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Showing 1–24 of 193 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Blue Light Illumination Clear all
Not yet recruiting Not applicable Interventional

Circadian Light Exposure Adjustment for Restfulness

NCT07391852
View directory record Official record
Conditions
Sleep Onset Latency
Interventions
Amber Tinted Glasses, Clear Glasses, Smart Lightbulbs
Device
Lead sponsor
University of Arizona
Other
Eligibility
60 Months to 83 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Sep 6, 2026, 1:54 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 6, 2026 · Synced Sep 6, 2026, 1:54 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Red Light Photobiomodulation and Topical Disinfectants

NCT05797818
View directory record Official record
Conditions
Healthcare Associated Infection, Nosocomial Infection, Surgical Site Infection
Interventions
Methylene Blue Only, Chlorhexidine Gluconate Only, Methylene Blue + Chlorhexidine Gluconate, Light Only
Device
Lead sponsor
Ondine Biomedical Inc.
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Bothell, Washington
Source: ClinicalTrials.gov public record
Updated Apr 3, 2023 · Synced Sep 6, 2026, 1:54 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Caries Detection With Two Different Caries Detecting Devices

NCT06152081
View directory record Official record
Conditions
Caries,Dental
Interventions
LumiCare rinse, QLF Inspektor Pro Imaging
Device
Lead sponsor
Tufts University
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Sep 6, 2026, 1:54 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 6, 2026, 1:54 PM EDT
Completed Phase 2 Interventional Results available

Research Study of Treatment for Winter Depression With Different Colors of Light

NCT00269633
View directory record Official record
Conditions
Seasonal Affective Disorder
Interventions
Blue Light Box 467 nm, Red Light Box 657 nm
Device
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 27, 2016 · Synced Sep 6, 2026, 1:54 PM EDT
Recruiting Not applicable Interventional

Phase 2 - Rhythmic Light Therapy for Alzheimer's Disease Patients

NCT05016219
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Circadian-Effective Light, Rhythmic Light, Placebo Light, Placebo Rhythmic Light
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
55 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
Menands, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Sep 6, 2026, 1:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Investigating the Effects of Evening Light Exposure on Melatonin Suppression, Alertness and Nocturnal Sleep

NCT01586039
View directory record Official record
Conditions
Non-visual Photoreception
Interventions
Visible light
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 13, 2021 · Synced Sep 6, 2026, 1:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Use of Microneedles in Photodynamic Therapy

NCT01812837
View directory record Official record
Conditions
Actinic Keratosis
Interventions
Microneedle, Aminolevulinic Acid, Blue light
Device · Drug · Radiation
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Sep 6, 2026, 1:54 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Temperature Rise Caused by Short or Long-wavelengths

NCT06418958
View directory record Official record
Conditions
Post-operative Pain
Interventions
Red Light, Blue Light
Device
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 35 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 18, 2025 · Synced Sep 6, 2026, 1:54 PM EDT
Recruiting Phase 2 Interventional

Photodynamic Diagnosis of Upper Tract Urothelial Carcinoma Using Fluorescence Endoscopy and Oral 5-ALA

NCT06948552
View directory record Official record
Conditions
Upper Tract Urothelial Carcinoma
Interventions
5-Aminolevulinic acid Hydrochloride (Gliolan®)
Drug
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 6, 2026, 1:54 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 6, 2026, 1:54 PM EDT
Completed Not applicable Interventional Results available

Cognitive Behavioral Therapy and Light Therapy

NCT05337943
View directory record Official record
Conditions
Pulmonary Hypertension, Insomnia, Fatigue
Interventions
CBT-I, Bright Light Therapy
Behavioral · Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 26, 2025 · Synced Sep 6, 2026, 1:54 PM EDT
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, 1:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Seeing the World Through Assorted Glasses

NCT02483559
View directory record Official record
Conditions
Sleep
Interventions
Amber Lenses, Placebo Lenses
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 7, 2017 · Synced Sep 6, 2026, 1:54 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 6, 2026, 1:54 PM EDT
Completed Not applicable Interventional Results available

Lighting Intervention for Cancer-related Fatigue

NCT04827446
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Sep 6, 2026, 1:54 PM EDT
Not yet recruiting Phase 2 Interventional Accepts healthy volunteers

PDT vs Peels for Treatment of Actinic Keratoses

NCT04429308
View directory record Official record
Conditions
Actinic Keratoses
Interventions
Photodynamic Therapy, Chemical Peels
Procedure · Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 6, 2026, 1:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of the Use of Low Level Laser Therapy to Reduce Acne

NCT01276535
View directory record Official record
Conditions
Acne
Interventions
Erchonia MLS + Erchonia THL
Device
Lead sponsor
Erchonia Corporation
Industry
Eligibility
18 Years to 40 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2015 · Synced Sep 6, 2026, 1:54 PM EDT
Completed Phase 3 Interventional

Light-Activated Antimicrobial Therapy to Prevent Surgical Site Infections

NCT06702878
View directory record Official record
Conditions
Surgical Site Infections, Surgical Wound Infection, Infections, Anti-Infective Agents
Interventions
nasal antimicrobial photodisinfection therapy
Combination Product
Lead sponsor
Ondine Biomedical Inc.
Industry
Eligibility
18 Years and older
Enrollment
4,787 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
14
States / cities
Englewood, Colorado • Brandon, Florida • Largo, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 6, 2026, 1:54 PM EDT
Completed Not applicable Interventional Results available

30-Minute Light Exposure for the Treatment of Seasonal Affective Disorder

NCT01462305
View directory record Official record
Conditions
Seasonal Affective Disorder
Interventions
goLITE, Control
Device
Lead sponsor
Philips Respironics
Industry
Eligibility
21 Years to 64 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
4
States / cities
Belmont, Massachusetts • Boston, Massachusetts • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Sep 6, 2026, 1:54 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 20, 2026 · Synced Sep 6, 2026, 1:54 PM EDT
Completed Not applicable Interventional Results available

Detection of SLN in Patients With Endometrial Cancer Undergoing Robotic Assisted Staging: Comparison of ISB and ICG

NCT02068820
View directory record Official record
Conditions
Endometrial Cancer
Interventions
ISB dye and standard white light imaging, ICG dye and FireFly fluorescence imaging
Device
Lead sponsor
AdventHealth
Other
Eligibility
18 Years to 85 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced Sep 6, 2026, 1:54 PM EDT
Withdrawn Not applicable Interventional

Light Therapy in Cardiopulmonary Bypass Surgery

NCT02928887
View directory record Official record
Conditions
Acute Kidney Injury, Inflammation
Interventions
Blue light
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 19, 2022 · Synced Sep 6, 2026, 1:54 PM EDT