{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ascorbic+Acid+%28Vitamin+C%29&page=14",
    "query": {
      "intervention": "Ascorbic Acid (Vitamin C)",
      "page": 14
    },
    "page_size": 10
  },
  "pagination": {
    "page": 14,
    "page_size": 10,
    "total_count": 368,
    "total_pages": 37,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ascorbic+Acid+%28Vitamin+C%29&page=15&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ascorbic+Acid+%28Vitamin+C%29&page=13&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-14T01:13:36.332Z",
  "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": "NCT02300064",
      "title": "Exercise in Health and Chronic Obstructive Pulmonary Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Knee-extensor exercise test",
          "type": "OTHER"
        },
        {
          "name": "Exercise test with restricting/releasing blood flow",
          "type": "OTHER"
        },
        {
          "name": "Exercise test with variable oxygen concentration and MRI",
          "type": "OTHER"
        },
        {
          "name": "Exercise test with oral antioxidant or placebo cocktail",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 185,
      "start_date": "2009-01",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-06-01",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02300064"
    },
    {
      "nct_id": "NCT03290612",
      "title": "Vitamin C to Reduce Morning Cardiovascular Risk",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "40 Years to 60 Years"
      },
      "enrollment_count": 10,
      "start_date": "2018-02-13",
      "completion_date": "2022-03-01",
      "has_results": false,
      "last_update_posted_date": "2023-03-23",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03290612"
    },
    {
      "nct_id": "NCT04946526",
      "title": "Broccoli Sulforaphane Bioavailability With Mustard",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sulforaphane Bioavailability"
      ],
      "interventions": [
        {
          "name": "Broccoli seed extract",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Broccoli seed extract with mustard seed powder",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Appalachian State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "25 Years to 65 Years"
      },
      "enrollment_count": 16,
      "start_date": "2022-06-01",
      "completion_date": "2022-09-30",
      "has_results": false,
      "last_update_posted_date": "2023-01-25",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 1,
      "location_summary": "Kannapolis, North Carolina",
      "locations": [
        {
          "city": "Kannapolis",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04946526"
    },
    {
      "nct_id": "NCT00654108",
      "title": "Safety and Immunogenicity of Peru-15-pCTB in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Gastroenteritis Escherichia Coli"
      ],
      "interventions": [
        {
          "name": "Ciprofloxacin",
          "type": "DRUG"
        },
        {
          "name": "Peru-15-pCTB",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sodium bicarbonate/Ascorbic Acid/Aspartame Buffer",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 62,
      "start_date": "2008-06-02",
      "completion_date": "2010-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-07-29",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00654108"
    },
    {
      "nct_id": "NCT04916327",
      "title": "Examining the Impact of Exercise Training on Vascular Dysfunction in Individuals With Mental Health Disorders - Study 1",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Vascular Diseases"
      ],
      "interventions": [
        {
          "name": "Antioxidant",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 720,
      "start_date": "2021-08-23",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04916327"
    },
    {
      "nct_id": "NCT02683369",
      "title": "Low-dose Iron Supplementation and Markers of Iron Status Among Non-anemic, Iron-deficient Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Non-anemic Iron Deficiency"
      ],
      "interventions": [
        {
          "name": "Blood Builder®/Iron Response®",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 23,
      "start_date": "2016-02",
      "completion_date": "2017-05",
      "has_results": false,
      "last_update_posted_date": "2019-08-16",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02683369"
    },
    {
      "nct_id": "NCT06989320",
      "title": "Endogenous Oxalate Synthesis in Idiopathic Calcium Oxalate Kidney Stone Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stones",
        "Kidney Calculi",
        "Urolithiasis",
        "Urolithiasis, Calcium Oxalate",
        "Nephrolithiasis",
        "Nephrolithiasis, Calcium Oxalate",
        "Oxalate Urolithiasis",
        "Healthy",
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "Low-oxalate diet and glycolate dosing",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Oral glycolate dosing",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Oral 13C- ascorbic acid dosing",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 80,
      "start_date": "2025-05-27",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 2,
      "location_summary": "Birmingham, Alabama • Dallas, Texas",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06989320"
    },
    {
      "nct_id": "NCT05932732",
      "title": "Trial Assessing the Impact on Facial Skin Quality, Hydration, and Skin Barrier of Three (3) Hydrafacial Treatments in Adults of All Skin Types.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cutis Laxa Facialis",
        "Xeroderma"
      ],
      "interventions": [
        {
          "name": "HydraFacial Syndeo System",
          "type": "DEVICE"
        },
        {
          "name": "ReGen-GF",
          "type": "DRUG"
        },
        {
          "name": "HydraFacial Elite MD System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Austin Institute for Clinical Research",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "30 Years to 55 Years"
      },
      "enrollment_count": 27,
      "start_date": "2023-11-20",
      "completion_date": "2024-10-09",
      "has_results": false,
      "last_update_posted_date": "2024-10-24",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 2,
      "location_summary": "Houston, Texas • Pflugerville, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Pflugerville",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05932732"
    },
    {
      "nct_id": "NCT00661544",
      "title": "Arsenic Trioxide With Ascorbic Acid and Melphalan for Myeloma Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Multiple Myeloma",
        "Stem Cell Transplantation"
      ],
      "interventions": [
        {
          "name": "Arsenic Trioxide",
          "type": "DRUG"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Ascorbic Acid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "Up to 70 Years"
      },
      "enrollment_count": 48,
      "start_date": "2004-03",
      "completion_date": "2007-06",
      "has_results": true,
      "last_update_posted_date": "2013-03-04",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00661544"
    },
    {
      "nct_id": "NCT00274820",
      "title": "Arsenic Trioxide, Ascorbic Acid, Dexamethasone, and Thalidomide in Myelofibrosis/Myeloproliferative Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Myeloproliferative Disorders",
        "Leukemia",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Diseases"
      ],
      "interventions": [
        {
          "name": "ascorbic acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "arsenic trioxide",
          "type": "DRUG"
        },
        {
          "name": "dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "thalidomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 15,
      "start_date": "2005-10",
      "completion_date": "2007-10",
      "has_results": false,
      "last_update_posted_date": "2020-07-27",
      "last_synced_at": "2026-10-14T01:13:36.332Z",
      "location_count": 2,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00274820"
    }
  ]
}