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ClinicalTrials.gov public records Last synced May 22, 2026, 4:13 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Terminated No phase listed Observational Accepts healthy volunteers
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 2, 2025 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Shift-Work Sleep Disorder
Interventions
Transcranial Direct Current Stimulation
Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 24, 2021 · Synced May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
Conditions
Sleep
Interventions
Fixed restricted bedtimes, Sleep restriction with circadian misalignment
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
21 Years to 39 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2009
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 2, 2016 · Synced May 22, 2026, 4:13 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available
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 14, 2025 · Synced May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
Conditions
Sleep, Sleep Disturbance, Sleep Disorder, Shift Work, Health Knowledge, Attitudes, Practice, Health Behavior, Fatigue, Vibration; Exposure
Interventions
Enhanced Cab, Fit4Sleep
Other · Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
21 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 24, 2024 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Shift-work Disorder
Interventions
Phototherapy
Behavioral
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Novi, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 7, 2025 · Synced May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
Conditions
Physician Well-being, Cognitive Function, Diet Modification, Diet Habit, Shift-Work Related Sleep Disturbance, Sleep Deprivation
Interventions
Dietary Modification
Other
Lead sponsor
Stanford University
Other
Eligibility
21 Years and older
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 14, 2022 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Chronic Shift Work Sleep Disorder
Interventions
PROVIGIL 200 mg, Armodafinil 250 mg, Armodafinil 200 mg, Armodafinil 150 mg, Placebo
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005
U.S. locations
20
States / cities
Phoenix, Arizona • Tucson, Arizona • Hot Springs, Arkansas + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2013 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Sleep Disorder, Shift Work, Fatigue, Sleep Disturbance
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
Not listed
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Circadian Rhythm Sleep Disorder of Shift Work Type, Metabolic Disease, Insulin Sensitivity, Blood Pressure
Interventions
Time-restricted eating, Control eating
Behavioral
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
Conditions
Shift-Work Sleep Disorder, Insomnia, Restless Leg Syndrome, Obstructive Sleep Apnea, Impaired Driving
Interventions
Sleep health education provided via a web-based program, Sleep disorder detection and treatment, Optimization of Sleep in Fire Station
Behavioral · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
620 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 16, 2016 · Synced May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
Conditions
Osteoporosis, Circadian Rhythm Sleep Disorder, Shift Work Type
Interventions
Simulated short term night shift work schedule
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
20 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Shift-Work Sleep Disorder
Interventions
NIOSH shiftwork booklet, Sleep Enhancement Training System
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
40 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 22, 2010 · Synced May 22, 2026, 4:13 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers
Conditions
Lifestyle, Healthy, Sleepiness, Alertness, Shift-Work Related Sleep Disturbance, Work Related Stress, Self Efficacy, Self-Compassion
Interventions
Personalized lifestyle coaching and educational handout, Handout
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
21 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Shift Work Type Circadian Rhythm Sleep Disorder, Insomnia, Psychophysiological
Interventions
Shift Worker Intervention for Sleep Health
Behavioral
Lead sponsor
Oregon State University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced May 22, 2026, 4:13 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers
Conditions
Narcolepsy, Obstructive Sleep Apnea, Shift Work Sleep Disorder
Interventions
Modafinil/armodafinil
Drug
Lead sponsor
Cephalon, Inc.
Industry
Eligibility
Female only
Enrollment
191 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2023
U.S. locations
1
States / cities
West Chester, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 4, 2024 · Synced May 22, 2026, 4:13 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers
Conditions
Shift Work Type Circadian Rhythm Sleep Disorder, Eating Behavior
Interventions
Portion size
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
20 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
Conditions
Inflammation, Sleep Deprivation, Circadian Rhythm Sleep Disorder, Shift Work Type, Smoke Inhalation
Interventions
Sleep Restriction, Normal Sleep
Behavioral
Lead sponsor
University of Montana
Other
Eligibility
18 Years to 44 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced May 22, 2026, 4:13 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers
Conditions
Occupational Health, Sleep, Fatigue, Nurse
Interventions
RN-SLEEP, Healthy Habit - Educational Control
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced May 22, 2026, 4:13 AM EDT
Conditions
Shift-work Disorder
Interventions
Active phototherapy, Control phototherapy, Cognitive Behavioral Therapy (CBT), Sleep education control
Behavioral
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Novi, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced May 22, 2026, 4:13 AM EDT
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
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced May 22, 2026, 4:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
Conditions
Shift Work Type Circadian Rhythm Sleep Disorder, Diabetes Mellitus, Type 2, Circadian Rhythm Sleep Disorder, Shift Work Type, Insulin Resistance
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 60 Years
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
Conditions
Shift-Work Sleep Disorder, Insomnia, Restless Leg Syndrome, Obstructive Sleep Apnea, Impaired Driving, Injuries
Interventions
Sleep disorders education and screening
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
1,189 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced May 22, 2026, 4:13 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers
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 2, 2025 · Synced May 22, 2026, 4:13 AM EDT