Environmental Protection Agency (EPA)

Closed portfolio snapshot

According to ClinicalTrials.gov-derived indexes, Environmental Protection Agency (EPA) sits in the top decile of US sponsors by registered trial count (#1,458 of 15,742 sponsors by registered trial count).

9 total trials none currently recruiting 9 completed top decile by trial count

Environmental Protection Agency (EPA): 9 sponsored US clinical trials, none currently recruiting.

Environmental Protection Agency (EPA) sponsors 9 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 9 completed. The most-studied condition in this pipeline is Healthy, with 1 trials.

Top-decile sponsor footprint

Environmental Protection Agency (EPA) ranks in the top decile of sponsors by registered trial count (#1,458 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Indexed trials (enrollment closed)

9 total, page 1 of 1

COMPLETED NA

Responses to Exposure to Low Levels of Concentrated Ambient Particles in Healthy Young Adults

NCT03232086
COMPLETED NA

The Interaction of Social Factors With Air Pollution

NCT02206750
COMPLETED NA

Effects of Sequential Exposure to Nitrogen Dioxide and Ozone in Healthy Adult Human Volunteers.

NCT02133586
COMPLETED NA

Epigenetic Effect Modifications With Ozone Exposure on Healthy Volunteers

NCT02469428
COMPLETED NA

Interaction Effects of Temperature and Ozone

NCT01981135
COMPLETED NA

Cardiopulmonary Responses to Exposure to Ozone and Diesel Exhaust

NCT01874834
COMPLETED NA

Epigenetic Effects of Diesel Exhaust and Ozone Exposure

NCT01492517
COMPLETED NA

Cardioprotective Effects of Omega-3 Fatty Acids Supplementation in Healthy Older Subjects Exposed to Air Pollution Particles

NCT01442480
COMPLETED

Cardiovascular Effects of Incremental Diesel Exhaust Inhalation in Middle-Aged Healthy GSTM1 Null Human Volunteers

NCT01548625

Therapeutic Areas

Healthy 1

How the Environmental Protection Agency (EPA) archive is shaped

9 indexed studies, none listed as recruiting (0% open); 9 completed (100%).

Phase labels are sparse on this sponsor index, so phase mix is not charted here.

Top condition: Healthy (1 trial), 0 others listed.

How to read a closed sponsor archive

When recruiting_count is zero, the indexed set is completed or otherwise not open. Phase tilt still describes where archived studies sat on the investigational pathway. Re-check ClinicalTrials.gov before acting.

Environmental Protection Agency (EPA): archived-pipeline peers nationwide

Peers matched on 9 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

Environmental Protection Agency (EPA) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 051015 0%10%20%30%40%50% Total trials Recruiting share Environmental Protection Agency (EPA)4D Molecular Therapeutics9 Meters BiopharmaAadi BioscienceAblynx, a Sanofi company10xBio22nd Century Group23andMe3-C Institute for Social Development
Environmental Protection Agency (EPA) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Environmental Protection Agency (EPA) sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 9 archived trials

Sponsors with similar archive density (± trial count)

Related

Read our methodology - how this data is sourced, computed, and verified.

What to do with this Environmental Protection Agency (EPA) page

9 registered trials is a research-attention snapshot, not an endorsement of Environmental Protection Agency (EPA) or any single study.

  • None of Environmental Protection Agency (EPA)'s trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
  • Healthy is the condition Environmental Protection Agency (EPA) studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Healthy trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. Environmental Protection Agency (EPA) pipeline card: 9 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.