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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Daytime light exposure Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Medications for Opioid Use Disorder Photosensitive Retinal Ganglion Cell Function, Sleep, and Circadian Rhythms: Implications for Treatment

NCT06104280
View directory record Official record
Conditions
Opioid Use Disorder, Sleep Disturbance
Interventions
Post-Illumination Pupillary Response (PIPR), Polysomnography, Multiple Sleep Latency Test, Ecological Momentary Assessments, Actigraphy, DLMO, Melatonin Suppression Test
Other · Behavioral · Device
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 80 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 6, 2026, 2:19 AM EDT
Recruiting Not applicable Interventional

Mindfulness Intervention for Sleep Disturbance and Symptom Management in Hematologic Cancer Patients During and After Inpatient Treatment

NCT06532773
View directory record Official record
Conditions
Hematologic Malignancy
Interventions
Nite2Day+
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Circadian Rhythms and Sleep-Wake Cycles in Parkinson's Disease

NCT01742182
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Light exposure
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
55 Years to 85 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2020 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional

CBTI-CS: A Novel Cognitive-Behavioral Treatment for Insomnia in Cancer Survivors

NCT02756390
View directory record Official record
Conditions
Insomnia
Interventions
CBTI-CS, Sleep Hygiene, CBTI-CS via Telehealth
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced Sep 6, 2026, 2:19 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Light Exposure to Treat Sleep Disruption in Older People

NCT00427323
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders, Circadian Rhythm Sleep Disorders, Hypersomnia
Interventions
light exposure
Procedure
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 10, 2009 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Sleep Using Mentored Behavioral and Environmental Restructuring

NCT03327324
View directory record Official record
Conditions
Insomnia
Interventions
Sleep Using Mentored Behavioral and Environmental Restructuring
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Sep 6, 2026, 2:19 AM EDT
Recruiting Not applicable Interventional

Reestablishing Sleep and Circadian Alignment in Medical Intensive Care Unit (MICU) Patients Via a Mechanistic RCT of an Sleep Chronobundle

NCT05551325
View directory record Official record
Conditions
Critical Illness, Sleep Deprivation, Circadian Rhythm Sleep Disorder, Unspecified
Interventions
Chronobundle - light, chronobundle - feeding, chronobundle - mobility, chronobundle - sleep
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 6, 2026, 2:19 AM EDT
Active, not recruiting Not applicable Interventional

Circadian Health Regulation and Optimization for Rejuvenation Outcomes

NCT07203196
View directory record Official record
Conditions
Aging, Healthy, Blood Sugar; High, Blood Sugar (Glucose) Control, Time Restricted Eating, Circadian Dysregulation
Interventions
Circadian Rhythm Optimization
Behavioral
Lead sponsor
Salk Institute for Biological Studies
Other
Eligibility
50 Years to 80 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional Results available

Non-Pharmacological Interventions on Sleep in Post-Acute Rehabilitation

NCT00333619
View directory record Official record
Conditions
Sleep Disorders
Interventions
Nonpharmacological sleep intervention, Active control
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
60 Years and older
Enrollment
219 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Sepulveda, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2015 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional Results available

Light Therapy Treatment in Parkinson's Disease Patients With Daytime Somnolence

NCT01338649
View directory record Official record
Conditions
Parkinson's Disease, Sleep Disorder; Excessive Somnolence
Interventions
Bright Light Treatment (Sun Ray Sunbox SB-558), Dim red light (Sun Ray Sunbox SB-558)
Device
Lead sponsor
Northwestern University
Other
Eligibility
Not listed
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 28, 2023 · Synced Sep 6, 2026, 2:19 AM EDT
Recruiting Not applicable Interventional

Role of Sleep Reactivity in Shift Work Disorder

NCT05424406
View directory record Official record
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 Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional Results available

Sleep and Circadian Rhythms in Mechanically Ventilated Patients

NCT01276652
View directory record Official record
Conditions
Respiratory Failure, Critical Illness
Interventions
Environmental modification
Behavioral
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional

Optimized Sleep After Brain Injury: Sleep Hygiene Intervention After Traumatic Brain Injury

NCT02838082
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Sleep Hygiene Protocol, Standard of Care
Behavioral
Lead sponsor
Craig Hospital
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Englewood, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Sep 6, 2026, 2:19 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Artemis Sleep Countermeasures

NCT06531733
View directory record Official record
Conditions
Fatigue
Interventions
Sleep Promoting (pink noise), Wake Promoting (blue enriched light plus a nap)
Device
Lead sponsor
National Aeronautics and Space Administration (NASA)
Federal
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Mountain View, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2024 · Synced Sep 6, 2026, 2:19 AM EDT
Recruiting Phase 1Phase 2 Interventional

Mindfulness Meditation for Insomnia

NCT06972303
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders, Insomnia, Insomnia Chronic, Mindfulness, Telemedicine
Interventions
Instructed bedtime app-guided mindfulness meditation, Uninstructed app-guided mindfulness meditation, Sleep hygiene education
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional

Daytime Bright Light, Circadian Abnormalities, and Delirium in Medical ICU Patients

NCT03684460
View directory record Official record
Conditions
Circadian Rhythm Disorders
Interventions
Daytime Bright Light, Usual Light
Device
Lead sponsor
Yale University
Other
Eligibility
50 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Sep 6, 2026, 2:19 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Dose-dependent Impact of Daytime Lighting on Evening Responses to Light

NCT04882280
View directory record Official record
Conditions
Sleep
Interventions
Light
Behavioral
Lead sponsor
Palo Alto Veterans Institute for Research
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2022 · Synced Sep 6, 2026, 2:19 AM EDT
Recruiting Not applicable Interventional

PICU-related Sleep and Circadian Dysregulation Pilot Study

NCT06505447
View directory record Official record
Conditions
Circadian Dysrhythmia, Sleep Disturbance, Critical Illness, Children, Only
Interventions
Daytime light exposure, Daytime restricted feeding
Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
3 Years to 6 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 6, 2026, 2:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Bright Light on Co-occurring Cancer-related Symptoms in Breast Cancer Survivors

NCT03304587
View directory record Official record
Conditions
Breast Cancer
Interventions
Polysomnography (PSG), Rectal thermistor 400 Series, Bright blue-green light, Dim red light, Digital foot candle datalogging light meter, Patient-Reported Outcomes Measurement Information System (PROMIS)-Cancer-Fatigue, Patient-Reported Outcomes Measurement Information System (PROMIS)-Sleep Disturbance, Patient-Reported Outcomes Measurement Information System (PROMIS)-Depression, Patient-Reported Outcomes Measurement Information System (PROMIS)-Physical Function, Pittsburgh Sleep Quality Index (PSQI), Center for Epidemiological Studies - Depression, Montreal Cognitive Assessment (MoCA), European Organization for Research and Treatment of Cancer-Quality of Life Questionnaire (EORTC QLQ-C30), Daily Log
Diagnostic Test · Other
Lead sponsor
Michigan State University
Other
Eligibility
21 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced Sep 6, 2026, 2:19 AM EDT