{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cardiac+Resynchronization+Therapy&page=2",
    "query": {
      "intervention": "Cardiac Resynchronization Therapy",
      "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&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-16T07:52:43.824Z",
  "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": "NCT00359372",
      "title": "Predicting Response to Cardiac Resynchronization Therapy in Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure",
        "Left Ventricular Dysfunction"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 180,
      "start_date": "2006-07-28",
      "completion_date": "2007-05-29",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 3,
      "location_summary": "Baltimore, Maryland • Bethesda, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00359372"
    },
    {
      "nct_id": "NCT02682251",
      "title": "Engaging Patients in Heart Failure Management",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "PHR Messaging",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Parkview Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2016-02",
      "completion_date": "2019-10-05",
      "has_results": false,
      "last_update_posted_date": "2019-10-30",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 1,
      "location_summary": "Fort Wayne, Indiana",
      "locations": [
        {
          "city": "Fort Wayne",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02682251"
    },
    {
      "nct_id": "NCT00794183",
      "title": "A Pilot Study Comparing the Programmed Delay Between the Atrial and Ventricle Interval",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "CRT device settings",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2004-06",
      "completion_date": "2010-11",
      "has_results": false,
      "last_update_posted_date": "2012-06-26",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00794183"
    },
    {
      "nct_id": "NCT00453622",
      "title": "RISK Stratification Using a Combination of Cardiac Troponin T and Brain Natriuretic Peptide in Patients Receiving CRT-D",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Cardiac Resynchronization Therapy-Defibrillator",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 222,
      "start_date": "2005-11",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2019-02-04",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00453622"
    },
    {
      "nct_id": "NCT02946853",
      "title": "Junctional AV Ablation in CRT-D: JAVA-CRT",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Systolic Heart Failure",
        "Atrial Fibrillation (Permanent)"
      ],
      "interventions": [
        {
          "name": "Atrioventricular junctional (AVJ) ablation",
          "type": "PROCEDURE"
        },
        {
          "name": "Cardiac resynchronization therapy - defibrillator",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2016-10-01",
      "completion_date": "2020-08-31",
      "has_results": true,
      "last_update_posted_date": "2022-01-25",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 21,
      "location_summary": "Little Rock, Arkansas • Pasadena, California • Atlanta, Georgia + 16 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02946853"
    },
    {
      "nct_id": "NCT00370474",
      "title": "MAGNET CRT Feasibility - Efficiency of LV Lead Placement Comparing Conventional vs. Magnetic Guidance",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cardiac Resynchronization Therapy"
      ],
      "interventions": [
        {
          "name": "Bi-ventricular lead placement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stereotaxis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2006-06",
      "completion_date": "2006-09",
      "has_results": false,
      "last_update_posted_date": "2007-06-18",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 6,
      "location_summary": "Gainesville, Georgia • Lexington, Kentucky • Boston, Massachusetts + 3 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Georgia"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Tyler",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00370474"
    },
    {
      "nct_id": "NCT04561778",
      "title": "HIS-Purkinje Conduction System Pacing Optimized Trial of Cardiac Resynchronization Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure，Congestive",
        "Cardiomyopathies",
        "Left Ventricular Dysfunction"
      ],
      "interventions": [
        {
          "name": "HOT-CRT",
          "type": "DEVICE"
        },
        {
          "name": "Biventricular Pacing",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Pugazhendhi Vijayaraman",
      "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": "2021-04-15",
      "completion_date": "2023-09-30",
      "has_results": true,
      "last_update_posted_date": "2024-08-07",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04561778"
    },
    {
      "nct_id": "NCT00370526",
      "title": "HEAL-HF: A Cardiac Resynchronization Therapy (CRT) Outcomes Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure, Congestive"
      ],
      "interventions": [
        {
          "name": "Acute hemodynamic assessment using PV Loops (CD Leycom, The Netherlands) during LV lead placement",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stereotaxis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 100,
      "start_date": "2007-02",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2008-01-11",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 3,
      "location_summary": "Gainesville, Georgia • Charleston, South Carolina • Richmond, Virginia",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Georgia"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00370526"
    },
    {
      "nct_id": "NCT01128166",
      "title": "Evaluation of Multisensor Data in Heart Failure Patients With Implanted Devices",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "COGNIS CRT-D",
          "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": 975,
      "start_date": "2010-06",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2015-10-21",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 81,
      "location_summary": "Anchorage, Alaska • Gilbert, Arizona • Little Rock, Arizona + 69 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01128166"
    },
    {
      "nct_id": "NCT00853593",
      "title": "Model 4396 Left Ventricular (LV) Lead Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Pacing Lead",
          "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": 197,
      "start_date": "2009-03",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2019-02-18",
      "last_synced_at": "2026-09-16T07:52:43.824Z",
      "location_count": 19,
      "location_summary": "Pasadena, California • Sacramento, California • Atlantis, Florida + 16 more",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Atlantis",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Hinsdale",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00853593"
    }
  ]
}