{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Arrhythmias",
    "query": {
      "condition": "Heart Arrhythmias"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1568,
    "total_pages": 157,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Arrhythmias&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-14T19:33:52.406Z",
  "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": "NCT00005235",
      "title": "Heart Rate Variability and Sudden Cardiac Death",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Diseases",
        "Coronary Disease",
        "Heart Diseases",
        "Myocardial Infarction",
        "Death, Sudden, Cardiac",
        "Ventricular Arrhythmia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 715,
      "start_date": "1988-12",
      "completion_date": "1993-09",
      "has_results": false,
      "last_update_posted_date": "2015-12-24",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005235"
    },
    {
      "nct_id": "NCT00119847",
      "title": "Electrophysiological Effects of Late PCI After MI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Heart Diseases",
        "Myocardial Infarction",
        "Coronary Disease",
        "Arrhythmia",
        "Ventricular Fibrillation"
      ],
      "interventions": [
        {
          "name": "PCI",
          "type": "PROCEDURE"
        },
        {
          "name": "Optimal Medical Therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 300,
      "start_date": "2002-09",
      "completion_date": "2006-12",
      "has_results": true,
      "last_update_posted_date": "2022-05-18",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 1,
      "location_summary": "Stony Brook, New York",
      "locations": [
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00119847"
    },
    {
      "nct_id": "NCT04176926",
      "title": "Validation of Software for Assessment of Atrial Fibrillation From Data Acquired by a Wearable Smartwatch",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Electrocardiogram",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Fitbit LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 472,
      "start_date": "2019-10-29",
      "completion_date": "2020-03-02",
      "has_results": false,
      "last_update_posted_date": "2020-04-09",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 9,
      "location_summary": "Washington D.C., District of Columbia • Orlando, Florida • The Villages, Florida + 6 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "The Villages",
          "state": "Florida"
        },
        {
          "city": "Winfield",
          "state": "Illinois"
        },
        {
          "city": "Ames",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04176926"
    },
    {
      "nct_id": "NCT02533843",
      "title": "Outcome of Different Ablation Strategies In Persistent and Long-Standing Persistent Atrial Fibrillation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "radiofrequency catheter ablation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Texas Cardiac Arrhythmia 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": 120,
      "start_date": "2014-04",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2018-04-25",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02533843"
    },
    {
      "nct_id": "NCT00580216",
      "title": "Evaluation of Weekly Idrabiotaparinux Sodium Versus Oral Adjusted-dose Warfarin to Prevent Stroke and Systemic Thromboembolic Events in Patients With Atrial Fibrillation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Idrabiotaparinux sodium",
          "type": "DRUG"
        },
        {
          "name": "Warfarin",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for idrabiotaparinux)",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for warfarin)",
          "type": "DRUG"
        },
        {
          "name": "Avidin",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for avidin)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3773,
      "start_date": "2007-12",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2016-03-21",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 162,
      "location_summary": "Mobile, Alabama • Tucson, Arizona • Little Rock, Arkansas + 134 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Mountain Home",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00580216"
    },
    {
      "nct_id": "NCT03894878",
      "title": "Association Between Genetic Variant Scores and Warfarin Effect",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Atrial Fibrillation",
        "Deep Vein Thrombosis",
        "Intracardiac Thrombus",
        "Pulmonary Embolism",
        "Venous Thromboembolic Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Cipherome, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 200,
      "start_date": "2019-02-11",
      "completion_date": "2022-09-30",
      "has_results": false,
      "last_update_posted_date": "2023-02-16",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 1,
      "location_summary": "Santa Clara, California",
      "locations": [
        {
          "city": "Santa Clara",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03894878"
    },
    {
      "nct_id": "NCT02300558",
      "title": "Effect of Eleclazine on Shortening of the QT Interval, Safety, and Tolerability in Adults With Long QT Syndrome Type 3",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Long QT Syndrome Type 3"
      ],
      "interventions": [
        {
          "name": "Eleclazine",
          "type": "DRUG"
        },
        {
          "name": "Eleclazine placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "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": 41,
      "start_date": "2014-12-17",
      "completion_date": "2017-02-15",
      "has_results": true,
      "last_update_posted_date": "2018-01-12",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 3,
      "location_summary": "Rochester, Minnesota • New York, New York • Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02300558"
    },
    {
      "nct_id": "NCT02913014",
      "title": "Comparison of Recurrence of Atrial Fibrillation Post Cryoballon Ablation During the 90-day Blanking Period-with and Without Anti-arrhythmic Drug Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "No AAD post Ablation.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Prisma Health-Midlands",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 50,
      "start_date": "2017-06-28",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-31",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 1,
      "location_summary": "Columbia, South Carolina",
      "locations": [
        {
          "city": "Columbia",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02913014"
    },
    {
      "nct_id": "NCT02815384",
      "title": "Assessment Of MRI In Patients With Implanted Cardiac Devices",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arrhythmias, Cardiac"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2017-10-12",
      "completion_date": "2019-04-16",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02815384"
    },
    {
      "nct_id": "NCT02028143",
      "title": "ICE: Intracardiac Ultrasound Within the Left Atrium During Radiofrequency Ablation of Nonvalvular Atrial Fibrillation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Biosense Webster irrigated tip catheter",
          "type": "DEVICE"
        },
        {
          "name": "Pulmonary vein isolation",
          "type": "PROCEDURE"
        },
        {
          "name": "ICE catheter placed through one of two existing 8F sheaths",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Gregory Jones",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2013-11",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2018-04-24",
      "last_synced_at": "2026-09-14T19:33:52.406Z",
      "location_count": 1,
      "location_summary": "Kingsport, Tennessee",
      "locations": [
        {
          "city": "Kingsport",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02028143"
    }
  ]
}