{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cardiac+Resynchronization+Therapy+Pacemaker&page=2",
    "query": {
      "intervention": "Cardiac Resynchronization Therapy Pacemaker",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cardiac+Resynchronization+Therapy+Pacemaker&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-20T17:01:27.186Z",
  "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": "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      "overall_status": "WITHDRAWN",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": "2026-09-20T17:01:27.186Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03232450"
    },
    {
      "nct_id": "NCT02783716",
      "title": "Vascular Endothelial Function and Cardiac Resynchronization Response in Patients With Heart Failure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Subcutaneous adipose tissue collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Peripheral arterial tonometry (PAT)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2016-05",
      "completion_date": "2021-07-20",
      "has_results": false,
      "last_update_posted_date": "2023-01-18",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02783716"
    },
    {
      "nct_id": "NCT00289302",
      "title": "InSync Implantable Cardioverter Defibrillator Registry: Cardiac Resynchronization Therapy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure",
        "Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "Cardiac resynchronization therapy device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2003-01",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2007-10-05",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 51,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 48 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00289302"
    },
    {
      "nct_id": "NCT01735916",
      "title": "MIRACLE EF Clinical Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congestive Heart Failure",
        "Left Bundle Branch Block",
        "Systolic Heart Failure"
      ],
      "interventions": [
        {
          "name": "CRT-P Implant",
          "type": "DEVICE"
        },
        {
          "name": "CRT-P OFF",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2012-12",
      "completion_date": "2014-03",
      "has_results": true,
      "last_update_posted_date": "2017-11-06",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 69,
      "location_summary": "Concord, California • La Jolla, California • Los Angeles, California + 62 more",
      "locations": [
        {
          "city": "Concord",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Rancho Mirage",
          "state": "California"
        },
        {
          "city": "Thousand Oaks",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01735916"
    },
    {
      "nct_id": "NCT00674128",
      "title": "Comparison of Cyanoacrylate Tissue Adhesive and Suture for Closure of Cardiac Device Pockets",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Cyanoacrylate tissue adhesive (Dermabond)",
          "type": "DEVICE"
        },
        {
          "name": "Polyglactin 910 suture (Vicryl)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 103,
      "start_date": "2008-05",
      "completion_date": "2009-05",
      "has_results": true,
      "last_update_posted_date": "2010-12-29",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00674128"
    },
    {
      "nct_id": "NCT02700425",
      "title": "His Bundle Pacing Versus Coronary Sinus Pacing for Cardiac Resynchronization Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "CRT Pacemaker",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 41,
      "start_date": "2016-05-17",
      "completion_date": "2020-07-31",
      "has_results": true,
      "last_update_posted_date": "2021-09-05",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • Chicago, Illinois • Naperville, Illinois + 3 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Naperville",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02700425"
    },
    {
      "nct_id": "NCT00205192",
      "title": "Optimizing Cardiac Resynchronization",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Cardiac resynchronization pacing",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 100,
      "start_date": "2004-06",
      "completion_date": "2011-12",
      "has_results": false,
      "last_update_posted_date": "2012-08-29",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00205192"
    },
    {
      "nct_id": "NCT03564860",
      "title": "HBP Device EGM Data Collection",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sick Sinus Syndrome",
        "AV Block",
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Device data collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2018-07-17",
      "completion_date": "2020-09-30",
      "has_results": false,
      "last_update_posted_date": "2020-10-08",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 3,
      "location_summary": "Huntsville, Alabama • Sayre, Pennsylvania • Greenville, South Carolina",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Sayre",
          "state": "Pennsylvania"
        },
        {
          "city": "Greenville",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03564860"
    },
    {
      "nct_id": "NCT01008670",
      "title": "Identification of the Pericardiophrenic Vein During Cardiac Device Implant Procedures to Prevent Extracardiac Stimulation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Respicardia, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 120,
      "start_date": "2007-12",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2010-11-24",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • Baltimore, Maryland • Cincinnati, Ohio + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01008670"
    },
    {
      "nct_id": "NCT04831125",
      "title": "Conduction System Pacing International Registry (CONSPIRE)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bradyarrhythmia",
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Data collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 383,
      "start_date": "2021-04-04",
      "completion_date": "2026-02-05",
      "has_results": false,
      "last_update_posted_date": "2026-03-03",
      "last_synced_at": "2026-09-20T17:01:27.186Z",
      "location_count": 5,
      "location_summary": "Tucson, Arizona • Chicago, Illinois • New York, New York + 2 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Wilkes-Barre",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04831125"
    }
  ]
}