{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure&page=4&q=HFrEF",
    "query": {
      "q": "HFrEF",
      "condition": "Heart Failure",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 169,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure&page=5&q=HFrEF&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure&page=3&q=HFrEF&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T00:43:03.982Z",
  "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": "NCT06763549",
      "title": "COR-INSIGHT: Optimizing Cardiovascular and Cardiopulmonary Outcomes with AI-Driven Multiplexed Indications Using COR ECG Wearable",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiopulmonary Failure",
        "Myocardial Infarction (MI)",
        "Heart Decompensation",
        "Heart Failure",
        "HFrEF - Heart Failure with Reduced Ejection Fraction",
        "HFpEF - Heart Failure with Preserved Ejection Fraction",
        "Syncopation",
        "Syncope",
        "Ischemic Cardiovascular Disease",
        "STEMI",
        "STEMI (ST Elevation MI)",
        "Atrial Fibrillation (AF)",
        "Atrial Enlargement",
        "LVF",
        "Conduction Defect",
        "Conduction Abnormalities",
        "Heart Block",
        "Valvular Diseases",
        "Cardiac Output, Low",
        "Stroke Volume",
        "Stroke Volume Variation",
        "Hyperkalemia",
        "Hypercalcemia",
        "Hypocalcemia",
        "LV Dysfunction",
        "QT Prolongation",
        "Sudden Cardiac Death Due to Cardiac Arrhythmia",
        "Ventricular Arrhythmia",
        "Pacing",
        "Pacing Induced Dyssynchrony",
        "Silent Ischemia",
        "Pericarditis",
        "Sleep Related Breathing Disorder",
        "RSA",
        "Apnea, Obstructive",
        "Cardiac Output Measurement",
        "Respiratory Impedance",
        "CRT And/or ICD",
        "Infarction",
        "Cardiomyopathies, Primary",
        "Hypertrophy"
      ],
      "interventions": [
        {
          "name": "SUBPROTOCOL A",
          "type": "DEVICE"
        },
        {
          "name": "SUBPROTOCOL B",
          "type": "DEVICE"
        },
        {
          "name": "SUBPROTOCOL C",
          "type": "DEVICE"
        },
        {
          "name": "SUBPROTOCOL D",
          "type": "DEVICE"
        },
        {
          "name": "SUBPROTOCOL E",
          "type": "DEVICE"
        },
        {
          "name": "SUBPROTOCOL F",
          "type": "DEVICE"
        },
        {
          "name": "SUBPROTOCOL G",
          "type": "DEVICE"
        },
        {
          "name": "SUBPROTOCOL H",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Peerbridge Health, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15000,
      "start_date": "2024-11-16",
      "completion_date": "2026-04-15",
      "has_results": false,
      "last_update_posted_date": "2025-01-08",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 1,
      "location_summary": "Melbourne, Florida",
      "locations": [
        {
          "city": "Melbourne",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06763549"
    },
    {
      "nct_id": "NCT05139615",
      "title": "A Study to Assess the Hemodynamic Effects, Safety, Tolerability, and Pharmacokinetics of Intravenous APD418 in Adult Participants With Heart Failure With Reduced Ejection Fraction",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Heart Failure With Reduced Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "APD418",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "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": 22,
      "start_date": "2021-12-28",
      "completion_date": "2022-09-19",
      "has_results": true,
      "last_update_posted_date": "2023-11-09",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 5,
      "location_summary": "Tampa, Florida • Peoria, Illinois • Houston, Texas + 2 more",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05139615"
    },
    {
      "nct_id": "NCT03877237",
      "title": "DETERMINE-reduced - Dapagliflozin Effect on Exercise Capacity Using a 6-minute Walk Test in Patients With Heart Failure With Reduced Ejection Fraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heart Failure With Reduced Ejection Fraction (HFrEF)"
      ],
      "interventions": [
        {
          "name": "Dapagliflozin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "150 Years",
        "sex": "ALL",
        "summary": "18 Years to 150 Years"
      },
      "enrollment_count": 313,
      "start_date": "2019-04-09",
      "completion_date": "2020-03-07",
      "has_results": true,
      "last_update_posted_date": "2021-05-05",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 23,
      "location_summary": "Alexander City, Alabama • Fairhope, Alabama • Fort Payne, Alabama + 19 more",
      "locations": [
        {
          "city": "Alexander City",
          "state": "Alabama"
        },
        {
          "city": "Fairhope",
          "state": "Alabama"
        },
        {
          "city": "Fort Payne",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03877237"
    },
    {
      "nct_id": "NCT05170165",
      "title": "A Pilot Study to Increase Utilization of GDMT in Patients With HFrEF",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Using a clinical decision software to provide specific recommendation of a medication at a certain dosage",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cedars-Sinai 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": 50,
      "start_date": "2022-01-12",
      "completion_date": "2023-09-25",
      "has_results": false,
      "last_update_posted_date": "2023-09-05",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05170165"
    },
    {
      "nct_id": "NCT05230732",
      "title": "Neuromodulation of Inflammation and Endothelial Function",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Systolic Heart Failure"
      ],
      "interventions": [
        {
          "name": "neuromodulation device",
          "type": "DEVICE"
        },
        {
          "name": "SHAM",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Oklahoma",
      "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": 158,
      "start_date": "2022-09-01",
      "completion_date": "2027-02-27",
      "has_results": false,
      "last_update_posted_date": "2026-08-11",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05230732"
    },
    {
      "nct_id": "NCT05275920",
      "title": "Building Electronic Tools To Enhance and Reinforce CArdiovascular REcommendations - Heart Failure (BETTER CARE-HF)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure",
        "Heart Failure With Reduced Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "Best Practice Alert (BPA)",
          "type": "OTHER"
        },
        {
          "name": "In-Basket Message",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2211,
      "start_date": "2022-04-28",
      "completion_date": "2022-10-26",
      "has_results": true,
      "last_update_posted_date": "2024-10-09",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05275920"
    },
    {
      "nct_id": "NCT02973594",
      "title": "Pulse Reduction On Beta-blocker and Ivabradine Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Dilated Cardiomyopathies, Idiopathic",
        "Heart Failure, Systolic",
        "Ventricular Remodeling",
        "Electrical Remodeling"
      ],
      "interventions": [
        {
          "name": "Ivabradine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2016-11",
      "completion_date": "2023-06-30",
      "has_results": false,
      "last_update_posted_date": "2023-12-20",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Columbus, Ohio",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02973594"
    },
    {
      "nct_id": "NCT03515655",
      "title": "A Study of Patients Hospitalized With Acute Heart Failure With Reduced Ejection Fraction (HFrEF)",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 99209,
      "start_date": "2018-02-21",
      "completion_date": "2018-12-31",
      "has_results": false,
      "last_update_posted_date": "2018-06-20",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 1,
      "location_summary": "Princeton, New Jersey",
      "locations": [
        {
          "city": "Princeton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03515655"
    },
    {
      "nct_id": "NCT06847906",
      "title": "Evaluating the Reach of Clinical Decision Support for Patients With Heart Failure",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Decision Support Systems, Clinical",
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Iteratively designed (new) clinical decision support tool for virtual visits",
          "type": "OTHER"
        },
        {
          "name": "Traditional clinical decision support tool",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2025-02-25",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06847906"
    },
    {
      "nct_id": "NCT06215911",
      "title": "A Study to Assess Safety & Effectiveness of Tovinontrine in Chronic Heart Failure With Reduced Ejection Fraction (Cycle-1-REF)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure",
        "Heart Failure With Reduced Ejection Fraction",
        "Cardiovascular Diseases",
        "Heart Diseases"
      ],
      "interventions": [
        {
          "name": "Tovinontrine (CRD-750)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cardurion Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 557,
      "start_date": "2024-02-13",
      "completion_date": "2025-10-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-10-04T00:43:03.982Z",
      "location_count": 26,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Beverly Hills, California + 23 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06215911"
    }
  ]
}