{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ketone+ester&page=2",
    "query": {
      "intervention": "Ketone ester",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ketone+ester&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-23T07:22:44.417Z",
  "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": "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": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04633460"
    },
    {
      "nct_id": "NCT06868719",
      "title": "Ketone Ester And Salt (KEAS) in Older Adults",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Salt; Excess",
        "Hypertension",
        "Aging",
        "Inflammation",
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "No Salt, No β-OHB",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "High Salt, No β-OHB",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "High Salt, High β-OHB",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 35,
      "start_date": "2025-03-06",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Bloomington, Indiana",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06868719"
    },
    {
      "nct_id": "NCT07097506",
      "title": "Effect of Ketone Esters on Liver Fat Content and Metabolic Function",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "MASLD - Metabolic Dysfunction-Associated Steatotic Liver Disease",
        "Obesity",
        "Overweight (BMI > 25)"
      ],
      "interventions": [
        {
          "name": "bis-octanoyl (R)-1,3-butanediol (C8 ketone di-ester)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 40,
      "start_date": "2025-09-26",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07097506"
    },
    {
      "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": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Addison, Illinois",
      "locations": [
        {
          "city": "Addison",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05686083"
    },
    {
      "nct_id": "NCT04616781",
      "title": "Ketone Ester Intervention in Alcohol Use Disorder",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Alcohol Drinking",
        "Alcohol Use Disorder"
      ],
      "interventions": [
        {
          "name": "Ketone Ester \"(R)-3-hydroxybutyl (R)-3-hydroxybutyrate\"",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Isocaloric dextrose placebo",
          "type": "DRUG"
        },
        {
          "name": "Alcohol drinks",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-04-05",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-02-09",
      "last_synced_at": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04616781"
    },
    {
      "nct_id": "NCT06075914",
      "title": "Ketone Conferred Resiliency Against Sleep Restriction With Nutritional Intervention.",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Deprivation",
        "Nutritional Intervention"
      ],
      "interventions": [
        {
          "name": "Ketogenic Intervention",
          "type": "OTHER"
        },
        {
          "name": "Mediterranean Intervention",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ketone Ester",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-05-01",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-06-24",
      "last_synced_at": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06075914"
    },
    {
      "nct_id": "NCT05585762",
      "title": "Buck Institute Ketone Ester RCT",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tolerance",
        "Safety Issues",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Ketone ester",
          "type": "OTHER"
        },
        {
          "name": "Non-ketone placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Buck Institute for Research on Aging",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-11-28",
      "completion_date": "2024-01-17",
      "has_results": false,
      "last_update_posted_date": "2024-06-11",
      "last_synced_at": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Novato, California",
      "locations": [
        {
          "city": "Novato",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05585762"
    },
    {
      "nct_id": "NCT04477161",
      "title": "Effect of Ketone Esters in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson Disease",
        "Ketosis"
      ],
      "interventions": [
        {
          "name": "Ketone Ester Elite endurance Nutrition Drink",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Stool Sample",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 10,
      "start_date": "2019-09-05",
      "completion_date": "2020-11-05",
      "has_results": false,
      "last_update_posted_date": "2022-01-04",
      "last_synced_at": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04477161"
    },
    {
      "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": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07227363"
    },
    {
      "nct_id": "NCT05551754",
      "title": "Acute Effects of Ketone Supplement on Responses to Alcohol Challenge in Healthy Volunteers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Alcohol Drinking"
      ],
      "interventions": [
        {
          "name": "Ketone Supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Alcohol Beverage",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 10,
      "start_date": "2022-10-20",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-08-06",
      "last_synced_at": "2026-09-23T07:22:44.417Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05551754"
    }
  ]
}