{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+D+%28cholecalciferol%29&page=28",
    "query": {
      "intervention": "Vitamin D (cholecalciferol)",
      "page": 28
    },
    "page_size": 10
  },
  "pagination": {
    "page": 28,
    "page_size": 10,
    "total_count": 960,
    "total_pages": 96,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+D+%28cholecalciferol%29&page=29&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vitamin+D+%28cholecalciferol%29&page=27&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-16T13:16:40.122Z",
  "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": "NCT04179461",
      "title": "Personalized Treatment Algorithms for Difficult-to-treat Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "Cholecalciferol",
          "type": "DRUG"
        },
        {
          "name": "antihistamine",
          "type": "DRUG"
        },
        {
          "name": "Azithromycin",
          "type": "DRUG"
        },
        {
          "name": "emollient cream",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone Propionate",
          "type": "DRUG"
        },
        {
          "name": "Asthma Controller Medication",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 21,
      "start_date": "2018-03-16",
      "completion_date": "2019-10-03",
      "has_results": true,
      "last_update_posted_date": "2021-08-20",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04179461"
    },
    {
      "nct_id": "NCT04545554",
      "title": "Study to Evaluate Romosozumab in Children and Adolescents With Osteogenesis Imperfecta",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Osteogenesis Imperfecta"
      ],
      "interventions": [
        {
          "name": "Romosozumab",
          "type": "DRUG"
        },
        {
          "name": "Calcium",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 25,
      "start_date": "2021-01-21",
      "completion_date": "2023-03-30",
      "has_results": true,
      "last_update_posted_date": "2024-04-15",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 3,
      "location_summary": "Indianapolis, Indiana • Nashville, Tennessee • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04545554"
    },
    {
      "nct_id": "NCT02726113",
      "title": "Vitamin D and Prostate Cancer: A Clinical Study Enrolling Subjects Undergoing Prostatectomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "cholecalciferol",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "90 Years",
        "sex": "MALE",
        "summary": "19 Years to 90 Years · Male only"
      },
      "enrollment_count": 50,
      "start_date": "2011-10",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2019-12-03",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 2,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02726113"
    },
    {
      "nct_id": "NCT06184646",
      "title": "Elucidating the Minimal Effective Dose of Prunes for Bone Health in Postmenopausal Women",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bone Disease, Metabolic"
      ],
      "interventions": [
        {
          "name": "Prune",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 200,
      "start_date": "2024-03-15",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06184646"
    },
    {
      "nct_id": "NCT01754961",
      "title": "Effects of Vitamin D on Inflammation in Liver Disease",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis C Infection",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Veterans Medical Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2011-11",
      "completion_date": "2014-01",
      "has_results": false,
      "last_update_posted_date": "2012-12-21",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01754961"
    },
    {
      "nct_id": "NCT04564625",
      "title": "Relationships Between Vitamin D and Orthopedic Trauma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fracture",
        "Fracture Nonunion",
        "Fractures, Bone",
        "Vitamin D"
      ],
      "interventions": [
        {
          "name": "Vitamin D Assessment",
          "type": "OTHER"
        },
        {
          "name": "Fracture",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Methodist Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "18 Years to 25 Years"
      },
      "enrollment_count": 100,
      "start_date": "2020-03-06",
      "completion_date": "2021-02-26",
      "has_results": false,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04564625"
    },
    {
      "nct_id": "NCT00763503",
      "title": "Pharmacokinetic (PK) and Pharmacodynamic (PD) Study of CD 2027 Spray in Adults With Plaque-type Psoriasis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Plaque-type Psoriasis"
      ],
      "interventions": [
        {
          "name": "CD 2027",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Galderma R&D",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2008-09",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2021-02-18",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 3,
      "location_summary": "Hot Springs, Arizona • Austin, Texas • Bryan, Texas",
      "locations": [
        {
          "city": "Hot Springs",
          "state": "Arizona"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Bryan",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00763503"
    },
    {
      "nct_id": "NCT01183962",
      "title": "Vitamin D and T-Regulatory Cells in Coronary Artery Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Coronary Artery Disease",
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "No medication",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Creighton University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "30 Years to 80 Years"
      },
      "enrollment_count": 50,
      "start_date": "2010-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2011-08-04",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01183962"
    },
    {
      "nct_id": "NCT03732261",
      "title": "Effects of Exercise and Yogurt on Bone Mineral Density and Immunological Factors in Human Milk: The MEEMA Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lactational Amenorrhea",
        "Body Weight Changes",
        "Bone Loss"
      ],
      "interventions": [
        {
          "name": "Exercise and dietary",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "North Carolina Agriculture & Technical State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 40 Years · Female only"
      },
      "enrollment_count": 13,
      "start_date": "2019-04-01",
      "completion_date": "2020-12-30",
      "has_results": false,
      "last_update_posted_date": "2023-03-23",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 1,
      "location_summary": "Greensboro, North Carolina",
      "locations": [
        {
          "city": "Greensboro",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03732261"
    },
    {
      "nct_id": "NCT01042561",
      "title": "Vitamin D Status and Dose Response in Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vitamin D",
        "Prematurity"
      ],
      "interventions": [
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "vitamin D3 placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Minutes",
        "maximum_age": "3 Months",
        "sex": "ALL",
        "summary": "5 Minutes to 3 Months"
      },
      "enrollment_count": 64,
      "start_date": "2009-08-07",
      "completion_date": "2010-08-01",
      "has_results": false,
      "last_update_posted_date": "2023-09-01",
      "last_synced_at": "2026-10-16T13:16:40.122Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01042561"
    }
  ]
}