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ClinicalTrials.gov public records Last synced Oct 22, 2026, 10:52 AM EDT

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Showing 1–24 of 131 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Morning Light Therapy Clear all
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 10, 2025 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

A Wearable Morning Light Treatment for Postpartum Depression

NCT04845347
View directory record Official record
Conditions
Post Partum Depression
Interventions
Bright Light Therapy, Dim Light Therapy
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Understanding Physiology During Float-REST and the Consequential Effects on Subjective and Objective Recovery

NCT04415970
View directory record Official record
Conditions
Sleep Quality
Interventions
Flotation therapy sensory deprivation tank, Sleep Pod
Other
Lead sponsor
West Virginia University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Oct 22, 2026, 10:52 AM EDT
Recruiting Not applicable Interventional

A Randomized Crossover Trial of Bright Light Therapy in Crohn's Disease on Intestinal Barrier Homeostasis

NCT05579392
View directory record Official record
Conditions
Inflammatory Bowel Disease
Interventions
Bright Light Therapy, Placebo Retimer Device
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
2
States / cities
Chicago, Illinois • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Bright Light Therapy in Mild Traumatic Brain Injury

NCT01747811
View directory record Official record
Conditions
Concussion, Mild, Post-Concussion Symptoms, Sleep Problems
Interventions
wavelength-1 bright light, wavelength-2 bright light
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 1, 2017 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

The SleepWell Study - Chronotherapeutic Intervention to Improve Sleep Following ACS

NCT05299723
View directory record Official record
Conditions
Sleep Disturbance, Insomnia, Acute Coronary Syndrome
Interventions
BLT Intervention, BLB Intervention, Sleep Hygiene Education
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced Oct 22, 2026, 10:52 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Pathophysiology of Circadian Rhythm Delayed Sleep Wake Phase Disorder

NCT06471374
View directory record Official record
Conditions
Delayed Sleep Phase Syndrome, Delayed Sleep Phase
Interventions
Circadian rhythm assessment, Light sensitivity assessment
Behavioral
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
16 Years to 40 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
2
States / cities
Boulder, Colorado • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Phase 2Phase 3 Interventional

Evaluating the Efficacy and Safety of Oral Ranirestat (40 and 80 mg) in Mild to Moderate Diabetic Sensorimotor Polyneuropathy

NCT00927914
View directory record Official record
Conditions
Mild to Moderate Diabetic Sensorimotor Polyneuropathy
Interventions
Ranirestat, Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 21, 2019 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Phase 2 Interventional Results available

Safety/Efficacy of Everolimus in Adults With Advanced Pancreatic Neuroendocrine Cancer Not Responsive to Chemotherapy

NCT00363051
View directory record Official record
Conditions
Islet Cell Carcinoma, Neuroendocrine Carcinoma, Neuroendocrine Tumor, Pancreatic Neoplasms
Interventions
Everolimus 10 mg, Octreotide Depot
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
20
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 15 more
Source: ClinicalTrials.gov public record
Updated May 10, 2013 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

Programmed Environmental Illumination (PEI) of Hospital Rooms to Prevent/Reduce Cancer-Related Fatigue

NCT03198754
View directory record Official record
Conditions
Cancer-related Problem/Condition, Depression, Circadian Rhythm Disorders
Interventions
PEI Experimental Light, Comparison Light
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
21 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

Are Bright Lights and Regulated Sleep Effective Treatment for Depression?

NCT03010488
View directory record Official record
Conditions
Sleep Phase Rhythm Disturbance, Sleep Deprivation
Interventions
Morning Light Therapy, Assigned Sleep Times, Goggles
Behavioral · Device
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Delayed Sleep Timing in Teens Study

NCT03806296
View directory record Official record
Conditions
Delayed Sleep Phase
Interventions
Increase morning bright light, Decrease evening blue light, Sleep scheduling, Monitor sleep, mood, and substance use
Other · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
16 Years to 19 Years
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 22, 2026, 10:52 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 14, 2025 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

Improving the Sleep and Circadian Rhythms of Mechanically Ventilated Patients

NCT01284140
View directory record Official record
Conditions
Critical Illness, Sleep Deprivation, Respiratory Failure, Sleep Disorders, Circadian Rhythm
Interventions
Sleep and circadian rhythm promotion, Usual care
Behavioral
Lead sponsor
Brian Gehlbach
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
2
States / cities
Chicago, Illinois • Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 7, 2018 · Synced Oct 22, 2026, 10:52 AM EDT
Enrolling by invitation Not applicable Interventional

A Study Of Auricular Transcutaneous Vagus Nerve Stimulation In Chronic Dizziness

NCT07420803
View directory record Official record
Conditions
Chronic Dizziness, Persistent Postural Perceptual Dizziness
Interventions
Sham Device, Auricular transcutaneous vagus nerve stimulation
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 19, 2026 · Synced Oct 22, 2026, 10:52 AM EDT
Recruiting Not applicable Interventional

The Ambient Light Multiple Myeloma Study

NCT05737732
View directory record Official record
Conditions
Multiple Myeloma
Interventions
Circadian Effective Lighting, Circadian Ineffective Lightning (CIL)
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
21 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Light Timing Study

NCT04753190
View directory record Official record
Conditions
Chronobiology, Light, Sleep, Circadian Rhythm, Adolescence
Interventions
Baseline Sleep Satiation and Phase Stabilization, Gradually Shifted Sleep
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 20 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 22, 2026, 10:52 AM 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 11, 2026 · Synced Oct 22, 2026, 10:52 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 30, 2019 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

To Investigate the Effect of Arabinogalactan on the Gut Microbiome in Adults

NCT04351841
View directory record Official record
Conditions
Gut Microbiota
Interventions
arabinogalactan, maltodextrin
Other
Lead sponsor
Biofortis, Merieux NutriSciences
Industry
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 22, 2020 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

Morning Light Treatment for Traumatic Stress: The Role of Amygdala Reactivity

NCT04117347
View directory record Official record
Conditions
Stress
Interventions
Light therapy A via the Re-Timer®, Light therapy B via the Re-Timer®, Light therapy C via the Re-Timer®
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 27, 2024 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional

Light Therapy for Obsessive-compulsive Disorder (OCD)

NCT05391503
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Light therapy, Placebo light therapy
Behavioral
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
18 Years to 35 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

Light Therapy for PD - Dose Selection

NCT04291014
View directory record Official record
Conditions
Parkinson Disease, Sleep Disorder, Fatigue
Interventions
SunRay Light Boxes
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
45 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
25
States / cities
Birmingham, Alabama • Phoenix, Arizona • Irvine, California + 20 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Oct 22, 2026, 10:52 AM EDT
Completed Not applicable Interventional Results available

Sleep and Circadian Rhythms in Mechanically Ventilated Patients

NCT01276652
View directory record Official record
Conditions
Respiratory Failure, Critical Illness
Interventions
Environmental modification
Behavioral
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 26, 2017 · Synced Oct 22, 2026, 10:52 AM EDT