{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=1-lead+ECG",
    "query": {
      "intervention": "1-lead ECG"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 55,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=1-lead+ECG&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T12:12:39.567Z",
  "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": "NCT03424915",
      "title": "Exercise, Fitness and Tumor Profiling in Breast Cancer Patients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Harvard Health Professionals survey",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood draw",
          "type": "OTHER"
        },
        {
          "name": "CPET Procedures",
          "type": "OTHER"
        },
        {
          "name": "stool sample",
          "type": "OTHER"
        },
        {
          "name": "Research Tissue sampling",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 80 Years · Female only"
      },
      "enrollment_count": 42,
      "start_date": "2018-01-31",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-04",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 7,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03424915"
    },
    {
      "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": "2026-09-03T12:12:39.567Z",
      "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": "NCT00996021",
      "title": "Study to Assess Cardiac Conduction of GSK1349572",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Subjects"
      ],
      "interventions": [
        {
          "name": "GSK1349572 250 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo Suspension",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin 400 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 42,
      "start_date": "2009-09",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2010-01-25",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00996021"
    },
    {
      "nct_id": "NCT07136623",
      "title": "Detecting Pulmonary Hypertension With the Eko CORE 500 Digital Stethoscope",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmnary Hypertension"
      ],
      "interventions": [
        {
          "name": "Eko CORE 500 phonocardiogram (PCG) recording",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Eko CORE 500 three-lead electrocardiogram (ECG) recording",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Eko Devices, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1513,
      "start_date": "2025-08-01",
      "completion_date": "2027-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Durham, North Carolina",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07136623"
    },
    {
      "nct_id": "NCT05942274",
      "title": "SmartWatch ECG Evaluation Trial I",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "We propose to validate these smartwatch ECG functions to support FDA submissions",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 0,
      "start_date": "2023-12",
      "completion_date": "2024-04-18",
      "has_results": false,
      "last_update_posted_date": "2024-05-22",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05942274"
    },
    {
      "nct_id": "NCT03388632",
      "title": "Recombinant Interleukin-15 in Combination With Checkpoint Inhibitors Nivolumab and Ipilimumab in People With Refractory Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Metastatic Solid Tumors",
        "Treatment-Refractory Cancers"
      ],
      "interventions": [
        {
          "name": "rhIL-15",
          "type": "DRUG"
        },
        {
          "name": "Ipilimumab",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab",
          "type": "DRUG"
        },
        {
          "name": "Tumor biopsies",
          "type": "PROCEDURE"
        },
        {
          "name": "EKG",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "ECHO",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "CT Scan",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 31,
      "start_date": "2018-02-05",
      "completion_date": "2025-05-08",
      "has_results": true,
      "last_update_posted_date": "2025-12-18",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03388632"
    },
    {
      "nct_id": "NCT07468123",
      "title": "Atrial Fibrillation Risk Estimation With Single-lead Handheld Electrocardiograms",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation (AF)"
      ],
      "interventions": [
        {
          "name": "1L ECG screening",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Patch monitor",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 200,
      "start_date": "2025-07-30",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-12",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07468123"
    },
    {
      "nct_id": "NCT03971734",
      "title": "Determining Dose of Regadenoson Most Likely to Transiently Alter the Integrity of the Blood-Brain Barrier in Patients With High Grade Gliomas",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "High Grade Glioma",
        "Anaplastic Astrocytoma",
        "Anaplastic Oligodendroglioma",
        "Glioblastoma"
      ],
      "interventions": [
        {
          "name": "Regadenoson 0.05mg",
          "type": "DRUG"
        },
        {
          "name": "Regadensoson 0.1mg",
          "type": "DRUG"
        },
        {
          "name": "Regadensoson 0.2mg",
          "type": "DRUG"
        },
        {
          "name": "Regadensoson 0.4mg",
          "type": "DRUG"
        },
        {
          "name": "Regadensoson 0.7mg",
          "type": "DRUG"
        },
        {
          "name": "Regadensoson 1.0mg",
          "type": "DRUG"
        },
        {
          "name": "Regadensoson 1.4mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 7,
      "start_date": "2019-12-06",
      "completion_date": "2023-10-02",
      "has_results": false,
      "last_update_posted_date": "2023-10-06",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03971734"
    },
    {
      "nct_id": "NCT00890461",
      "title": "Reconstruction of 12-Lead Electrogram From Intracardiac Signals From Defibrillators During or After Implantation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "ICD"
      ],
      "interventions": [
        {
          "name": "CT scan of the chest without contrast",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2007-11",
      "completion_date": "2017-02-08",
      "has_results": false,
      "last_update_posted_date": "2017-05-03",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 2,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00890461"
    },
    {
      "nct_id": "NCT07103057",
      "title": "VIZ ACCESS HCM - Multi-Site Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertrophic Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "Viz HCM",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Viz.ai, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2025-06-13",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2025-08-17",
      "last_synced_at": "2026-09-03T12:12:39.567Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Evanston, Illinois • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Evanston",
          "state": "Illinois"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07103057"
    }
  ]
}