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Showing 1–17 of 17 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Brightness Clear all
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 5, 2026, 12:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Computer Screen Properties Study

NCT05042960
View directory record Official record
Conditions
Dry Eye Syndromes
Interventions
Brightness
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Sep 5, 2026, 12:37 PM EDT
Terminated Not applicable Interventional Results available

Feasibility of EnChroma Use in the Emergency Department Setting

NCT04021914
View directory record Official record
Conditions
Color Vision Defects
Interventions
EnChroma glasses
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 17, 2023 · Synced Sep 5, 2026, 12:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Light-deprivation Utilized to Mitigate Amblyopia

NCT02685423
View directory record Official record
Conditions
Amblyopia
Interventions
Binocular deprivation 10 days, Vision training
Behavioral
Lead sponsor
State University of New York College of Optometry
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 28, 2019 · Synced Sep 5, 2026, 12:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Bright Light as a Countermeasure for Circadian Desynchrony

NCT01119365
View directory record Official record
Conditions
Healthy
Interventions
Bright light
Other
Lead sponsor
VA Palo Alto Health Care System
Federal
Eligibility
18 Years to 35 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2023
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Sep 5, 2026, 12:37 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Objectively Diagnose and Monitor Treatment of Light Sensitivity

NCT03694626
View directory record Official record
Conditions
Photophobia, Traumatic Brain Injury, Migraine
Interventions
Pupillography, Ocular Coherence Tomography (OCT), Wrist-watch sensor device, Videography, Electrophysiology
Device
Lead sponsor
Randy Kardon
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2028
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Sep 5, 2026, 12:37 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

SCREENS: Sleep, Circadian Rhythms, and Electronics in the EveNing Study

NCT06192745
View directory record Official record
Conditions
Sleep, Circadian Rhythm, Executive Function, Emotion Regulation
Interventions
no screen control with dim light and calming activities, unfiltered Bright tablet screen, Filtered dim tablet screen, Exciting content, Calming Content
Behavioral
Lead sponsor
Baylor College of Medicine
Other
Eligibility
8 Years to 11 Years
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 5, 2026, 12:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating the Potentials of Biodynamic Lighting for Home Office Workers

NCT05481424
View directory record Official record
Conditions
Cognitive Performance, Sleep, Alertness
Interventions
Biodynamic, Active Placebo
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Sep 5, 2026, 12:37 PM EDT
Completed Not applicable Interventional

Lighting for Older Adults With Dementia

NCT05697757
View directory record Official record
Conditions
Sleep, Mood
Interventions
Dynamic Lighting, Placebo Lighting
Other
Lead sponsor
Arizona State University
Other
Eligibility
50 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
3
States / cities
Phoenix, Arizona • Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 30, 2024 · Synced Sep 5, 2026, 12:37 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Biomarkers for Peripheral Circadian Clocks in Humans

NCT06296823
View directory record Official record
Conditions
Circadian Rhythms
Interventions
Simulated jetlag protocol
Behavioral
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
17 Years to 35 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 5, 2026, 12:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Determining How Indoor Lighting Affects the Brain Health of Older Adults

NCT05978934
View directory record Official record
Conditions
Sleep, Physical Activity, Cognitive Function, Social Isolation
Interventions
Static Lighting Condition (L1), Dynamic Lighting Condition (L2), Dynamic Lighting Condition (L3)
Behavioral
Lead sponsor
Well Living Lab, Inc.
Industry
Eligibility
60 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Sep 5, 2026, 12:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Kubota Glass Parameter Refinement Study

NCT06085430
View directory record Official record
Conditions
Myopia, Myopia, Progressive, Vision Disorders
Interventions
Kubota Glass
Device
Lead sponsor
Kubota Vision Inc.
Industry
Eligibility
8 Years to 24 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Sep 5, 2026, 12:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Earlier Breast Cancer Detection Using Automated Whole Breast Ultrasound With Mammography, Including Cost Comparisons

NCT00649337
View directory record Official record
Conditions
Breast Neoplasms, Ultrasonography
Interventions
Comparison of Automated Whole Breast Ultrasound Screening with Blinded Screening Mammography
Procedure
Lead sponsor
SonoCine, Inc.
Industry
Eligibility
35 Years to 90 Years · Female only
Enrollment
4,650 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2010
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Mar 31, 2008 · Synced Sep 5, 2026, 12:37 PM EDT
Enrolling by invitation Phase 2 Interventional

Bright Light Therapy for Depressed Geriatric Inpatients

NCT07002554
View directory record Official record
Conditions
Unipolar Depression
Interventions
Bright light therapy, dim red light
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
60 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Sep 5, 2026, 12:37 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Circadian OS Technology on Melatonin Suppression

NCT07095270
View directory record Official record
Conditions
Circadian Disruption
Interventions
Circadian OS software
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
30 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 5, 2026, 12:37 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Assessing Environmental Factors in Healthcare Facilities in Order to Improve the Experience of Patients, Staff, and the Quality of Imaging Procedures

NCT03456895
View directory record Official record
Conditions
Healthcare Facility Environment - Imaging
Interventions
Light perception, Sound perception, Smell perception, Vibration perception, Voice activation
Other
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Sep 5, 2026, 12:37 PM EDT
Recruiting Not applicable Interventional

Light Exposure, Migraine Outcomes, and Sleep Quality

NCT07476053
View directory record Official record
Conditions
Migraine Headache, Sleep, Photophobia
Interventions
Ambient Lighting Condition
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Sep 5, 2026, 12:37 PM EDT