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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Ultraviolet Rays Clear all
Completed Not applicable Interventional

Effectiveness of Enhanced Terminal Room Disinfection to Prevent Healthcare-associated Infections (HAIs)

NCT01579370
View directory record Official record
Conditions
Multidrug Resistant Organisms, Healthcare Associated Infections
Interventions
Quaternary ammonium, Bleach, Quaternary ammonium and UV-C light, Bleach and UV-C light
Other
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
21,395 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
9
States / cities
Burlington, North Carolina • Chapel Hill, North Carolina • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2015 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Clinical Evaluation of the Photoallergy Potential of Atralin Gel

NCT00603772
View directory record Official record
Conditions
Healthy
Interventions
Atralin (tretinoin) gel, 0.05%
Drug
Lead sponsor
Coria Laboratories, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 5, 2008 · Synced Sep 23, 2026, 8:19 PM 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 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional Results available

Validation of SHADE a Mobile Technology for Monitoring of Ultraviolet Exposure

NCT03315286
View directory record Official record
Conditions
Skin Cancer, Actinic Keratoses, Ultraviolet-Induced Change in Normal Skin, Behavior, Health, Behavior, Risk Reduction
Interventions
SHADE Ultraviolet Sensor, Standard of care counseling
Device · Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 80 Years
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 23, 2026, 8:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Solar-Simulated Ultraviolet Radiation on Gene Expression in Unprotected and Sunscreen-Protected Skin of Healthy Adults With Fitzpatrick Skin Type II

NCT00099112
View directory record Official record
Conditions
Non-melanomatous Skin Cancer, Precancerous Condition
Interventions
microarray analysis, biopsy, evaluation of cancer risk factors
Genetic · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 45 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 29, 2015 · Synced Sep 23, 2026, 8:19 PM 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 23, 2026, 8:19 PM 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 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Solius UV Light Source in Improving Serum Levels of 25-hydroxyvitamin D

NCT04865432
View directory record Official record
Conditions
Vitamin D Deficiency, Vitamin D Insufficiency
Interventions
UVB treatment
Device
Lead sponsor
Boston University
Other
Eligibility
22 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2022 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy of Polypodium Leucotomos Extract Decreasing UVA Premutagenic and Photoaging Markers

NCT00520910
View directory record Official record
Conditions
Aging, Skin Abnormalities
Interventions
Polypodium leucotomos
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 17, 2019 · Synced Sep 23, 2026, 8:19 PM EDT
Withdrawn Not applicable Interventional

Treatment of Infected Dialysis Catheters With Fiber Optic Ultraviolet Light

NCT02899780
View directory record Official record
Conditions
Catheter-Related Infections
Interventions
Ultraviolet light emitting optical fiber
Device
Lead sponsor
Ultraviolet Interventions
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 29, 2018 · Synced Sep 23, 2026, 8:19 PM EDT
Recruiting Not applicable Interventional

Sun Exposure and Activities After Skin Cancer: Optimization of mHealth Interventions

NCT07556380
View directory record Official record
Conditions
Melanoma (Skin Cancer)
Interventions
UV Real-Time Alerts, Track Your Sun Protection, Current Conditions, Health Coaching, Action Planning, Core Components
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Chicago, Illinois • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional Results available

Ultraviolet Light And Vitamin D In Subjects With Fat Malabsorption Or After Gastric Bypass Surgery

NCT01910792
View directory record Official record
Conditions
Vitamin D Deficiency, Gastrointestinal Diseases
Interventions
Sperti Lamp
Device
Lead sponsor
Boston University
Other
Eligibility
18 Years to 64 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 10, 2017 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Phase 1Phase 2 Interventional

Ultraviolet B (UVB) Light Therapy in the Treatment of Skin Conditions With Altered Dermal Matrix

NCT00129428
View directory record Official record
Conditions
Keloid, Scleroderma, Localized, Acne Keloidalis, Scars, Granuloma Annulare
Interventions
UVB Irradiation
Procedure
Lead sponsor
University of Michigan
Other
Eligibility
10 Years to 80 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2009
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 30, 2015 · Synced Sep 23, 2026, 8:19 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety Study of Bone Marrow Derived Stem Cells on Patients With Cutaneous Photoaging

NCT01771679
View directory record Official record
Conditions
Chronic Effect of Ultraviolet Radiation on Photoaged Skin, Dermatologic Disorders
Interventions
Allogeneic Mesenchymal Bone Marrow Cells
Biological
Lead sponsor
Stemedica Cell Technologies, Inc.
Industry
Eligibility
40 Years to 70 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2024
U.S. locations
2
States / cities
La Mesa, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 30, 2022 · Synced Sep 23, 2026, 8:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Response of Serum 25-Hydroxyvitamin D to Incidental Ultraviolet Light Exposure

NCT00832533
View directory record Official record
Conditions
Melanoma
Interventions
Not listed
Lead sponsor
New Mexico Cancer Research Alliance
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 27, 2015 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional Results available

Benefits of Tanning in Fibromyalgia Patients

NCT00447083
View directory record Official record
Conditions
Fibromyalgia Syndrome
Interventions
UVB, Non-UVB
Device · Procedure
Lead sponsor
Wake Forest University
Other
Eligibility
25 Years to 60 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 12, 2018 · Synced Sep 23, 2026, 8:19 PM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Treatment of Keratoconus Using Collagen Cross-Linking

NCT00841386
View directory record Official record
Conditions
Keratoconus
Interventions
Riboflavin-5-phosphate, Sham cross-linking
Drug
Lead sponsor
University at Buffalo
Other
Eligibility
16 Years to 35 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
2
States / cities
Amherst, New York • Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2009 · Synced Sep 23, 2026, 8:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Melanoma Risk-Reduction Among Patients and Family Members

NCT00510302
View directory record Official record
Conditions
Melanoma
Interventions
Questionnaire, Interview
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 15, 2020 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional

Visible Light Study

NCT02663921
View directory record Official record
Conditions
Skin Disease, Pigment Disorders
Interventions
Part A: Baseline-Week 2, Part B: Week 4-Week 12
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 16, 2019 · Synced Sep 23, 2026, 8:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gauging Of Light Dependent Experiences Through Neuroimaging (GOLDEN)

NCT01761032
View directory record Official record
Conditions
Compulsive and Infrequent Tanners
Interventions
Tanning
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
21 Years to 40 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 11, 2014 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Water Immersion Studies of a Long-wear Sunscreen to Improve Protection Against Ultraviolet Radiation

NCT05767008
View directory record Official record
Conditions
Sunburn
Interventions
Sunscreen -R43
Other
Lead sponsor
Nanometics (d.b.a. PHD Biosciences)
Industry
Eligibility
18 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2023 · Synced Sep 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional Results available

Treatment of Acne Keloidalis Nuchae (Razor Bumps Behind the Neck) Using UV Light Therapy

NCT01328080
View directory record Official record
Conditions
Acne Keloidalis Nuchae
Interventions
Targeted UV-B
Radiation
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Male only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Sep 23, 2026, 8:19 PM 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 23, 2026, 8:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Motivational Enhancement Approach to Skin Cancer Prevention

NCT00705887
View directory record Official record
Conditions
Ultraviolet Rays, Motivation
Interventions
Brief Motivational Enhancement Intervention
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 30 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Provo, Utah
Source: ClinicalTrials.gov public record
Updated Jun 26, 2008 · Synced Sep 23, 2026, 8:19 PM EDT