Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 11, 2026, 4:50 PM EDT

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Showing 1–10 of 10 matching trials from the live ClinicalTrials.gov search.
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Completed Not applicable Interventional Accepts healthy volunteers

Circadian Rhythms and Cardiovascular Risk

NCT02202811
Conditions
Obstructive Sleep Apnea
Interventions
Forced Desynchrony
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
40 Years to 80 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Portland, Oregon
Recruiting Not applicable Interventional Accepts healthy volunteers

Nighttime Synchrony of Your Nutrition and Circadian Health

NCT07329283
Conditions
Sleep, Metabolism Changes, Circadian Rhythm, Lifestyle Factors, Sleep Hygiene, Sleep Hygiene, Inadequate, Sleep Deprivation, Insufficient Sleep, Circadian Misalignment, Circadian Dysregulation, Light Exposure
Interventions
Central Clock Misalignment, Peripheral Misalignment
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 35 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2031
U.S. locations
1
States / cities
Salt Lake City, Utah
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Physiological Chronobiome Modified by Age, Sex and Under Evoked Conditions

NCT04225442
Conditions
Healthy, Healthy Aging
Interventions
Fatty meal to challenge the physiological chronobiome in healthy young and old
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 75 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Results available

Lighting Intervention for Cancer-related Fatigue

NCT04827446
Conditions
Breast Cancer, Prostate Cancer, Hematologic Malignancy, Survivorship, Fatigue
Interventions
Wearable Sensor, Blue-blocking glasses, Clear glasses, Full SYNC app, "Dummy" SYNC app
Other
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Sleep Disturbance, Insomnia, Acute Coronary Syndrome
Interventions
BLT Intervention, BLB Intervention, Sleep Hygiene Education
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Conditions
Shift Work Sleep Disorder
Interventions
Personalized circadian mHealth
Other
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Novi, Michigan
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Melatonin Levels in Smith Magenis Syndrome (SMS)

NCT00691574
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
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Bariatric Surgery on Adipocyte Metabolism

NCT04242524
Conditions
Metabolic Syndrome, Obesity
Interventions
Circadian Clock Alignment, Circadian Clock Control
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Circadian Dysregulation
Interventions
Ramelteon, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 50 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
4
States / cities
Miami, Florida • Pembroke Pines, Florida • Honolulu, Hawaii + 1 more
Completed Not applicable Interventional Accepts healthy volunteers

Light Timing Study

NCT04753190
Conditions
Chronobiology, Light, Sleep, Circadian Rhythm, Adolescence
Interventions
Baseline Sleep Satiation and Phase Stabilization, Gradually Shifted Sleep
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 20 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Chicago, Illinois