{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vitamin+D+Deficiency+Disease&page=5",
    "query": {
      "condition": "Vitamin D Deficiency Disease",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 344,
    "total_pages": 35,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vitamin+D+Deficiency+Disease&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vitamin+D+Deficiency+Disease&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T22:24:17.903Z",
  "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": "NCT06046820",
      "title": "The ENERGY 3 Study: Evaluation of Efficacy and Safety of INZ-701 in Children With ENPP1 Deficiency",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ectonucleotide Pyrophosphatase/Phosphodiesterase1 Deficiency",
        "Autosomal Recessive Hypophosphatemic Rickets",
        "Generalized Arterial Calcification of Infancy"
      ],
      "interventions": [
        {
          "name": "INZ-701",
          "type": "DRUG"
        },
        {
          "name": "Control Arm (Conventional Therapy)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Inozyme Pharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "1 Year to 12 Years"
      },
      "enrollment_count": 27,
      "start_date": "2023-11-05",
      "completion_date": "2026-08-19",
      "has_results": false,
      "last_update_posted_date": "2026-10-01",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • Philadelphia, Pennsylvania • Fort Worth, Texas",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06046820"
    },
    {
      "nct_id": "NCT01856946",
      "title": "Effect of Vitamin D Supplementation on Oral Glucose Tolerance Among Obese Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "4,000 IU vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Missouri-Columbia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "9 Years to 19 Years"
      },
      "enrollment_count": 15,
      "start_date": "2013-05",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2016-10-10",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "Columbia, Missouri",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01856946"
    },
    {
      "nct_id": "NCT00724178",
      "title": "The Effect of Vitamin D and Calcium on Bone in Pediatric HIV",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "HIV Infection",
        "Bone Mass"
      ],
      "interventions": [
        {
          "name": "cholecalciferol plus calcium carbonate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "6 Years to 16 Years"
      },
      "enrollment_count": 59,
      "start_date": "2003-07",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2010-01-15",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00724178"
    },
    {
      "nct_id": "NCT01119378",
      "title": "Study to Observe the Capability to Absorb Calcium as an Measure of Adequate Levels of Vitamin D",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postmenopausal",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Dual isotope technique",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Winthrop University Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 70 Years · Female only"
      },
      "enrollment_count": 76,
      "start_date": "2010-12",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2014-12-31",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "Mineola, New York",
      "locations": [
        {
          "city": "Mineola",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01119378"
    },
    {
      "nct_id": "NCT01050387",
      "title": "Effects of Vitamin D Dose and Genotype of the Binding Protein in Infants and Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "6 Months to 6 Years"
      },
      "enrollment_count": 193,
      "start_date": "2010-01",
      "completion_date": "2013-02",
      "has_results": false,
      "last_update_posted_date": "2014-08-05",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01050387"
    },
    {
      "nct_id": "NCT00204906",
      "title": "Correction of Vitamin D Inadequacy in Nursing Home Residents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypovitaminosis D"
      ],
      "interventions": [
        {
          "name": "vitamin D supplementation",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2005-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-10-05",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00204906"
    },
    {
      "nct_id": "NCT01363167",
      "title": "Identifying Vitamin D Deficiency in Very Low Birth Weight Infant (VLBW) Infants Part 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infant, Very Low Birth Weight",
        "Calcium Deficiency",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "400 IU Cholecalciferol- Vitamin D Daily",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "3 Days",
        "sex": "ALL",
        "summary": "1 Day to 3 Days"
      },
      "enrollment_count": 68,
      "start_date": "2011-10",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2014-11-24",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "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/NCT01363167"
    },
    {
      "nct_id": "NCT01477034",
      "title": "Vitamin D and Adipose Tissue Inflammation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vitamin D Deficiency",
        "Obesity",
        "Type 2 Diabetes Mellitus",
        "Intestinal Permeability"
      ],
      "interventions": [
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 18,
      "start_date": "2011-11",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2014-04-04",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01477034"
    },
    {
      "nct_id": "NCT04146935",
      "title": "Examining the Effect of Burosumab on Muscle Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "X-linked Hypophosphatemia"
      ],
      "interventions": [
        {
          "name": "Burosumab Injection [Crysvita]",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 10,
      "start_date": "2019-11-13",
      "completion_date": "2022-08-25",
      "has_results": true,
      "last_update_posted_date": "2023-08-24",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04146935"
    },
    {
      "nct_id": "NCT01093417",
      "title": "Study of Vitamin D and Effect on Heart Disease and Insulin Resistance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Human Immunodeficiency Virus (HIV)",
        "Vitamin D Deficiency",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2010-01",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2016-07-14",
      "last_synced_at": "2026-10-10T22:24:17.903Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01093417"
    }
  ]
}