{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=CRT-D+Cardiac+Resynchronization+Therapy+Defibrillator",
    "query": {
      "condition": "CRT-D Cardiac Resynchronization Therapy Defibrillator"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 14,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=CRT-D+Cardiac+Resynchronization+Therapy+Defibrillator&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T06:12:03.225Z",
  "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": "NCT02693262",
      "title": "Comparing Rate Response With CLS Versus Accelerometer ICD Settings in Heart Failure Patients With BIOTRONIK CRT-Ds",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure",
        "ICD",
        "Chronotropic Incompetence"
      ],
      "interventions": [
        {
          "name": "CLS Mode on Biotronik CRT-D",
          "type": "DEVICE"
        },
        {
          "name": "Accelerometer Mode on Biotronik CRT-D",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 12,
      "start_date": "2016-07",
      "completion_date": "2020-07-24",
      "has_results": true,
      "last_update_posted_date": "2021-08-05",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02693262"
    },
    {
      "nct_id": "NCT01045343",
      "title": "Feasibility Study of an Integrated Diagnostic System to Manage Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Integrated diagnositic system",
          "type": "OTHER"
        },
        {
          "name": "Routine in office visits",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 136,
      "start_date": "2010-03",
      "completion_date": "2012-02",
      "has_results": false,
      "last_update_posted_date": "2012-04-17",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 13,
      "location_summary": "Anchorage, Alaska • Aurora, Colorado • Tampa, Florida + 10 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01045343"
    },
    {
      "nct_id": "NCT00856349",
      "title": "Medtronic Shock-Less Study on Physician Utilization of Shock Reduction Programming",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Therapy Programming Report (TPR)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 4384,
      "start_date": "2009-04",
      "completion_date": "2013-03",
      "has_results": true,
      "last_update_posted_date": "2014-07-03",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 83,
      "location_summary": "Anniston, Alabama • Phoenix, Arizona • Tucson, Arizona + 80 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00856349"
    },
    {
      "nct_id": "NCT00990665",
      "title": "Promote Q Cardiac Resynchronization Therapy Defibrillator (CRT-D) and Quartet Left Ventricular Heart Lead Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "CRT-D and LV lead (Quartet™ lead and Promote Q® device system)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "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": 178,
      "start_date": "2009-09",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2019-02-27",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 24,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Glendale, California + 20 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00990665"
    },
    {
      "nct_id": "NCT02104583",
      "title": "Evaluating Ventricular Arrhythmia in Subjects With Implantable Cardioverter Defibrillator or Cardiac Resynchronization Therapy-Defibrillator",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ventricular Arrhythmia"
      ],
      "interventions": [
        {
          "name": "Eleclazine",
          "type": "DRUG"
        },
        {
          "name": "Placebo to match eleclazine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "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": 313,
      "start_date": "2014-09",
      "completion_date": "2016-10",
      "has_results": true,
      "last_update_posted_date": "2019-04-09",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 37,
      "location_summary": "Mesa, Arizona • Long Beach, California • Los Angeles, California + 32 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02104583"
    },
    {
      "nct_id": "NCT00847288",
      "title": "OptiVol® Care Pathway",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Monthly Review Arm",
          "type": "OTHER"
        },
        {
          "name": "Quarterly Review Arm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 1682,
      "start_date": "2009-03",
      "completion_date": "2011-05",
      "has_results": true,
      "last_update_posted_date": "2013-05-03",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 108,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 105 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00847288"
    },
    {
      "nct_id": "NCT02166762",
      "title": "Correlating QLV Interval to Left Ventricular (LV) Lead Position in Patients Receiving Cardiac Resynchronization Therapy.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure",
        "Cardiomyopathy",
        "Cardiac Arrhythmia"
      ],
      "interventions": [
        {
          "name": "QLV interval measurement",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2013-05",
      "completion_date": "2015-09",
      "has_results": false,
      "last_update_posted_date": "2019-06-07",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02166762"
    },
    {
      "nct_id": "NCT01609985",
      "title": "Cutaneous Heart Sounds Data Collection During Cardiac Resynchronization Therapy (CRT) Optimization Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 52,
      "start_date": "2012-03",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2013-07-01",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 5,
      "location_summary": "Riverside, California • Orlando, Florida • Duluth, Minnesota + 2 more",
      "locations": [
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Duluth",
          "state": "Minnesota"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01609985"
    },
    {
      "nct_id": "NCT02698241",
      "title": "Integrated Diagnostics Driven Diuretic and Chronic Medication Management for Heart Failure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Diagnostic & Medication Management",
          "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": 79,
      "start_date": "2016-05",
      "completion_date": "2018-09",
      "has_results": true,
      "last_update_posted_date": "2019-12-30",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 8,
      "location_summary": "Phoenix, Arizona • Ft. Pierce, Florida • Jacksonville, Florida + 4 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Ft. Pierce",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02698241"
    },
    {
      "nct_id": "NCT00500838",
      "title": "Cardiac Resynchronization Therapy Defibrillator Based Impedance Monitoring Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Transthoracic Impedance",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "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": 75,
      "start_date": "2007-07",
      "completion_date": "2008-08",
      "has_results": false,
      "last_update_posted_date": "2019-02-01",
      "last_synced_at": "2026-07-23T06:12:03.225Z",
      "location_count": 4,
      "location_summary": "Little Rock, Arkansas • Glendale, California • Browns Mills, New Jersey + 1 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Browns Mills",
          "state": "New Jersey"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00500838"
    }
  ]
}