{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+maintenance+Vitamin+D",
    "query": {
      "intervention": "No maintenance Vitamin D"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T16:59:08.209Z",
  "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": "NCT03028519",
      "title": "Vitamin D, Leptin, Vitamin D Receptor Polymorphism, and Treatment-Related Morbidity in Ovarian Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Vitamin D3",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 99 Years · Female only"
      },
      "enrollment_count": 81,
      "start_date": "2017-01-31",
      "completion_date": "2020-12-30",
      "has_results": false,
      "last_update_posted_date": "2022-04-19",
      "last_synced_at": "2026-09-26T16:59:08.209Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03028519"
    },
    {
      "nct_id": "NCT03467789",
      "title": "Vitamin D as a Nutritional Neoadjuvant During Photodynamic Therapy of Basal Cell Carcinoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Basal Cell Carcinoma",
        "Basal Cell Nevus Syndrome"
      ],
      "interventions": [
        {
          "name": "Dietary Vitamin D3 pre-treatment",
          "type": "DRUG"
        },
        {
          "name": "Photodynamic therapy",
          "type": "RADIATION"
        },
        {
          "name": "Serum Maintenance Vitamin D3",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 37,
      "start_date": "2018-10-01",
      "completion_date": "2023-01-06",
      "has_results": false,
      "last_update_posted_date": "2024-10-17",
      "last_synced_at": "2026-09-26T16:59:08.209Z",
      "location_count": 2,
      "location_summary": "Phoenix, Arizona • Cleveland, Ohio",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03467789"
    },
    {
      "nct_id": "NCT02849704",
      "title": "Fat Malabsorption in Chronic Pancreatitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Pancreatitis"
      ],
      "interventions": [
        {
          "name": "Creon36™",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "30 Years to 70 Years"
      },
      "enrollment_count": 48,
      "start_date": "2016-10-13",
      "completion_date": "2017-11-01",
      "has_results": true,
      "last_update_posted_date": "2019-05-03",
      "last_synced_at": "2026-09-26T16:59:08.209Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02849704"
    },
    {
      "nct_id": "NCT01250899",
      "title": "Vitamin D in HIV-Infected Patients on HAART",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vitamin D Deficiency",
        "HIV"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 122,
      "start_date": "2010-10",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2014-11-25",
      "last_synced_at": "2026-09-26T16:59:08.209Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01250899"
    },
    {
      "nct_id": "NCT06366776",
      "title": "Emulated Study of Vitamin D Correction Vs Non-Correction",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vitamin D Deficiency"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The Cooper Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9000,
      "start_date": "2024-08-14",
      "completion_date": "2025-10",
      "has_results": false,
      "last_update_posted_date": "2025-01-22",
      "last_synced_at": "2026-09-26T16:59:08.209Z",
      "location_count": 1,
      "location_summary": "Camden, New Jersey",
      "locations": [
        {
          "city": "Camden",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06366776"
    },
    {
      "nct_id": "NCT05846880",
      "title": "VitD3 Supplementation in Patients With Multiple Myeloma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Lenalidomide",
          "type": "DRUG"
        },
        {
          "name": "Maintenance Vitamin D",
          "type": "DRUG"
        },
        {
          "name": "No maintenance Vitamin D",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amany Keruakous, MD, MS.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2024-12-01",
      "completion_date": "2028-05",
      "has_results": false,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-09-26T16:59:08.209Z",
      "location_count": 1,
      "location_summary": "Augusta, Georgia",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05846880"
    }
  ]
}