{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Dietary+Deficiency&page=4",
    "query": {
      "condition": "Dietary Deficiency",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 604,
    "total_pages": 61,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Dietary+Deficiency&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Dietary+Deficiency&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T09:28:07.833Z",
  "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": "NCT00754442",
      "title": "Suspected Deficient Activation of Vitamin D in Patients With Secondary Hyperparathyroidism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Secondary Hyperparathyroidism"
      ],
      "interventions": [
        {
          "name": "Teriparatide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "59 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 59 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2007-02",
      "completion_date": "2008-08",
      "has_results": true,
      "last_update_posted_date": "2022-04-01",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00754442"
    },
    {
      "nct_id": "NCT00756899",
      "title": "Vitamin D Deficiency and Low Bone Mineral Content in Children",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vitamin D Deficiency",
        "Obesity"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "3 Years to 12 Years"
      },
      "enrollment_count": 45,
      "start_date": "2008-07",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2012-10-26",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00756899"
    },
    {
      "nct_id": "NCT02208635",
      "title": "Absorption of Zinc (Zn) From Zn-biofortified and Zn-fortified Maize in Young Zambian Children Between 24-36 Months",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nutritional Deficiency"
      ],
      "interventions": [
        {
          "name": "Biofortified Maize",
          "type": "OTHER"
        },
        {
          "name": "Fortified Maize",
          "type": "OTHER"
        },
        {
          "name": "Control Maize",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "24 Months",
        "maximum_age": "36 Months",
        "sex": "ALL",
        "summary": "24 Months to 36 Months"
      },
      "enrollment_count": 60,
      "start_date": "2012-10",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-04-28",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02208635"
    },
    {
      "nct_id": "NCT05084248",
      "title": "Vitamin D Deficiency in Adults Following a Major Burn Injury",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Vitamin D Deficiency",
        "Burns"
      ],
      "interventions": [
        {
          "name": "Ergocalciferol Capsules",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern 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": 48,
      "start_date": "2022-09-29",
      "completion_date": "2025-08-18",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05084248"
    },
    {
      "nct_id": "NCT04752098",
      "title": "A Study to Assess Metabolic Bone Disease of Prematurity Using an Acoustic Method",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metabolic Bone Disease",
        "Osteopenia",
        "Neonatal Rickets"
      ],
      "interventions": [
        {
          "name": "Vibro-acoustic analysis (VAA), based on ultrasound radiation force",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Days",
        "maximum_age": "8 Months",
        "sex": "ALL",
        "summary": "3 Days to 8 Months"
      },
      "enrollment_count": 37,
      "start_date": "2020-09-02",
      "completion_date": "2024-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-27",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04752098"
    },
    {
      "nct_id": "NCT01381276",
      "title": "Vitamin A Absorption From Cassava in Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Vitamin A Deficiency"
      ],
      "interventions": [
        {
          "name": "Beta-Carotene bio-fortified cassava porridge without oil",
          "type": "OTHER"
        },
        {
          "name": "Beta-Carotene bio-fortified cassava porridge with oil",
          "type": "OTHER"
        },
        {
          "name": "White cassava porridge with retinyl palmitate reference dose",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "USDA, Western Human Nutrition Research Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 10,
      "start_date": "2011-06",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2011-12-12",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01381276"
    },
    {
      "nct_id": "NCT01026363",
      "title": "hCAP18 Levels and Vitamin D Deficiency in Chronic Kidney Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Kidney Disease",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Ergocalciferol",
          "type": "DRUG"
        },
        {
          "name": "Calcitriol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2009-12",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-09-23",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01026363"
    },
    {
      "nct_id": "NCT02239198",
      "title": "Impact of a Nutritional Supplement on Metabolic Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Disease Prevention"
      ],
      "interventions": [
        {
          "name": "Nutrition bar",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "UCSF Benioff Children's Hospital Oakland",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2016-04-05",
      "completion_date": "2017-04-13",
      "has_results": false,
      "last_update_posted_date": "2017-04-18",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02239198"
    },
    {
      "nct_id": "NCT06961864",
      "title": "Investigating Brain Function in People With and Without Visual Snow Syndrome Using Adaptation to Visual Stimuli",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Snow Syndrome",
        "Migraine",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Visual Adaptation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Assessments and Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Functional Magnetic Resonance Imaging (fMRI)",
          "type": "DEVICE"
        },
        {
          "name": "Magnetic Resonance Imaging (MRS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "University of Minnesota",
      "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": 100,
      "start_date": "2025-04-11",
      "completion_date": "2030-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-14",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06961864"
    },
    {
      "nct_id": "NCT02360644",
      "title": "Drug Metabolizing Enzyme and Transporter Function in Chronic Kidney Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Kidney Diseases",
        "Deficiency, Vitamin D"
      ],
      "interventions": [
        {
          "name": "Cholecalciferol",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 23,
      "start_date": "2014-10",
      "completion_date": "2019-02-01",
      "has_results": false,
      "last_update_posted_date": "2021-06-30",
      "last_synced_at": "2026-10-20T09:28:07.833Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02360644"
    }
  ]
}