{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ketone+ester",
    "query": {
      "intervention": "ketone ester"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 40,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ketone+ester&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T15:05:11.482Z",
  "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": "NCT07227363",
      "title": "Symptoms of Polycystic Ovarian Syndrome Ameliorated by Keto-Adaptation Pilot",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PCOS (Polycystic Ovary Syndrome)"
      ],
      "interventions": [
        {
          "name": "Ketogenic diet",
          "type": "OTHER"
        },
        {
          "name": "Exogenous Ketone Supplement",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2026-12-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-08",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07227363"
    },
    {
      "nct_id": "NCT07289165",
      "title": "Comparison of Pharmacokinetic Responses to Three Ketone Esters",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "Dietary Supplement containing Tri-betahydroxybutyrin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Dietary Supplement containing a ketone mono Ester",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Dietary supplement containing a ketone salt",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "NeuroEnergy Ventures, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "30 Years to 70 Years"
      },
      "enrollment_count": 18,
      "start_date": "2025-07-15",
      "completion_date": "2026-02",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Canfield, Ohio",
      "locations": [
        {
          "city": "Canfield",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07289165"
    },
    {
      "nct_id": "NCT04275453",
      "title": "Comparison of the Short-Term Effect of Dietary Carbohydrate Restriction Versus Exogenous Ketone Supplementation on Myocardial Glucose Suppression and Timing to Achieve a State of Ketosis Using FDG PET/CT Serial Imaging",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "FDG",
          "type": "DRUG"
        },
        {
          "name": "Ketone Drink",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ketogenetic Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2020-01-05",
      "completion_date": "2023-01-05",
      "has_results": false,
      "last_update_posted_date": "2020-07-16",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04275453"
    },
    {
      "nct_id": "NCT05686083",
      "title": "Pharmacokinetics of Two Fatty Acid Ketone Esters",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pharmacokinetics"
      ],
      "interventions": [
        {
          "name": "C6 ketone di-ester",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Novel ketone di-ester",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "BHB Therapeutics, Ireland LTD",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 12,
      "start_date": "2023-01-30",
      "completion_date": "2023-03-31",
      "has_results": false,
      "last_update_posted_date": "2023-04-20",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Addison, Illinois",
      "locations": [
        {
          "city": "Addison",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05686083"
    },
    {
      "nct_id": "NCT04079907",
      "title": "Ketone Supplementation in Adolescents Post-Concussion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Concussion, Mild",
        "Concussion, Severe",
        "Concussion, Brain",
        "Concussive Injury",
        "Sport Injury",
        "Sports Injuries in Children"
      ],
      "interventions": [
        {
          "name": "Ketone",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "13 Years to 19 Years"
      },
      "enrollment_count": 5,
      "start_date": "2020-03-20",
      "completion_date": "2022-04-27",
      "has_results": false,
      "last_update_posted_date": "2022-05-10",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04079907"
    },
    {
      "nct_id": "NCT06108076",
      "title": "Acute and Chronic Effects of Oral Ketones in Subjects With HFrEF and Diabetes",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Type 2 Diabetes",
        "Heart Failure, Reduced Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "Ketone Monoester (KE)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 10,
      "start_date": "2024-01-16",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06108076"
    },
    {
      "nct_id": "NCT05924802",
      "title": "Physiological Effects Ketone Ester in Heart",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Ketone Ester",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "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": 50,
      "start_date": "2024-06-01",
      "completion_date": "2029-09",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05924802"
    },
    {
      "nct_id": "NCT04737694",
      "title": "Ketone Supplements and Substrate Oxidation and Physical Performance",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ketosis",
        "Glucose Metabolism"
      ],
      "interventions": [
        {
          "name": "Ketone ester",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Glucose",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "United States Army Research Institute of Environmental Medicine",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 15,
      "start_date": "2020-11-01",
      "completion_date": "2022-09-01",
      "has_results": false,
      "last_update_posted_date": "2021-10-14",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Natick, Massachusetts",
      "locations": [
        {
          "city": "Natick",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04737694"
    },
    {
      "nct_id": "NCT05778695",
      "title": "Brain Small Chain Fatty Acid Metabolism in Parkinson Disease: Ketones",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson Disease",
        "Lewy Body Dementia",
        "Parkinson Disease Dementia"
      ],
      "interventions": [
        {
          "name": "Ketone Ester (R)-3-Hydroxybutyl (R)-3-Hydroxybutyrate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2023-03-09",
      "completion_date": "2023-10-04",
      "has_results": true,
      "last_update_posted_date": "2025-02-12",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 2,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05778695"
    },
    {
      "nct_id": "NCT04633460",
      "title": "Acute Effects of Exogenous Ketone Ester Administration in Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "Ketone ester",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "placebo drink",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 26,
      "start_date": "2020-10-06",
      "completion_date": "2023-10-16",
      "has_results": true,
      "last_update_posted_date": "2024-11-27",
      "last_synced_at": "2026-09-03T15:05:11.482Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04633460"
    }
  ]
}