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ClinicalTrials.gov public records Last synced Oct 10, 2026, 8:30 PM EDT

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Showing 73–96 of 258 matching trials from the live ClinicalTrials.gov search.
Filters: Sponsor: National Institute of Environmental Health Sciences (NIEHS) Clear all
Completed No phase listed Observational

Postpartum Uterine Regression

NCT00341848
View directory record Official record
Conditions
Uterine Leiomyoma
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
374 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2019
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 17, 2019 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Early Exposure to Lead and Adolescent Development

NCT00011674
View directory record Official record
Conditions
Lead Poisoning
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
0 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2001
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2006 · Synced Oct 10, 2026, 8:30 PM 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 11, 2020 · Synced Oct 10, 2026, 8:30 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Environmental Risk Factors for the Anti-synthetase Syndrome

NCT01276470
View directory record Official record
Conditions
Myositis, Dermatomyositis, Polymyositis, Juvenile Dermatomyositis, Juvenile Polymyositis
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
2 Years to 100 Years
Enrollment
580 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
8
States / cities
Miami, Florida • Baltimore, Maryland • Bethesda, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Dichloroacetate Kinetics, Metabolism and Toxicology

NCT00015015
View directory record Official record
Conditions
Lactic Acidosis
Interventions
Dichloroacetate
Drug
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
3 Months to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1994 – 2002
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 4, 2006 · Synced Oct 10, 2026, 8:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect Of Obesity On Ozone-Induced Airway Inflammation

NCT00839943
View directory record Official record
Conditions
Obesity
Interventions
ozone, 0.4 ppm
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2012 · Synced Oct 10, 2026, 8:30 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

NIEHS Repository of Stored Biological Samples for Future Use

NCT05666739
View directory record Official record
Conditions
Normal Physiology
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 100 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2032
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational

Air Pollution and Implantable Cardioverter Defibrillators

NCT00015574
View directory record Official record
Conditions
Arrythmias
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
0 Years to 90 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 4, 2006 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational

Mechanisms of Lung Allograft Rejection

NCT00340418
View directory record Official record
Conditions
Lung Transplant, Chronic Allograft Rejection
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
Durham, North Carolina • Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 10, 2026, 8:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Prevention of Paralytic Shellfish Poisoning in Subsistence Shellfish Harvest Communities of Southeast Alaska

NCT05247229
View directory record Official record
Conditions
Shellfish Poisoning, Paralytic
Interventions
Middle school education program
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
3
States / cities
Hoonah, Alaska • Juneau, Alaska • Sitka, Alaska
Source: ClinicalTrials.gov public record
Updated Oct 3, 2025 · Synced Oct 10, 2026, 8:30 PM 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 6, 2018 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Influence of Social and Environmental Factors on Women's Reproductive Function in a Maya Community of Guatemala

NCT00340782
View directory record Official record
Conditions
Early Pregnancy
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
16 Years to 42 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
2
States / cities
Ann Arbor, Michigan • Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Serological Surveillance for COVID-19 in Central North Carolina

NCT04490174
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 100 Years
Enrollment
643 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 10, 2026, 8:30 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Role of Macrophage Activation in Lung Injury Following Ozone Exposure

NCT05794087
View directory record Official record
Conditions
Air Pollution
Interventions
Clean Air, Ozone
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 10, 2026, 8:30 PM EDT
Recruiting No phase listed Observational

Observation of Environment and Reproductive-Endocrine Effects

NCT06280807
View directory record Official record
Conditions
Hypogonadism, Hypergonadism, Precocious Puberty, Late Puberty, Amenorrhea
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
8 Years to 99 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2039
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational

Stachybotrys Induced Hemorrhage in the Developing Lung

NCT00011700
View directory record Official record
Conditions
Idiopathic Pulmonary Hemorrhage
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
3 Days to 12 Months
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2009
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Understanding Fish Consumption Habits During Pregnancy

NCT01178398
View directory record Official record
Conditions
Nutrition
Interventions
Not listed
Lead sponsor
Harvard Pilgrim Health Care
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational

Cardiac Vulnerability in Potentially Susceptible Patients

NCT00012493
View directory record Official record
Conditions
Heart Disease
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
45 Years to 74 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 4, 2006 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational

Oxidative Stress and Hemodialysis Access Failure

NCT00410449
View directory record Official record
Conditions
End Stage Renal Disease, Hemodialysis
Interventions
Alpha tocopherol
Drug
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
21 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 6, 2015 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Ozone and Rhinovirus-Induced Disease in Asthmatics

NCT00013715
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2003
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 11, 2008 · Synced Oct 10, 2026, 8:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Reducing Pesticide Exposures in Child Care Centers

NCT03319927
View directory record Official record
Conditions
Children, Only, Risk Reduction, Environmental Exposure
Interventions
Changes in pesticide exposure, IPM Practices, Educational Workshops
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
3 Years to 75 Years
Enrollment
987 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 10, 2026, 8:30 PM EDT
Completed No phase listed Observational

Biomarker Analysis of Stress

NCT00527384
View directory record Official record
Conditions
Sepsis
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Oct 10, 2026, 8:30 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Inhalation of 20,000 Endotoxin Units(EU) of Clinical Center Reference Endotoxin in Healthy Volunteers

NCT00654134
View directory record Official record
Conditions
Healthy Adults
Interventions
Clinical Center Reference Endotoxin
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2013
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 9, 2013 · Synced Oct 10, 2026, 8:30 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 23, 2025 · Synced Oct 10, 2026, 8:30 PM EDT