{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+C+tablet&page=2",
    "query": {
      "intervention": "Vitamin C tablet",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 45,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+C+tablet&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+C+tablet&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T13:35:32.018Z",
  "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": "NCT04234581",
      "title": "The Effect of Lysulin on Glycemic Control and Advanced Glycation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Lysulin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Juraj Koska",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 59,
      "start_date": "2019-08-13",
      "completion_date": "2020-06-12",
      "has_results": false,
      "last_update_posted_date": "2020-10-19",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 2,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04234581"
    },
    {
      "nct_id": "NCT04877366",
      "title": "Evaluate Effects of Sprinkled Format REDUCOSE in a Carbohydrate-rich, Mixed Meal on Post-prandial Glycemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dietary Supplement"
      ],
      "interventions": [
        {
          "name": "Dietary Supplement: Sprinkled Format REDUCOSE.",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Reference control",
          "type": "OTHER"
        },
        {
          "name": "Active comparator",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Société des Produits Nestlé (SPN)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2021-07-21",
      "completion_date": "2021-12-01",
      "has_results": false,
      "last_update_posted_date": "2024-10-15",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 1,
      "location_summary": "Tustin, California",
      "locations": [
        {
          "city": "Tustin",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04877366"
    },
    {
      "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": "2026-09-30T13:35:32.018Z",
      "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": "NCT00893724",
      "title": "Supplemental Adjuvants for Intracellular Nutrition and Treatment",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Neovascular Age-related Macular Degeneration",
        "Diabetic Macular Edema"
      ],
      "interventions": [
        {
          "name": "Neutral pills with no medicinal effect",
          "type": "DRUG"
        },
        {
          "name": "Inosine; Tocopherols, Tocotrienol, CoQ10 combination capsule; Niacinamide SR; Viatmin C; N-acetyl Cysteine; Complete Multivitamin with all minerals",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Inosine; Tocopherol, Tocotrienol, CoQ10 combination capsule; Niacinamide; Vitamin C; N-acetyl Cysteine; Complete Multivitamin with all minerals; Minocycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Mid-Atlantic Retina Consultations, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 60,
      "start_date": "2009-06",
      "completion_date": "2011-09",
      "has_results": false,
      "last_update_posted_date": "2011-07-20",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 1,
      "location_summary": "Morgantown, West Virginia",
      "locations": [
        {
          "city": "Morgantown",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00893724"
    },
    {
      "nct_id": "NCT02421887",
      "title": "Males, Antioxidants, and Infertility Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Male Infertility"
      ],
      "interventions": [
        {
          "name": "Antioxidant Supplement",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 171,
      "start_date": "2015-12",
      "completion_date": "2018-12",
      "has_results": true,
      "last_update_posted_date": "2019-09-04",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 10,
      "location_summary": "Los Angeles, California • San Francisco, California • Sunnyvale, California + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Sunnyvale",
          "state": "California"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Southfield",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02421887"
    },
    {
      "nct_id": "NCT06780202",
      "title": "Assessment of Medrol Dosepak to Reduce Opioid Consumption in Foot and Ankle Surgical Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Foot Injuries and Disorders",
        "Ankle Injuries and Disorders",
        "Achilles Tendon Injury"
      ],
      "interventions": [
        {
          "name": "medrol dosepak",
          "type": "DRUG"
        },
        {
          "name": "HYDROcodone Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "18 Years to 95 Years"
      },
      "enrollment_count": 180,
      "start_date": "2025-01-27",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-09",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia • Johns Creek, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Johns Creek",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06780202"
    },
    {
      "nct_id": "NCT00532844",
      "title": "A Phase 2, Pharmacokinetic (PK) Study of 6R-BH4 Alone or 6R-BH4 With Vitamin C in Subjects With Endothelial Dysfunction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Endothelial Dysfunction"
      ],
      "interventions": [
        {
          "name": "Sapropterin Dihydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Sapropterin Dihydrochloride and Vitamin C",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "BioMarin Pharmaceutical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 52,
      "start_date": "2007-09",
      "completion_date": "2009-03",
      "has_results": true,
      "last_update_posted_date": "2021-05-17",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 1,
      "location_summary": "Hackensack, New Jersey",
      "locations": [
        {
          "city": "Hackensack",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00532844"
    },
    {
      "nct_id": "NCT01595516",
      "title": "Nebivolol and Endothelial Regulation of Fibrinolysis (NERF)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Prehypertension",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Nebivolol",
          "type": "DRUG"
        },
        {
          "name": "Metoprolol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Bradykinin",
          "type": "OTHER"
        },
        {
          "name": "Saline",
          "type": "OTHER"
        },
        {
          "name": "Vitamin C",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Colorado, Boulder",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "45 Years to 65 Years"
      },
      "enrollment_count": 44,
      "start_date": "2012-02",
      "completion_date": "2017-10",
      "has_results": true,
      "last_update_posted_date": "2019-06-25",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 1,
      "location_summary": "Boulder, Colorado",
      "locations": [
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01595516"
    },
    {
      "nct_id": "NCT04199624",
      "title": "Assessment of Gastric pH Changes Induced by Ascorbic Acid Tablets",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypochlorhydria"
      ],
      "interventions": [
        {
          "name": "Omeprazole 20mg",
          "type": "DRUG"
        },
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 11,
      "start_date": "2021-10-01",
      "completion_date": "2023-06-07",
      "has_results": false,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04199624"
    },
    {
      "nct_id": "NCT03564756",
      "title": "Effect of Ascorbic Acid Supplementation in Pregnancy on Anemia (AAA)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anemia in Pregnancy"
      ],
      "interventions": [
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Fetal Medicine Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2019-08-01",
      "completion_date": "2022-03-30",
      "has_results": false,
      "last_update_posted_date": "2022-09-22",
      "last_synced_at": "2026-09-30T13:35:32.018Z",
      "location_count": 1,
      "location_summary": "Dayton, Ohio",
      "locations": [
        {
          "city": "Dayton",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03564756"
    }
  ]
}