{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Left+Sided+Heart+Failure",
    "query": {
      "condition": "Left Sided Heart Failure"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 287,
    "total_pages": 29,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Left+Sided+Heart+Failure&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T06:48:00.279Z",
  "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": "NCT00768066",
      "title": "The Transendocardial Autologous Cells (hMSC or hBMC) in Ischemic Heart Failure Trial (TAC-HFT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Stem Cell Transplantation",
        "Ventricular Dysfunction, Left"
      ],
      "interventions": [
        {
          "name": "Autologous human mesenchymal cells (hMSCs)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Autologous human bone marrow cells (hBMCs)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "21 Years to 90 Years"
      },
      "enrollment_count": 65,
      "start_date": "2008-08",
      "completion_date": "2013-09",
      "has_results": true,
      "last_update_posted_date": "2015-12-14",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00768066"
    },
    {
      "nct_id": "NCT02362646",
      "title": "Safety & Efficacy of Intramyocardial Injection of Mesenchymal Precursor Cells on Myocardial Function in LVAD Recipients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure",
        "Cardiomyopathy",
        "Ventricular Dysfunction"
      ],
      "interventions": [
        {
          "name": "MPC Intramyocardial Injection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Control Solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Annetine Gelijns",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 159,
      "start_date": "2015-07",
      "completion_date": "2019-08-23",
      "has_results": true,
      "last_update_posted_date": "2019-11-26",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 16,
      "location_summary": "Los Angeles, California • Stanford, California • Baltimore, Maryland + 13 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02362646"
    },
    {
      "nct_id": "NCT04264182",
      "title": "STandardized Ultra-conservative Or Physician-directed ICD Programming for Continuous Flow LVAD Support",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure, Systolic",
        "Left Ventricular Assist Device",
        "ICD"
      ],
      "interventions": [
        {
          "name": "ICD programming",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 11,
      "start_date": "2020-02-03",
      "completion_date": "2022-04-04",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04264182"
    },
    {
      "nct_id": "NCT03247829",
      "title": "Investigation to Optimize Hemodynamic Management of Left Ventricular Assist Devices Using the CardioMEMS™",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Hemodynamic management using CardioMEMS HF 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": 101,
      "start_date": "2017-08-24",
      "completion_date": "2020-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-04-26",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 23,
      "location_summary": "La Jolla, California • Los Angeles, California • San Diego, California + 18 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03247829"
    },
    {
      "nct_id": "NCT00384722",
      "title": "EASYTRAK 3 Downsize Lead",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "EASYTRAK 3 Downsize Lead",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "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": "2006-03",
      "completion_date": "2008-05",
      "has_results": false,
      "last_update_posted_date": "2009-06-24",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00384722"
    },
    {
      "nct_id": "NCT05327062",
      "title": "Cardiac Resynchronization Therapy Delivery Guided Non-Invasive Electrical and Venous Anatomy Assessment",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiac Resynchronization Therapy",
        "Chronic Heart Failure",
        "Left Bundle-Branch Block"
      ],
      "interventions": [
        {
          "name": "CRT implantation guided by XSpline, a non-invasive electrical and venous anatomy assessment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "XSpline S.p.A.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2023-03-06",
      "completion_date": "2025-09",
      "has_results": false,
      "last_update_posted_date": "2024-10-24",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 4,
      "location_summary": "Chicago, Illinois • Boston, Massachusetts • Durham, North Carolina",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05327062"
    },
    {
      "nct_id": "NCT03549559",
      "title": "Imaging Histone Deacetylase in the Heart",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure With Normal Ejection Fraction",
        "Left Ventricular Hypertrophy",
        "Aortic Valve Stenosis",
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "11C-Martinostat",
          "type": "DRUG"
        },
        {
          "name": "PET-MRI",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 96,
      "start_date": "2018-09-07",
      "completion_date": "2026-09-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-22",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03549559"
    },
    {
      "nct_id": "NCT01630408",
      "title": "The Effects of Active VItamin D on Left Atrial Volume Index",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Paricalcitol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "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": "2014-03",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2013-08-16",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01630408"
    },
    {
      "nct_id": "NCT02205359",
      "title": "AdaptResponse Clinical Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure With Left Bundle Branch Block"
      ],
      "interventions": [
        {
          "name": "aCRT ON",
          "type": "DEVICE"
        },
        {
          "name": "aCRT OFF",
          "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": 3797,
      "start_date": "2014-08",
      "completion_date": "2022-11-02",
      "has_results": true,
      "last_update_posted_date": "2023-11-29",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 90,
      "location_summary": "Mesa, Arizona • Phoenix, Arizona • Little Rock, Arkansas + 76 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02205359"
    },
    {
      "nct_id": "NCT01242722",
      "title": "Evaluation of Left Ventricular Autothreshold, Phase Two",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "CRT-D",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2010-11",
      "completion_date": "2011-03",
      "has_results": false,
      "last_update_posted_date": "2012-10-03",
      "last_synced_at": "2026-07-23T06:48:00.279Z",
      "location_count": 1,
      "location_summary": "Stuebenville, Ohio",
      "locations": [
        {
          "city": "Stuebenville",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01242722"
    }
  ]
}