{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=vitamin+C&page=2",
    "query": {
      "intervention": "vitamin C",
      "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=vitamin+C&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T23:01:57.543Z",
  "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": "NCT02168270",
      "title": "Temozolomide and Ascorbic Acid in Treating Patients With Recurrent High-Grade Glioma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Anaplastic Astrocytoma",
        "Anaplastic Oligodendroglioma",
        "Anaplastic Oligoastrocytoma",
        "Glioblastoma",
        "Gliosarcoma"
      ],
      "interventions": [
        {
          "name": "ascorbic acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "temozolomide",
          "type": "DRUG"
        },
        {
          "name": "quality-of-life assessment",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2014-06-16",
      "completion_date": "2015-08-20",
      "has_results": true,
      "last_update_posted_date": "2023-11-24",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02168270"
    },
    {
      "nct_id": "NCT00889538",
      "title": "Study of Glutathione, Vitamin C and Cysteine in Children With Autism and Severe Behavior Problems",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Autism",
        "Severe Behavior Disorder"
      ],
      "interventions": [
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "glutathione",
          "type": "DRUG"
        },
        {
          "name": "glutathione, vit C and NAC",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Louisville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "5 Years to 16 Years"
      },
      "enrollment_count": 24,
      "start_date": "2009-04",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2016-12-07",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00889538"
    },
    {
      "nct_id": "NCT03704350",
      "title": "Influence of Obesity on Endogenous Oxalate Synthesis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "controlled diet",
          "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": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 40,
      "start_date": "2019-05-24",
      "completion_date": "2026-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03704350"
    },
    {
      "nct_id": "NCT01881204",
      "title": "Hesperidin and Bone Health in Postmenopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoporosis, Postmenopausal"
      ],
      "interventions": [
        {
          "name": "Hesperidin and Calcilock",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Hesperidin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Control",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 12,
      "start_date": "2011-04",
      "completion_date": "2012-10",
      "has_results": false,
      "last_update_posted_date": "2018-05-17",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01881204"
    },
    {
      "nct_id": "NCT02818283",
      "title": "Soy Modulation of Immune Activation, LDL- Levels, and Lowering Inflammation by Pretzel Isoflavone Dietary Intervention",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Immunodeficiency Virus (HIV) Infection",
        "Hypercholesterolemia"
      ],
      "interventions": [
        {
          "name": "Soy Pretzel",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Wheat Pretzel",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2016-06",
      "completion_date": "2023-10",
      "has_results": false,
      "last_update_posted_date": "2023-10-06",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02818283"
    },
    {
      "nct_id": "NCT00079963",
      "title": "Gender, Obesity, C-Reactive Protein, and Oxidative Stress",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin E",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 396,
      "start_date": "2004-04",
      "completion_date": "2008-03-24",
      "has_results": false,
      "last_update_posted_date": "2017-09-27",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00079963"
    },
    {
      "nct_id": "NCT04764565",
      "title": "Impact of Nuun Instant on Hydration Status in Active Men and Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hydration"
      ],
      "interventions": [
        {
          "name": "Nuun Instant",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Water",
          "type": "OTHER"
        },
        {
          "name": "Nuun Electrolyte",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Memphis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-02-23",
      "completion_date": "2021-04-06",
      "has_results": false,
      "last_update_posted_date": "2021-04-28",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04764565"
    },
    {
      "nct_id": "NCT03422159",
      "title": "Metabolic Resuscitation Using Ascorbic Acid, Thiamine, and Glucocorticoids in Sepsis.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sepsis, Severe",
        "Septic Shock"
      ],
      "interventions": [
        {
          "name": "Ascorbic Acid",
          "type": "DRUG"
        },
        {
          "name": "Thiamine",
          "type": "DRUG"
        },
        {
          "name": "Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Sodium Chloride 0.9%",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Community Medical Center, Toms River, NJ",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 140,
      "start_date": "2018-02-05",
      "completion_date": "2019-08-27",
      "has_results": true,
      "last_update_posted_date": "2021-09-21",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 2,
      "location_summary": "Lakewood, New Jersey • Toms River, New Jersey",
      "locations": [
        {
          "city": "Lakewood",
          "state": "New Jersey"
        },
        {
          "city": "Toms River",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03422159"
    },
    {
      "nct_id": "NCT03289481",
      "title": "Treatment of HFpEF With Nitrate Supplement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Heart Failure With Normal Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "Active lozenge",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "MaineHealth",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2017-06-29",
      "completion_date": "2018-08-22",
      "has_results": true,
      "last_update_posted_date": "2021-10-06",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Rockport, Maine",
      "locations": [
        {
          "city": "Rockport",
          "state": "Maine"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03289481"
    },
    {
      "nct_id": "NCT00845130",
      "title": "Quantitative in Vivo Biomarkers of Oxidative Stress in Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes",
        "Oxidative Stress"
      ],
      "interventions": [
        {
          "name": "ascorbic acid (Vitamin C)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "In-Young Choi, Ph.D.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "30 Years to 55 Years"
      },
      "enrollment_count": 42,
      "start_date": "2009-09",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2018-05-03",
      "last_synced_at": "2026-09-29T23:01:57.543Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00845130"
    }
  ]
}