{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure&page=4&q=HFpEF",
    "query": {
      "q": "HFpEF",
      "condition": "Heart Failure",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 251,
    "total_pages": 26,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure&page=5&q=HFpEF&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure&page=3&q=HFpEF&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T22:40:00.332Z",
  "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": "NCT03629340",
      "title": "Metformin for Pulmonary Hypertension HFpEF",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Hypertension",
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2019-02-26",
      "completion_date": "2026-02-27",
      "has_results": false,
      "last_update_posted_date": "2026-06-29",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 2,
      "location_summary": "San Francisco, California • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03629340"
    },
    {
      "nct_id": "NCT04757584",
      "title": "Pilot Deprescribing N-of-1 Trials for Beta-blockers in HFpEF",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure",
        "Heart Failure, Diastolic",
        "Heart Failure With Preserved Ejection Fraction",
        "Cardiac Failure",
        "Heart Disease"
      ],
      "interventions": [
        {
          "name": "Beta blockers",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2021-04-01",
      "completion_date": "2023-04-28",
      "has_results": true,
      "last_update_posted_date": "2024-04-09",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04757584"
    },
    {
      "nct_id": "NCT04154878",
      "title": "2 New Measurements Used to Describe the Filling Phase of the Left Ventricle (LV).",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diastolic Heart Failure",
        "Left Ventricular Diastolic Dysfunction",
        "Left Ventricular Diastolic Collapse"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "AdventHealth",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "45 Years to 85 Years"
      },
      "enrollment_count": 111,
      "start_date": "2019-10-30",
      "completion_date": "2023-06-21",
      "has_results": false,
      "last_update_posted_date": "2023-06-29",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04154878"
    },
    {
      "nct_id": "NCT03276728",
      "title": "Study to Evaluate the Safety and Tolerability of AMG 986 in Healthy Volunteers and Heart Failure Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Heart Failure",
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "AMG 986 IV",
          "type": "DRUG"
        },
        {
          "name": "AMG 986 PO",
          "type": "DRUG"
        },
        {
          "name": "Placebo PO",
          "type": "DRUG"
        },
        {
          "name": "Placebo IV",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 182,
      "start_date": "2016-08-12",
      "completion_date": "2019-04-18",
      "has_results": true,
      "last_update_posted_date": "2022-08-08",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 8,
      "location_summary": "Anaheim, California • Tustin, California • Jacksonville, Florida + 5 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Tustin",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03276728"
    },
    {
      "nct_id": "NCT04111536",
      "title": "Developing Oral LT3 Therapy for Heart Failure - HFpEF",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction",
        "Low Triiodothyronine Syndrome"
      ],
      "interventions": [
        {
          "name": "liothyronine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "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": "2020-03-08",
      "completion_date": "2023-10-31",
      "has_results": true,
      "last_update_posted_date": "2025-01-08",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04111536"
    },
    {
      "nct_id": "NCT04592445",
      "title": "Endovascular Ablation of the Right Greater Splanchnic Nerve in Subjects Having HFpEF",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction (HFpEF"
      ],
      "interventions": [
        {
          "name": "Greater Splanchnic Nerve Ablation",
          "type": "DEVICE"
        },
        {
          "name": "Sham Control",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Axon Therapies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2020-12-18",
      "completion_date": "2029-08-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-21",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 24,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • La Jolla, California + 17 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04592445"
    },
    {
      "nct_id": "NCT06775886",
      "title": "Effect of Personalized Accelerated Pacing in Symptomatic Patients With Non-Obstructive Hypertrophic Cardiomyopathy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Non-obstructive Hypertrophic Cardiomyopathy",
        "Hypertrophic Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "myPACE+ algorithm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Montefiore 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": 1,
      "start_date": "2025-10-02",
      "completion_date": "2025-10-23",
      "has_results": false,
      "last_update_posted_date": "2026-02-11",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06775886"
    },
    {
      "nct_id": "NCT07083011",
      "title": "A Study of 68Ga-Fibroblast Activation Protein Inhibitor (FAPI) Positron Emission Tomography in Heart Failure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "68Ga-FAPI (gallium-68-labeled fibroblast activation protein inhibitor)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2025-11-01",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-07-08",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07083011"
    },
    {
      "nct_id": "NCT03506412",
      "title": "Circulating NEP and NEP Inhibition Study in Heart Failure With Preserved Ejection Fraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "Entresto™ 49Mg-51 mg tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2018-06-25",
      "completion_date": "2021-03-23",
      "has_results": true,
      "last_update_posted_date": "2022-02-04",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03506412"
    },
    {
      "nct_id": "NCT07202000",
      "title": "EXercise and Activin Inhibition to Modulate InflammatioN Effects on Heart Failure and Cognition (EXAMINE-HFC)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "Activin ligand-trap biological therapy",
          "type": "DRUG"
        },
        {
          "name": "Placebo, Normal Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 48,
      "start_date": "2026-06-03",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2026-07-09",
      "last_synced_at": "2026-10-13T22:40:00.332Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07202000"
    }
  ]
}