{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=7",
    "query": {
      "condition": "Heart Rate Fast",
      "page": 7
    },
    "page_size": 10
  },
  "pagination": {
    "page": 7,
    "page_size": 10,
    "total_count": 372,
    "total_pages": 38,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=8&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=6&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T04:34:32.124Z",
  "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": "NCT06616363",
      "title": "Does a Periaqueductal Gray-vagus Nerve Interface Malfunction Explain the Nat hx With Its Numerous Co-morbidities?",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "POTS - Postural Orthostatic Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Questionnaires to be competed",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Provide list of medication and lifetime events",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Use phone App to record new life events",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Will wear an activity monitor",
          "type": "DEVICE"
        },
        {
          "name": "Periodic 24-hour urine sodium check",
          "type": "OTHER"
        },
        {
          "name": "A fMRI scan",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "A bedside tilt test will be performed",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "IV placed to collect blood samples",
          "type": "OTHER"
        },
        {
          "name": "Stool Sample",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE",
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "21 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 21 Years · Female only"
      },
      "enrollment_count": 120,
      "start_date": "2024-05-29",
      "completion_date": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06616363"
    },
    {
      "nct_id": "NCT00335036",
      "title": "Pediatric Lead Extractability and Survival Evaluation (PLEASE)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ventricular Tachycardia",
        "Ventricular Fibrillation",
        "Cardiomyopathy",
        "Long QT Syndrome",
        "Congenital Heart Disease"
      ],
      "interventions": [
        {
          "name": "ICD lead implant",
          "type": "DEVICE"
        },
        {
          "name": "Thin leads",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Charles Berul",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "1 Year to 55 Years"
      },
      "enrollment_count": 748,
      "start_date": "2006-06",
      "completion_date": "2009-01",
      "has_results": true,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00335036"
    },
    {
      "nct_id": "NCT04359004",
      "title": "A Study to Evaluate the Effect of Vagus Nerve Stimulation in Patients Undergoing VT Ablation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Arrhythmia",
        "Ventricular Tachycardia (VT)"
      ],
      "interventions": [
        {
          "name": "Vagus Nerve Stimulation (VNS)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2020-12-08",
      "completion_date": "2023-10-30",
      "has_results": false,
      "last_update_posted_date": "2023-11-13",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04359004"
    },
    {
      "nct_id": "NCT00770484",
      "title": "Effect of Exercise in OI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Orthostatic Intolerance",
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Propranolol then Placebo",
          "type": "DRUG"
        },
        {
          "name": "Placebo then Propranolol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 12,
      "start_date": "2008-11",
      "completion_date": "2015-05",
      "has_results": true,
      "last_update_posted_date": "2016-08-05",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00770484"
    },
    {
      "nct_id": "NCT04512911",
      "title": "Comparison of Ventricular Tachycardia Ablation Strategies in Patients With Ischemic Cardiomyopathy",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Ventricular Tachycardia"
      ],
      "interventions": [
        {
          "name": "Endocardial ablation",
          "type": "PROCEDURE"
        },
        {
          "name": "Endocardial- Epicardial ablation",
          "type": "PROCEDURE"
        },
        {
          "name": "Antiarrhythmic medications",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 0,
      "start_date": "2023-01",
      "completion_date": "2023-01-23",
      "has_results": false,
      "last_update_posted_date": "2023-10-06",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04512911"
    },
    {
      "nct_id": "NCT02637947",
      "title": "Comparison of VT Ablation Outcomes Using Remote MAGNETIC Navigation Versus Manual Approach in a Low LVEF Population",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tachycardia, Ventricular"
      ],
      "interventions": [
        {
          "name": "catheter ablation using magnetic navigation",
          "type": "DEVICE"
        },
        {
          "name": "catheter ablation using manual navigation",
          "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": 182,
      "start_date": "2016-01",
      "completion_date": "2022-02-15",
      "has_results": false,
      "last_update_posted_date": "2022-09-27",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 8,
      "location_summary": "Orlando, Florida • Augusta, Georgia • Chicago, Illinois + 5 more",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Oak Lawn",
          "state": "Illinois"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02637947"
    },
    {
      "nct_id": "NCT04219501",
      "title": "Ventricular Arrhythmia Ablation With the Use of Non-Invasive ECG Imaging Technology",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Premature Ventricular Contraction",
        "Ventricular Tachycardia"
      ],
      "interventions": [
        {
          "name": "VIVO",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 0,
      "start_date": "2021-02-01",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-03-08",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04219501"
    },
    {
      "nct_id": "NCT01695551",
      "title": "Brain Perfusion and Hemodynamic Stability in Patients Undergoing Radiofrequency Ablation of Ventricular Tachycardia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ventricular Tachycardia"
      ],
      "interventions": [
        {
          "name": "Data Collection Forms",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Dhanunjaya Lakkireddy, MD, FACC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2012-07",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2017-01-09",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01695551"
    },
    {
      "nct_id": "NCT03408951",
      "title": "Surface ECG Signal Recording for the Implantable Subcutaneous String Defibrillator (ISSD) Detection Algorithm Performance Assessment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tachyarrhythmia",
        "Arrhythmias, Cardiac"
      ],
      "interventions": [
        {
          "name": "Recording",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NewPace Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 91,
      "start_date": "2017-03-02",
      "completion_date": "2018-12-05",
      "has_results": false,
      "last_update_posted_date": "2019-08-21",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 1,
      "location_summary": "Roslyn, New York",
      "locations": [
        {
          "city": "Roslyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03408951"
    },
    {
      "nct_id": "NCT05883631",
      "title": "RESOLVE-AF: Clinical Evaluation of the Ablacath™ Mapping Catheter and Ablamap® System Utilizing Electrographic Flow (EGF) Mapping to Resolve Extra-PV Sources of Atrial Fibrillation and Guide Ablation Therapy.",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Atrial Fibrillation, Persistent",
        "Atrial Fibrillation Paroxysmal",
        "Arrhythmia",
        "Arrhythmias, Cardiac",
        "Atrial Flutter",
        "Atrial Fibrillation, Paroxysmal or Persistent",
        "Atrial Arrhythmia",
        "Atrial Tachycardia"
      ],
      "interventions": [
        {
          "name": "Electrographic Flow (EGF) mapping and ablation of EGF-identified sources of Atrial Fibrillation",
          "type": "DEVICE"
        },
        {
          "name": "Electrographic Flow (EGF) mapping (no ablation)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Cortex",
      "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": 400,
      "start_date": "2023-10-23",
      "completion_date": "2026-01",
      "has_results": false,
      "last_update_posted_date": "2025-04-13",
      "last_synced_at": "2026-10-22T04:34:32.124Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Redwood City, California + 11 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05883631"
    }
  ]
}