{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=WATCHMAN",
    "query": {
      "intervention": "WATCHMAN"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 32,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=WATCHMAN&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T15:48:58.531Z",
  "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": "NCT02928497",
      "title": "Assessment of the WATCHMAN™ Device in Patients Unsuitable for Oral Anticoagulation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke"
      ],
      "interventions": [
        {
          "name": "WATCHMAN LAAC Device Implant",
          "type": "DEVICE"
        },
        {
          "name": "Single Antiplatelet Therapy or No Therapy (Control)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 481,
      "start_date": "2017-02-06",
      "completion_date": "2025-09-23",
      "has_results": true,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 71,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 65 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02928497"
    },
    {
      "nct_id": "NCT01760291",
      "title": "Continued Access to PREVAIL (CAP2) - WATCHMAN Left Atrial Appendage (LAA) Closure Technology",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "WATCHMAN LAA Closure Technology",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 576,
      "start_date": "2012-09",
      "completion_date": "2019-04",
      "has_results": true,
      "last_update_posted_date": "2022-03-29",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 3,
      "location_summary": "Phoenix, Arizona • Lexington, Kentucky • New York, New York",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01760291"
    },
    {
      "nct_id": "NCT03088072",
      "title": "A Pilot Study of Edoxaban in Patients With Non-Valvular Atrial Fibrillation and Left Atrial Appendage Closure",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Non-Valvular Atrial Fibrillation",
        "Left Atrial Appendage Closure"
      ],
      "interventions": [
        {
          "name": "Edoxaban",
          "type": "DRUG"
        },
        {
          "name": "WATCHMAN LAA Closure",
          "type": "DEVICE"
        },
        {
          "name": "Aspirin and Clopidogrel",
          "type": "DRUG"
        },
        {
          "name": "Aspirin and Warfarin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Scripps Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2017-03-23",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2017-07-11",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03088072"
    },
    {
      "nct_id": "NCT03173534",
      "title": "WATCH-TAVR, WATCHMAN for Patients With Atrial Fibrillation Undergoing Transcatheter Aortic Valve Replacement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Aortic Valve Stenosis"
      ],
      "interventions": [
        {
          "name": "WATCHMAN",
          "type": "DEVICE"
        },
        {
          "name": "TAVR",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "samir kapadia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 350,
      "start_date": "2017-12-15",
      "completion_date": "2022-12-06",
      "has_results": true,
      "last_update_posted_date": "2024-05-22",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 32,
      "location_summary": "Phoenix, Arizona • Burlingame, California • Santa Barbara, California + 27 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Burlingame",
          "state": "California"
        },
        {
          "city": "Santa Barbara",
          "state": "California"
        },
        {
          "city": "Loveland",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03173534"
    },
    {
      "nct_id": "NCT06075628",
      "title": "Long-Term Outcomes of LAA Contrast Flow in CT Scans After Endocardial LAA Closure: The CF-CT Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Atrial Fibrillation",
        "Ischemic Stroke, Acute"
      ],
      "interventions": [
        {
          "name": "Left Atrial Appendage Occlusion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Kansas City Heart Rhythm Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2023-07-24",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2025-08-28",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06075628"
    },
    {
      "nct_id": "NCT06007872",
      "title": "Intracardiac Echocardiography Guided Watchman Device Implant",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Left Atrial Appendage Thrombosis"
      ],
      "interventions": [
        {
          "name": "Intracardiac Echocardiography (ICE)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2022-12-02",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-10-21",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06007872"
    },
    {
      "nct_id": "NCT07041125",
      "title": "Concomitant LAAC/AF Ablation (Watchman FLX Pro)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "PFA Ablation and LAAC Procedures"
      ],
      "interventions": [
        {
          "name": "Watchman FLX™ Pro device.",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Heart Rhythm Clinical and Research Solutions, LLC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 122,
      "start_date": "2025-06-01",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • San Francisco, California • Littleton, Colorado + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Littleton",
          "state": "Colorado"
        },
        {
          "city": "Delray Beach",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07041125"
    },
    {
      "nct_id": "NCT06052358",
      "title": "Left Atrial Appendage Closure With WATCHMAN FLX Device in Recurrent Gastrointestinal Bleeding: The GI-FLX Registry",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Atrial Fibrillation",
        "GI Bleeding"
      ],
      "interventions": [
        {
          "name": "LAAC with Watchman FLX device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Kansas City Heart Rhythm Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 73,
      "start_date": "2023-08-23",
      "completion_date": "2025-06-11",
      "has_results": false,
      "last_update_posted_date": "2025-09-04",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 4,
      "location_summary": "Overland Park, Kansas • Kansas City, Missouri",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06052358"
    },
    {
      "nct_id": "NCT07705425",
      "title": "EPX-HTG for Structural Heart Procedures",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation (AF)",
        "Mitral Valve (MV) Regurgitation"
      ],
      "interventions": [
        {
          "name": "Left Atrial Appendage Occlusion",
          "type": "DEVICE"
        },
        {
          "name": "Mitral Valve Transcatheter Edge to Edge Repair",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EchoPixel, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2026-08-03",
      "completion_date": "2027-10-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07705425"
    },
    {
      "nct_id": "NCT05809596",
      "title": "HEAL-LAA Clinical Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Bleeding",
        "Stroke"
      ],
      "interventions": [
        {
          "name": "WATCHMAN FLX Pro LAAC Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 949,
      "start_date": "2023-10-03",
      "completion_date": "2025-09-18",
      "has_results": true,
      "last_update_posted_date": "2025-11-04",
      "last_synced_at": "2026-09-02T15:48:58.531Z",
      "location_count": 45,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 39 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05809596"
    }
  ]
}