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Showing 1–24 of 139 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Exposure, Environmental Clear all
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 5, 2026, 9:15 AM EDT
Not listed Phase 2 Interventional

Healthy Outcomes of Pregnancy Education

NCT00381823
View directory record Official record
Conditions
Environmental Tobacco Smoke Exposure, Depression, Partner Abuse, Tobacco Smoking
Interventions
Cognitive Behavioral Therapy
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years and older · Female only
Enrollment
1,750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 28, 2006 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional

The IGNITE for Kids Study on Concentrated Investment in Black Neighborhoods and Child Health and Well-Being

NCT05760001
View directory record Official record
Conditions
Financial Stress, Economic Problems, Environmental Exposure, Health Behavior, Health, Subjective, Mental Health Wellness
Interventions
Assigned Interventions
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
3 Years to 19 Years
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Phase 3 Interventional

Mouse Allergen and Asthma Intervention Trial

NCT01251224
View directory record Official record
Conditions
Asthma, Mouse Allergy, Mouse Allergen Exposure
Interventions
Integrated Pest Management, Education
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
6 Years to 17 Years
Enrollment
361 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
Baltimore, Maryland • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional

Developing and Evaluating an Indoor Air Pollution Intervention Among Cardiovascular Patients: the AIRWISE Study

NCT06384625
View directory record Official record
Conditions
Coronary Heart Disease, Cardiovascular Diseases, Environmental Exposure
Interventions
AIRWISE
Other
Lead sponsor
University of Montana
Other
Eligibility
55 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Human Biological Responses to Low Level Ozone

NCT02857283
View directory record Official record
Conditions
Environmental Exposure, Nasal Inflammation
Interventions
Ozone, Filtered Air, Health and Exposure Tracker (HET)
Other · Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 13, 2021 · Synced Sep 5, 2026, 9:15 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Study of Genetic Risk Factors for Spina Bifida and Anencephaly

NCT00031122
View directory record Official record
Conditions
Spina Bifida, Anencephaly
Interventions
No Intervention
Other
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Not listed
Enrollment
1,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2012
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 4, 2010 · Synced Sep 5, 2026, 9:15 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Apple Hearing Study

NCT04172766
View directory record Official record
Conditions
Hearing Loss, Noise-Induced, Hearing Loss, Tinnitus
Interventions
Not listed
Lead sponsor
Apple Inc.
Industry
Eligibility
18 Years and older
Enrollment
300,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Sep 5, 2026, 9:15 AM EDT
Recruiting No phase listed Observational

NHALES (Natural History of Asthma With Longitudinal Environmental Sampling)

NCT02327897
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 60 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2030
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 5, 2026, 9:15 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Observational Study of Decentralized Urine Optical Interaction Patterns Associated With Environmental Microplastic and Nanoplastic Exposure

NCT07775495
View directory record Official record
Conditions
Healthy Adult Participants
Interventions
Not listed
Lead sponsor
Ecotera Health LLC
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
51
States / cities
Birmingham, Alabama • Anchorage, Alaska • Phoenix, Arizona + 48 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional

Using Immersive Virtual Reality to Treat Pediatric Anxiety

NCT04504773
View directory record Official record
Conditions
Specific Phobia, Specific Phobia, Situational, Specific Phobia, Animal, Specific Phobia, Natural Environment, Childhood Anxiety Disorder
Interventions
Virtual Reality Exposure Therapy
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
8 Years to 17 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of a Tobacco Control Intervention in African-American Families

NCT01164306
View directory record Official record
Conditions
Tobacco Prevention, Environmental Tobacco Smoke Exposure, Tobacco Cessation
Interventions
LifeSkills Training, Healthy Lifestyle Behavior Choices, NRT and Motivational Interviewing (MI)
Behavioral
Lead sponsor
Augusta University
Other
Eligibility
8 Years and older
Enrollment
688 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 1, 2015 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Pesticide Exposure on Neurodevelopment/Growth/Respiratory Health

NCT00021658
View directory record Official record
Conditions
Environmental Exposure
Interventions
Pesticide application procedures
Procedure
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years and older · Female only
Enrollment
550 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2003
U.S. locations
1
States / cities
Salinas, California
Source: ClinicalTrials.gov public record
Updated Sep 28, 2014 · Synced Sep 5, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Lung Mucus Hypersecretion and NQO1

NCT00729352
View directory record Official record
Conditions
Environmental Exposure, Ozone, Air Pollution, Genetic Susceptibility
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 28, 2014 · Synced Sep 5, 2026, 9:15 AM 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 5, 2026, 9:15 AM 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 3, 2026 · Synced Sep 5, 2026, 9:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Epigenetic and Developmental Effects of In Utero Exposure to Environmental Toxicants

NCT01815385
View directory record Official record
Conditions
Full Term Infants, Environmental Exposures, Adiposity
Interventions
Not listed
Lead sponsor
Montefiore Medical Center
Other
Eligibility
1 Hour to 72 Hours
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2020
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2021 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Ultralow Dose PAH Binary Mixture Study

NCT03631667
View directory record Official record
Conditions
Environmental Exposure
Interventions
[14C]-benzo[a]pyrene, [14C]-benzo[a]pyrene plus phenanthrene
Drug
Lead sponsor
Oregon State University
Other
Eligibility
21 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessing Gene-Environment Interactions in Clinical Presentation of Nevi and Melanoma

NCT03783325
View directory record Official record
Conditions
Nevi and Melanomas
Interventions
UV Counseling, UV Photo, Biological Sample
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 22, 2023 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional

Nurtured in Nature

NCT04146025
View directory record Official record
Conditions
Postpartum Depression, Pregnancy Related, Environmental Exposure
Interventions
Nature Coach Intervention
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 23, 2020 · Synced Sep 5, 2026, 9:15 AM EDT
Completed No phase listed Observational Results available

Change in Knowledge After Receiving Personal Air Pollution Results

NCT05160948
View directory record Official record
Conditions
Environmental Exposure
Interventions
Informational Report
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
15 Years to 99 Years
Enrollment
105 participants
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 5, 2026, 9:15 AM EDT
Completed Not applicable Interventional

Environmental Tobacco Smoke Exposure Reduction in High-Risk Preteens

NCT00217893
View directory record Official record
Conditions
Lung Diseases, Asthma
Interventions
Counseling, Urine Cotinine Feedback, Contingent Incentives, Usual education program
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
8 Years to 13 Years
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 23, 2013 · Synced Sep 5, 2026, 9:15 AM 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 12, 2017 · Synced Sep 5, 2026, 9:15 AM EDT
Active, not recruiting Phase 3 Interventional

Dry Mouth Toothpaste Study - Comparing Two Toothpastes With Arginine

NCT06365047
View directory record Official record
Conditions
Xerostomia
Interventions
8% Arginine toothpaste, 1000 ppm F toothpaste
Device · Drug
Lead sponsor
Tufts University
Other
Eligibility
18 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 5, 2026, 9:15 AM EDT