Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Pulmonary Function clinical trials
2 of 4 indexed Pulmonary Function trials are currently recruiting.
Corpus placement: #4,115 of 28,707 conditions by registered trial count.
4 US clinical trials · 2 currently recruiting · #4,115 of 28,707 conditions by registered trial count
Pulmonary Function: 4 US clinical trials tracked, 2 recruiting.
Pulmonary Function is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. The most active sponsor is Oregon Health and Science University, running 2 of these trials.
Enrollment posture brief
Registry condition pulmonary-function
OPEN 2 | RECR 50% | LATE 0 | EARLY 0 | RANK #4115 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)
Pulmonary Function lists 2 open slots (50% of 4 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 Pulmonary Function 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.
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Pulmonary Function is recruiting above its size-band peers.
2 of 4 indexed trials (50%) 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.
Open and recent trials
4 total, page 1 of 1
Vitamin C to Decrease Effects of Smoking in Pregnancy on Infant Lung Function (VCSIP) Longer Term Follow Up
Oregon Health and Science University
NCT06106646
Asthma Intervention With Residential Ventilation and Air Cleaner (AIRVAC) Study
The University of Texas at Arlington
NCT07196436
LungVITamin D and OmegA-3 Trial (lungVITAL)
Brigham and Women's Hospital
NCT01728571
Vitamin C Supplementation to Pregnant Smokers: Follow-up of 2 Randomized Trials Plus Changes in DNA Methylation
Oregon Health and Science University
NCT03206710
Phase Distribution
Phase data not available
Top Sponsors
Named interventions
Most-linked intervention names on Pulmonary Function records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Pulmonary Function trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Pulmonary Function page
4 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Pulmonary Function trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Oregon Health and Science University sponsors the most Pulmonary Function trials on record, review their full trial history before evaluating a specific study. See Oregon Health and Science University's 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. This Pulmonary Function condition card totals 4 registered trials; most-linked intervention No current intervention; top US site state Oregon. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.