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Showing 1–24 of 122 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Blue Light Treatment Clear all
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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 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, 2:06 PM EDT
Completed Phase 4 Interventional Results available

Clinical and Microbiologic Outcomes of aPDT in the Non-surgical Treatment of Implant Inflammation

NCT04187053
View directory record Official record
Conditions
DENT IMPLANTS, LASER
Interventions
Conventional mechanical therapy, Saline, Methylene Blue, Light emitting laser, Non-light emitting laser
Procedure · Drug · Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 20, 2024 · Synced Sep 6, 2026, 2:06 PM EDT
Completed Phase 1Phase 2 Interventional

DUSA: Cyclic PDT for the Prevention of AK & NMSC in Solid Organ Transplant Recipients

NCT03110159
View directory record Official record
Conditions
Skin Cancer, Non-melanoma Skin Cancer, Sun Damaged Skin, Actinic Keratosis
Interventions
Levulan® Kerastick®, BLU-U Blue Light Photodynamic Therapy
Drug
Lead sponsor
Medical Dermatology Specialists
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 14, 2024 · Synced Sep 6, 2026, 2:06 PM EDT
Not yet recruiting Early Phase 1 Interventional

Topical Methylene Blue-Photodynamic Therapy (MB-PDT) for Burn Wound Infection

NCT07494773
View directory record Official record
Conditions
Burns, Wound Infection
Interventions
Methylene Blue, Blue Light Illumination
Drug · Device
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Sep 6, 2026, 2:06 PM EDT
Completed Phase 1 Interventional

Bright Light on Fatigue in Women Being Treated for Breast Cancer

NCT02658708
View directory record Official record
Conditions
Breast Neoplasms, Breast Cancer, Cancer of Breast, Cancer of the Breast
Interventions
Bright blue-green light using light visor cap, Dim red light using light visor cap, European Organization for Research and Treatment of Cancer-Quality of Life Questionnaire, Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, Patient-Reported Outcomes Measurement Information System (PROMIS)-Sleep Disturbance, Patient-Reported Outcomes Measurement Information System (PROMIS)-Cancer-Fatigue, Digital foot candle datalogging light meter (Extech Instrument, Model SDL400), Polysomnography (Easy Ambulatory 2 Cadwell, Kennewick, WA), Horne-Ostberg Morningness-Eveningness Questionnaire, Daily Fatigue and Sleep Log
Other · Diagnostic Test
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years and older · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 24, 2017 · Synced Sep 6, 2026, 2:06 PM EDT
Recruiting Not applicable Interventional

Vitamin D Effects on Immune Microenvironment of Nonmelanoma Skin Cancer After Photodynamic Therapy (PDT)

NCT07241585
View directory record Official record
Conditions
Nonmelanoma Skin Cancer, Basal Cell Carcinoma, Squamous Cell Carcinoma
Interventions
Vitamin D (VitD), Placebo, Photodynamic therapy (PDT), Mohs surgery or electrodessication & curettage (ED&C) (standard of care)
Dietary Supplement · Other · Procedure
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 6, 2026, 2:06 PM EDT
Completed Not applicable Interventional Results available

Opioid Sparing Potential of Light-Induced Analgesia

NCT03890419
View directory record Official record
Conditions
Pain
Interventions
Green light, Clear light, Blue Light
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 12, 2021 · Synced Sep 6, 2026, 2:06 PM EDT
Not listed Phase 2 Interventional

Photodynamic Therapy Using Aminolevulinic Acid in Treating Patients With Skin Cancer

NCT00747903
View directory record Official record
Conditions
Non-melanomatous Skin Cancer
Interventions
aminolevulinic acid hydrochloride
Drug
Lead sponsor
Laser and Skin Surgery Center of New York
Other
Eligibility
30 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 9, 2014 · Synced Sep 6, 2026, 2:06 PM EDT