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ClinicalTrials.gov public records Last synced Oct 4, 2026, 10:43 PM EDT

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

Showing 49–72 of 146 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Phototherapy (Bright Light) Clear all
Completed Not applicable Interventional

Light Therapy for Obsessive-compulsive Disorder (OCD)

NCT05391503
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Light therapy, Placebo light therapy
Behavioral
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
18 Years to 35 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 4, 2026, 10:43 PM EDT
Terminated Not applicable Interventional Results available

Blue and Amber Light Exposure in Patients With Rectal and Pancreatic Cancer

NCT06164691
View directory record Official record
Conditions
Pancreatic Neoplasms, Rectal Neoplasms
Interventions
Blue light, Amber light, Ambient White Light
Device · Other
Lead sponsor
Matthew Neal MD
Other
Eligibility
19 Years to 80 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 21, 2024 · Synced Oct 4, 2026, 10:43 PM EDT
Recruiting Not applicable Interventional

Sleep TO Prevent Post-surgical Pain

NCT06976138
View directory record Official record
Conditions
Knee Osteoarthristis
Interventions
Cognitive-Behavioral Therapy for Insomnia, Bright Light therapy via the Re-Timer®, Negative Ion exposure via IonMi Device, Sleep / Knee Osteoarthritis Education
Behavioral · Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
60 Years and older
Enrollment
252 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
2
States / cities
Baltimore, Maryland • Chestnut Hill, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

Personalized Integrated Chronotherapy for Perinatal Depression

NCT04364646
View directory record Official record
Conditions
Depression, Postpartum Depression, Prenatal Disorder, Circadian Dysregulation, Pregnancy Related, Sleep Disturbance
Interventions
Personalized Integrated Chronotherapy
Behavioral
Lead sponsor
Rhode Island Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
3
States / cities
Glen Oaks, New York • Chapel Hill, North Carolina • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

TWILIGHT Study: Effect of Light Exposure During Acute Rehabilitation on Sleep After TBI

NCT02214212
View directory record Official record
Conditions
Traumatic Brain Injury, TBI, Sleep
Interventions
Bright White Light (BWL), Red Light (RL)
Device
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 70 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 9, 2021 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

Feasibility of Bright Light Therapy on Fatigue, Sleep and Circadian Activity Rhythms in Lung Cancer Survivors

NCT02954809
View directory record Official record
Conditions
Fatigue, Sleep Disturbance, Circadian Dysregulation
Interventions
Morning bright light therapy, Dim light
Device
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

Feasibility Pilot of Bright Light in the Intensive Care Unit

NCT03568045
View directory record Official record
Conditions
Circadian Rhythm Sleep Disorder, Unspecified
Interventions
standard light, 10,000 lux bright light, 4 hours, 10,000 lux bright light, 8 hours
Device
Lead sponsor
Yale University
Other
Eligibility
50 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 17, 2024 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Phase 1 Interventional Results available

Cognitive Behavioral Therapy for the Treatment of Seasonal Affective Disorder (SAD)

NCT00076245
View directory record Official record
Conditions
Seasonal Affective Disorder, Depression
Interventions
Light Therapy, Cognitive behavioral therapy (CBT)
Behavioral
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 25, 2014 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

Wake Therapy in the Treatment of Depression

NCT01431573
View directory record Official record
Conditions
Major Depressive Disorder, Bipolar Disorder
Interventions
Wake Therapy, light box, Lithium
Behavioral · Device · Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 18, 2021 · Synced Oct 4, 2026, 10:43 PM EDT
Completed No phase listed Observational

Bright Light Therapy as Augmentation of Depressive Symptoms on Acute Psychiatric Floor

NCT04385394
View directory record Official record
Conditions
Depression
Interventions
Not listed
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

Bright Start Study

NCT05356130
View directory record Official record
Conditions
Depression
Interventions
Written Educational Material on BLT, Enhanced BLT Encouragement and Adherence Promotion
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years to 69 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 6, 2025 · Synced Oct 4, 2026, 10:43 PM EDT
Recruiting Not applicable Interventional

The Role of Circadian Clock Proteins in Innate and Adaptive Immunity

NCT03482245
View directory record Official record
Conditions
Pneumonia, Necrotizing Soft Tissue Infection, Intraabdominal Infections, Infection Joint
Interventions
Blue Light
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Active, not recruiting Phase 2Phase 3 Interventional

Combination Therapy for Treatment of Sleep Disturbance in Patients With Advanced Cancer

NCT05474846
View directory record Official record
Conditions
Sleep, Fatigue, Anxiety, Cancer, Depression
Interventions
Melatonin, Placebo for Melatonin, Methylphenidate
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional

A Randomized Crossover Trial of Bright Light Therapy in Irritable Bowel Syndrome

NCT06676488
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS), Circadian Misalignment
Interventions
Re-Timer glasses, Placebo Device
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

Bright Light Treatment At Home To Manage Chronic Pain In U.S. Veterans

NCT02373189
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
Bright light
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Oct 4, 2026, 10:43 PM EDT
Recruiting Not applicable Interventional

Improving Sleep in Veterans With the Polytrauma Clinical Triad

NCT06477796
View directory record Official record
Conditions
Traumatic Brain Injury, Post-traumatic Stress Disorder, Chronic Pain
Interventions
Morning Bright Light Therapy, Negative Ion Generator
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 89 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Recruiting Not applicable Interventional

Pupillometry in Delayed Sleep Wake Phase Disorder

NCT06949644
View directory record Official record
Conditions
Delayed Sleep-Wake Phase Disorder
Interventions
Light and Citalopram
Combination Product
Lead sponsor
Northwestern University
Other
Eligibility
16 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Alesis OSA-1 Obstructive Sleep Apnea Treatment

NCT06949969
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
OSA LLLT treatment device, Sham Comparator
Device
Lead sponsor
Photonica USA, LLC
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Miami, Florida • Miramar, Florida
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Active, not recruiting Not applicable Interventional

Light Therapy in End Stage Kidney Disease

NCT06310161
View directory record Official record
Conditions
End Stage Renal Disease
Interventions
Bright light, Dim Light
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Phase 1Phase 2 Interventional

Effects of Rapid-Resisted Exercise and Bright Light Therapy on Ambulatory Adults With Traumatic Brain Injury

NCT01175993
View directory record Official record
Conditions
Adult, Traumatic Brain Injury, fMRI
Interventions
Elliptical exercise
Other
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 44 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Recruiting Not applicable Interventional

Fibromyalgia Sleep A to ZZZ Study

NCT06567886
View directory record Official record
Conditions
Fibromyalgia
Interventions
Light Therapy, Sleep Stabilization
Device · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Recruiting Not applicable Interventional

Mechanisms of Risky Alcohol Use in Young Adults: Linking Sleep to Reward- and Stress-Related Brain Function

NCT05684094
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Sleep extension and advance, Regular sleep duration and timing
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years to 24 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 27, 2026 · Synced Oct 4, 2026, 10:43 PM EDT
Completed Not applicable Interventional Results available

A Wearable Morning Light Treatment for Postpartum Depression

NCT04845347
View directory record Official record
Conditions
Post Partum Depression
Interventions
Bright Light Therapy, Dim Light Therapy
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 4, 2026, 10:43 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 29, 2017 · Synced Oct 4, 2026, 10:43 PM EDT