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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Environmental Exposures Clear all
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Cognitive Rehabilitation and Exposure Therapy for Geriatric Hoarding

NCT05254015
View directory record Official record
Conditions
Hoarding Disorder, Obsessive-Compulsive Disorder
Interventions
Cognitive Rehabilitation and Exposure/Sorting Therapy (CREST), Case Management
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
50 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Sep 19, 2026, 5:57 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

The Role of Heliox in Respiratory Control

NCT07424014
View directory record Official record
Conditions
Work of Breathing
Interventions
Heliox inspirate
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Q Fever Vaccine

NCT02092142
View directory record Official record
Conditions
Q Fever
Interventions
Q fever Vaccine
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2019
U.S. locations
1
States / cities
Fort Deterick, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 1, 2020 · Synced Sep 19, 2026, 5:57 PM EDT
Active, not recruiting No phase listed Observational

Determinants of Bladder Cancer Recurrence Study (The DETER Study)

NCT02400944
View directory record Official record
Conditions
Bladder Cancer
Interventions
questionnaires, Saliva and/or urine sample
Behavioral · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
4
States / cities
Basking Ridge, New Jersey • Commack, New York • Harrison, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional

HOME Study (Health Outcomes and Measures of the Environment Study)

NCT00129324
View directory record Official record
Conditions
Environmental Exposures, Child Development, Lead and Injury Reduction
Interventions
Lead Hazard Control Intervention, Injury Hazard Control Intervention
Procedure
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years and older · Female only
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2018
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 5, 2020 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Stress & Resilience Study

NCT06063174
View directory record Official record
Conditions
Stress, Stress, Psychological, Stress, Physiological, Stress, Emotional, Stress Reaction
Interventions
Education Program, Think Well Program, Be Well Program, Eat Well Program, Sleep Well Program, Move Well Program
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
712 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2025 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Responses to Exposure to Low Levels of Concentrated Ambient Particles in Healthy Young Adults

NCT03232086
View directory record Official record
Conditions
Exposure to Pollution
Interventions
Clean Air, PM2.5
Other
Lead sponsor
Environmental Protection Agency (EPA)
Federal
Eligibility
18 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 4, 2021 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional

Home-Based Asthma Support and Education for Adults

NCT01783028
View directory record Official record
Conditions
Asthma
Interventions
Community Health Worker support
Behavioral
Lead sponsor
Public Health - Seattle and King County
Government
Eligibility
18 Years to 65 Years
Enrollment
366 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 11, 2014 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional Results available

Sleep and Circadian Rhythms in Mechanically Ventilated Patients

NCT01276652
View directory record Official record
Conditions
Respiratory Failure, Critical Illness
Interventions
Environmental modification
Behavioral
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Sep 19, 2026, 5:57 PM EDT
Completed No phase listed Observational

Research on the Environment and Children's Health: Retinoblastoma

NCT00582049
View directory record Official record
Conditions
Retinoblastoma
Interventions
Not listed
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
Not listed
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 3, 2008 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional Results available

Aerobic Exercise in Parkinson's Disease

NCT03808675
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Aerobic walking, Usual care with PD specific health education
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Natural History Study of Early Life Exposures in Agriculture (ELEA)

NCT07328516
View directory record Official record
Conditions
Prostate Cancer, Leukemia, Breast Cancer, Melanoma, Colorectal Cancer
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 99 Years
Enrollment
64,277 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Recruiting Early Phase 1 Interventional

Piloting Virtual Reality Environments to Treat PTSD in Healthcare Workers

NCT04887116
View directory record Official record
Conditions
Posttraumatic Stress Disorder
Interventions
Virtual Reality Exposure Therapy
Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Alveolar Ridge Preservation Following Tooth Extraction.

NCT05505084
View directory record Official record
Conditions
Tooth Fractures, Tooth Extraction Status Nos, Caries
Interventions
Tooth extraction and ridge preservation using different barrier mermbranes
Procedure
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 80 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Environmental Toxicants Avoidance Study

NCT04821752
View directory record Official record
Conditions
Pollution; Exposure, Glucose Intolerance, Glycemic Control
Interventions
Avoidance Education
Behavioral
Lead sponsor
Bastyr University
Other
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Kenmore, Washington
Source: ClinicalTrials.gov public record
Updated Sep 26, 2024 · Synced Sep 19, 2026, 5:57 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Doulas as Environmental Educators and Partners Study

NCT06032143
View directory record Official record
Conditions
Health Knowledge, Attitudes, Practice
Interventions
Online educational phthalate course, Control environmental education, Phthalate conversation, Environmental exposures conversation
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

BATokines as Biomarkers of Brown Fat in Humans

NCT05050240
View directory record Official record
Conditions
Healthy Lifestyle
Interventions
Cooling Vest Procedure, Fasting overnight
Other
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 28 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional

Family-Based Intervention Study of the Effects of Environmental Exposures on Breast Tissue Composition

NCT04265547
View directory record Official record
Conditions
Breast Cancer Risk
Interventions
Breast Cancer Risk Reduction Household Intervention
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
10 Years to 65 Years · Female only
Enrollment
32 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 Sep 22, 2025 · Synced Sep 19, 2026, 5:57 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

GARM II: A Study on the Genetics of Age-related Maculopathy

NCT01115387
View directory record Official record
Conditions
Age-related Macular Degeneration, Age-related Maculopathy
Interventions
Observational-1, Observational-2
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
49 Years and older
Enrollment
603 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2027
U.S. locations
2
States / cities
Los Angeles, California • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Not applicable Interventional Results available

Dry Eye Symptom Relief Assessment With Use of TrueTear in a Controlled Adverse Environment

NCT03097614
View directory record Official record
Conditions
Dry Eye, Dry Eye Syndromes
Interventions
TrueTear
Device
Lead sponsor
Oculeve, Inc.
Industry
Eligibility
22 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Andover, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 17, 2018 · Synced Sep 19, 2026, 5:57 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

MAPS PrEP Van Study

NCT06908252
View directory record Official record
Conditions
HIV Infection
Interventions
Pre-Exposure Prophylaxis (PrEP)
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Not yet recruiting No phase listed Observational

Precision Medicine for Indolent Systemic Mastocytosis (PRISM)

NCT07757893
View directory record Official record
Conditions
Systemic Mastocytosis
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 19, 2026, 5:57 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Scalability of a Home Health Navigator Program to Reduce Arsenic, Nitrate, and Lead in Private Well Water

NCT05395663
View directory record Official record
Conditions
Pollution; Exposure
Interventions
Community health worker
Behavioral
Lead sponsor
Oregon State University
Other
Eligibility
21 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced Sep 19, 2026, 5:57 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

PrEP4Her: Developing a Novel Strategy to Implement PrEP Into Women's Healthcare

NCT07209722
View directory record Official record
Conditions
PrEP Precriptions for Reproductive Aged Women
Interventions
PrEP acronym (pre-exposure prophylaxis)
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
1,377 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced Sep 19, 2026, 5:57 PM EDT