Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Idiopathic Pulmonary Arterial Hypertension: early-phase trial registry
4 of 4 indexed Idiopathic Pulmonary Arterial Hypertension trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #4,115 of 28,707 conditions by registered trial count.
4 US clinical trials · 4 currently recruiting · #4,115 of 28,707 conditions by registered trial count
Idiopathic Pulmonary Arterial Hypertension: 4 US clinical trials tracked, 4 recruiting.
Idiopathic Pulmonary Arterial Hypertension is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is Vanderbilt University Medical Center, running 3 of these trials.
Enrollment posture brief
Registry condition idiopathic-pulmonary-arterial-hypertension
OPEN 4 | RECR 100% | LATE 0 | EARLY 1 | RANK #4115 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Aortic Arch Aneurysm (100% recruiting · 5 trials)
Idiopathic Pulmonary Arterial Hypertension lists 4 open slots (100% 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 Idiopathic Pulmonary Arterial Hypertension 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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Idiopathic Pulmonary Arterial Hypertension is recruiting above its size-band peers.
4 of 4 indexed trials (100%) 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
Hormonal, Metabolic, and Signaling Interactions in PAH
Vanderbilt University Medical Center
NCT01884051
Risk and Resilience in Pulmonary Arterial Hypertension and Genetically Susceptible Individuals
Vanderbilt University Medical Center
NCT05584722
Right Ventricle Lipid in Pulmonary Arterial Hypertension (PAH)
Vanderbilt University Medical Center
NCT05462574
129 Xenon MRI as a Biomarker for Diagnosis and Response to Therapy in Pulmonary Arterial Hypertension (PAH)
Bastiaan Driehuys
NCT06104228
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Idiopathic Pulmonary Arterial Hypertension records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Idiopathic Pulmonary Arterial Hypertension 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 Idiopathic Pulmonary Arterial Hypertension page
4 registered trials, 4 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 4 Idiopathic Pulmonary Arterial Hypertension trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Vanderbilt University Medical Center sponsors the most Idiopathic Pulmonary Arterial Hypertension trials on record, review their full trial history before evaluating a specific study. See Vanderbilt University Medical Center'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 Idiopathic Pulmonary Arterial Hypertension condition card totals 4 registered trials; most-linked intervention 129Xe Hyperpolarized; top US site state Tennessee. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.