{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+A+alone&page=3",
    "query": {
      "intervention": "Vitamin A alone",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 266,
    "total_pages": 27,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+A+alone&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+A+alone&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T21:52:42.439Z",
  "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": "NCT04254783",
      "title": "A Study to Evaluate the Effect of Intravenous (IV) Infusions of Risankizumab on Pharmacokinetics of Cytochome P450 Substrates in Adult Participants With Moderately to Severely Active Ulcerative Colitis or Crohn's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Ulcerative Colitis (UC)",
        "Crohn's Disease"
      ],
      "interventions": [
        {
          "name": "Risankizumab",
          "type": "DRUG"
        },
        {
          "name": "Cytochrome P450 (CYP) Substrates",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2020-05-27",
      "completion_date": "2022-10-14",
      "has_results": false,
      "last_update_posted_date": "2024-07-01",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 4,
      "location_summary": "Coronado, California • DeLand, Florida • Margate, Florida + 1 more",
      "locations": [
        {
          "city": "Coronado",
          "state": "California"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Margate",
          "state": "Florida"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04254783"
    },
    {
      "nct_id": "NCT03859687",
      "title": "Trial of Antibody Responses by Vitamin Supplementation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Vitamin A supplementation",
          "type": "BIOLOGICAL"
        },
        {
          "name": "No vitamin A supplementation",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "4 Years",
        "sex": "ALL",
        "summary": "1 Year to 4 Years"
      },
      "enrollment_count": 22,
      "start_date": "2019-08-19",
      "completion_date": "2025-07-10",
      "has_results": false,
      "last_update_posted_date": "2025-09-05",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03859687"
    },
    {
      "nct_id": "NCT01820338",
      "title": "Extension Family Lifestyle Intervention Project (E-FLIP for Kids)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Behavioral Child Tx Contacts",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral Parent-Tx Contacts",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dietary and Physical Activity Information",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "8 Years to 12 Years"
      },
      "enrollment_count": 314,
      "start_date": "2009-07",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2015-03-20",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01820338"
    },
    {
      "nct_id": "NCT02863809",
      "title": "Vision Restoration With a Collagen Crosslinked Boston Keratoprosthesis Unit",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Keratolysis"
      ],
      "interventions": [
        {
          "name": "Riboflavin",
          "type": "DRUG"
        },
        {
          "name": "Dextran",
          "type": "DRUG"
        },
        {
          "name": "UVA Light Source",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Joseph B. Ciolino, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 76,
      "start_date": "2017-03-15",
      "completion_date": "2021-08-31",
      "has_results": true,
      "last_update_posted_date": "2023-05-10",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 13,
      "location_summary": "Los Angeles, California • Sacramento, California • San Diego, California + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02863809"
    },
    {
      "nct_id": "NCT04642287",
      "title": "Immunotherapy After Transplantation for Skin Cancer Prevention in Organ Transplant Recipients",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Immunotherapy",
        "Cutaneous Squamous Cell Carcinoma",
        "Actinic Keratoses",
        "Organ Transplant Recipients",
        "Skin Cancer"
      ],
      "interventions": [
        {
          "name": "Calcipotriol Only Product in Cutaneous Dose Form",
          "type": "DRUG"
        },
        {
          "name": "Vaseline",
          "type": "DRUG"
        },
        {
          "name": "Topical 5FU",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2026-01",
      "completion_date": "2030-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-07",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • St Louis, Missouri",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04642287"
    },
    {
      "nct_id": "NCT02174393",
      "title": "Microneedling Plus the Universal Peel For Acne Scarring",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acne Scarring"
      ],
      "interventions": [
        {
          "name": "Universal Peel",
          "type": "DRUG"
        },
        {
          "name": "Microneedling",
          "type": "PROCEDURE"
        },
        {
          "name": "Post-Microneedling Skin Care",
          "type": "DRUG"
        },
        {
          "name": "Post-Universal Peel Skin Care",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Englewood Hospital and Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 15,
      "start_date": "2014-07",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-02-19",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 1,
      "location_summary": "Englewood Cliffs, New Jersey",
      "locations": [
        {
          "city": "Englewood Cliffs",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02174393"
    },
    {
      "nct_id": "NCT06568146",
      "title": "A Single Group Study to Evaluate the Effects of a Multivitamin on a Range of Health and Wellbeing Outcomes.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health and Wellbeing"
      ],
      "interventions": [
        {
          "name": "Multivitamin Supplement",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Love Wellness",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2024-05-23",
      "completion_date": "2024-10-23",
      "has_results": false,
      "last_update_posted_date": "2024-10-29",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 1,
      "location_summary": "Santa Monica, California",
      "locations": [
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06568146"
    },
    {
      "nct_id": "NCT03750968",
      "title": "Lutein & Zeaxanthin in Pregnancy - Carotenoid Supplementation During Pregnancy: Ocular and Systemic Effects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Nutrient Deficiency",
        "Pregnancy Related"
      ],
      "interventions": [
        {
          "name": "Carotenoid Group",
          "type": "DRUG"
        },
        {
          "name": "Control Group",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Paul S. Bernstein",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 47,
      "start_date": "2019-09-26",
      "completion_date": "2022-01-31",
      "has_results": true,
      "last_update_posted_date": "2023-07-11",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03750968"
    },
    {
      "nct_id": "NCT03874988",
      "title": "Building an Evidence Base for Weight Loss Strategies Among Those With Chronic SCI-The GLB-SCI+",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries",
        "Obesity",
        "Weight Loss",
        "Diet Modification"
      ],
      "interventions": [
        {
          "name": "Portion-Controlled Meals",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enhanced Self-Monitoring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "GLB-SCI+",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Baylor Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110,
      "start_date": "2019-06-01",
      "completion_date": "2022-06-15",
      "has_results": false,
      "last_update_posted_date": "2025-10-15",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03874988"
    },
    {
      "nct_id": "NCT06658847",
      "title": "A Study to Evaluate the Effect of a Topical Retinol on Epigenetic Changes and Expression of Certain Genes in the Skin Using Non-invasive Measurements",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinoid",
        "Skin Aging",
        "Epigenomics"
      ],
      "interventions": [
        {
          "name": "Night Cream Usage",
          "type": "OTHER"
        },
        {
          "name": "No Night Cream Usage",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johnson & Johnson Consumer Inc. (J&JCI)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 65 Years · Female only"
      },
      "enrollment_count": 66,
      "start_date": "2024-11-07",
      "completion_date": "2025-04-29",
      "has_results": false,
      "last_update_posted_date": "2025-06-17",
      "last_synced_at": "2026-10-08T21:52:42.439Z",
      "location_count": 1,
      "location_summary": "High Point, North Carolina",
      "locations": [
        {
          "city": "High Point",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06658847"
    }
  ]
}