Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
PFO clinical trials
1 of 2 indexed PFO trials are currently recruiting.
Corpus placement: #7,188 of 28,707 conditions by registered trial count.
2 US clinical trials · 1 currently recruiting · #7,188 of 28,707 conditions by registered trial count
PFO: 2 US clinical trials tracked, 1 recruiting.
PFO is the subject of 2 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. The most active sponsor is Occlutech International AB, running 1 of these trials.
Enrollment posture brief
Registry condition pfo
OPEN 1 | RECR 50% | LATE 0 | EARLY 0 | RANK #7188 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)
PFO lists 1 open slots (50% of 2 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 PFO 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.
-
PFO is recruiting above its size-band peers.
1 of 2 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
2 total, page 1 of 1
Early Feasibility Study (EFS) Evaluating Percutaneous Repair of the Atrial Septum With a Novel PFO Occluder: The PROTEA-PFO Study
Recross Cardio
NCT07172464
Comparing PFO Outcomes of the Occlutech Flex II PFO Occluder to Standard of Care PFO Occlusion
Occlutech International AB
NCT05069558
Phase Distribution
Phase data not available
Top Sponsors
Named interventions
Most-linked intervention names on PFO records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on PFO 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 PFO page
2 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 PFO trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Occlutech International AB sponsors the most PFO trials on record, review their full trial history before evaluating a specific study. See Occlutech International AB'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 PFO condition card totals 2 registered trials; most-linked intervention Standard of Care PFO Closure Device; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.