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ClinicalTrials.gov public records Last synced Oct 20, 2026, 1:56 PM EDT

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Showing 25–48 of 62 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Occupational Exposure Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Reducing Farmworkers Exposure to Agricultural Chemicals

NCT00298649
View directory record Official record
Conditions
Pesticide Safety
Interventions
Lay Health Advisor
Behavioral
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 6, 2015 · Synced Oct 20, 2026, 1:56 PM EDT
Completed No phase listed Observational

Lupus Nephritis: Role of Environmental and Occupational Exposures

NCT00342329
View directory record Official record
Conditions
Lupus Nephritis
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 20, 2026, 1:56 PM EDT
Not listed No phase listed Observational

What Happens in Vegas: PEP to PrEP Opportunities

NCT03775083
View directory record Official record
Conditions
Exposure to Human Immunodeficiency Virus (Event)
Interventions
Currently approved medications
Drug
Lead sponsor
Huntridge Family Clinic
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Dec 13, 2018 · Synced Oct 20, 2026, 1:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tech4Rest Trial With Team Truck Drivers

NCT03108599
View directory record Official record
Conditions
Sleep, Sleep Disturbance, Sleep Disorder, Shift Work, Health Knowledge, Attitudes, Practice, Health Behavior, Fatigue, Vibration; Exposure
Interventions
Enhanced Cab, Fit4Sleep
Other · Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
21 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 25, 2024 · Synced Oct 20, 2026, 1:56 PM 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 20, 2026, 1:56 PM EDT
Completed No phase listed Observational

Screening Strategy for Early Diagnosis of Silicosis in At-Risk Populations in Oklahoma

NCT04205708
View directory record Official record
Conditions
Silicosis, Pneumoconiosis; Silica
Interventions
Tuberculosis test, Chest X-ray, Pulmonary Function Test
Diagnostic Test
Lead sponsor
University of Oklahoma
Other
Eligibility
30 Years and older
Enrollment
183 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Dec 6, 2023 · Synced Oct 20, 2026, 1:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Protecting Home Healthcare Workers: An Interactive Video-based App to Coach Workers Through Challenging Health and Safety-related Situations

NCT04593901
View directory record Official record
Conditions
Occupational Exposure
Interventions
Video and App Review
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 14, 2022 · Synced Oct 20, 2026, 1:56 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Beaumont Health Large-scale Automated Serologic Testing for COVID-19

NCT04349202
View directory record Official record
Conditions
COVID-19, Coronavirus Infection, Severe Acute Respiratory Syndrome Coronavirus 2
Interventions
EUROIMMUN assay
Diagnostic Test
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
20,614 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 5, 2021 · Synced Oct 20, 2026, 1:56 PM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy of Hydroxychloroquine Prophylaxis for Health Care Workers at High Risk for COVID-19

NCT04435808
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 14, 2022 · Synced Oct 20, 2026, 1:56 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 20, 2026, 1:56 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 20, 2026, 1:56 PM EDT
Completed No phase listed Observational

Fungicide Exposure Assessment Among Apple and Peach Farmers in the Argicultural Health Study

NCT00342394
View directory record Official record
Conditions
Pesticides, Occupational Exposure
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2013
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 20, 2026, 1:56 PM EDT
Enrolling by invitation Not applicable Interventional

Personalizing Veterans' Lung Cancer Screening and Diagnosis

NCT07838519
View directory record Official record
Conditions
Lung Cancer Screening, Military Service-related Environmental and Occupational Exposures, Cancer Survivor, Family History of Lung Cancer, COPD, Burn Pit Exposure, Agent Orange Exposure, Radiation Exposure, Asbestos Exposure, Lung Neoplasm
Interventions
Low-dose computed tomography
Procedure
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
50 Years to 80 Years
Enrollment
1,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
7
States / cities
Aurora, Colorado • Chicago, Illinois • Louisville, Kentucky + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 20, 2026, 1:56 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

COVID-19 CHAMPS Study of Healthcare, First Responder and Service Workers

NCT04370821
View directory record Official record
Conditions
Occupational Exposure to SARS-CoV-2, COVID-19
Interventions
Not listed
Lead sponsor
Villanova University
Other
Eligibility
18 Years and older
Enrollment
2,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Villanova, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 20, 2026, 1:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

New Fabric Attenuation Device in Endovascular Interventional Radiology II (PREFER II)

NCT01611454
View directory record Official record
Conditions
Occupational Exposure to Radiation
Interventions
XPF thyroid collar, Standard 0.5mm lead equivalent thyroid collar
Device
Lead sponsor
Baptist Health South Florida
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 19, 2021 · Synced Oct 20, 2026, 1:56 PM EDT
Recruiting Phase 1Phase 2 Interventional

Examining a Novel Gastrointestinal Intervention to Negate Environmental Toxicants (ENGINE)

NCT07226440
View directory record Official record
Conditions
Toxicant Exposure, Firefighter, Occupational Exposure to Chemicals
Interventions
Colesevelam, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2026 · Synced Oct 20, 2026, 1:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Circadian Rhythm Disruption Effects on Smoke Inhalation

NCT04955431
View directory record Official record
Conditions
Inflammation, Sleep Deprivation, Circadian Rhythm Sleep Disorder, Shift Work Type, Smoke Inhalation
Interventions
Sleep Restriction, Normal Sleep
Behavioral
Lead sponsor
University of Montana
Other
Eligibility
18 Years to 44 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Oct 20, 2026, 1:56 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

HIV Non Occupational Post-Exposure Prophylaxis (PEP)

NCT00594646
View directory record Official record
Conditions
HIV Infections
Interventions
TRUVADA + Raltegravir
Drug
Lead sponsor
Fenway Community Health
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Oct 20, 2026, 1:56 PM EDT
Completed Phase 2 Interventional Results available

COVID-19 PrEP HCW HCQ Study

NCT04354870
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine (HCQ)
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Oct 20, 2026, 1:56 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Admission and Management of Occupational or Other Exposures to Biodefense/Bioterrorism Agents or to Epidemic/Emerging Infectious Diseases

NCT01200953
View directory record Official record
Conditions
Occupational Accidents, Incubation Period, Infectious Disese
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 99 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 20, 2026, 1:56 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Multilevel Intervention to Prevent Noise Exposure in Farmworkers

NCT07554378
View directory record Official record
Conditions
Noise Exposure, Hearing Loss, Noise-Induced, Occupational Exposure
Interventions
Multilevel Hearing Protection Training
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Oct 20, 2026, 1:56 PM EDT
Completed No phase listed Observational

Study of Markers of Cosmic Radiation Exposure and Effect Among Flight Crews

NCT00341900
View directory record Official record
Conditions
Frequency of Chromosome Aberrations
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
25 Years to 60 Years · Male only
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 7, 2020 · Synced Oct 20, 2026, 1:56 PM EDT
Completed No phase listed Observational Results available

Heart at Work Study

NCT04075279
View directory record Official record
Conditions
Occupational Diseases, Cardiovascular Diseases, Cardiovascular Risk Factor, Occupational Exposure
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
35 Years to 59 Years · Male only
Enrollment
19 participants
Timeline
2019 – 2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Oct 20, 2026, 1:56 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Comparing Hearing Aid Fitting Methods in Blast-exposed Veterans

NCT06309264
View directory record Official record
Conditions
Auditory Diseases, Central
Interventions
Phonak Lumina P90
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 60 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
3
States / cities
Loma Linda, California • Sepulveda, California • West Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Oct 20, 2026, 1:56 PM EDT