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ClinicalTrials.gov public records Last synced Oct 22, 2026, 1:21 AM EDT

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Showing 1–24 of 85 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: 2 mg Melatonin Clear all
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Melatonin Levels in Smith Magenis Syndrome (SMS)

NCT00691574
View directory record Official record
Conditions
Chromosome Disorders
Interventions
Melatonin, Enviro-light artificial light box
Dietary Supplement · Device
Lead sponsor
Oregon Health and Science University
Other
Eligibility
3 Years to 85 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2009
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 27, 2019 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Melatonin on Cardiovascular and Thermoregulatory Responses to Stress

NCT07138443
View directory record Official record
Conditions
Stress, Mental Stress
Interventions
Melatonin 3 MG Oral Tablet, Placebo Oral Tablet
Dietary Supplement
Lead sponsor
Baylor University
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 4 Interventional Results available

Total Joint Arthroplasty and Sleep

NCT03968939
View directory record Official record
Conditions
Primary Total Hip Arthroplasty, Primary Total Knee Arthroplasty
Interventions
Diphenhydramine (Benadryl), Melatonin, Sleep Hygiene Education
Drug · Dietary Supplement · Behavioral
Lead sponsor
James A. Keeney
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 16, 2024 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 2 Interventional

Efficacy and Safety of Circadin for Non-24 Hour Sleep-Wake Disorder in Totally Blind Subjects

NCT00972075
View directory record Official record
Conditions
Non-24 Hour Sleep-Wake Disorder, Blindness
Interventions
melatonin (Circadin), placebo
Drug
Lead sponsor
Neurim Pharmaceuticals Ltd.
Industry
Eligibility
20 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
2
States / cities
Atlanta, Georgia • New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 9, 2009 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 2 Interventional

Effects of Hydrocortisone, Melatonin, and Placebo on Jet Lag

NCT00097474
View directory record Official record
Conditions
Jet Lag
Interventions
Hydrocortisone, Melatonin, Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 22, 2026, 1:21 AM EDT
Terminated Phase 1 Interventional Results available

Melatonin Postoperative Sleep Study in Breast Cancer Patients

NCT00506064
View directory record Official record
Conditions
Breast Cancer
Interventions
Melatonin, Placebo, Questionnaire
Drug · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
40 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 5, 2012 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Melatonin and Nighttime Blood Pressure in African Americans--24 mg Study

NCT01114373
View directory record Official record
Conditions
Hypertension
Interventions
Melatonin, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 64 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 26, 2016 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Melatonin Treatment for Induced Transient Insomnia

NCT00950885
View directory record Official record
Conditions
Delayed Sleep Phase Disorder, Jet-lag, Shift-work Disorder
Interventions
Low Dose Melatonin, Placebo, High Dose Melatonin
Biological
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 8, 2017 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pharmacotherapy and Mechanisms of Sleep Disturbance in Alcohol Dependence

NCT01014533
View directory record Official record
Conditions
Alcohol Dependence, Insomnia
Interventions
Placebo dispensed to subject., Gabapentin dispensed to subject.
Drug
Lead sponsor
Dr. Kirk Brower
Other
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 6, 2017 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Strengthening Circadian Signals

NCT03490864
View directory record Official record
Conditions
Improving Cardiometabolic Outcomes in Adults
Interventions
Melatonin 1 mg, Placebos, Meal Timing, NON Meal Timing
Dietary Supplement · Other
Lead sponsor
Northwestern University
Other
Eligibility
35 Years to 54 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 23, 2025 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 1Phase 2 Interventional

The Effect of Melatonin Upon Post-Acute Withdrawal Among Males in a Residential Treatment Program

NCT02431728
View directory record Official record
Conditions
Substance Withdrawal Syndrome
Interventions
Melatonin, Matched Placebo
Dietary Supplement
Lead sponsor
Duquesne University
Other
Eligibility
18 Years and older · Male only
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 8, 2016 · Synced Oct 22, 2026, 1:21 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 22, 2026, 1:21 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 22, 2026, 1:21 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Facilitating Adjustment to Simulated Jet Lag

NCT05382923
View directory record Official record
Conditions
Circadian Rhythm Sleep Disorder, Jet Lag Type
Interventions
Bright Light, Bright Light + Exercise + Melatonin, Control
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated May 19, 2022 · Synced Oct 22, 2026, 1:21 AM EDT
Recruiting Phase 1 Interventional

Safety of Erythropoietin and Melatonin for Very Preterm Infants With Intraventricular Hemorrhage

NCT05617833
View directory record Official record
Conditions
Intraventricular Hemorrhage of Prematurity
Interventions
MLT+EPO, Placebo
Combination Product · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
12 Hours to 2 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
St. Petersburg, Florida • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 22, 2026, 1:21 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Melatonin Treatment for Night-Eating Syndrome

NCT02500017
View directory record Official record
Conditions
Night-eating Syndrome
Interventions
Melatonin, Placebo
Dietary Supplement · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Melatonin-Micronutrients for Osteopenia Treatment Study

NCT01870115
View directory record Official record
Conditions
Osteoporosis, Osteopenia
Interventions
Fiber Pill, Melatonin, Strontium citrate, Vitamins D3 and K2
Dietary Supplement
Lead sponsor
Duquesne University
Other
Eligibility
Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 2 Interventional Results available

Bringing Relief to Adolescents Naturally Using Melatonin for Migraine

NCT02344316
View directory record Official record
Conditions
Migraine in Adolescents
Interventions
Melatonin, Placebo
Drug · Other
Lead sponsor
Amy Gelfand
Other
Eligibility
12 Years to 17 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 9, 2021 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 2 Interventional Results available

Sleep Laboratory Study to Investigate the Safety and Efficacy of Neu-P11 in Primary Insomnia Patients

NCT01489969
View directory record Official record
Conditions
Primary Insomnia
Interventions
Neu-P11
Drug
Lead sponsor
Neurim Pharmaceuticals Ltd.
Industry
Eligibility
18 Years to 80 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
9
States / cities
San Diego, California • Hallandale, Florida • South Miami, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2018 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Phase 2 Interventional

RECOVER-SLEEP: Platform Protocol

NCT06404086
View directory record Official record
Conditions
Long COVID, Long COVID-19, Hypersomnia, Sleep Disturbance
Interventions
Modafinil, Modafinil Placebo, Solriamfetol, Solriamfetol Placebo, Melatonin, Melantonin Placebo, Tailored lighting (TL) Active, Tailored lighting (TL) Placebo
Drug · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
830 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
47
States / cities
Phoenix, Arizona • Tucson, Arizona • Palo Alto, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Oct 22, 2026, 1:21 AM EDT
Recruiting Phase 2 Interventional

Sleep, Diabetic Retinopathy and Melatonin

NCT04547439
View directory record Official record
Conditions
Diabetes Mellitus, Diabetic Retinopathy
Interventions
Melatonin, Placebo
Drug · Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
40 Years to 65 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Aging Program Project Grant 6

NCT03490825
View directory record Official record
Conditions
Improving Cardiometabolic Outcomes in Older Adults
Interventions
Melatonin 1 mg, Placebos, Meal timing, Non-Meal timing
Dietary Supplement · Other
Lead sponsor
Northwestern University
Other
Eligibility
55 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 23, 2025 · Synced Oct 22, 2026, 1:21 AM EDT
Terminated Not applicable Interventional Results available

Melatonin for Circadian Sleep Disorders in the Blind

NCT00911053
View directory record Official record
Conditions
Insomnia, Blindness, Daytime Sleepiness
Interventions
Melatonin, Regular Sleep Schedule, Light
Drug · Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 100 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2012
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 27, 2019 · Synced Oct 22, 2026, 1:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Interaction of Melatonin With MTNR1B Genotype on Glucose Control - Study 2

NCT03464084
View directory record Official record
Conditions
Glucose, Circadian Rhythm, Melatonin, Genes, Light
Interventions
placebo, melatonin, bright light, dim light
Drug · Dietary Supplement · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
21 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 26, 2022 · Synced Oct 22, 2026, 1:21 AM EDT