9, 2023 · Synced Oct 7, 2026, 10:49 AM EDT
Active, not recruiting Early Phase 1 Interventional

Melatonin and Osteogenic Loading on Osteopenia

NCT04233112
View directory record Official record
Conditions
Osteopenia
Interventions
Melatonin 5 mg, Osteogenic loading, Mock for Osteogenic Loading, Placebo (plant fiber) for melatonin
Drug · Device
Lead sponsor
Duquesne University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 22, 2025 · Synced Oct 7, 2026, 10:49 AM EDT
Not listed Phase 4 Interventional

Effect of Rozerem on Sleep Among People With Traumatic Brain Injury

NCT01207050
View directory record Official record
Conditions
Insomnia, Brain Injury
Interventions
Ramelteon, Placebo
Drug · Dietary Supplement
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
West Orange, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 9, 2014 · Synced Oct 7, 2026, 10:49 AM EDT
Not yet recruiting Not applicable Interventional

Sleep Harmonization Via Bundled Team-Based Interventions in the ICU

NCT07840560
View directory record Official record
Conditions
Sleep Deprivation, Critical Illness, Sleep-Wake Disorders, Bundle Care, Implementation Science, Delirium
Interventions
Nighttime noise & light reduction, Clustering patient-care interactions, Non-pharmacologic sleep aids, Daytime light exposure, Encourage out-of-bed activity, Medication management to support nighttime sleep
Behavioral · Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
62,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
7
States / cities
La Jolla, California • San Francisco, California • Orlando, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 7, 2026, 10:49 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Uterine Contractions Under Blue Light

NCT03691740
View directory record Official record
Conditions
Preterm Contractions
Interventions
Ocular light
Device
Lead sponsor
University of South Florida
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 2, 2018 · Synced Oct 7, 2026, 10:49 AM EDT
Withdrawn Phase 2 Interventional

Melatonin Supplementation to Improve Sleep in Patients With Heart Failure

NCT00869869
View directory record Official record
Conditions
Heart Failure, Sleep Disorders
Interventions
melatonin, placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
35 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 19, 2018 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Phase 2 Interventional Results available

Effect of Ramelteon on Smoking Abstinence

NCT02560324
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Ramelteon, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 4, 2019 · Synced Oct 7, 2026, 10:49 AM EDT
Terminated Phase 4 Interventional Results available

Melatonin CR for the Treatment of Impaired Sleep Maintenance in 4-8 Year Old Children With Autism Spectrum Disorders

NCT01033565
View directory record Official record
Conditions
Sleep Disorder
Interventions
Natrol
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
4 Years to 8 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 8, 2023 · Synced Oct 7, 2026, 10:49 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effectiveness of Combining Light and Non-Light Treatments for Jet Lag and Sleep Disorders

NCT00387179
View directory record Official record
Conditions
Sleep Disorders, Circadian Rhythm
Interventions
Melatonin, Methylxanthine, Light Therapy
Drug · Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 40 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 25, 2009 · Synced Oct 7, 2026, 10:49 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Melatonin on Insomnia Symptoms in Older Adults

NCT00230737
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders
Interventions
Melatonin 0.4 mg, Melatonin 4.0 mg, Placebo
Drug
Lead sponsor
Nalaka Gooneratne
Other
Eligibility
65 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 8, 2017 · Synced Oct 7, 2026, 10:49 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Acute Concussion and Melatonin

NCT04731974
View directory record Official record
Conditions
Concussion, Mild, Concussion, Brain, Pediatric ALL
Interventions
Melatonin 3 MG, Placebo
Drug · Other
Lead sponsor
Children's National Research Institute
Other
Eligibility
12 Years to 18 Years
Enrollment
254 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Oct 7, 2026, 10:49 AM EDT
Recruiting Phase 2 Interventional

Sleep to Reduce Incident Depression Effectively in Peripartum

NCT06430333
View directory record Official record
Conditions
Insomnia, Depression
Interventions
Perinatal Understanding of Mindful Awareness for Sleep (PUMAS), Treatment-as-usual (TAU)
Behavioral · Other
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Novi, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 7, 2026, 10:49 AM EDT