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Showing 1–24 of 65 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Light Exposure 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 5, 2026, 9:03 AM EDT
Not listed Not applicable Interventional

Light Exposure on Pain in Hypermobile Ehlers-Danlos Syndrome

NCT05561270
View directory record Official record
Conditions
Ehlers-Danlos Syndrome, Pain, Chronic
Interventions
White LED light, Green LED light
Device
Lead sponsor
New York Institute of Technology
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Old Westbury, New York
Source: ClinicalTrials.gov public record
Updated May 5, 2024 · Synced Sep 5, 2026, 9:03 AM EDT
Completed Not applicable Interventional Results available

Efficacy Study of Light Therapy as an Adjunctive Treatment for Parkinson's Disease

NCT02175472
View directory record Official record
Conditions
Parkinson Disease
Interventions
Spectramax light therapy device, Control light device
Device
Lead sponsor
PhotoPharmics, Inc.
Industry
Eligibility
45 Years and older
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
2
States / cities
Boston, Massachusetts • Orem, Utah
Source: ClinicalTrials.gov public record
Updated Oct 22, 2018 · Synced Sep 5, 2026, 9:03 AM 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 5, 2026, 9:03 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Potential of Tazarotene Foam to Cause a Reaction When Applied to the Skin and Exposed to Light on Healthy Volunteers

NCT01115322
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Tazarotene Foam without irradiation, Tazarotene Foam with UVA and UVB irradiation, Tazarotene Foam with UVA, UVB, and visible light, Vehicle Foam without irradiation, Vehicle Foam with UVA and UVB irradiation, Vehicle Foam with UVA and UVB and visible light irradiation, No Treatment without irradiation, No Treatment with UVA and UVB irradiation, No Treatment with UVA and UVB and visible light irradiation
Drug
Lead sponsor
Stiefel, a GSK Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 19, 2017 · Synced Sep 5, 2026, 9:03 AM EDT
Completed Not applicable Interventional

HealthSmart: Promoting Healthy Lifestyles for Young Adult Cancer Survivors Using Educational Videos

NCT03340532
View directory record Official record
Conditions
Environmental Exposure to Ultraviolet Light
Interventions
THE INFORMATION + APPEARANCE VIDEO, Information SunSmart video, Sleep hygiene video
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years to 35 Years
Enrollment
266 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Sep 5, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Role of Photic and Non-photic Time Cues in Resetting Circadian Rhythms

NCT05276739
View directory record Official record
Conditions
Light Exposure, Meal Timing
Interventions
Bright Light, Time-restricted eating, Dim light, 12-h meal window
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 5, 2026, 9:03 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Violet Device Dosed Ultra Violet-C Light (UV-C) Exposure on Healthy Hand Skin

NCT05313555
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Ultraviolet Light (UV-B), Ultraviolet lights (UV-C) - 1 cycle, Ultraviolet lights (UV-C) - 10 cycles, Ultraviolet lights (UV-C) - 15 cycles, Ultraviolet lights (UV-C) - 25 cycles
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 55 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 5, 2026, 9:03 AM 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 5, 2026, 9:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Gamma Frequency Stimulation in Individuals With Down Syndrome

NCT05196984
View directory record Official record
Conditions
Down Syndrome
Interventions
GENUS device (Active Settings), GENUS device (Sham Settings)
Device
Lead sponsor
Massachusetts Institute of Technology
Other
Eligibility
25 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 5, 2026, 9:03 AM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

The Impact of Light Exposure on Cognitive Function in Classrooms

NCT06325150
View directory record Official record
Conditions
Healthy
Interventions
Light emitting glasses
Device
Lead sponsor
Michigan State University
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Sep 5, 2026, 9:03 AM 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 5, 2026, 9:03 AM EDT
Recruiting Phase 4 Interventional

Light Flashes to Treat Delayed Sleep Phase Disorder (DSPD)

NCT01406691
View directory record Official record
Conditions
Delayed Sleep Phase Disorder
Interventions
Flashes
Device
Lead sponsor
Stanford University
Other
Eligibility
15 Years to 19 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2028
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Sep 5, 2026, 9:03 AM EDT
Withdrawn Phase 2 Interventional

Celecoxib in Preventing Skin Cancer

NCT00025051
View directory record Official record
Conditions
Non-melanomatous Skin Cancer
Interventions
celecoxib, anti-cytokine therapy, antiangiogenesis therapy, biological therapy, cancer prevention intervention, chemoprevention of cancer, growth factor antagonist therapy
Drug · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
20 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 21, 2013 · Synced Sep 5, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Cutaneous Effects of Deep Ultraviolet A +/- High-Energy Visible Blue Light Exposure

NCT06654102
View directory record Official record
Conditions
Skin Pigmentation, Photobiology
Interventions
Deep UVA Irradiation, Deep UVA+HEV Blue Light Irradiation
Other
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
18 Years to 60 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Union City, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 5, 2026, 9:03 AM EDT
Not yet recruiting Not applicable Interventional

Therapeutic Induction of Dermal Remodeling in Veterans to Prevent Actinic Neoplasia Caused by Chronic Environmental Exposure to Ultraviolet Radiation

NCT07648407
View directory record Official record
Conditions
Nonmelanoma Skin Cancer, Actinic Keratosis
Interventions
Microneedling, Trichloroacetic acid peel
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
2
States / cities
Indianapolis, Indiana • Dayton, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 5, 2026, 9:03 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Green Light Exposure in Healthy Volunteers Exposure in Normal Human Volunteers

NCT05295225
View directory record Official record
Conditions
Chronic Pain
Interventions
Green Light Emitting Diode, White Light Emitting Diode
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced Sep 5, 2026, 9:03 AM EDT
Recruiting Phase 2 Interventional

The Effect of Topical Imipramine on Photodynamic Therapy-Mediated Immunosuppression on Forearms or Face on US Veterans

NCT06778434
View directory record Official record
Conditions
Actinic Keratosis, Imipramine, Photodynamic Therapy
Interventions
Imipramine, Control Vehicle
Drug · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Dayton, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Sep 5, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Treating Cancer-Related Fatigue Through Systematic Light Exposure (Light for Fatigue Study)

NCT03119363
View directory record Official record
Conditions
Multiple Myeloma, Fatigue
Interventions
AYO light glasses (Experimental), AYO light glasses (Comparator)
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2022
U.S. locations
3
States / cities
Hackensack, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 15, 2022 · Synced Sep 5, 2026, 9:03 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Impact of Germicidal Light

NCT03886337
View directory record Official record
Conditions
Bacterial Transmission, S.Aureus Transmission, Operating Room Exposure to S. Aureus, 90-day Postoperative Surgical Site Infections, Superficial and Deep
Interventions
Germicidal lighting
Device
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 120 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Sep 5, 2026, 9:03 AM EDT
Active, not recruiting Phase 2 Interventional

Daratumumab, Pomalidomide, and Dexamethasone (DPd) in Relapsed/Refractory Light Chain Amyloidosis Patients Previously Exposed to Daratumumab

NCT04270175
View directory record Official record
Conditions
Amyloid, AL Amyloidosis, Refractory AL Amyloidosis
Interventions
Daratumumab SC, Pomalidomide, Dexamethasone
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
4
States / cities
Palo Alto, California • Boston, Massachusetts • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 5, 2026, 9:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Nighttime Synchrony of Your Nutrition and Circadian Health

NCT07329283
View directory record Official record
Conditions
Sleep, Metabolism Changes, Circadian Rhythm, Lifestyle Factors, Sleep Hygiene, Sleep Hygiene, Inadequate, Sleep Deprivation, Insufficient Sleep, Circadian Misalignment, Circadian Dysregulation, Light Exposure
Interventions
Central Clock Misalignment, Peripheral Misalignment
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 35 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2031
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Sep 5, 2026, 9:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Combined Blue and Red Home-Based Light Therapy on Sleep in Adults With Self-Reported Sleep Difficulties

NCT07465250
View directory record Official record
Conditions
Sleep
Interventions
LED portable light therapy bulb
Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 5, 2026, 9:03 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 5, 2026, 9:03 AM EDT