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ClinicalTrials.gov public records Last synced Oct 30, 2026, 8:38 AM EDT

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Showing 49–72 of 105 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Sleep timing Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The i Heart Rhythm Project: Healthy Sleep and Behavioral Rhythms for Obesity Prevention

NCT04445740
View directory record Official record
Conditions
Obesity Prevention
Interventions
i♥rhythm project
Behavioral
Lead sponsor
Baylor College of Medicine
Other
Eligibility
5 Years to 60 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Individually Tailored Lighting System to Improve Sleep in Older Adults

NCT01855126
View directory record Official record
Conditions
Sleep Disturbances
Interventions
Blue light, Red light
Other
Lead sponsor
Rensselaer Polytechnic Institute
Other
Eligibility
65 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Troy, New York
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Delayed Sleep Timing in Teens Study

NCT03806296
View directory record Official record
Conditions
Delayed Sleep Phase
Interventions
Increase morning bright light, Decrease evening blue light, Sleep scheduling, Monitor sleep, mood, and substance use
Other · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
16 Years to 19 Years
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional

Adjunctive Bright Light Therapy for Opioid Use Disorder

NCT05459922
View directory record Official record
Conditions
Opioid Use Disorder, Sleep Disturbance
Interventions
Wearable bright light therapy device, Wearable placebo light therapy device
Device
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 24, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Experimental Changes in Children's Sleep Duration and Timing: Effect on Obesity and Type 2 Diabetes Risk

NCT02979860
View directory record Official record
Conditions
Type2 Diabetes, Sleep
Interventions
Sleep duration 90 min, Sleep duration 45 min, Sleep timing
Behavioral
Lead sponsor
Temple University
Other
Eligibility
8 Years to 11 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced Oct 30, 2026, 8:38 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Sleep Timing and Insulin Resistance in Adolescents With Obesity

NCT02585830
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
15 Years to 19 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Sleep Restriction in Women

NCT02835261
View directory record Official record
Conditions
Sleep, Cardiovascular Disease, Obesity
Interventions
Sleep Restriction
Other
Lead sponsor
Columbia University
Other
Eligibility
20 Years to 75 Years · Female only
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Sleep and Meal Timing on Food Intake Regulation

NCT02347020
View directory record Official record
Conditions
Obesity, Diabetes Mellitus, Type II, Cardiovascular Disease
Interventions
Normal Sleep/ Normal Meal, Normal Sleep/ Late Meal, Late Sleep/ Normal Meal, Late Sleep/ Late Meal
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
20 Years to 49 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2016 · Synced Oct 30, 2026, 8:38 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Circadian Timing, Information Processing and Energy Balance Study

NCT04759755
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 60 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Recruiting Not applicable Interventional

Type 1 Diabetes REst for Metabolic Health

NCT06627504
View directory record Official record
Conditions
Type 1 Diabetes (T1D), Sleep Health
Interventions
Sleep Health and Circadian Timing Intervention
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
14 Years to 19 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Recruiting Not applicable Interventional

Mechanisms of Depression and Anhedonia in Adolescents: Linking Sleep to Reward- and Stress-Related Brain Function

NCT05691439
View directory record Official record
Conditions
Depression in Adolescence
Interventions
Sleep extension and advance, Regular sleep duration and timing
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
14 Years to 18 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sleep Timing, Eating and Activity Measurement Study

NCT04992611
View directory record Official record
Conditions
Sleep, Circadian Rhythm Disorders, Dietary Habits
Interventions
Sleep Extension (Early), Sleep Extension (Late)
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
14 Years to 18 Years
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison Across Multiple Types of Sleep Deprivation

NCT04211506
View directory record Official record
Conditions
Sleep Deprivation, Sleep Restriction
Interventions
Controlled sleep
Behavioral
Lead sponsor
Civil Aerospace Medical Institute
Federal
Eligibility
20 Years to 45 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Boston, Massachusetts • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Sep 29, 2023 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional

Settling Down for Sleep in ADHD: The Impact of Sensory and Arousal Systems on Sleep in ADHD

NCT06406309
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, Sleep Disturbance
Interventions
Power Down manipulation
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
6 Years to 13 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Sex and Age on Non-visual Light Input That Affects Sleep and Circadian Rhythms

NCT05829044
View directory record Official record
Conditions
Normal Physiology
Interventions
Pupillometry, Light box exposure
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Completed No phase listed Observational

Validation of Circadian Biomarkers in Patients With Sleep Disorders

NCT04690504
View directory record Official record
Conditions
Sleep Disorders, Circadian Rhythm, Circadian Rhythm Disorders, Circadian Rhythm Sleep Disorder, Advanced Sleep Phase Syndrome (ASPS), Delayed Sleep Phase Syndrome, Sleep Wake Disorders, Sleep Disorder
Interventions
dim light melatonin onset (DLMO)
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 6, 2024 · Synced Oct 30, 2026, 8:38 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Night Owl Metabolism

NCT06507722
View directory record Official record
Conditions
PreDiabetes, Overweight, Impaired Glucose Tolerance
Interventions
Timing of OGTT, Timing of Standardized Meal
Diagnostic Test · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 23 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Breath Biomarkers for Sleep Loss and Circadian Timing

NCT03980340
View directory record Official record
Conditions
Shift-Work Sleep Disorder, Shift Work Type Circadian Rhythm Sleep Disorder, Sleep Disorders, Circadian Rhythm, Sleep Disorders, Intrinsic, Advanced Sleep Phase Syndrome (ASPS), Advanced Sleep Phase Syndrome, Advanced Sleep Phase, Delayed Sleep Phase, Delayed Sleep Phase Syndrome, Non-24 Hour Sleep-Wake Disorder, Irregular Sleep-Wake Syndrome
Interventions
Short Nap Intervention, No Nap Intervention
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 3, 2025 · Synced Oct 30, 2026, 8:38 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Impact of Sleep Disruption on the Menstrual Cycle

NCT00456222
View directory record Official record
Conditions
Sleep, Circadian Rhythm, Menstrual Cycle
Interventions
Disrupting or changing the timing or the duration of sleep
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2009
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2009 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional

IBD-Sleep: A Pilot Study Looking at Changes in Sleep Timing and IBD Symptoms

NCT06094608
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Ulcerative Colitis, Crohn Disease
Interventions
Morning light treatment, Treatment-as-usual
Device · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 30, 2026, 8:38 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Biomarkers for Circadian Timing in Healthy Adults

NCT03956745
View directory record Official record
Conditions
Sleep Wake Disorders, Sleep Disorders, Circadian Rhythm, Sleep Disorders, Intrinsic, Advanced Sleep Phase Syndrome (ASPS), Advanced Sleep Phase Syndrome, Advanced Sleep Phase, Delayed Sleep Phase, Delayed Sleep Phase Syndrome, Non-24 Hour Sleep-Wake Disorder, Irregular Sleep-Wake Syndrome, Shift-Work Sleep Disorder, Shift Work Type Circadian Rhythm Sleep Disorder, Delayed Phase Sleep Syndrome
Interventions
sleep-wake timing, constant routine
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 3, 2025 · Synced Oct 30, 2026, 8:38 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Exploratory Study of Melatonin Induced Sleep Regularization in Severe Brain Injury

NCT02732288
View directory record Official record
Conditions
Disorders of Consciousness
Interventions
melatonin
Dietary Supplement
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 30, 2023 · Synced Oct 30, 2026, 8:38 AM EDT
Completed Not applicable Interventional

Sleep Quality in High School Students With Asthma - II

NCT03329066
View directory record Official record
Conditions
Asthma, Sleep, Asthma in Children
Interventions
MAST - Managing Asthma & Sleep in Teens, ASMA - Asthma Self-Management for Adol, Information & Referral Control Group
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
13 Years to 17 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
New York, New York • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Mar 4, 2021 · Synced Oct 30, 2026, 8:38 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Sleep and Circadian Treatments for Shift Workers

NCT03813654
View directory record Official record
Conditions
Shift-Work Sleep Disorder, Shift-Work Related Sleep Disturbance
Interventions
8-h Afternoon-Evening Sleep, 8-h Free Sleep
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 15, 2025 · Synced Oct 30, 2026, 8:38 AM EDT