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ClinicalTrials.gov 4 recruiting now early-phase tilt small index

Environmental Exposure: early-phase trial registry

4 of 14 indexed Environmental Exposure trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,230 of 28,707 conditions by registered trial count.

14 US clinical trials · 4 currently recruiting · #1,230 of 28,707 conditions by registered trial count

Environmental Exposure: 14 US clinical trials tracked, 4 recruiting.

Environmental Exposure is the subject of 14 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is Oregon State University, running 2 of these trials.

Enrollment posture brief

Registry condition environmental-exposure

OPEN 4 | RECR 29% | LATE 1 | EARLY 2 | RANK #1230 | SPON 2

Nearest open-share peer: Acne Scars (29% recruiting · 7 trials)

Acute Respiratory Failure35.7%Adherence, Medication35.7%Environmental Exposure (this)29%Acromegaly28.6%Abscess7.1%
Open-enrollment share among volume-matched conditions near Environmental Exposure

Environmental Exposure lists 4 open slots (29% of 14 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Environmental Exposure on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Environmental Exposure is recruiting below its size-band peers.

    4 of 14 indexed trials (28.6%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Environmental Exposure trials is spread across many organizations.

    Oregon State University accounts for 2 of 14 trials (14.3%). 12 distinct sponsors appear on at least one study for this condition label.

  3. Most Environmental Exposure trials plan to enrol fewer than 100 people.

    Median target enrolment is 30 among the 14 trials that report a genuine target (sentinel values excluded). 9 of those (64.3%) plan for fewer than 100 participants.

  4. Environmental Exposure research is mostly interventional.

    13 interventional and 1 observational studies make up this index (92.9% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 12Phase 41

Open and recent trials

14 total, page 1 of 1

RECRUITING NA 1,800 participants

Childhood Activities Nutrition and Development Oversight

Northwestern University

NCT05258656

RECRUITING NA 400 participants

Assessing and Addressing Community Exposures to Environmental Contaminants

NYU Langone Health

NCT06315140

RECRUITING 40 participants

Developmental Impacts of Microplastics Exposure in Early Life

Johns Hopkins Bloomberg School of Public Health

NCT06107933

RECRUITING NA 20 participants

Table-Top Water Pitcher to Reduce Arsenic Exposure Among Well Users in New Hampshire

Trustees of Dartmouth College

NCT07103356

ACTIVE NOT RECRUITING NA 600 participants

A Personalized Biomonitoring and Report-back Intervention to Reduce Exposure to Endocrine Disrupting Chemicals

Million Marker Wellness

NCT06450951

ACTIVE NOT RECRUITING NA 571 participants

The IGNITE Study on Concentrated Investment in Black Neighborhoods

University of Pennsylvania

NCT05541653

ACTIVE NOT RECRUITING NA 221 participants

The IGNITE for Kids Study on Concentrated Investment in Black Neighborhoods and Child Health and Well-Being

University of Pennsylvania

NCT05760001

ACTIVE NOT RECRUITING NA 24 participants

Sleep Improvement Via Environmental Smart Temperature Adjustments

Hebrew SeniorLife

NCT06770400

COMPLETED NA 30 participants

Monitoring Environmental Exposures and Behavioral Change

University of Utah

NCT05338242

COMPLETED Phase 4 20 participants

PFAS Exposure and Immune Response to Vaccination in Adults

Rutgers, The State University of New Jersey

NCT06588530

COMPLETED NA 20 participants

Developing and Evaluating an Indoor Air Pollution Intervention Among Cardiovascular Patients: the AIRWISE Study

University of Montana

NCT06384625

COMPLETED NA 11 participants

Effects of BPA on Insulin and Glucose Responses

California Polytechnic State University-San Luis Obispo

NCT03444922

COMPLETED Early Phase 1 8 participants

Benzo[a]Pyrene Ultralow Dose-Response Study

Oregon State University

NCT03318978

COMPLETED Early Phase 1 8 participants

Ultralow Dose PAH Binary Mixture Study

Oregon State University

NCT03631667

Phase Distribution

PhaseTrial count
Phase 1 2
Phase 4 1

Named interventions

Most-linked intervention names on Environmental Exposure records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

[14C]-benzo[a]pyrene Drug
2 trials
AIRWISE Other
1 trials
Real-Time Exposure Feedback Device
1 trials
[14C]-benzo[a]pyrene plus phenanthrene Drug
1 trials
BPA 50 ug/kg BW Other
1 trials
BPA 4 ug/kg BW Other
1 trials
TENIVAC Biological
1 trials
Assigned Interventions Other
1 trials

US sites by state

Facility locations filed on Environmental Exposure trials. A trial with sites in several states counts in each.

Pennsylvania 2 trials
Oregon 2 trials
Utah 1 trials
New York 1 trials
Nevada 1 trials
New Jersey 1 trials
New Hampshire 1 trials
Montana 1 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Environmental Exposure page

14 registered trials, 4 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

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. This Environmental Exposure condition card totals 14 registered trials; most-linked intervention [14C]-benzo[a]pyrene; top US site state Pennsylvania. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.