- 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
Search Results
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 1–24
of 146
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Delirium
- Interventions
- Bright light therapy, Sham light
- Device
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- 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
- Conditions
- Depression, Adolescent - Emotional Problem
- Interventions
- light box (Carex DayLight Classic Model)
- Device
- Lead sponsor
- Ann & Robert H Lurie Children's Hospital of Chicago
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 9 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- 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
- Conditions
- PTSD, Sleep Problems
- Interventions
- PTSD wavelength-1 bright light, PTSD wavelength-2 bright light
- Device
- Lead sponsor
- University of Arizona
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 90 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2020
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Type 1 Diabetes (T1D), Sleep Health
- Interventions
- Sleep Health and Circadian Timing Intervention
- Behavioral
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 14 Years to 19 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Cystic Fibrosis, Depressive Symptoms, Chronic Obstructive Pulmonary Disease
- Interventions
- Bright Light Therapy (BLT) Lamp
- Device
- Lead sponsor
- Erica Osborn
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 2
- States / cities
- Pittsburgh, Pennsylvania
- 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
- 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
- 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
- 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
- Conditions
- Developmental Delay Disorders, Chromosome Deletion, Mental Retardation, Sleep Disorders, Circadian Rhythm, Self Injurious Behavior
- Interventions
- dTR Melatonin (NIH CC PDS), Phototherapy (Bright Light), Melatonin CR
- Drug · Device
- Lead sponsor
- National Human Genome Research Institute (NHGRI)
- NIH
- Eligibility
- 3 Years to 45 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2018
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Depression, Major Depressive Disorder, Postpartum Depression
- Interventions
- Triple Chronotherapy, Usual Care
- Behavioral · Other
- Lead sponsor
- Rhode Island Hospital
- Other
- Eligibility
- 18 Years to 40 Years · Female only
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2019
- U.S. locations
- 1
- States / cities
- Providence, Rhode Island
- Conditions
- Non-Psychotic Unipolar Depression, Bipolar Depression
- Interventions
- Triple Chronotherapy
- Procedure
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 13 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Neoplasms, Fatigue
- Interventions
- Bright White Light, Dim Red Light
- Other
- Lead sponsor
- St. Jude Children's Research Hospital
- Other
- Eligibility
- 12 Years and older
- Enrollment
- 55 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2022
- U.S. locations
- 1
- States / cities
- Memphis, Tennessee
- 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
- Conditions
- Depression, Sleep Quality
- Interventions
- Re-Timer glasses
- Device
- Lead sponsor
- University of Michigan
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2016
- U.S. locations
- 1
- States / cities
- Ann Arbor, Michigan
- Conditions
- Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm, Sleep Disorder
- Interventions
- Counseling, Methylphenidate Hydrochloride, Phototherapy, Placebo Administration, Quality-of-Life Assessment, Sham Intervention, Therapeutic Melatonin
- Other · Drug · Procedure
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 68 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2028
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Depression, Postpartum Depression, Prenatal Disorder, Circadian Dysregulation, Pregnancy Related, Sleep Disturbance
- Interventions
- Personalized Integrated Chronotherapy
- Behavioral
- Lead sponsor
- Rhode Island Hospital
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 120 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2025
- U.S. locations
- 3
- States / cities
- Glen Oaks, New York • Chapel Hill, North Carolina • Providence, Rhode Island
- 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
- Conditions
- Dementia
- Interventions
- Phototherapy
- Other
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 70 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- 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