{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=2",
    "query": {
      "condition": "Heart Rate Fast",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Rate+Fast&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T03:31:11.256Z",
  "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": "NCT05434650",
      "title": "Abbott Atrial Fibrillation Post Approval Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Atrial Arrhythmia",
        "Atrium; Fibrillation",
        "Atrial Tachycardia"
      ],
      "interventions": [
        {
          "name": "electrophysiology study and ablation with an Abbott Ablation Catheter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 200,
      "start_date": "2022-10-21",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2025-11-19",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 20,
      "location_summary": "Huntsville, Alabama • Little Rock, Arkansas • Rancho Mirage, California + 16 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Rancho Mirage",
          "state": "California"
        },
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05434650"
    },
    {
      "nct_id": "NCT01791543",
      "title": "Intramural Needle Ablation for Ablation of Recurrent Ventricular Tachycardia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ventricular Tachycardia"
      ],
      "interventions": [
        {
          "name": "Intramural Needle Ablation Catheter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "William Stevenson",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 115,
      "start_date": "2016-09",
      "completion_date": "2022-05-27",
      "has_results": true,
      "last_update_posted_date": "2023-02-01",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Nashville, Tennessee",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01791543"
    },
    {
      "nct_id": "NCT04000542",
      "title": "Pharmacist Use of ECG to Inform Drug Therapy Decisions for Patients Receiving QT Prolonging Medications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Torsades de Pointe Caused by Drug (Disorder)",
        "Torsades de Pointes",
        "Qt Interval, Variation in"
      ],
      "interventions": [
        {
          "name": "Pharmacist Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Northeast Iowa Medical Education Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2019-07-11",
      "completion_date": "2020-03-31",
      "has_results": false,
      "last_update_posted_date": "2020-04-09",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 1,
      "location_summary": "Waterloo, Iowa",
      "locations": [
        {
          "city": "Waterloo",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04000542"
    },
    {
      "nct_id": "NCT01929083",
      "title": "Influence of Progesterone Administration on Drug-Induced QT Interval Lengthening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prolonged QT Interval in EKG and Sudden Death"
      ],
      "interventions": [
        {
          "name": "Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ibutilide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 40 Years · Female only"
      },
      "enrollment_count": 19,
      "start_date": "2013-04",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2015-10-30",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 2,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01929083"
    },
    {
      "nct_id": "NCT04806620",
      "title": "Unhide® Project: A Digital Health Platform to Collect Lifestyle Data for Brain Inflammation Research",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Post-Acute COVID-19 Syndrome",
        "ME/CFS",
        "Rheumatic Arthritis",
        "Juvenile Rheumatoid Arthritis (JRA)",
        "Psoriatic Arthritis (PsA)",
        "Ankylosing Spondylitis (AS)",
        "Autoimmune Encephalitis",
        "Celiac Disease",
        "Celiac Disease in Children",
        "Chronic Lyme Disease",
        "Post-treatment Lyme Disease Syndrome",
        "Crohn's Disease",
        "Dysautonomia",
        "Anorexia Nervosa",
        "Bulimia Nervosa",
        "ARFID",
        "Avoidant / Restrictive Food Intake Disorder",
        "Ehlers Danlos Syndrome",
        "Endometriosis",
        "Fibromyalgia (FM)",
        "Long COVID",
        "Lupus",
        "Migraines",
        "Mast Cell Activation Syndrome",
        "Multiple Sclerosis",
        "Myalgic Encephalomyelitis (ME)",
        "Myasthenia Gravis, Generalized",
        "Myasthenia Gravis in Children",
        "Narcolepsy",
        "Obsessive Compulsive Disorder (OCD)",
        "PANDAS",
        "Pediatric Acute-onset Neuropsychiatric Syndrome (PANS)",
        "POTS - Postural Orthostatic Tachycardia Syndrome",
        "General Anxiety Disorder, Social Anxiety Disorder",
        "PTSD - Post Traumatic Stress Disorder",
        "Psoriasis",
        "Traumatic Brain Injury",
        "Tourette's Syndrome",
        "Inflammatory Bowel Disease (IBD)",
        "Autoimmune Diseases",
        "Neurological Diseases or Conditions",
        "Psychiatric Disorder",
        "Sjogren's Syndrome",
        "Ulcerative Colitis and Crohn's Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Brain Inflammation Collaborative",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 10000,
      "start_date": "2023-07-05",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 1,
      "location_summary": "Delafield, Wisconsin",
      "locations": [
        {
          "city": "Delafield",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04806620"
    },
    {
      "nct_id": "NCT04056715",
      "title": "Extended ECG Monitoring in HCM Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertrophic Cardiomyopathy",
        "Nonsustained Ventricular Tachycardia",
        "Ventricular Tachycardia",
        "Atrial Fibrillation",
        "Arrhythmia"
      ],
      "interventions": [
        {
          "name": "Zio XT",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "iRhythm Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 250,
      "start_date": "2020-01-14",
      "completion_date": "2022-04-18",
      "has_results": false,
      "last_update_posted_date": "2023-03-01",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04056715"
    },
    {
      "nct_id": "NCT04559061",
      "title": "Vektor vMap™ Clinical Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiac Arrhythmia",
        "Atrial Fibrillation",
        "Ventricular Arrythmia",
        "Premature Ventricular Complexes Multiple",
        "Ventricular Tachycardia",
        "Ventricular Fibrillation",
        "Premature Atrial Complex",
        "Atrioventricular Reentrant Tachycardia"
      ],
      "interventions": [
        {
          "name": "Cardiac ablation procedure",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Vektor Medical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "22 Years to 100 Years"
      },
      "enrollment_count": 225,
      "start_date": "2020-12-01",
      "completion_date": "2021-04-06",
      "has_results": false,
      "last_update_posted_date": "2021-04-08",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 4,
      "location_summary": "Charleston, California • La Jolla, California • San Diego, California + 1 more",
      "locations": [
        {
          "city": "Charleston",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04559061"
    },
    {
      "nct_id": "NCT01892462",
      "title": "Circulating Biomarkers and Ventricular Tachyarrhythmia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiomyopathy",
        "Ventricular Tachycardia",
        "Ventricular Fibrillation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Ochsner Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 220,
      "start_date": "2012-06",
      "completion_date": "2016-10",
      "has_results": false,
      "last_update_posted_date": "2017-04-07",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01892462"
    },
    {
      "nct_id": "NCT07188129",
      "title": "Evaluation of a Test Algorithm for Use to Analyze ECG Data Collected From a Test Device of a 24-hour Simulated Use Period",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation (AF)",
        "Tachycardia",
        "Bradycardia",
        "PVC - Premature Ventricular Contraction",
        "Premature Atrial Contraction"
      ],
      "interventions": [
        {
          "name": "Test Algorithm and Test Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Zywie, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 153,
      "start_date": "2025-01-20",
      "completion_date": "2025-06-11",
      "has_results": false,
      "last_update_posted_date": "2025-09-23",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 1,
      "location_summary": "Bozeman, Montana",
      "locations": [
        {
          "city": "Bozeman",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07188129"
    },
    {
      "nct_id": "NCT03919773",
      "title": "IVIG (Gamunex-C) Treatment Study for POTS Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "IVIG",
          "type": "DRUG"
        },
        {
          "name": "Albumin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2018-10-29",
      "completion_date": "2023-12-01",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-06-11T03:31:11.256Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03919773"
    }
  ]
}