{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast",
    "query": {
      "condition": "Heart Rate Fast"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 362,
    "total_pages": 37,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T02:16:37.946Z",
  "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": "NCT00267982",
      "title": "Radiofrequency Ablation of Ectopic Atrial Tachycardia",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Disorders"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Children's Healthcare of Atlanta",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 25,
      "start_date": "1992-08",
      "completion_date": "2008-02",
      "has_results": false,
      "last_update_posted_date": "2011-07-06",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00267982"
    },
    {
      "nct_id": "NCT02401776",
      "title": "Effect of Caffeine on Heart Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fatigue",
        "Tachycardia"
      ],
      "interventions": [
        {
          "name": "Monster Energy Drink",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Coffee",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 30,
      "start_date": "2014-03",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-10-18",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02401776"
    },
    {
      "nct_id": "NCT00401882",
      "title": "Treatment of Ventricular Tachyarrhythmias Refractory To Shock With Beta Blockers: The SHOCK and BLOCK Trial",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cardiac Arrest",
        "Sudden Cardiac Death",
        "Ventricular Fibrillation",
        "Tachycardia, Ventricular"
      ],
      "interventions": [
        {
          "name": "Epinephrine",
          "type": "DRUG"
        },
        {
          "name": "Metoprolol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "David Haines, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2007-01",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2017-05-25",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Royal Oak, Michigan",
      "locations": [
        {
          "city": "Royal Oak",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00401882"
    },
    {
      "nct_id": "NCT05377216",
      "title": "Characterization of Cardiac Electrophysiological Effects of Autonomic Neuromodulation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Ventricular Tachycardia"
      ],
      "interventions": [
        {
          "name": "Stellate Ganglion Block",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "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": "2022-09-01",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-21",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05377216"
    },
    {
      "nct_id": "NCT01076660",
      "title": "Left Ventricular Structural Predictors of Sudden Cardiac Death",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ischemic Cardiomyopathy",
        "Nonischemic Cardiomyopathy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 400,
      "start_date": "2003-10",
      "completion_date": "2030-06",
      "has_results": false,
      "last_update_posted_date": "2026-01-20",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 2,
      "location_summary": "Newark, Delaware • Baltimore, Maryland",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01076660"
    },
    {
      "nct_id": "NCT07405515",
      "title": "Pathophysiology of Dysautonomia and Postural Tachycardia Syndrome (POTS) in Post-viral Syndromes and COVID-19",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "POTS",
        "POTS - Postural Orthostatic Tachycardia Syndrome",
        "Dysautonomia",
        "Autonomic Dysfunction"
      ],
      "interventions": [
        {
          "name": "Blood Sample Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2024-02-02",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-12",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07405515"
    },
    {
      "nct_id": "NCT01783288",
      "title": "Aldosterone & Sodium Regulation in Postural Tachycardia Syndrome - Screening",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Autonomic Function Testing",
          "type": "OTHER"
        },
        {
          "name": "Posture Study",
          "type": "OTHER"
        },
        {
          "name": "Measurement of Total Blood Volume",
          "type": "PROCEDURE"
        },
        {
          "name": "Exercise Capacity Test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2013-02",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01783288"
    },
    {
      "nct_id": "NCT07452016",
      "title": "AI-guided Prediction and Treatment of Cardiac Arrest",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sudden Cardiac Arrest"
      ],
      "interventions": [
        {
          "name": "Machine learning-guided cardiac arrest prediction device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "MetroHealth Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 68,
      "start_date": "2026-08",
      "completion_date": "2029-06",
      "has_results": false,
      "last_update_posted_date": "2026-03-16",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07452016"
    },
    {
      "nct_id": "NCT06993038",
      "title": "Adenosine vs Diltiazem for Treatment of SVT in the ED",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Supraventricular Tachycardia (SVT)"
      ],
      "interventions": [
        {
          "name": "adenosine",
          "type": "DRUG"
        },
        {
          "name": "diltiazem",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Anne E. Zepeski",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 20,
      "start_date": "2025-08-01",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-28",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06993038"
    },
    {
      "nct_id": "NCT01064076",
      "title": "S-ICD® System IDE Clinical Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tachycardia, Ventricular"
      ],
      "interventions": [
        {
          "name": "S-ICD System",
          "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": 330,
      "start_date": "2010-01",
      "completion_date": "2013-01",
      "has_results": true,
      "last_update_posted_date": "2017-03-27",
      "last_synced_at": "2026-06-11T02:16:37.946Z",
      "location_count": 28,
      "location_summary": "Scottsdale, Arizona • Los Angeles, California • Pasadena, California + 22 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01064076"
    }
  ]
}