{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=HEARTS+classes&page=8",
    "query": {
      "intervention": "HEARTS classes",
      "page": 8
    },
    "page_size": 10
  },
  "pagination": {
    "page": 8,
    "page_size": 10,
    "total_count": 192,
    "total_pages": 20,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=HEARTS+classes&page=9&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=HEARTS+classes&page=7&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-27T22:20:08.622Z",
  "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": "NCT00267098",
      "title": "Biventricular Versus Right Ventricular Pacing in Heart Failure Patients With Atrioventricular Block (BLOCK HF)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrioventricular Block",
        "Heart Diseases"
      ],
      "interventions": [
        {
          "name": "Cardiac Resynchronization Therapy (CRT)",
          "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": 918,
      "start_date": "2003-12",
      "completion_date": "2013-03",
      "has_results": true,
      "last_update_posted_date": "2014-03-26",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 51,
      "location_summary": "Anchorage, Alaska • Peoria, Arizona • Little Rock, Arkansas + 48 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00267098"
    },
    {
      "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": "2026-10-27T22:20:08.622Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00996021"
    },
    {
      "nct_id": "NCT01326624",
      "title": "Study of the Wearable Defibrillator in Heart-Failure Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure",
        "Ventricular Dysfunction",
        "Sudden Death",
        "Sudden Cardiac Arrest",
        "Ventricular Tachycardia",
        "Ventricular Fibrillation"
      ],
      "interventions": [
        {
          "name": "wearable defibrillator (LifeVest)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Zoll Medical Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2011-03",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2017-12-06",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01326624"
    },
    {
      "nct_id": "NCT02693262",
      "title": "Comparing Rate Response With CLS Versus Accelerometer ICD Settings in Heart Failure Patients With BIOTRONIK CRT-Ds",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure",
        "ICD",
        "Chronotropic Incompetence"
      ],
      "interventions": [
        {
          "name": "CLS Mode on Biotronik CRT-D",
          "type": "DEVICE"
        },
        {
          "name": "Accelerometer Mode on Biotronik CRT-D",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 12,
      "start_date": "2016-07",
      "completion_date": "2020-07-24",
      "has_results": true,
      "last_update_posted_date": "2021-08-05",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02693262"
    },
    {
      "nct_id": "NCT04089059",
      "title": "PROACTIVE-HF IDE Trial Heart Failure NYHA Class III",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure NYHA Class III"
      ],
      "interventions": [
        {
          "name": "Cordella™ Pulmonary Artery Sensor System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Endotronix, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 738,
      "start_date": "2020-01-10",
      "completion_date": "2028-04",
      "has_results": true,
      "last_update_posted_date": "2026-07-24",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 70,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 57 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Rancho Mirage",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04089059"
    },
    {
      "nct_id": "NCT01357850",
      "title": "A Multi-center, Placebo-controlled Study to Evaluate the Safety of GSK716155 and Its Effects on Myocardial Metabolism, Myocardial Function, and Exercise Capacity in Patients With NYHA Class II/III Congestive Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure, Congestive"
      ],
      "interventions": [
        {
          "name": "GSK716155",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 82,
      "start_date": "2010-09-15",
      "completion_date": "2012-09-18",
      "has_results": true,
      "last_update_posted_date": "2017-08-17",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 12,
      "location_summary": "Savannah, Georgia • Metairie, Louisiana • Auburn, Maine + 9 more",
      "locations": [
        {
          "city": "Savannah",
          "state": "Georgia"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        },
        {
          "city": "Auburn",
          "state": "Maine"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01357850"
    },
    {
      "nct_id": "NCT01335880",
      "title": "Helping People to Exercise Regularly",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Heart Disease"
      ],
      "interventions": [
        {
          "name": "Coupons for use within the next week",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Coupons for use within the next 3 months",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 117,
      "start_date": "2011-04",
      "completion_date": "2012-07",
      "has_results": false,
      "last_update_posted_date": "2012-10-18",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01335880"
    },
    {
      "nct_id": "NCT00232180",
      "title": "A Comparison Of Outcomes In Patients In New York Heart Association (NYHA) Class II Heart Failure When Treated With Eplerenone Or Placebo In Addition To Standard Heart Failure Medicines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Eplerenone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer's Upjohn has merged with Mylan to form Viatris Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 2743,
      "start_date": "2006-03",
      "completion_date": "2012-01",
      "has_results": true,
      "last_update_posted_date": "2020-12-22",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 51,
      "location_summary": "Phoenix, Arizona • Loma Linda, California • Merced, California + 37 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Merced",
          "state": "California"
        },
        {
          "city": "Stockton",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00232180"
    },
    {
      "nct_id": "NCT00103519",
      "title": "Study of DITPA in Patients With Congestive Heart Failure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure, Congestive"
      ],
      "interventions": [
        {
          "name": "DITPA (3,5-diiodothyropropionic acid)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Titan Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 86,
      "start_date": "2004-12",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2013-03-29",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 22,
      "location_summary": "Huntsville, Alabama • Peoria, Arizona • Tucson, Arizona + 18 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00103519"
    },
    {
      "nct_id": "NCT03623165",
      "title": "PRODIGY Registry in NYHA Class III Heart Failure Patients",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure NYHA Class III"
      ],
      "interventions": [
        {
          "name": "Cordella™ Heart Failure System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Endotronix, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2018-08-01",
      "completion_date": "2019-08-15",
      "has_results": false,
      "last_update_posted_date": "2019-08-19",
      "last_synced_at": "2026-10-27T22:20:08.622Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • San Francisco, California • Lebanon, New Hampshire + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        },
        {
          "city": "Gonzales",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03623165"
    }
  ]
}