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ClinicalTrials.gov public records Last synced Oct 23, 2026, 2:06 PM EDT

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Showing 745–768 of 2,165 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Exposure Clear all
Completed Phase 3 Interventional Results available

Pre-exposure Prophylaxis for SARS-Coronavirus-2

NCT04328467
View directory record Official record
Conditions
COVID-19, Corona Virus Infection, ARDS, Acute Respiratory Distress Syndrome
Interventions
Hydroxychloroquine, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
1,483 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 2, 2021 · Synced Oct 23, 2026, 2:06 PM EDT
Not listed Phase 1Phase 2 Interventional

Study of PTW-002 in Patients With Dominant or Recessive Dystrophic Epidermolysis Bullosa Due to Mutation(s) in Exon 73 of the COL7A1 Gene

NCT05529134
View directory record Official record
Conditions
Dystrophic Epidermolysis Bullosa
Interventions
PTW-002 10 mg/g gel, Placebo
Drug
Lead sponsor
Phoenicis Therapeutics
Industry
Eligibility
4 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
3
States / cities
Stanford, California • Worcester, Massachusetts • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 31, 2023 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Phase 4 Interventional Results available

D-Cycloserine Enhancement of Exposure in Social Phobia

NCT00633984
View directory record Official record
Conditions
Social Anxiety Disorder
Interventions
Cognitive Behavioral Group Therapy (CBGT), D-Cycloserine, Placebo
Behavioral · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 14, 2014 · Synced Oct 23, 2026, 2:06 PM EDT
Completed No phase listed Observational

Tysabri Observational Cohort Study - Multiple Sclerosis (MS) Registries

NCT03399981
View directory record Official record
Conditions
Progressive Multifocal Leukoencephalopathy
Interventions
Tysabri
Biological
Lead sponsor
Biogen
Industry
Eligibility
Not listed
Enrollment
80,327 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Oct 23, 2026, 2:06 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Radon on the RADAR (Residents Acting to Detect and Alleviate Radon) 2.0

NCT07806799
View directory record Official record
Conditions
Radon Exposure
Interventions
Radon Risk Messaging Materials
Behavioral
Lead sponsor
Stacy Stanifer
Other
Eligibility
21 Years to 100 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 23, 2026, 2:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Service and Health During the Iraq and Afghanistan Era

NCT01987401
View directory record Official record
Conditions
Iraq and Afghanistan Era Veterans
Interventions
Not listed
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
1,242 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
2
States / cities
Boston, Massachusetts • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Oct 23, 2026, 2:06 PM EDT
Recruiting No phase listed Observational

Registry to Collect Information on Pregnancy, Neonatal, and Infant Outcomes in Pregnant Women Exposed to QUVIVIQ®

NCT06498128
View directory record Official record
Conditions
Insomnia
Interventions
Daridorexant, Non-orexin receptor antagonist medications for insomnia, No insomnia medication
Drug · Other
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
15 Years to 50 Years · Female only
Enrollment
785 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2033
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Investigating the Immunogenicity of a U.S.-Licensed Meningococcal Serogroup B Vaccine (Trumenba)

NCT02569632
View directory record Official record
Conditions
Meningococcal Infections
Interventions
Trumenba Vaccine (Wyeth/Pfizer Pharmaceuticals)
Biological
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Oakland, California • Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 2, 2021 · Synced Oct 23, 2026, 2:06 PM EDT
Completed No phase listed Observational

Trichloroethylene (TCE) Exposure in an Industrial Population

NCT00839514
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
University of Kentucky
Other
Eligibility
Not listed
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 7, 2012 · Synced Oct 23, 2026, 2:06 PM EDT
Recruiting No phase listed Observational

Key Longitudinal Associations With Risk and Glioblastoma Outcomes

NCT06625684
View directory record Official record
Conditions
Glioblastoma
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional

TMS + Exposure Therapy for Pediatric OCD

NCT05931913
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Transcranial Magnetic Stimulation: intermittent theta burst to dorsolateral prefrontal cortex, Exposure with Response Prevention, Transcranial Magnetic Stimulation: Sham, Transcranial Magnetic Stimulation: continuous theta burst to pre supplementary motor area
Device · Behavioral
Lead sponsor
Bradley Hospital
Other
Eligibility
12 Years to 21 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Minneapolis, Minnesota • Riverside, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 19, 2026 · Synced Oct 23, 2026, 2:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Body Temperature in Persons With Tetraplegia When Exposed to Heat

NCT01890915
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Heat Exposure
Other
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 3, 2016 · Synced Oct 23, 2026, 2:06 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Induced Changes in Ventilatory Responsiveness and Altitude Exposure

NCT01241513
View directory record Official record
Conditions
Effects of High Altitude, Hypoxia, Inadequate or Impaired Breathing Pattern or Ventilation, Abnormal Blood Oxygen Pressure
Interventions
NAC, Placebo
Drug
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 39 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2020 · Synced Oct 23, 2026, 2:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Male:Female Birth Ratios and Phthalate Levels

NCT00903318
View directory record Official record
Conditions
Endocrine Diseases
Interventions
Questionnaire
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 40 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2017
U.S. locations
3
States / cities
Baytown, Texas • Houston, Texas • La Joya, Texas
Source: ClinicalTrials.gov public record
Updated Feb 13, 2017 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Asthma and Obesity Diet Versus Exercise

NCT03644355
View directory record Official record
Conditions
Obesity, Childhood, Asthma in Children, Inflammatory Response, Metabolic Syndrome, Nutrition Poor, Physical Activity, Behavior, Eating, Molecular Biology, Restriction Fragment Length Polymorphisms, Maternal Exposure, Genetic Change
Interventions
Lifestyle counseling
Behavioral
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
13 Years to 19 Years · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Comprehensive HIV Prevention Package for MSM in Southern Africa: Pilot Study (Sibanye Health Project)

NCT02043015
View directory record Official record
Conditions
HIV
Interventions
Condom choices, Condom-compatible lubricant choices, Couples HIV counseling and testing (CVCT), Pre-exposure prophylaxis with FTC/TDF, Staff and provider MSM and LGBT sensitization training, HIV Testing and Risk-reduction counseling, Linkage to care
Behavioral · Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
2
States / cities
Atlanta, Georgia • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 17, 2018 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Test of an Inhibitory Learning Model of Extinction in Treatment of Anxious Youth

NCT03372915
View directory record Official record
Conditions
Anxiety Disorders
Interventions
Standard Exposure, Exposure + Inhibitory Learning
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
7 Years to 17 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 17, 2020 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Interaction Effects of Temperature and Ozone

NCT01981135
View directory record Official record
Conditions
Exposure to Environmental Pollution, Non-occupational
Interventions
Clean Air, Ozone
Other
Lead sponsor
Environmental Protection Agency (EPA)
Federal
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 10, 2015 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Phase 3 Interventional

Next Generation Ingestible Sensors for Medication Adherence Measurement

NCT05592613
View directory record Official record
Conditions
HIV Infection, Adherence, Medication, Adherence, Treatment, Pre-Exposure Prophylaxis, Antiretroviral Therapy
Interventions
Next-generation Reader and ID-Cap System, Truvada for pre-exposure prophylaxis (PrEP), Biktarvy for antiretroviral therapy (ART)
Device · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Oct 23, 2026, 2:06 PM EDT
Withdrawn Phase 4 Interventional

Hepatitis C Virus Post-Exposure Prophylaxis for Health Care Workers

NCT01766115
View directory record Official record
Conditions
Viral Hepatitis C
Interventions
Telaprevir
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2014 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Linkage of Transgender Individuals to PrEP

NCT03191474
View directory record Official record
Conditions
HIV Seronegativity, Linkage
Interventions
T-POWr Intervention
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
2
States / cities
Los Angeles, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 13, 2021 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CSD231005 Nicotine Pouch Biomarkers of Exposure

NCT06303115
View directory record Official record
Conditions
Tobacco Use, Smoking
Interventions
Nicotine Pouch P1312914, 4 mg nicotine, Nicotine Pouch P1312915, 8 mg nicotine, Nicotine Pouch P1013215, 8 mg nicotine, Nicotine Pouch P1013218, 10 mg nicotine, Nicotine Pouch P1012919, 12 mg nicotine, Smoking Abstinence, Continued UB cigarette smoking
Other
Lead sponsor
RAI Services Company
Industry
Eligibility
21 Years to 60 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
5
States / cities
Bentonville, Arkansas • Lexington, Kentucky • Springfield, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2025 · Synced Oct 23, 2026, 2:06 PM EDT
Not listed Not applicable Interventional

Narrative Exposure Based Intervention For Post-Traumatic Stress Disorder

NCT03229525
View directory record Official record
Conditions
Post Traumatic Stress Disorder
Interventions
Trauma Related Expressive Writing, Neutral Expressive Writing
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 13, 2019 · Synced Oct 23, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessing PFAS Exposure for Better Health

NCT07391397
View directory record Official record
Conditions
Environmental Health Effects
Interventions
Blood Test and Report Back
Behavioral
Lead sponsor
Million Marker Wellness, Inc.
Industry
Eligibility
18 Years and older
Enrollment
183 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 23, 2026, 2:06 PM EDT