{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ascorbic+acid&page=12",
    "query": {
      "intervention": "ascorbic acid",
      "page": 12
    },
    "page_size": 10
  },
  "pagination": {
    "page": 12,
    "page_size": 10,
    "total_count": 371,
    "total_pages": 38,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ascorbic+acid&page=13&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ascorbic+acid&page=11&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T22:47:04.677Z",
  "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": "NCT05523115",
      "title": "An Exploratory Investigation of a Supplement to Promote Cognitive Health Benefits",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anxiety",
        "Stress",
        "Memory Deficits",
        "Cortisol Overproduction"
      ],
      "interventions": [
        {
          "name": "Heights Smart Supplement",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Heights",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 34,
      "start_date": "2022-06-15",
      "completion_date": "2022-10-01",
      "has_results": false,
      "last_update_posted_date": "2022-11-08",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Santa Monica, California",
      "locations": [
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05523115"
    },
    {
      "nct_id": "NCT01555489",
      "title": "Assessing the Efficacy and Safety of IV Vitamin C in Combination With Standard Chemotherapy for Pancreatic Ca",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stage IV Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Ascorbic Acid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2011-10",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2025-05-04",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01555489"
    },
    {
      "nct_id": "NCT07151105",
      "title": "Anti-inflammatory Activities of Vitamin C Supplementation on the Gut Barrier Function in Adults With Obesity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adequate Vitamin C Status",
        "Inadequate Vitamin C Status"
      ],
      "interventions": [
        {
          "name": "Vitamin C Supplement + Low Vitamin C Diet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo + Low Vitamin C Diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 34,
      "start_date": "2025-10-01",
      "completion_date": "2028-12-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07151105"
    },
    {
      "nct_id": "NCT05958303",
      "title": "HYPEROXIA Responses and ROS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cerebrovascular Disorders"
      ],
      "interventions": [
        {
          "name": "Antioxidant Cocktail",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "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": 24,
      "start_date": "2024-07-24",
      "completion_date": "2025-03-31",
      "has_results": true,
      "last_update_posted_date": "2026-07-07",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05958303"
    },
    {
      "nct_id": "NCT04715022",
      "title": "Sympathetic-vascular Dysfunction in Obesity and Insulin Resistance (Vitamin C Study)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Hypertension",
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "Ascorbic acid solution (American Regent Laboratories Inc.)",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "35 Years to 65 Years"
      },
      "enrollment_count": 23,
      "start_date": "2021-06-17",
      "completion_date": "2027-08-01",
      "has_results": false,
      "last_update_posted_date": "2025-06-08",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04715022"
    },
    {
      "nct_id": "NCT04036110",
      "title": "Vitamin C Supplementation Intervention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Vitamin C 500 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin C 1000 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 36,
      "start_date": "2018-08-14",
      "completion_date": "2020-06-16",
      "has_results": true,
      "last_update_posted_date": "2021-03-09",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04036110"
    },
    {
      "nct_id": "NCT04437758",
      "title": "Effects of Hydrolyzed Collagen and Vitamin C on Explosive Performance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Collagen Synthesis",
        "Rate of Force (RFD) Development"
      ],
      "interventions": [
        {
          "name": "Collagen and Vitamin C powder mix nutritional intervention",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Maltodextrin placebo powder",
          "type": "OTHER"
        },
        {
          "name": "Maximum power training exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "PepsiCo Global R&D",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 50,
      "start_date": "2019-08-22",
      "completion_date": "2020-02-05",
      "has_results": false,
      "last_update_posted_date": "2020-06-18",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04437758"
    },
    {
      "nct_id": "NCT03433781",
      "title": "A Phase Ib Study Evaluating the Safety and Tolerability of Vitamin C in Patients With Intermediate or High Risk Myelodysplastic Syndrome With TET2 Mutations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Myelodysplastic Syndromes"
      ],
      "interventions": [
        {
          "name": "Vitamin C",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2018-05-01",
      "completion_date": "2023-05-16",
      "has_results": true,
      "last_update_posted_date": "2024-03-27",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 2,
      "location_summary": "Miami, Florida • New York, New York",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03433781"
    },
    {
      "nct_id": "NCT04898023",
      "title": "Zinc and Green Tea Extract for Community Respiratory Viral Infections",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Respiratory Viral Infection"
      ],
      "interventions": [
        {
          "name": "zinc-green tea extract-ascorbic acid",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Missouri-Columbia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2022-09-21",
      "completion_date": "2023-12-20",
      "has_results": true,
      "last_update_posted_date": "2025-03-07",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Columbia, Missouri",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04898023"
    },
    {
      "nct_id": "NCT04230824",
      "title": "Chronic Study on Body Composition, Training, Performance, and Recovery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Damage Muscle",
        "Body Weight Changes",
        "Performance Enhancing Product Use"
      ],
      "interventions": [
        {
          "name": "Pre-workout plus and Protein recovery plus",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "6-week resistance training program",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Pharmanex",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "25 Years to 50 Years"
      },
      "enrollment_count": 69,
      "start_date": "2021-02-01",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2022-01-13",
      "last_synced_at": "2026-10-20T22:47:04.677Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04230824"
    }
  ]
}