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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Melatonin Clear all
Completed Phase 4 Interventional Results available

Effects of Kuvan on Melatonin Secretion

NCT01617070
View directory record Official record
Conditions
Phenylketonuria (PKU)
Interventions
Kuvan, Large Neutral Amino Acid Therapy
Drug · Dietary Supplement
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 17, 2016 · Synced Jul 23, 2026, 7:22 PM 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 4, 2026 · Synced Jul 23, 2026, 7:22 PM EDT
Terminated Phase 2 Interventional Results available

Safety and Efficacy of Melatonin in Outpatients Infected With COVID-19

NCT04474483
View directory record Official record
Conditions
COVID-19
Interventions
Melatonin, Placebo (Methylcellulose) capsule
Drug · Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2024 · Synced Jul 23, 2026, 7:22 PM 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 21, 2023 · Synced Jul 23, 2026, 7:22 PM EDT
Terminated Not applicable Interventional

Does Melatonin Affect Anesthetic MAC (Minimum Alveolar Concentration)?

NCT03241004
View directory record Official record
Conditions
Anesthesia
Interventions
Sleep Mask
Other
Lead sponsor
Englewood Hospital and Medical Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Englewood, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 19, 2021 · Synced Jul 23, 2026, 7:22 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Melatonin and Nighttime Blood Pressure in African Americans-8 mg Study

NCT01114360
View directory record Official record
Conditions
Hypertension
Interventions
Melatonin, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 64 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 17, 2015 · Synced Jul 23, 2026, 7:22 PM 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 3, 2019 · Synced Jul 23, 2026, 7:22 PM 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 26, 2019 · Synced Jul 23, 2026, 7:22 PM EDT
Terminated Phase 1Phase 2 Interventional

Melatonin Effects on Luteinizing Hormone

NCT00288262
View directory record Official record
Conditions
Hot Flashes
Interventions
melatonin 0.5 mg
Drug
Lead sponsor
Scripps Health
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Feb 6, 2006 · Synced Jul 23, 2026, 7:22 PM EDT
Completed Phase 2 Interventional Results available

Melatonin Supplements for Improving Sleep in Individuals With Hypertension

NCT00238108
View directory record Official record
Conditions
Sleep Disorders, Hypertension
Interventions
Melatonin, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
35 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 13, 2017 · Synced Jul 23, 2026, 7:22 PM EDT
Completed Phase 1Phase 2 Interventional

Melatonin and Sleep in Preventing Delirium in the Hospital

NCT02597231
View directory record Official record
Conditions
Delirium
Interventions
Melatonin, Placebo
Dietary Supplement · Other
Lead sponsor
Scripps Health
Other
Eligibility
65 Years to 100 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Oct 3, 2017 · Synced Jul 23, 2026, 7:22 PM EDT
Recruiting Phase 4 Interventional

A SMART Approach to Evaluating the Benefits of Common Prescription and OTC Medications for Insomnia

NCT07542756
View directory record Official record
Conditions
Insomnia, Insomnia Disorder, Chronic Insomnia, Chronic Insomnia Disorder
Interventions
Sleep Hygiene Education, Melatonin IR, 3 mg, Melatonin IR, 5 mg, Diphenhydramine, 25 mg, Diphenhydramine, 50 mg, Doxepin, 3 mg, Doxepin, 6 mg, Trazodone, 50 mg, Trazodone, 100 mg, Placebo, Zolpidem, 5 mg, Zolpidem, 10 mg
Other · Dietary Supplement · Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 80 Years
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jul 23, 2026, 7:22 PM EDT
Completed Not applicable Interventional

Out-patient Wake Therapy, Light Therapy and Sleep Phase Advance for Depression

NCT02750631
View directory record Official record
Conditions
Unipolar Depression
Interventions
Triple Therapy
Other
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 28, 2017 · Synced Jul 23, 2026, 7:22 PM 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 7, 2016 · Synced Jul 23, 2026, 7:22 PM EDT
Recruiting Early Phase 1 Interventional

Melatonin as a Neuroprotective Therapy in Neonates With HIE Undergoing Hypothermia

NCT02621944
View directory record Official record
Conditions
Hypoxic Ischemic Encephalopathy
Interventions
Melatonin, Magnetic Resonance Imaging, Pharmacokinetics, Neurological Outcome Assessment
Drug · Other · Behavioral
Lead sponsor
University of Florida
Other
Eligibility
Up to 6 Hours
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
2
States / cities
Gainesville, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Jul 23, 2026, 7:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects and Mechanisms of Melatonin on Blood Pressure, Insulin Resistance, and Platelets

NCT03178396
View directory record Official record
Conditions
Prehypertension, Healthy
Interventions
melatonin
Dietary Supplement
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 7, 2017 · Synced Jul 23, 2026, 7:22 PM EDT
Not listed Phase 4 Interventional

Effects of Ramelteon (8mg) Alone and in Combination With Multi-Component Behavioral Therapy on Sleep and Circadian Phase in Patients With Chronic Insomnia

NCT01180855
View directory record Official record
Conditions
Insomnia
Interventions
Placebo, Rozerem 8mg, Rozerem 8mg in combination with Multi Component Behavior Therapy
Drug · Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 64 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 11, 2010 · Synced Jul 23, 2026, 7:22 PM 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 24, 2020 · Synced Jul 23, 2026, 7:22 PM EDT
Terminated Phase 2 Interventional Results available

Melatonin for Adolescent Migraine Prevention Study

NCT03150797
View directory record Official record
Conditions
Migraine
Interventions
Melatonin, Placebo oral capsule
Drug
Lead sponsor
Amy Gelfand
Other
Eligibility
10 Years to 17 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 12, 2023 · Synced Jul 23, 2026, 7:22 PM EDT
Active, not recruiting Not applicable Interventional

Melatonin and Sleep Spindles in Autism

NCT05716906
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
Melatonin
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Jul 23, 2026, 7:22 PM 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 21, 2025 · Synced Jul 23, 2026, 7:22 PM EDT
Completed Phase 2 Interventional

Melatonin and Radiation Therapy in Treating Patients With Brain Metastases

NCT00031967
View directory record Official record
Conditions
Metastatic Cancer, Radiation Toxicity, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
therapeutic melatonin, radiation therapy
Drug · Radiation
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
0 Years to 120 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
215
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 166 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2020 · Synced Jul 23, 2026, 7:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Strength Training Effects on Musculoskeletal Health

NCT04810975
View directory record Official record
Conditions
Musculoskeletal Diseases
Interventions
Muscle Strength Training
Device
Lead sponsor
Duquesne University
Other
Eligibility
30 Years and older
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Jul 23, 2026, 7:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Circadian Regulation of Sleep in Habitual Short Sleepers and Long Sleepers

NCT00001546
View directory record Official record
Conditions
Sleep Disorders
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 23, 2026, 7:22 PM EDT