National Institute of Environmental Health Sciences (NIEHS)

145 total trials 15 currently recruiting 124 completed

National Institute of Environmental Health Sciences (NIEHS) sponsors 145 registered US clinical trials on ClinicalTrials.gov, 15 of them currently recruiting, and 124 completed. 3 of these trials are in Phase 3-4 (later-stage) and 7 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Asthma, with 8 trials.

Trial Pipeline

145 total, page 3 of 3

COMPLETED

Molecular Epidemiology of Parkinson's Disease

NCT00042107

COMPLETED NA

Nasal Irritation Study: Individual Factors in Nasal Irritant Sensitivity

NCT00041821

COMPLETED

Brain Neoplasms, Leukemia and Petrochemical Exposures

NCT00042445

COMPLETED NA

Reducing Pesticide Exposure in Minority Families

NCT00014807

COMPLETED

Incidence and Mortality of Childhood Cancer Among Children of Farmer Pesticide Applications

NCT00339378

COMPLETED NA

Social Network Based Intervention to Reduce Lead Exposure Among Native American Children

NCT00011661

COMPLETED

Asthma Severity in Children and Environmental Agents

NCT00042705

COMPLETED

Role of the Toxic Metal Cadmium in the Mechanism Producing Infertility With a Varicocele

NCT00044369

COMPLETED

Vulnerability of the Fetus/Infant to PAH, PM2.5 AND ETS.

NCT00044603

COMPLETED

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

NCT00011713

COMPLETED

Cardiac Vulnerability in Potentially Susceptible Patients

NCT00012493

COMPLETED NA

Effects of Pesticide Exposure on Neurodevelopment/Growth/Respiratory Health

NCT00021658

COMPLETED

Study for Future Families

NCT00011687

COMPLETED

Ozone and Rhinovirus-Induced Disease in Asthmatics

NCT00013715

COMPLETED

Fluorescence Bronchoscopy and Molecular Characterization of Abnormal Bronchial Lesions: Novel Approaches for Early Detection of Lung Cancer in High Risk Patients

NCT00512642

COMPLETED

Collaborative Study of 1,3 Butadiene Biomarkers

NCT00023140

COMPLETED

Attention Deficit Disorder and Exposure to Lead

NCT00014898

COMPLETED

Cardiopulmonary Effects of Particulate Exposure

NCT00011310

COMPLETED

Pesticide Exposure and Health Status in North Carolina African American Male Farmers and Farm Workers

NCT00341965

COMPLETED

Stachybotrys Induced Hemorrhage in the Developing Lung

NCT00011700

COMPLETED

Pollutant Altered Allergic Responses

NCT00011440

COMPLETED

Air Pollution and Implantable Cardioverter Defibrillators

NCT00015574

COMPLETED

Lead Exposure, Genetics, and Osteoporosis Epidemiology

NCT00013637

COMPLETED

Cardiovascular Vulnerability to Particulate Exposure

NCT00013949

COMPLETED

Ozone Exposure and Dose Delivered to Human Lungs

NCT00013780

COMPLETED

Protection Against Benzene Toxicity

NCT00011453

COMPLETED

National Survey of Lead and Allergen Hazards in Housing

NCT00339573

COMPLETED

Bladder Cancer Case Control Study of Arsenic in Water

NCT00011518

COMPLETED NA

Community-Based Environmental Health Intervention

NCT00015600

COMPLETED

Health Effects of Early-Life Exposure to Urban Pollutants in Minority Children

NCT00043498

COMPLETED

Johnston County ADHD Study: Environmental, Reporductive, and Familial Risk Factors for Attention-Deficit Hyperactivity Disorder (ADHD)

NCT00339729

COMPLETED

Early Exposure to Lead and Adolescent Development

NCT00011674

COMPLETED

Hormonal and Environmental Risk Factors for Developing Systemic Lupus Erythematosus: The Carolina Lupus (CLU) Study

NCT00342095

COMPLETED

Pesticides--Health Fertility and Reproductive Risk

NCT00015561

COMPLETED

Risk Factors for Uterine Fibroids: A Case Control Study

NCT00339547

COMPLETED

Molecular Epidemiology of Childhood Leukemia (Aka The California Childhood Leukemia Study)

NCT00015587

COMPLETED

Dichloroacetate Kinetics, Metabolism and Toxicology

NCT00015015

COMPLETED Phase 3

Treatment of Lead-Exposed Children Trial

NCT00342849

COMPLETED

Estrogen Receptor Gene Mutations

NCT00342498

COMPLETED

Mechanisms of Inflammatory Liver Injury

NCT00011284

COMPLETED

Biomarkers of Benzene Exposure in Inner City Residents

NCT00014963

COMPLETED Phase 3

Nevada Environmental Tobacco Smoke and Health Study

NCT00046306

COMPLETED NA

Reducing Indoor Allergen Exposures in Northern Manhattan and the South Bronx

NCT00023127

COMPLETED

Mohawk Culture, Behavior, Toxicant Exposure and Health

NCT00043238

COMPLETED NA

Community Organizing Network for Environmental Health

NCT00042484

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Phase Distribution

PhaseTrial count
Phase 1 2
Phase 2 5
Phase 3 3

What the Pipeline for National Institute of Environmental Health Sciences (NIEHS) Shows

According to the ClinicalTrials.gov registry, National Institute of Environmental Health Sciences (NIEHS) is linked to 145 US clinical trials across every stage of research activity. Of those, 15 studies are currently recruiting, about 10% of the sponsor's indexed portfolio, and 124 are already marked complete, representing roughly 86% of the total.

The phase mix for National Institute of Environmental Health Sciences (NIEHS) reports 3 late-stage studies (Phase 3 and Phase 4 combined) and 7 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for National Institute of Environmental Health Sciences (NIEHS) is Asthma with 8 linked trials, and 9 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.