{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure%2C+Normal+Ejection+Fraction&page=5",
    "query": {
      "condition": "Heart Failure, Normal Ejection Fraction",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 123,
    "total_pages": 13,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure%2C+Normal+Ejection+Fraction&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Heart+Failure%2C+Normal+Ejection+Fraction&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T04:13:06.476Z",
  "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": "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": "2026-11-15T04:13:06.476Z",
      "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": "NCT02275793",
      "title": "The Regulation of Pulmonary Vascular Resistance in Patients With Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diastolic Heart Failure",
        "Pulmonary Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Toledo Health Science Campus",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2011-09",
      "completion_date": "2015-09",
      "has_results": false,
      "last_update_posted_date": "2019-09-18",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 1,
      "location_summary": "Toledo, Ohio",
      "locations": [
        {
          "city": "Toledo",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02275793"
    },
    {
      "nct_id": "NCT00662116",
      "title": "Beginning a Randomized Evaluation of the AGE Breaker Alagebrium in Diastolic Heart Failure (BREAK-DHF-I)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diastolic Heart Failure"
      ],
      "interventions": [
        {
          "name": "alagebrium",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Synvista Therapeutics, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 160,
      "start_date": "2008-03",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2009-01-30",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 30,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 27 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00662116"
    },
    {
      "nct_id": "NCT04546555",
      "title": "Physiologic Accelerated Pacing as a Treatment in Patients With Heart Failure With Preserved Ejection Fraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure, Diastolic"
      ],
      "interventions": [
        {
          "name": "Dual chamber pacemaker",
          "type": "DEVICE"
        },
        {
          "name": "Accelerated Physiologic Pacing",
          "type": "OTHER"
        },
        {
          "name": "Nocturnal Pacing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Daniel L Lustgarten",
      "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": "2021-02-23",
      "completion_date": "2023-05-25",
      "has_results": false,
      "last_update_posted_date": "2023-07-28",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04546555"
    },
    {
      "nct_id": "NCT01901809",
      "title": "Diuretics and Dopamine in Heart Failure With Preserved Ejection Fraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure, Diastolic"
      ],
      "interventions": [
        {
          "name": "Furosemide",
          "type": "DRUG"
        },
        {
          "name": "Dopamine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2013-08",
      "completion_date": "2018-05",
      "has_results": true,
      "last_update_posted_date": "2018-08-16",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01901809"
    },
    {
      "nct_id": "NCT00206232",
      "title": "Novel Treatment for Diastolic Heart Failure in Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 48,
      "start_date": "2004-07",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2013-02-18",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00206232"
    },
    {
      "nct_id": "NCT05408559",
      "title": "Prevention of Age-associated Cardiac and Vascular Dysfunction Using Avmacol ES",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Diastolic Dysfunction",
        "Systolic Dysfunction",
        "Diastolic Heart Failure"
      ],
      "interventions": [
        {
          "name": "Sulforaphane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Texas Tech University Health Sciences Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "60 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2022-07-01",
      "completion_date": "2026-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-29",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05408559"
    },
    {
      "nct_id": "NCT06369298",
      "title": "Study of JK07 in Patients With Chronic Heart Failure",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure With Reduced Ejection Fraction",
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "JK07",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Salubris Biotherapeutics 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": 282,
      "start_date": "2024-03-28",
      "completion_date": "2026-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 51,
      "location_summary": "Alexander City, Alabama • Birmingham, Alabama • Huntsville, Alabama + 45 more",
      "locations": [
        {
          "city": "Alexander City",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06369298"
    },
    {
      "nct_id": "NCT03775577",
      "title": "Exercise Intolerance in Heart Failure",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure With Normal Ejection Fraction"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 130,
      "start_date": "2017-04-01",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2026-03-09",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03775577"
    },
    {
      "nct_id": "NCT06061549",
      "title": "Modulation of SERCA2a of Intra-myocytic Calcium Trafficking in Heart Failure With Preserved Ejection Fraction",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Heart Failure, Diastolic",
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "AAV1/SERCA2a",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sardocor Corp.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2023-08-24",
      "completion_date": "2029-08",
      "has_results": false,
      "last_update_posted_date": "2023-09-29",
      "last_synced_at": "2026-11-15T04:13:06.476Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina • Dallas, Texas",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06061549"
    }
  ]
}