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ClinicalTrials.gov public records Last synced Oct 25, 2026, 4:18 AM EDT

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Showing 913–936 of 2,165 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Exposure Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Assessment of Pre-Exposure Prophylaxis (PrEP) Administered at Sexually Transmitted Disease (STD) Clinics

NCT01632995
View directory record Official record
Conditions
HIV Infections
Interventions
FTC 200 mg/TDF 300 mg fixed-dose combination tablet
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older · Male only
Enrollment
557 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
3
States / cities
San Francisco, California • Washington D.C., District of Columbia • Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 25, 2026, 4:18 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Light Exposure to Treat Sleep Disruption in Older People

NCT00427323
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders, Circadian Rhythm Sleep Disorders, Hypersomnia
Interventions
light exposure
Procedure
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 11, 2009 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Silica Exposure Among Brick Kiln Workers in Nepal

NCT06090370
View directory record Official record
Conditions
Silicosis
Interventions
N95 Respirator, Protective Eyewear, Baseline Survey, Design of Workshop, Training Workshop Pilot
Device · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
2
States / cities
Baltimore, Maryland • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 24, 2024 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Phase 3 Interventional Results available

Lapatinib Plus Capecitabine Versus Trastuzumab Plus Capecitabine in ErbB2 (HER2) Positive Metastatic Breast Cancer

NCT00820222
View directory record Official record
Conditions
Metastases, Brain
Interventions
capecitabine, lapatinib, trastuzumab
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2018
U.S. locations
17
States / cities
Goodyear, Arizona • Tucson, Arizona • Jonesboro, Arkansas + 14 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2019 · Synced Oct 25, 2026, 4:18 AM EDT
Completed No phase listed Observational

Developing Interview Questions to Estimate Workplace Exposure to Electric and Magnetic Fields

NCT00340054
View directory record Official record
Conditions
Brain and Central Nervous System Tumors
Interventions
questionnaire administration, study of high risk factors
Other · Procedure
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 65 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
Menlo Park, California • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 8, 2012 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effect of Genetics on Metabolism of Efavirenz

NCT00245986
View directory record Official record
Conditions
Metabolism
Interventions
Blood draw
Procedure
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 55 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Not applicable Interventional Results available

Imaginal Exposure for Hoarding Disorder

NCT03734705
View directory record Official record
Conditions
Hoarding Disorder
Interventions
Imaginal Exposure Writing, Neutral Writing
Behavioral · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Oct 25, 2026, 4:18 AM EDT
Completed No phase listed Observational

Environmental Exposures, Genetics, and Exhaled Nitric Oxide in Pediatric Asthma

NCT00395096
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years to 12 Years
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 9, 2021 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Phase 3 Interventional Results available

Trial to Evaluate the Efficacy and Safety of Nitazoxanide (NTZ) for Pre- and Post Exposure Prophylaxis of COVID-19 and Other Viral Respiratory Illnesses (VRI) in Healthcare Workers and Others at Increased Risk of SARS-CoV-2 Infection

NCT04359680
View directory record Official record
Conditions
COVID-19, Viral Respiratory Illnesses
Interventions
Nitazoxanide, Placebo, Vitamin Super B-Complex
Drug · Dietary Supplement
Lead sponsor
Romark Laboratories L.C.
Industry
Eligibility
18 Years to 120 Years
Enrollment
1,407 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
26
States / cities
Hot Springs, Arkansas • Huntington Beach, California • Long Beach, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Health Effects of SLT, Cigarette Smoking, and New Tobacco Products

NCT00469079
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Nicotine gum and lozenge, Taboka, Camel Snus
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 1, 2019 · Synced Oct 25, 2026, 4:18 AM EDT
Not listed Not applicable Interventional

Effects of Mother's Voice and Heartbeat Sounds on Preterm Newborns

NCT01913288
View directory record Official record
Conditions
Preterm Birth
Interventions
Biological Maternal Sounds
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
24 Weeks to 34 Weeks
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 1, 2013 · Synced Oct 25, 2026, 4:18 AM EDT
Active, not recruiting No phase listed Observational

Infectious Disease (ID) Testing OUtreach in Carceral Hubs

NCT06679751
View directory record Official record
Conditions
HIV Infections, Opioid Use Disorder
Interventions
Not listed
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 25, 2026, 4:18 AM EDT
Completed No phase listed Observational

Antibiotic Resistant Patterns of Conjunctival and Nasophayngeal Flora After Repeated Exposure to Topical Antibiotics

NCT00831961
View directory record Official record
Conditions
Age-related Macular Degeneration
Interventions
Conjunctival and nasopharyngeal bacteria cultures
Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 9, 2015 · Synced Oct 25, 2026, 4:18 AM EDT
Recruiting Not applicable Interventional

El Camino HIV Prevention and Care Study

NCT07834853
View directory record Official record
Conditions
HIV Infections
Interventions
Camino Intervention
Behavioral
Lead sponsor
American University
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
2
States / cities
Berkeley, California • Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Study to Assess the Effects of an Oral Dietary Supplement on Overall Facial Appearance Among Healthy Adult Women With Existing Skin Damage From Sun Exposure

NCT01787461
View directory record Official record
Conditions
Photodamaged Skin
Interventions
Imedeen, Placebo
Dietary Supplement
Lead sponsor
Pfizer
Industry
Eligibility
35 Years to 65 Years · Female only
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Miami, Florida • Fair Lawn, New Jersey • Lynchburg, Virginia + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced Oct 25, 2026, 4:18 AM EDT
Recruiting Not applicable Interventional

Addressing Tetrachloroethylene Exposure in an Impacted Community

NCT05819996
View directory record Official record
Conditions
Vapors; Inhalation, Cancer, Volatile Organic Compounds
Interventions
Environmental educational campaign
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 99 Years
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Not applicable Interventional

Treating Cancer-Related Fatigue Through Systematic Light Exposure

NCT01873794
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplantation, Breast Cancer, Fatigue, Mild Cognitive Impairment, Light, Quality of Life, Sleep
Interventions
Bright white light, Dim red light
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
2
States / cities
Hackensack, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Phase IV, Open Label, 4-period Cross-over Study to Investigate a Drug Interaction Between Lamivudine and Sorbitol Oral Solutions in Healthy Volunteers

NCT02634073
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus
Interventions
Lamivudine, Sorbitol
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated May 15, 2017 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effectiveness of Respiratory Protection During Simulated Resuscitation: a Prospective Cohort Study

NCT04591756
View directory record Official record
Conditions
Occupational Exposure
Interventions
Qualitative Fit Testing
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 9, 2020 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Phase 4 Interventional

Single-Center, Double-Blind, Randomized , Parallel Study Comparing Onset of Action, Efficacy & Safety of a Single-Dose of Fexofenadine HCl 180 mg vs Montelukast Na 10 mg & Placebo in Treating Seasonal Allergic Rhinitis Subjects in an Allergen Exposure Unit

NCT00637611
View directory record Official record
Conditions
Seasonal Allergic Rhinitis
Interventions
Fexofenadine HCl
Drug
Lead sponsor
Sanofi
Industry
Eligibility
15 Years and older
Enrollment
1,010 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 12, 2011 · Synced Oct 25, 2026, 4:18 AM EDT
Recruiting Phase 2Phase 3 Interventional Accepts healthy volunteers

Naltrexone for Overdose Prevention

NCT06633900
View directory record Official record
Conditions
Overdose Accidental
Interventions
IM naltrexone, Usual Care
Drug · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 25, 2026, 4:18 AM EDT
Recruiting Not applicable Interventional

Project 4: ACHIEVE PATHFINDER

NCT06070428
View directory record Official record
Conditions
Heart Failure
Interventions
PAC provision at hospital discharge, Control non-intervention; PAC without filter
Other
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Oct 25, 2026, 4:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Development and Evaluation of a PrEP Decision Aid for Women Seeking Domestic Violence Services in Baltimore

NCT05614492
View directory record Official record
Conditions
HIV, Violence, Gender-Based, Pre-Exposure Prophylaxis
Interventions
Individual PrEP Decision Aid, CDC PrEP Video, Shared PrEP Decision Aid
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older · Female only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 22, 2025 · Synced Oct 25, 2026, 4:18 AM EDT
Completed No phase listed Observational

A Study to Describe Mothers' and Babies' Outcomes After Exposure to HyQvia During Pregnancy

NCT05803200
View directory record Official record
Conditions
Exposure During Pregnancy
Interventions
No intervention
Drug
Lead sponsor
Takeda
Industry
Eligibility
16 Years to 44 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 25, 2023 · Synced Oct 25, 2026, 4:18 AM EDT