{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Electrocardiogram+%28EKG%29&page=3",
    "query": {
      "intervention": "Electrocardiogram (EKG)",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 358,
    "total_pages": 36,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Electrocardiogram+%28EKG%29&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Electrocardiogram+%28EKG%29&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T06:22:06.722Z",
  "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": "NCT03789240",
      "title": "Response-Adapted Therapy With Copanlisib and Rituximab in Untreated Follicular Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Follicular Lymphoma",
        "Non-Hodgkin's Lymphoma",
        "NHL"
      ],
      "interventions": [
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Copanlisib",
          "type": "DRUG"
        },
        {
          "name": "Bone Marrow Aspiration/Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "CT Scans",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "18F-FDG-PET/CT Scan15",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Electrocardigram",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2019-08-22",
      "completion_date": "2027-01-01",
      "has_results": true,
      "last_update_posted_date": "2026-03-03",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03789240"
    },
    {
      "nct_id": "NCT04000087",
      "title": "ECG AI-Guided Screening for Low Ejection Fraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asymptomatic Left Ventricular Systolic Dysfunction (Disorder)",
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "AI-enabled ECG-based Screening Tool",
          "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": 358,
      "start_date": "2019-06-26",
      "completion_date": "2020-11-01",
      "has_results": false,
      "last_update_posted_date": "2023-05-31",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04000087"
    },
    {
      "nct_id": "NCT04447027",
      "title": "Romidepsin, CC-486 (5-azacitidine), Dexamethasone, and Lenalidomide (RAdR) for Relapsed/Refractory T-cell Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cutaneous T-Cell Lymphoma",
        "Mature T-cell Malignancies",
        "Peripheral T-Cell Lymphoma",
        "Relapsed/ Refractory T-cell Malignancies"
      ],
      "interventions": [
        {
          "name": "Romidepsin",
          "type": "DRUG"
        },
        {
          "name": "Lenalidomide",
          "type": "DRUG"
        },
        {
          "name": "CC-486 (5-azacitidine)",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "EKG",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Bone Marrow Aspiration/Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "MRI",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "TTE",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST",
        "PROCEDURE"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2020-12-17",
      "completion_date": "2025-12-17",
      "has_results": true,
      "last_update_posted_date": "2026-08-13",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04447027"
    },
    {
      "nct_id": "NCT07202104",
      "title": "Improvement of an Algorithm to Detect Structural Heart Murmurs in Adult Patients Using Electronic Stethoscopes",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Structural Heart Disease"
      ],
      "interventions": [
        {
          "name": "Eko digital stethoscopes",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Eko Devices, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2026-06-29",
      "completion_date": "2026-06-29",
      "has_results": false,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Springfield, Missouri",
      "locations": [
        {
          "city": "Springfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07202104"
    },
    {
      "nct_id": "NCT02519998",
      "title": "Tissue Repository and Master Database for Concussion Biomarker and Risk Calculator Development",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Brain Concussion"
      ],
      "interventions": [
        {
          "name": "Concussion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "10 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2015-03",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2015-08-11",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02519998"
    },
    {
      "nct_id": "NCT06891222",
      "title": "A Study of Electrocardiogram and Focused Cardiac Ultrasound for Enhanced Cardiac Disease Screening",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiac Disease"
      ],
      "interventions": [
        {
          "name": "AI-ECG (artificial intelligence-enabled electrocardiogram)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Focus Screening (focused cardiac ultrasonography)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2705,
      "start_date": "2025-04-14",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06891222"
    },
    {
      "nct_id": "NCT06151730",
      "title": "Evaluation of Hypertension Management and Cardiovascular Adverse Event Prevention in Patients With B-cell Malignancies Undergoing Treatment With Bruton Tyrosine Kinase Inhibitors, the HALT Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Lymphocytic Leukemia",
        "Hematopoietic and Lymphoid System Neoplasm",
        "Mantle Cell Lymphoma",
        "Marginal Zone Lymphoma",
        "Waldenstrom Macroglobulinemia"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 100,
      "start_date": "2024-01-05",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06151730"
    },
    {
      "nct_id": "NCT04699812",
      "title": "Atrial Fibrillation Algorithms Clinical Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "ELECTROCARDIOGRAM (ECG) PATCH WEAR",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Apple Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 573,
      "start_date": "2020-11-16",
      "completion_date": "2021-12-17",
      "has_results": true,
      "last_update_posted_date": "2022-08-24",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 4,
      "location_summary": "Coral Gables, Florida • Avon, Indiana • Wichita, Kansas + 1 more",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Avon",
          "state": "Indiana"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        },
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04699812"
    },
    {
      "nct_id": "NCT04660890",
      "title": "A Study of the Cardiac Effects of ALXN2050 in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "ALXN2050",
          "type": "DRUG"
        },
        {
          "name": "ALXN2050-matching Placebo",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin-matching Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alexion Pharmaceuticals, Inc.",
      "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": 39,
      "start_date": "2020-12-12",
      "completion_date": "2021-03-16",
      "has_results": false,
      "last_update_posted_date": "2021-12-29",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04660890"
    },
    {
      "nct_id": "NCT06819059",
      "title": "Safety and Effectiveness of a Virtual Pediatric Cardiac Rehabilitation Program or Telerehabilitation in Children With Heart Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congenital Abnormalities",
        "Pulmonary Arterial Hypertension (PAH)",
        "Orthotopic Heart Transplant",
        "Cardiac Rehabilitation",
        "Pediatric Cardiology",
        "Telehealth",
        "Telerehabilitation"
      ],
      "interventions": [
        {
          "name": "Pediatric Cardiac Telerehabilitation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fitness Tracker Only",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "10 Years to 25 Years"
      },
      "enrollment_count": 50,
      "start_date": "2023-05-01",
      "completion_date": "2025-02-01",
      "has_results": false,
      "last_update_posted_date": "2025-02-11",
      "last_synced_at": "2026-10-02T06:22:06.722Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06819059"
    }
  ]
}