{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Block&page=11",
    "query": {
      "condition": "Heart Block",
      "page": 11
    },
    "page_size": 10
  },
  "pagination": {
    "page": 11,
    "page_size": 10,
    "total_count": 491,
    "total_pages": 50,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Block&page=12&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Block&page=10&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T07:33:15.220Z",
  "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": "NCT07874386",
      "title": "Wearable Tissue Oximetry During Arm Cuff Occlusion, Walking, and Standing Tests in Outpatients With Chronic Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure",
        "Chronic Heart Failure"
      ],
      "interventions": [
        {
          "name": "Argus Oximetry System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NIRSense Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 50,
      "start_date": "2023-11-14",
      "completion_date": "2026-03-15",
      "has_results": false,
      "last_update_posted_date": "2026-10-14",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 1,
      "location_summary": "Jackson, Mississippi",
      "locations": [
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07874386"
    },
    {
      "nct_id": "NCT06930417",
      "title": "Characterization and Natural History of Williams Syndrome and Other Chromosome 7q11.23 Variants",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Williams Beuren Syndrome",
        "Williams Syndrome",
        "Williams Beuren Region Duplication",
        "Dup7"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 2000,
      "start_date": "2024-10-21",
      "completion_date": "2045-10-21",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06930417"
    },
    {
      "nct_id": "NCT01232400",
      "title": "Study to Evaluate Esmolol (Brevibloc) to Manage Cardiac Function in Patients With Subarachnoid Hemorrhage",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Subarachnoid Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Esmolol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2014-07",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2015-01-08",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01232400"
    },
    {
      "nct_id": "NCT01170611",
      "title": "Prevention of Atrial Arrhythmia in Patients Without Atrioventricular (AV) Conduction Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sinus Node Dysfunction",
        "Brady Tachy Syndrome"
      ],
      "interventions": [
        {
          "name": "PACEMAKER SYMPHONY 2550",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "LivaNova",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2004-07",
      "completion_date": "2007-01",
      "has_results": false,
      "last_update_posted_date": "2010-07-27",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 10,
      "location_summary": "Birmingham, Alabama • Mesa, Arizona • Los Angeles, California + 7 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01170611"
    },
    {
      "nct_id": "NCT05147792",
      "title": "The CONFORM Pivotal Trial",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Stroke"
      ],
      "interventions": [
        {
          "name": "CLAAS",
          "type": "DEVICE"
        },
        {
          "name": "WATCHMAN left atrial appendage closure device / Amulet left atrial appendage occluder",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Conformal Medical, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1600,
      "start_date": "2022-05-26",
      "completion_date": "2031-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 79,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 67 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05147792"
    },
    {
      "nct_id": "NCT06777368",
      "title": "REdo tranScatheter Aortic Valve Replacement for Transcatheter aOrtic Valve failuRE",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Aortic Stenosis"
      ],
      "interventions": [
        {
          "name": "Medtronic TAV",
          "type": "DEVICE"
        },
        {
          "name": "Edwards TAV",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiovascular",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "105 Years",
        "sex": "ALL",
        "summary": "18 Years to 105 Years"
      },
      "enrollment_count": 225,
      "start_date": "2025-02-06",
      "completion_date": "2027-11",
      "has_results": false,
      "last_update_posted_date": "2026-09-24",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 71,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 58 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06777368"
    },
    {
      "nct_id": "NCT05069558",
      "title": "Comparing PFO Outcomes of the Occlutech Flex II PFO Occluder to Standard of Care PFO Occlusion",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke",
        "Patent Foramen Ovale",
        "PFO"
      ],
      "interventions": [
        {
          "name": "Investigational PFO Closure Device",
          "type": "DEVICE"
        },
        {
          "name": "Standard of Care PFO Closure Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Occlutech International AB",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 450,
      "start_date": "2022-05-09",
      "completion_date": "2029-11",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 27,
      "location_summary": "Phoenix, Arizona • Stanford, California • Thousand Oaks, California + 20 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Thousand Oaks",
          "state": "California"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Littleton",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05069558"
    },
    {
      "nct_id": "NCT03157297",
      "title": "Micra Atrial Tracking Using a Ventricular Accelerometer Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Atrioventricular Conduction Block"
      ],
      "interventions": [
        {
          "name": "MARVEL algorithm",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2017-07-10",
      "completion_date": "2017-11-24",
      "has_results": false,
      "last_update_posted_date": "2018-10-26",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 4,
      "location_summary": "Jacksonville, Florida • Miami, Florida • Atlanta, Georgia + 1 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03157297"
    },
    {
      "nct_id": "NCT04582396",
      "title": "Stellate Ganglion Blockade to Reduce Cardiac Anxiety and PTSD Symptoms in Cardiac Arrest Survivors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PTSD",
        "Cardiac Arrest",
        "Anxiety and Fear",
        "Sleep Disturbance",
        "Health Behavior"
      ],
      "interventions": [
        {
          "name": "stellate ganglion block injection",
          "type": "PROCEDURE"
        },
        {
          "name": "Normal saline injection",
          "type": "PROCEDURE"
        },
        {
          "name": "Psychoeducation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 1,
      "start_date": "2021-03-11",
      "completion_date": "2021-04-19",
      "has_results": true,
      "last_update_posted_date": "2024-07-31",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04582396"
    },
    {
      "nct_id": "NCT01314313",
      "title": "PARTNER II Trial: Placement of AoRTic TraNscathetER Valves II - XT Intermediate and High Risk",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Symptomatic Severe Aortic Stenosis"
      ],
      "interventions": [
        {
          "name": "TAVR Implantation with SAPIEN XT",
          "type": "DEVICE"
        },
        {
          "name": "SAVR Implantation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Edwards Lifesciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 2032,
      "start_date": "2011-03",
      "completion_date": "2024-01-17",
      "has_results": true,
      "last_update_posted_date": "2024-03-07",
      "last_synced_at": "2026-10-22T07:33:15.220Z",
      "location_count": 55,
      "location_summary": "Little Rock, Arkansas • La Jolla, California • Los Angeles, California + 46 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01314313"
    }
  ]
}