{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Patent+Foramen+Ovale+%28PFO%29",
    "query": {
      "condition": "Patent Foramen Ovale (PFO)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 24,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Patent+Foramen+Ovale+%28PFO%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T06:04:49.923Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT07172464",
      "title": "Early Feasibility Study (EFS) Evaluating Percutaneous Repair of the Atrial Septum With a Novel PFO Occluder: The PROTEA-PFO Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PFO",
        "PFO - Patent Foramen Ovale",
        "Cryptogenic Stroke",
        "Patent Foramen Ovale",
        "PFO-associated Stroke"
      ],
      "interventions": [
        {
          "name": "Recross P3 Occluder (P3O) System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Recross Cardio, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2025-10-09",
      "completion_date": "2031-02",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Gainesville, Florida • Boston, Massachusetts + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Greenville",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07172464"
    },
    {
      "nct_id": "NCT03309332",
      "title": "AMPLATZER PFO Occluder Post Approval Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke",
        "Patent Foramen Ovale"
      ],
      "interventions": [
        {
          "name": "AMPLATZER™ PFO Occluder",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 1214,
      "start_date": "2018-01-31",
      "completion_date": "2030-02-05",
      "has_results": false,
      "last_update_posted_date": "2026-03-11",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 78,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 63 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03309332"
    },
    {
      "nct_id": "NCT00859885",
      "title": "International PFO Consortium",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stroke",
        "Transient Ischemic Attack"
      ],
      "interventions": [
        {
          "name": "Antithrombotic treatment",
          "type": "DRUG"
        },
        {
          "name": "percutaneous device closure of PFO",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Insel Gruppe AG, University Hospital Bern",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1500,
      "start_date": "2008-09-08",
      "completion_date": "2021-12",
      "has_results": false,
      "last_update_posted_date": "2017-12-12",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts • Springfield, Massachusetts • Tyler, Texas",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Springfield",
          "state": "Massachusetts"
        },
        {
          "city": "Tyler",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00859885"
    },
    {
      "nct_id": "NCT05537753",
      "title": "Encore PFO Closure Device - The PerFOrm Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patent Foramen Ovale",
        "Cryptogenic Stroke"
      ],
      "interventions": [
        {
          "name": "Encore PFO closure device",
          "type": "DEVICE"
        },
        {
          "name": "FDA-approved PFO closure device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Encore Medical Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 500,
      "start_date": "2023-07-12",
      "completion_date": "2030-10",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 8,
      "location_summary": "Little Rock, Arkansas • La Jolla, California • Tampa, Florida + 5 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "West Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05537753"
    },
    {
      "nct_id": "NCT07629635",
      "title": "Migraine Headaches Elimination With Patent Foramen Ovale-Directed Therapy",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Migraine Disease",
        "Patent Foramen Ovale"
      ],
      "interventions": [
        {
          "name": "Prasugrel 5mg",
          "type": "DRUG"
        },
        {
          "name": "Transcatheter Closure of Patent Foramen Ovale",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 32,
      "start_date": "2026-09-01",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07629635"
    },
    {
      "nct_id": "NCT00442364",
      "title": "Safety Study of Varisolve® Procedure for Treatment of Varicose Veins in Patients With Right-to-left Cardiac Shunt",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Varicose Veins"
      ],
      "interventions": [
        {
          "name": "Polidocanol (1%) Microfoam (Varisolve)",
          "type": "DRUG"
        },
        {
          "name": "Endovenous Microfoam Occlusion",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 60,
      "start_date": "2007-03",
      "completion_date": "2009-08",
      "has_results": true,
      "last_update_posted_date": "2021-04-21",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Durham, North Carolina • Winston-Salem, North Carolina + 4 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00442364"
    },
    {
      "nct_id": "NCT03232450",
      "title": "Patent Foramen Ovale (PFO) Closure at the Time of Endovascular Cardiac Electronic Device Implantation",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Foramen Ovale, Patent"
      ],
      "interventions": [
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Cardiovascular Implantable Device (CIED)",
          "type": "DEVICE"
        },
        {
          "name": "Gore Cardioform Septal Occluder",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2019-08",
      "completion_date": "2023-12",
      "has_results": false,
      "last_update_posted_date": "2020-03-13",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03232450"
    },
    {
      "nct_id": "NCT00983723",
      "title": "Clinical Proteomic Research for the Brain",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ischemic Brain Injury",
        "Stroke",
        "Healthy Individual",
        "Patent Foramen Ovale (PFO)",
        "Neurovascular Injury"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 750,
      "start_date": "2005-07",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2013-05-23",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00983723"
    },
    {
      "nct_id": "NCT05069558",
      "title": "Comparing PFO Outcomes of the Occlutech Flex II PFO Occluder to Standard of Care PFO Occlusion",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke",
        "Patent Foramen Ovale",
        "PFO"
      ],
      "interventions": [
        {
          "name": "Investigational PFO Closure Device",
          "type": "DEVICE"
        },
        {
          "name": "Standard of Care PFO Closure Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Occlutech International AB",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 450,
      "start_date": "2022-05-09",
      "completion_date": "2029-11",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 27,
      "location_summary": "Phoenix, Arizona • Stanford, California • Thousand Oaks, California + 20 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Thousand Oaks",
          "state": "California"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Littleton",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05069558"
    },
    {
      "nct_id": "NCT00267371",
      "title": "ESCAPE Migraine Trial",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Migraine Disorders",
        "Heart Septal Defects, Atrial"
      ],
      "interventions": [
        {
          "name": "PFO Closure with Premere investigational device.",
          "type": "DEVICE"
        },
        {
          "name": "Medical management/current medications per standard of care by personal physician.",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 168,
      "start_date": "2005-11",
      "completion_date": "2012-03",
      "has_results": false,
      "last_update_posted_date": "2019-02-04",
      "last_synced_at": "2026-06-10T06:04:49.923Z",
      "location_count": 37,
      "location_summary": "Scottsdale, Arizona • Newport Beach, California • Sacramento, California + 31 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00267371"
    }
  ]
}