National Institute of Environmental Health Sciences (NIEHS)
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 2 of 3
Parkinson's Genes and Environment Study
NCT00367900
Influence of Social and Environmental Factors on Women's Reproductive Function in a Maya Community of Guatemala
NCT00340782
Genetic Measurements in Blood Cells of Children Taking Adderall or Methylphenidate
NCT00341029
Studies of the Natural History and Pathogenesis of Autoimmune/Connective Tissue Diseases
NCT00341679
Pathogenesis and Genetics of Environmental Asthma Ozone Study
NCT00574158
Prospective Lung Transplant Database for Genetic Research
NCT00339209
Mechanisms of Lung Allograft Rejection
NCT00340418
Can Immune Parameters Predict Acute and Chronic Rejection in Lung Recipients?
NCT00340951
Dust Mite Allergen Reduction Study
NCT00339690
Children's Exposures/Health Effects/Diesel Exhaust
NCT00527345
Hormonal Changes in Early Pregnancy
NCT00340028
Cockroach Allergen Reduction by Extermination Alone in Low-Income, Urban Homes: A Randomized Control Trial
NCT00341445
Effects of Anti-HIV Therapy on Red Blood Cells of HIV-infected Mothers and Their Infants
NCT00342082
Diet and Genetic Damage
NCT00340743
Disease Progression and Activity in Patients With Systemic Lupus Erythematosus
NCT00339261
Effects of Infant Diets on Estrogen Activity and Development
NCT00340652
The Sister Study: Genetic and Environmental Risk Factors for Breast Cancer
NCT00047970
Exposure to Neurotoxins as Risk Factors for ALS
NCT00340301
Study of Infant Diets on Estrogen Activity and Development
NCT00340665
Nitric Oxide, LPS and the Pathogenesis of Asthma Phase 1
NCT00671229
Study of Families With Twins or Siblings Discordant for Rheumatic Disorders
NCT00055055
Organochlorine Exposure in Relation to Timing of Natural Menopause
NCT00353171
HOME Study (Health Outcomes and Measures of the Environment Study)
NCT00129324
MR Assessment of Brain Function Altered by Lead Exposure
NCT00283647
Prevention of Tumor Spread Due to Lung Cancer Surgery
NCT00341380
Exposure to Neurotoxins as Risk Factors for Amyotrophic Lateral Sclerosis
NCT00339976
Effect of Environmental Exposures on the Egg Fertilizing Ability of Human Sperm
NCT00012480
Reducing Farmworkers Exposure to Agricultural Chemicals
NCT00298649
Confirmation of Systemic Autoimmune Diseases in the Agricultural Health Study
NCT00341198
Healthy Environments Partnership
NCT00042263
Work and Health Disparities Among Rural Women
NCT00042419
Postpartum Uterine Regression
NCT00341848
Early Exposure to Lead and Adult Antisocial Outcomes
NCT00285610
Early Life Factors and Respiratory Health in Mexico City Children
NCT00342758
NIEHS/UNC Environmental Polymorphism Study
NCT00340886
Identifying Residential Hazards Using Home Test Kits
NCT00285532
Childhood Autism Risks From Genetics and the Environment (The CHARGE Study)
NCT00106652
Outdoor Allergen Exposure, Sensitivity, and Acute Asthma
NCT00043992
Gene-Environment Interaction in Prostate Cancer
NCT00041847
Fibroid Growth Study
NCT00340288
The Genetics of Environmental Asthma
NCT00018096
Oxidative Stress and Hemodialysis Access Failure
NCT00410449
Prevalence of a Non-Expressing 11B Mutation in Aka Peoples of the Central African Republic
NCT00340769
Lupus Nephritis: Role of Environmental and Occupational Exposures
NCT00342329
Socio-economic Status and Age-related Disability in a Biracial Community
NCT00042133
Farming and Movement Evaluation Study (FAME)
NCT00042120
Pesticide Exposure Pathways for Farmworker Children
NCT00013754
Environmental Factors in the Development of Polycystic Ovary Syndrome
NCT00341731
A Pilot Study to Evaluate the Efficacy of Refined Methods to Mitigate Indoor Allergens in North Carolina and Boston, Massachusetts Homes
NCT00344344
Parkinson's Diseases Susceptibility Genes and Pesticides
NCT00044590
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 2 |
| Phase 2 | 5 |
| Phase 3 | 3 |
Therapeutic Areas
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.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.