{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Calcium+Deficiency&page=2",
    "query": {
      "condition": "Calcium Deficiency",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Calcium+Deficiency&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-21T22:12:00.567Z",
  "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": "NCT07654231",
      "title": "Reducing Inflammation to Improve Vascular and Bone Outcomes With Low-dose Colchicine in CKD",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Kidney Disease Mineral and Bone Disorder",
        "Hypertension",
        "Diabetes",
        "Dyslipidemia",
        "Atherosclerotic Cardiovascular Disease (ASCVD)",
        "Chronic Kidney Disease (Stage 3)"
      ],
      "interventions": [
        {
          "name": "Low-dose Colchicine at 0.5mg daily",
          "type": "DRUG"
        },
        {
          "name": "Usual Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "18 Years to 69 Years"
      },
      "enrollment_count": 60,
      "start_date": "2026-07-01",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07654231"
    },
    {
      "nct_id": "NCT00195936",
      "title": "Effect of Cinacalcet on Parathyroid Hormone Secretion in Children and Adolescents With Hypophosphatemic Rickets",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypophosphatemic Rickets, X-Linked Dominant"
      ],
      "interventions": [
        {
          "name": "Cinacalcet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Mercy Hospital Kansas City",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2005-06",
      "completion_date": "2008-02",
      "has_results": false,
      "last_update_posted_date": "2021-01-19",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00195936"
    },
    {
      "nct_id": "NCT03771105",
      "title": "The Impact of Phosphate Metabolism on Healthy Aging",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Hypophosphatemia",
        "Rickets",
        "Hypercalciuria",
        "XLH",
        "HHRH"
      ],
      "interventions": [
        {
          "name": "phosphate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2019-01-01",
      "completion_date": "2028-04",
      "has_results": false,
      "last_update_posted_date": "2026-05-27",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03771105"
    },
    {
      "nct_id": "NCT00948740",
      "title": "The Effect of Vitamin D on Urinary Calcium Excretion in Kidney Stone Formers With High Urinary Calcium",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Vitamin D Deficiency",
        "Nephrolithiasis"
      ],
      "interventions": [
        {
          "name": "vitamin D (ergocalciferol)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2009-08",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2017-01-09",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00948740"
    },
    {
      "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": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "Mineola, New York",
      "locations": [
        {
          "city": "Mineola",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01119378"
    },
    {
      "nct_id": "NCT00502866",
      "title": "Study to Assess the Use of a Simple Lab Test to Screen for Rickets in Children",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rickets"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Agency for Healthcare Research and Quality (AHRQ)",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "15 Months",
        "sex": "ALL",
        "summary": "6 Months to 15 Months"
      },
      "enrollment_count": 246,
      "start_date": "2006-06",
      "completion_date": "2008-06",
      "has_results": false,
      "last_update_posted_date": "2014-01-08",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00502866"
    },
    {
      "nct_id": "NCT07368946",
      "title": "Phosphate Assessment in Chronic Kidney Disease Patients Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Kidney Disease (Stage 3-4)",
        "Chronic Kidney Disease Mineral and Bone Disorder"
      ],
      "interventions": [
        {
          "name": "Dietary Phosphorus Intake",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2025-05-09",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07368946"
    },
    {
      "nct_id": "NCT03736564",
      "title": "Ga-DOTATATE PET for Phosphaturic Mesenchymal Tumors in Patients With Tumor Induced Osteomalacia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Osteomalacia"
      ],
      "interventions": [
        {
          "name": "68Ga-DOTATATE PET/CT",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2019-01-31",
      "completion_date": "2023-10-31",
      "has_results": true,
      "last_update_posted_date": "2025-04-30",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03736564"
    },
    {
      "nct_id": "NCT02915705",
      "title": "Efficacy and Safety of Burosumab Versus Oral Phosphate and Active Vitamin D Treatment in Pediatric Patients With XLH",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "X-Linked Hypophosphatemia"
      ],
      "interventions": [
        {
          "name": "burosumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Oral Phosphate Supplement",
          "type": "DRUG"
        },
        {
          "name": "active vitamin D",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Kyowa Kirin, Inc.",
      "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": 61,
      "start_date": "2016-09-08",
      "completion_date": "2019-07-15",
      "has_results": true,
      "last_update_posted_date": "2024-08-29",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • San Francisco, California • Indianapolis, Indiana + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02915705"
    },
    {
      "nct_id": "NCT01636570",
      "title": "Vitamin D3 Supplementation for Heart Failure Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Heart Failure",
        "Vitamin D Deficiency",
        "Cardiomyopathy",
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "Placebo Comparator: Sugar Pill",
          "type": "DRUG"
        },
        {
          "name": "Vitamin D3 (cholecalciferol)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Heidi Moretti, MS, RD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 40,
      "start_date": "2012-08",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2017-04-26",
      "last_synced_at": "2026-07-21T22:12:00.567Z",
      "location_count": 2,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        },
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01636570"
    }
  ]
}