{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=13C-glucose",
    "query": {
      "intervention": "13C-glucose"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 19,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=13C-glucose&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-11T04:53:07.424Z",
  "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": "NCT04623502",
      "title": "An Investigation of Kidney and Urothelial Tumor Metabolism in Patients Undergoing Surgical Resection and/or Biopsy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Cancer",
        "Renal Cell Carcinoma",
        "Clear Cell Carcinoma",
        "Urothelial Carcinoma",
        "Metastatic Kidney Cancer",
        "Metastatic Urothelial Carcinoma",
        "Papillary Renal Cell Carcinoma",
        "Chromophobe Renal Cell Carcinoma",
        "Fumarate Hydratase Deficiency",
        "Succinate Dehydrogenase-Deficient Renal Cell Carcinoma",
        "HLRCC",
        "Hereditary Leiomyomatosis and Renal Cell Cancer"
      ],
      "interventions": [
        {
          "name": "13C-Glucose",
          "type": "OTHER"
        },
        {
          "name": "13C-Acetate",
          "type": "OTHER"
        },
        {
          "name": "13C-Lactate",
          "type": "OTHER"
        },
        {
          "name": "13C-Glutamine",
          "type": "OTHER"
        },
        {
          "name": "13C-Fructose",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2019-09-30",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04623502"
    },
    {
      "nct_id": "NCT01668082",
      "title": "An Investigation of Brain Tumor Metabolism in Patients Undergoing Surgical Resection",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Mass"
      ],
      "interventions": [
        {
          "name": "surgical resection of a brain tumor",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Texas Southwestern 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": 40,
      "start_date": "2009-08",
      "completion_date": "2029-02",
      "has_results": false,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01668082"
    },
    {
      "nct_id": "NCT05296421",
      "title": "Investigating Targetable Metabolic Pathways Sustaining Pancreatic Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pancreatic Ductal Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Therapeutic Conventional Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Uniformly-labeled [13C]glucose",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2022-03-14",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 2,
      "location_summary": "Livingston, New Jersey • New Brunswick, New Jersey",
      "locations": [
        {
          "city": "Livingston",
          "state": "New Jersey"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05296421"
    },
    {
      "nct_id": "NCT06400550",
      "title": "Identification of Metabolic Phenotypes Associated With Melanoma Metastasis",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Melanoma (Skin)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Texas Southwestern 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": 400,
      "start_date": "2018-08-01",
      "completion_date": "2028-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06400550"
    },
    {
      "nct_id": "NCT04430660",
      "title": "Evaluating Glial Acetate Metabolism as a Biomarker of Hypoglycemic Complications in Diabetic Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Hypoglycemia"
      ],
      "interventions": [
        {
          "name": "13C-MRS procedure/Acetate infusion",
          "type": "OTHER"
        },
        {
          "name": "Continuous glucose monitoring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 8,
      "start_date": "2020-08-19",
      "completion_date": "2022-05-04",
      "has_results": false,
      "last_update_posted_date": "2023-03-09",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 2,
      "location_summary": "Baton Rouge, Louisiana • New Orleans, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04430660"
    },
    {
      "nct_id": "NCT07020741",
      "title": "Stable Isotopes- Adults With Obesity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obese Patients (BMI ≥ 30 kg/m²)",
        "Glucose Metabolism",
        "Protein Metabolism"
      ],
      "interventions": [
        {
          "name": "Indispensable Amino Acid Oxidation",
          "type": "PROCEDURE"
        },
        {
          "name": "Stable Isotope Oral Glucose Tolerance Test",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "19 Years to 59 Years"
      },
      "enrollment_count": 8,
      "start_date": "2025-09-12",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07020741"
    },
    {
      "nct_id": "NCT03119883",
      "title": "Dysregulation of Glutamine Activity in the Pathogenesis of Multiple Myeloma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Monoclonal Gammopathy of Undetermined Significance",
        "Plasma Cell Myeloma"
      ],
      "interventions": [
        {
          "name": "5-Carbon C 13-labeled Glutamine",
          "type": "OTHER"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Uniformly-labeled [13C]glucose",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "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": 35,
      "start_date": "2017-06-02",
      "completion_date": "2024-06-30",
      "has_results": false,
      "last_update_posted_date": "2024-08-09",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03119883"
    },
    {
      "nct_id": "NCT05430178",
      "title": "Metabolic Pathology of Pediatric NAFLD",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nonalcoholic Fatty Liver",
        "Nonalcoholic Steatohepatitis",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Oral sugar tolerance test",
          "type": "OTHER"
        },
        {
          "name": "De novo lipogenesis test",
          "type": "OTHER"
        },
        {
          "name": "Gluconeogenesis test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "10 Years to 20 Years"
      },
      "enrollment_count": 100,
      "start_date": "2022-05-25",
      "completion_date": "2026-06",
      "has_results": false,
      "last_update_posted_date": "2024-03-06",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05430178"
    },
    {
      "nct_id": "NCT04168372",
      "title": "Fructose: Substrate, Stimulus, or Both?",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insulin Resistance",
        "Insulin Sensitivity",
        "Pre Diabetes"
      ],
      "interventions": [
        {
          "name": "High fructose, fructose labeled meal",
          "type": "OTHER"
        },
        {
          "name": "High fructose, pyruvate labeled meal",
          "type": "OTHER"
        },
        {
          "name": "Low fructose, fructose labeled meal",
          "type": "OTHER"
        },
        {
          "name": "Low fructose, pyruvate labeled meal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Touro University, California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "20 Years to 55 Years"
      },
      "enrollment_count": 35,
      "start_date": "2019-09-15",
      "completion_date": "2027-07-20",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Vallejo, California",
      "locations": [
        {
          "city": "Vallejo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04168372"
    },
    {
      "nct_id": "NCT04207619",
      "title": "Evaluating Glial Acetate Metabolism as a Biomarker of Hypoglycemic Counterregulation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Hypoglycemia"
      ],
      "interventions": [
        {
          "name": "hyperinsulinemic-hypoglycemic clamp",
          "type": "OTHER"
        },
        {
          "name": "13C-MRS procedure/Acetate infusion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "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": 10,
      "start_date": "2020-02-19",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2025-07-24",
      "last_synced_at": "2026-09-11T04:53:07.424Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04207619"
    }
  ]
}