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Showing 1–23 of 23 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Green Light Exposure Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Vending Labeling Sales and Intercepts Study

NCT06260176
View directory record Official record
Conditions
Food Preferences, Obesity, Weight Gain
Interventions
exposure to healthy labels only, exposure to healthiness information, exposure to physical activity equivalents, exposure to sweetened beverage tax messaging
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
1,065 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 14, 2024 · Synced Sep 12, 2026, 2:00 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Bright Light on Co-occurring Cancer-related Symptoms in Breast Cancer Survivors

NCT03304587
View directory record Official record
Conditions
Breast Cancer
Interventions
Polysomnography (PSG), Rectal thermistor 400 Series, Bright blue-green light, Dim red light, Digital foot candle datalogging light meter, Patient-Reported Outcomes Measurement Information System (PROMIS)-Cancer-Fatigue, Patient-Reported Outcomes Measurement Information System (PROMIS)-Sleep Disturbance, Patient-Reported Outcomes Measurement Information System (PROMIS)-Depression, Patient-Reported Outcomes Measurement Information System (PROMIS)-Physical Function, Pittsburgh Sleep Quality Index (PSQI), Center for Epidemiological Studies - Depression, Montreal Cognitive Assessment (MoCA), European Organization for Research and Treatment of Cancer-Quality of Life Questionnaire (EORTC QLQ-C30), Daily Log
Diagnostic Test · Other
Lead sponsor
Michigan State University
Other
Eligibility
21 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced Sep 12, 2026, 2:00 AM EDT
Active, not recruiting Not applicable Interventional Results available

The Effect of Light Therapy on Chronic Pain

NCT03677206
View directory record Official record
Conditions
Chronic Pain
Interventions
Exposure to green LED light, Exposure to white LED light
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 80 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Sep 12, 2026, 2:00 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Light Exposure Tracker Designed to Improve Circadian Rhythms - Aim 1

NCT06356337
View directory record Official record
Conditions
Alzheimer's Disease, Mild Cognitive Impairment
Interventions
Light goggles, Daily reminder test message
Device · Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
55 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Menands, New York
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Sep 12, 2026, 2:00 AM EDT
Completed Not applicable Interventional

Green Light Therapy As a Non-Pharmacologic Intervention to Decrease Anxiety in Pregnant Women With Opioid Use Disorder

NCT04776616
View directory record Official record
Conditions
Anxiety
Interventions
Exposure to white LED light, Exposure to green LED light
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 12, 2026, 2:00 AM EDT
Completed Early Phase 1 Interventional

Novel Application of Indocyanine Green as a Biomarker to Identify Tissue Necrosis in Mastectomy Patients

NCT04145323
View directory record Official record
Conditions
Breast Cancer, Necrosis
Interventions
ICG microangiography
Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 17, 2020 · Synced Sep 12, 2026, 2:00 AM EDT
Recruiting Not applicable Interventional

Green Light for Post-Operative Wellness

NCT07218289
View directory record Official record
Conditions
Surgery
Interventions
Bright Green Light Therapy, Dim White Light Therapy
Device
Lead sponsor
Rebecca E Kotcher, MD
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 12, 2026, 2:00 AM EDT
Active, not recruiting Not applicable Interventional

The Effect of Light Therapy on Post-Surgical Pain

NCT03674697
View directory record Official record
Conditions
Acute Pain, Arthropathy of Knee
Interventions
Green LED light therapy, White LED light therapy
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Sep 12, 2026, 2:00 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Green Tea and Ultraviolet Light-induced Skin Damage

NCT00134381
View directory record Official record
Conditions
Healthy
Interventions
Green Tea, Placebo
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 65 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2012
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 5, 2017 · Synced Sep 12, 2026, 2:00 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 12, 2026, 2:00 AM 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 12, 2026, 2:00 AM 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 12, 2026, 2:00 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 12, 2026, 2:00 AM 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 26, 2026 · Synced Sep 12, 2026, 2:00 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Esthetics of Dental Composite and Adhesive System

NCT03716349
View directory record Official record
Conditions
Cavities of Teeth
Interventions
Pulp vitality testing, Photos, local and/or topical anesthetic, rubber dam, tooth surface cleaned, enamel margins, Adhesive Systems, cavity preparation, Shade selection using Easy Shade 5, Light Curing, Contoured and polished, Consent, Health Questionnaire, xray, Release of medical information signed, Oral Exam, Teeth Assessment, Clinical Assessment, Tokuyama Universal Bond, ScotchBond
Diagnostic Test · Other · Drug + 3 more
Lead sponsor
Erica Teixeira
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 12, 2026, 2:00 AM 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 12, 2026, 2:00 AM EDT
Not listed Not applicable Interventional

Effects of Green Light Exposure on Epileptic Spikes in Patients With Refractory Epilepsy

NCT03857074
View directory record Official record
Conditions
Epilepsy, Epilepsy Intractable
Interventions
Green Light Exposure
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
6 Months to 30 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 12, 2026, 2:00 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Light on Melatonin and Contractions in Pregnant Women

NCT01863446
View directory record Official record
Conditions
Pregnancy
Interventions
Lighting1, Lighting2
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 26, 2024 · Synced Sep 12, 2026, 2:00 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Sex and Age on Non-visual Light Input That Affects Sleep and Circadian Rhythms

NCT05829044
View directory record Official record
Conditions
Normal Physiology
Interventions
Pupillometry, Light box exposure
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 12, 2026, 2:00 AM EDT
Not yet recruiting Not applicable Interventional

Elucidating the Central Mechanisms of Action for Green Light Therapy in Managing Chronic Pain

NCT05569486
View directory record Official record
Conditions
Fibromyalgia
Interventions
Green Light
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Sep 12, 2026, 2:00 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Online Food and Beverage Labels and Vending Machine Selections

NCT05432271
View directory record Official record
Conditions
Food Preferences, Obesity, Weight Gain
Interventions
Exposure to calorie information, Exposure to healthy labels only, Exposure to healthiness information, Exposure to physical activity equivalents, Exposure to "high in" nutrient warning labels
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
8,145 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Sep 12, 2026, 2:00 AM 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 12, 2026, 2:00 AM 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 12, 2026, 2:00 AM EDT