{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=10",
    "query": {
      "condition": "Heart Rate Fast",
      "page": 10
    },
    "page_size": 10
  },
  "pagination": {
    "page": 10,
    "page_size": 10,
    "total_count": 372,
    "total_pages": 38,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=11&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=9&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T08:31:26.563Z",
  "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": "NCT02031484",
      "title": "Comparison of Continuous Sternal ECG Patch Monitors (Carnation and Zio) Trial",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Syncope",
        "Presyncope",
        "Palpitations",
        "Atrial Fibrillation",
        "Supraventricular Tachycardia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Bardy Diagnostics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2016-07",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2016-10-07",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 4,
      "location_summary": "Chicago, Illinois • Iowa City, Iowa • Charlotte, North Carolina + 1 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Kirkland",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02031484"
    },
    {
      "nct_id": "NCT04520347",
      "title": "IVTCC 2.0: A Prospective Multicenter Ventricular Tachycardia Catheter Ablation Registry",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ventricular Arrhythmia",
        "Ventricular Tachycardia",
        "Premature Ventricular Contraction (PVC)",
        "Cardiomyopathy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 10000,
      "start_date": "2018-12-01",
      "completion_date": "2027-11",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 34,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Sacramento, California + 25 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04520347"
    },
    {
      "nct_id": "NCT03124355",
      "title": "Vagal Stimulation in POTS",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "placebo sugar pill",
          "type": "DRUG"
        },
        {
          "name": "Pyridostigmine Pill",
          "type": "DRUG"
        },
        {
          "name": "Galantamine Pill",
          "type": "DRUG"
        },
        {
          "name": "Vagal stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Sham vagal stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 11,
      "start_date": "2017-09-30",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03124355"
    },
    {
      "nct_id": "NCT00566787",
      "title": "Concomitant Treatment of Permanent Atrial Fibrillation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Surgical bipolar radiofrequency ablation using the AtriCure Bipolar System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "AtriCure, Inc.",
      "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": 39,
      "start_date": "2005-01",
      "completion_date": "2010-11",
      "has_results": false,
      "last_update_posted_date": "2012-01-25",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 10,
      "location_summary": "Indianapolis, Indiana • Ann Arbor, Michigan • Grand Rapids, Michigan + 7 more",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00566787"
    },
    {
      "nct_id": "NCT00685919",
      "title": "Peripheral Dopamine in Postural Tachycardia Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome",
        "Orthostatic Intolerance"
      ],
      "interventions": [
        {
          "name": "Carbidopa",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 32,
      "start_date": "2008-05",
      "completion_date": "2021-12",
      "has_results": true,
      "last_update_posted_date": "2022-01-24",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00685919"
    },
    {
      "nct_id": "NCT01000350",
      "title": "Intravenous (IV) Saline and Exercise in Postural Tachycardia Syndrome (POTS)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Saline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "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": 40,
      "start_date": "2009-10",
      "completion_date": "2031-06",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01000350"
    },
    {
      "nct_id": "NCT01308099",
      "title": "Assessment of Vascular Endothelial Function in Postural Tachycardia Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Blood Pressure and Blood Flow",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 26,
      "start_date": "2011-02",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2017-01-18",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 2,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01308099"
    },
    {
      "nct_id": "NCT01215253",
      "title": "Ranolazine Implantable Cardioverter-Defibrillator Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ischemic Cardiomyopathy",
        "Nonischemic Cardiomyopathy",
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Ranolazine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 1012,
      "start_date": "2011-09",
      "completion_date": "2017-02-28",
      "has_results": true,
      "last_update_posted_date": "2018-08-27",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 83,
      "location_summary": "Tucson, Arizona • Little Rock, Arkansas • East Palo Alto, California + 70 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "East Palo Alto",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01215253"
    },
    {
      "nct_id": "NCT05471830",
      "title": "An Observational Study (Called RETAF-PS) Using a Patient Survey to Learn More About Treatment Outcomes in Patients With Irregular and Often Rapid Heartbeat (Atrial Fibrillation) Treated With Apixaban in a Real World Setting",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prevention of Thromboembolic Events",
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Apixaban",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2022-11-30",
      "completion_date": "2023-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-12-12",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 1,
      "location_summary": "Whippany, New Jersey",
      "locations": [
        {
          "city": "Whippany",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05471830"
    },
    {
      "nct_id": "NCT03353610",
      "title": "The PSVT Place Registry.Paroxysmal Supraventricular Tachycardia (PSVT) Registry.",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Paroxysmal Supraventricular Tachycardia (PSVT)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Milestone Pharmaceuticals Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 354,
      "start_date": "2017-10-16",
      "completion_date": "2020-03-16",
      "has_results": false,
      "last_update_posted_date": "2020-12-03",
      "last_synced_at": "2026-10-22T08:31:26.563Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03353610"
    }
  ]
}