{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Echocardiogram&page=21",
    "query": {
      "intervention": "Echocardiogram",
      "page": 21
    },
    "page_size": 10
  },
  "pagination": {
    "page": 21,
    "page_size": 10,
    "total_count": 835,
    "total_pages": 84,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Echocardiogram&page=22&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Echocardiogram&page=20&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-19T11:10:20.174Z",
  "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": "NCT04537871",
      "title": "Cardiovascular Reserve Evaluation in Survivors of Transplant, CREST Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "Acute Myeloid Leukemia",
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Hodgkin Lymphoma",
        "Myelodysplastic Syndrome",
        "Non-Hodgkin Lymphoma",
        "Plasma Cell Myeloma"
      ],
      "interventions": [
        {
          "name": "Bioelectric Impedance Analysis",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Cardiopulmonary Exercise Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Physical Performance Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Pulmonary Function Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Ultrasound",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "City of Hope 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": 350,
      "start_date": "2020-11-18",
      "completion_date": "2027-05-25",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04537871"
    },
    {
      "nct_id": "NCT00995384",
      "title": "Cardiac Computed Tomography (CT) Scan Compared to Transesophageal Echocardiogram (TEE) in Endocarditis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Endocarditis"
      ],
      "interventions": [
        {
          "name": "CT Scan",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Corewell Health East",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "98 Years",
        "sex": "ALL",
        "summary": "18 Years to 98 Years"
      },
      "enrollment_count": 2,
      "start_date": "2009-10",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2023-03-28",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 1,
      "location_summary": "Royal Oak, Michigan",
      "locations": [
        {
          "city": "Royal Oak",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00995384"
    },
    {
      "nct_id": "NCT03719612",
      "title": "DEF-315 Better Accuracy in Ejection Fraction (EF) Assessment With DEFINITY",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cardiac Disease"
      ],
      "interventions": [
        {
          "name": "DEFINITY®",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lantheus Medical Imaging",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 160,
      "start_date": "2018-12-28",
      "completion_date": "2020-01-09",
      "has_results": true,
      "last_update_posted_date": "2021-01-28",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 15,
      "location_summary": "Tucson, Arizona • Los Angeles, California • Orange, California + 12 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03719612"
    },
    {
      "nct_id": "NCT05873387",
      "title": "Development of an Algorithm to Detect Pulmonary Hypertension Using an Electronic Stethoscope",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Use of Eko DUO stethoscope (paired ECG/PCG)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "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": 2420,
      "start_date": "2023-07-12",
      "completion_date": "2027-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 3,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05873387"
    },
    {
      "nct_id": "NCT03551600",
      "title": "Splanchnic and Renal Tissue Oxygenation During Enteral Feedings in Neonates With Patent Ductus Arteriosus",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infant, Premature",
        "Congenital Heart Disease",
        "Patent Ductus Arteriosus",
        "Necrotizing Enterocolitis"
      ],
      "interventions": [
        {
          "name": "Near-infrared spectroscopy (NIRS)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Days",
        "maximum_age": "6 Months",
        "sex": "ALL",
        "summary": "12 Days to 6 Months"
      },
      "enrollment_count": 64,
      "start_date": "2015-10",
      "completion_date": "2022-06-30",
      "has_results": false,
      "last_update_posted_date": "2023-04-04",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 3,
      "location_summary": "Murray, Utah • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03551600"
    },
    {
      "nct_id": "NCT00589836",
      "title": "Assessment of Left Ventricular Torsion by Echocardiography Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertrophic Cardiomyopathy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 20,
      "start_date": "2005-06",
      "completion_date": "2008-04",
      "has_results": true,
      "last_update_posted_date": "2018-02-05",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00589836"
    },
    {
      "nct_id": "NCT00883636",
      "title": "Cardiomyopathy in Steroid-resistant Nephrotic Syndrome: Impact of Focal Segmental Glomerulosclerosis",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Focal Segmental Glomerulosclerosis",
        "Nephrotic Syndrome",
        "Steroid Resistant Nephrotic Syndrome",
        "Chronic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Cardiovascular Assessment",
          "type": "OTHER"
        },
        {
          "name": "Renal Assessment",
          "type": "OTHER"
        },
        {
          "name": "Genetic Evaluation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "6 Months to 21 Years"
      },
      "enrollment_count": 4,
      "start_date": "2008-10",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2013-06-19",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 1,
      "location_summary": "New Hyde Park, New York",
      "locations": [
        {
          "city": "New Hyde Park",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00883636"
    },
    {
      "nct_id": "NCT02068794",
      "title": "MV-NIS Infected Mesenchymal Stem Cells in Treating Recurrent Ovarian, Primary Peritoneal or Fallopian Tube Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Fallopian Tube Clear Cell Adenocarcinoma",
        "Fallopian Tube Endometrioid Adenocarcinoma",
        "Fallopian Tube Mucinous Adenocarcinoma",
        "Fallopian Tube Serous Adenocarcinoma",
        "Fallopian Tube Transitional Cell Carcinoma",
        "Fallopian Tube Undifferentiated Carcinoma",
        "Malignant Ovarian Brenner Tumor",
        "Ovarian Clear Cell Adenocarcinoma",
        "Ovarian Endometrioid Adenocarcinoma",
        "Ovarian Mucinous Adenocarcinoma",
        "Ovarian Seromucinous Carcinoma",
        "Ovarian Serous Adenocarcinoma",
        "Ovarian Transitional Cell Carcinoma",
        "Ovarian Undifferentiated Carcinoma",
        "Primary Peritoneal Serous Adenocarcinoma",
        "Recurrent Fallopian Tube Carcinoma",
        "Recurrent Ovarian Carcinoma",
        "Recurrent Primary Peritoneal Carcinoma"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Mesenchymal Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Oncolytic Measles Virus Encoding Thyroidal Sodium Iodide Symporter",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Chest Radiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Single Photon Tomography and Computed Tomography Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "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": 34,
      "start_date": "2014-04-25",
      "completion_date": "2027-03-15",
      "has_results": true,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02068794"
    },
    {
      "nct_id": "NCT00204945",
      "title": "Catheterization Laboratory Study: Acute Responses in Diastolic Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure, Congestive"
      ],
      "interventions": [
        {
          "name": "nesiritide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 15,
      "start_date": "2005-02",
      "completion_date": "2007-06-20",
      "has_results": false,
      "last_update_posted_date": "2019-02-08",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00204945"
    },
    {
      "nct_id": "NCT06007872",
      "title": "Intracardiac Echocardiography Guided Watchman Device Implant",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Left Atrial Appendage Thrombosis"
      ],
      "interventions": [
        {
          "name": "Intracardiac Echocardiography (ICE)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2022-12-02",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-10-21",
      "last_synced_at": "2026-10-19T11:10:20.174Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06007872"
    }
  ]
}