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Showing 1–24 of 146 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Phototherapy (Bright Light) Clear all
Completed Not applicable Interventional Results available

The "Light for the Brain" Study

NCT02677987
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplantation, Cognitive Impairments, Sleep, Depression, Fatigue, Quality of Life
Interventions
Intervention systematic light exposure, Comparison systematic light exposure
Device
Lead sponsor
Northwestern University
Other
Eligibility
21 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 17, 2022 · Synced Sep 9, 2026, 1:33 PM EDT
Not yet recruiting Phase 1 Interventional

Circadian-Optimized Light Therapy for the Treatment of Patients With Advanced Melanoma Receiving Tumor-Infiltrating Lymphocyte Therapy

NCT07628894
View directory record Official record
Conditions
Advanced Cutaneous Melanoma, Clinical Stage III Cutaneous Melanoma AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, Metastatic Cutaneous Melanoma
Interventions
Biospecimen Collection, Internet-Based Intervention, Medical Device Usage and Evaluation, Phototherapy, Questionnaire Administration, Therapeutic Tumor Infiltrating Lymphocytes
Procedure · Other · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 9, 2026, 1:33 PM 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 16, 2025 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Bright Light Treatment On Elders In a Long Term Care Environment

NCT01042587
View directory record Official record
Conditions
Behavioral Responses to Bright Light Therapy in Elders
Interventions
exposure to bright light, low luminosity red light
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
65 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Elizabethtown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 10, 2010 · Synced Sep 9, 2026, 1:33 PM EDT
Recruiting Not applicable Interventional

Transdiagnostic Sleep and Circadian Intervention + Bright Light in Adolescents With Elevated Depression (TranS-C+BL)

NCT06963463
View directory record Official record
Conditions
Sleep Disturbance, Sleep, Depression, Suicide
Interventions
TranS-C, Sleep Feedback
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
12 Years to 18 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Teen Sleep Health Study

NCT04087603
View directory record Official record
Conditions
Sleep Disorders, Circadian Rhythm, Adolescent Behavior
Interventions
Weekend Morning Bright Light & Early Bedtime
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
14 Years to 17 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sleep Length and Circadian Regulation in Humans

NCT00843843
View directory record Official record
Conditions
Sleep Disorders
Interventions
Bright light box
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 7, 2016 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Targeting Sleep in Kids With Autism Spectrum Disorder

NCT02755051
View directory record Official record
Conditions
Autism Spectrum Disorder, Chronic Insomnia
Interventions
Cognitive Behavioral Therapy
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
6 Years to 12 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 19, 2018 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Teen Sleep and Light Study

NCT04921215
View directory record Official record
Conditions
Chronobiology, Light, Sleep, Circadian Rhythm, Adolescence
Interventions
Morning bright light
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
14 Years to 17 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 1, 2025 · Synced Sep 9, 2026, 1:33 PM EDT
Recruiting Not applicable Interventional

Feasibility of Light Therapy in the Pediatric Intensive Care Unit (ICU)

NCT07384585
View directory record Official record
Conditions
Circadian Dysregulation, Light Exposure, Pediatric Critical Illness
Interventions
Light Therapy
Other
Lead sponsor
Laura Beth Kalvas
Other
Eligibility
4 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Phase 1 Interventional

Safety and Feasibility Study of Methylene Blue Photodynamic Therapy to Sterilize Deep Tissue Abscess Cavities

NCT02240498
View directory record Official record
Conditions
Abscess
Interventions
Methylene Blue, 20% I.V. Fat Emulsion, Insertion of optical fiber, Laser illumination, 5 minutes, Laser illumination, 10 minutes, Laser illumination, 15 minutes, Laser illumination, 20 minutes, Laser illumination, 25 minutes, Laser illumination, 30 minutes, Optical spectroscopy measurement
Drug · Device
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 9, 2026, 1:33 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

In Vivo Liquid Biopsy of Melanoma (Cytophone)

NCT06488365
View directory record Official record
Conditions
Melanoma, Circulating Tumor Cells, Metastatic Melanoma, Diagnosis
Interventions
Cytophone
Device
Lead sponsor
Cytoastra
Industry
Eligibility
18 Years to 80 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Sep 9, 2026, 1:33 PM EDT
Active, not recruiting Not applicable Interventional

Bright Light Therapy for Non-motor Symptoms in Parkinson's Disease

NCT02909192
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Light Therapy Device
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
40 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Sep 9, 2026, 1:33 PM EDT
Recruiting Not applicable Interventional

Bright Light Exposure in Surgical Patients

NCT03822949
View directory record Official record
Conditions
Myocardial Ischemia, Critical Illness, Endothelial Dysfunction
Interventions
Day Light, Placebo light, ICU Intense Light, ICU Placebo light
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 90 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 13, 2025 · Synced Sep 9, 2026, 1:33 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 Apr 30, 2025 · Synced Sep 9, 2026, 1:33 PM EDT
Recruiting Not applicable Interventional

Sleep and Circadian Interventions for College Students at High Risk of Suicide

NCT07346014
View directory record Official record
Conditions
Sleep Disturbance, Sleep, Depression, Suicide
Interventions
Sleep Feedback + Psychoeducation, Transdiagnostic Sleep and Circadian Intervention + Bright Light (TSC+), Triple Chronotherapy (TCT+)
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 25 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 9, 2026, 1:33 PM EDT
Recruiting Not applicable Interventional

Bright Light Therapy for OSA

NCT05917119
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
BLT, s-BLT
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Litebook EDGE™ Phototherapy on Academic Performance and Brain Activity

NCT05383690
View directory record Official record
Conditions
Sleepiness, Daytime
Interventions
LED bright light treatment device
Device
Lead sponsor
Mclean Hospital
Other
Eligibility
13 Years to 18 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 19, 2022 · Synced Sep 9, 2026, 1:33 PM EDT
Withdrawn Not applicable Interventional

Prophylactic Treatment of Sleep/Fatigue Before and During Chemotherapy

NCT01542983
View directory record Official record
Conditions
Stage, Breast Cancer
Interventions
Brief behavioral treatment for insomnia and bright light, treatment as usual
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 85 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jan 23, 2019 · Synced Sep 9, 2026, 1:33 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 6, 2026 · Synced Sep 9, 2026, 1:33 PM EDT
Completed Phase 1 Interventional

Nutrition, Neuromuscular Electrical Stimulation (NMES) and Secondary Progressive Multiple Sclerosis (SPMS)

NCT01381354
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Progressive exercise, Neuromuscular electrical stimulation delivered using the electrical therapy device EMPI 300 PV, Modified paleolithic diet, Omega 3 fatty acids, Full Spectrum vitamin, Essential - hydroxytyrosol, Maltodextrin fiber supplement, Mineral boost (magnesium), Niacinamide, Methyl B12, Taurine, creatine, thiamine, riboflavin, N acetylcysteine, alpha lipoic acid, L acetyl carnitine, methyl folate, coenzyme Q, meditation, self massage, learning, Coconut oil
Other · Device · Dietary Supplement + 1 more
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 25, 2018 · Synced Sep 9, 2026, 1:33 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

The Use of Light Therapy for Managing Sleep Disturbances in Patients With Advanced Cancer

NCT01193530
View directory record Official record
Conditions
Advanced Cancers
Interventions
Bright Light Therapy, Dim Red Light Therapy, Questionnaires, Study Diaries, Red Light Litebook, Bright Light Litebook
Other · Behavioral · Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 25, 2019 · Synced Sep 9, 2026, 1:33 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Noradrenergic Dysregulation, Sleep and Cognition in Older Adults With Insomnia

NCT06694441
View directory record Official record
Conditions
Insomnia
Interventions
Light Exposure, Placebo
Other
Lead sponsor
Northwestern University
Other
Eligibility
55 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Sep 9, 2026, 1:33 PM EDT
Terminated Not applicable Interventional Results available

Napping, Sleep, Cognitive Decline and Risk of Alzheimer's Disease

NCT03256539
View directory record Official record
Conditions
Sleep, Alzheimer Disease, Cognitive Impairment, Aging, CBT
Interventions
Sleep intervention, Placebo intervention
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
65 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Sep 9, 2026, 1:33 PM EDT