Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jul 23, 2026, 5:44 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 132 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Environmental Exposures Clear all
Active, not recruiting No phase listed Observational

Project HOPE 1000: Health Outcomes Pregnancy Exposures

NCT04417283
View directory record Official record
Conditions
Pregnant
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 10, 2025 · Synced Jul 23, 2026, 5:44 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 Jul 23, 2026, 5:44 AM EDT
Not yet recruiting Not applicable Interventional

Sperm, Exposure and Endocrine Disruptors

NCT07703046
View directory record Official record
Conditions
Fertility, Male Fertility, Sperm Count, Low, Sperm Quality
Interventions
EDC Education Intervention
Behavioral
Lead sponsor
Million Marker Wellness, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 23, 2026, 5:44 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacokinetics of Benzo[a]Pyrene: Impact of Diet

NCT03802721
View directory record Official record
Conditions
Environmental Exposure
Interventions
[14C]-benzo[a]pyrene, Brussels sprouts before 50 ng dose, DIM supplement before 50 ng dose
Drug
Lead sponsor
Oregon State University
Other
Eligibility
21 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 21, 2025 · Synced Jul 23, 2026, 5:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Environment and Reproductive Health; Human Exposure to Bisphenol A, Phthalates and Fertility and Pregnancy Outcomes

NCT00011713
View directory record Official record
Conditions
Infertility
Interventions
Completion questionnaires/providing biological samples
Other
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 55 Years
Enrollment
1,474 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 10, 2020 · Synced Jul 23, 2026, 5:44 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 Jul 23, 2026, 5:44 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 Jul 23, 2026, 5:44 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Benzo[a]Pyrene Ultralow Dose-Response Study

NCT03318978
View directory record Official record
Conditions
Environmental Exposure
Interventions
[14C]-benzo[a]pyrene
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 Jul 23, 2026, 5:44 AM EDT
Completed Not applicable Interventional

Reducing Environmental Tobacco Smoke in Neonatal Intensive Care Unit (NICU) Infants' Homes

NCT00670280
View directory record Official record
Conditions
Infant Environmental Tobacco Smoke Exposure
Interventions
Motivational Interviewing intervention, Usual Care, Usual Care - Reduced Measurement
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
12 Years and older
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 5, 2016 · Synced Jul 23, 2026, 5:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pre Post Evaluation of Temperature, Steps, and Glucose With Additional Time Spent Outdoors in an Urban and Rural Setting

NCT03614780
View directory record Official record
Conditions
Temperature, Exercise, Diabetes Mellitus, Type 2
Interventions
30 minutes outdoors
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
19 Years to 65 Years · Female only
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 5, 2018 · Synced Jul 23, 2026, 5:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pesticide Exposure Pathways for Farmworker Children

NCT00013754
View directory record Official record
Conditions
Poisoning
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
2 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2003
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 13, 2015 · Synced Jul 23, 2026, 5:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Environmental Assessment of Sleep in Youth

NCT03224455
View directory record Official record
Conditions
Sleep Disorders in Children, Environmental Exposure
Interventions
Not listed
Lead sponsor
Boston Children's Hospital
Other
Eligibility
6 Years to 12 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Jul 23, 2026, 5:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

TEDDY - The Environmental Determinants of Diabetes in the Young

NCT00279318
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
0 Months to 4 Months
Enrollment
8,667 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2025
U.S. locations
4
States / cities
Denver, Colorado • Gainesville, Florida • Augusta, Georgia + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Jul 23, 2026, 5:44 AM EDT
Not listed No phase listed Observational

Healthcare Decisions on Dietary and Environmental Allergen Exposure

NCT03144908
View directory record Official record
Conditions
Dietary Allergy, Environmental Allergy
Interventions
Standard Operating Procedures
Other
Lead sponsor
Data Collection Analysis Business Management
Other
Eligibility
Not listed
Enrollment
200 participants
Timeline
2017 – 2020
U.S. locations
1
States / cities
Land O' Lakes, Florida
Source: ClinicalTrials.gov public record
Updated Jan 22, 2019 · Synced Jul 23, 2026, 5:44 AM EDT
Completed Phase 4 Interventional Results available

Assessing the Efficacy of Maxidex® and Patanol® for the Treatment of Allergic Conjunctivitis

NCT01119287
View directory record Official record
Conditions
Allergic Conjunctivitis
Interventions
Dexamethasone 0.1% ophthalmic suspension, Olopatadine hydrochloride 0.1% ophthalmic solution, Inactive ingredients, used as placebo
Drug · Other
Lead sponsor
Alcon Research
Industry
Eligibility
18 Years to 64 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2014 · Synced Jul 23, 2026, 5:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Integrating Clinical Practice Guidelines for Smoking Cessation Into Mental Health Care for Veterans With Posttraumatic Stress Disorder

NCT00118534
View directory record Official record
Conditions
Mental Health, Stress Disorders, Post-Traumatic, Substance-Related Disorders, Tobacco Use Disorder
Interventions
Integrated Care for Smoking Cessation in PTSD patients, Standard of Care
Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 80 Years
Enrollment
943 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
11
States / cities
Tuscaloosa, Alabama • San Diego, California • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated May 4, 2014 · Synced Jul 23, 2026, 5:44 AM EDT
Recruiting No phase listed Observational

Multicenter Evaluation of Near Vision and Outdoor Time in Kids Study

NCT06119243
View directory record Official record
Conditions
Myopia
Interventions
Vivior
Device
Lead sponsor
The University of New South Wales
Other
Eligibility
4 Years to 14 Years
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Berkeley, California • Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Jul 23, 2026, 5:44 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Evaluation of Prototype for Simulation for Environmental Exposure Education (SE3)

NCT05875467
View directory record Official record
Conditions
Effect of Game in Increasing Environmental Health Literacy
Interventions
SE3 Game
Other
Lead sponsor
dfusion Inc
Industry
Eligibility
11 Years to 15 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
2
States / cities
San Jose, California • Scotts Valley, California
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Jul 23, 2026, 5:44 AM EDT
Withdrawn Not applicable Interventional

A Clinical Study Comparing the Comfort of Three Commercially Available Contact Lenses

NCT02298400
View directory record Official record
Conditions
Contact Lens Complication
Interventions
Acuvue® Oasys® Lenses (senofilcon A), 30-Day Bausch + Lomb PureVision (balafilcon A), Clariti® 1-Day (Somofilcon A)
Device
Lead sponsor
ORA, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Andover, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced Jul 23, 2026, 5:44 AM 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 1, 2017 · Synced Jul 23, 2026, 5:44 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 Jul 23, 2026, 5:44 AM 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 11, 2018 · Synced Jul 23, 2026, 5:44 AM EDT
Not yet recruiting Not applicable Interventional

Therapeutic Induction of Dermal Remodeling in Veterans to Prevent Actinic Neoplasia Caused by Chronic Environmental Exposure to Ultraviolet Radiation

NCT07648407
View directory record Official record
Conditions
Nonmelanoma Skin Cancer, Actinic Keratosis
Interventions
Microneedling, Trichloroacetic acid peel
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
2
States / cities
Indianapolis, Indiana • Dayton, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 23, 2026, 5:44 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 6, 2026 · Synced Jul 23, 2026, 5:44 AM EDT