{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Cardiac+Chambers&page=2",
    "query": {
      "condition": "Cardiac Chambers",
      "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=Cardiac+Chambers&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-26T18:33:43.171Z",
  "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": "NCT00669552",
      "title": "Intracardiac T-wave Alternans and Ischemia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ischemia"
      ],
      "interventions": [
        {
          "name": "Percutaneous coronary intervention",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2008-08",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2013-04-19",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00669552"
    },
    {
      "nct_id": "NCT01535248",
      "title": "Echo Detection of Endoscopic Retrograde Cholangiopancreatography (ERCP) Air Embolus",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Air Embolism as A Complication of Medical Care"
      ],
      "interventions": [
        {
          "name": "Transthoracic Echocardiography",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2012-03-07",
      "completion_date": "2015-12-30",
      "has_results": false,
      "last_update_posted_date": "2023-09-06",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01535248"
    },
    {
      "nct_id": "NCT01522651",
      "title": "Study to Evaluate the Effect of Ranolazine and Dronedarone When Given Alone and in Combination in Patients With Paroxysmal Atrial Fibrillation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Ranolazine",
          "type": "DRUG"
        },
        {
          "name": "Dronedarone",
          "type": "DRUG"
        },
        {
          "name": "Ranolazine placebo",
          "type": "DRUG"
        },
        {
          "name": "Dronedarone placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 134,
      "start_date": "2012-01-24",
      "completion_date": "2014-03-10",
      "has_results": true,
      "last_update_posted_date": "2020-11-06",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 15,
      "location_summary": "Beverly Hills, California • Newport Beach, California • San Francisco, California + 12 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01522651"
    },
    {
      "nct_id": "NCT05935007",
      "title": "Aveir DR Real-World Evidence Post-Approval Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiac Pacemaker",
        "Arrythmia",
        "Bradycardia"
      ],
      "interventions": [
        {
          "name": "Aveir DR Leadless Pacemaker System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1805,
      "start_date": "2023-10-31",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-20",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "Sylmar, California",
      "locations": [
        {
          "city": "Sylmar",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05935007"
    },
    {
      "nct_id": "NCT00001894",
      "title": "A Comparison of Two Treatments: Pacemaker and Percutaneous Transluminal Septal Ablation for Hypertrophic Cardiomyopathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypertrophic Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "pacemaker implantation",
          "type": "PROCEDURE"
        },
        {
          "name": "percutaneous transluminal septal ablation (PTSA)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 70,
      "start_date": "1999-08",
      "completion_date": "2002-09",
      "has_results": false,
      "last_update_posted_date": "2006-07-04",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001894"
    },
    {
      "nct_id": "NCT03245255",
      "title": "Noninvasive Real-time Intracardiac Pressure Measurements Using Subharmonic Ultrasound",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cardiac Catheterization",
        "Blood Pressure",
        "Heart Ventricles",
        "Echocardiography",
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Sonazoid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2017-12-04",
      "completion_date": "2023-06-07",
      "has_results": true,
      "last_update_posted_date": "2024-05-29",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03245255"
    },
    {
      "nct_id": "NCT07137455",
      "title": "EDEN Intracardiac Electrogram Recording and Classifying System",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ventricular Arrhythmia"
      ],
      "interventions": [
        {
          "name": "EDEN Intracardiac Electrogram Recording and Classifying System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "21 Years to 100 Years"
      },
      "enrollment_count": 50,
      "start_date": "2026-07-01",
      "completion_date": "2026-11-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07137455"
    },
    {
      "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": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06007872"
    },
    {
      "nct_id": "NCT02028143",
      "title": "ICE: Intracardiac Ultrasound Within the Left Atrium During Radiofrequency Ablation of Nonvalvular Atrial Fibrillation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Biosense Webster irrigated tip catheter",
          "type": "DEVICE"
        },
        {
          "name": "Pulmonary vein isolation",
          "type": "PROCEDURE"
        },
        {
          "name": "ICE catheter placed through one of two existing 8F sheaths",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Gregory Jones",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2013-11",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2018-04-24",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 1,
      "location_summary": "Kingsport, Tennessee",
      "locations": [
        {
          "city": "Kingsport",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02028143"
    },
    {
      "nct_id": "NCT00916435",
      "title": "Study of the Implantable Cardioverter Defibrillator (ICD) Intracardiac Electrograms",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congestive Heart Failure",
        "Sudden Cardiac Death",
        "Arrhythmia",
        "Cardiomyopathies"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 630,
      "start_date": "2005-03",
      "completion_date": "2011-12",
      "has_results": false,
      "last_update_posted_date": "2015-04-21",
      "last_synced_at": "2026-06-26T18:33:43.171Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • St Louis, Missouri",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00916435"
    }
  ]
}