{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Calcium+and+vitamin+D",
    "query": {
      "intervention": "Calcium and vitamin D"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 217,
    "total_pages": 22,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Calcium+and+vitamin+D&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T07:49:44.713Z",
  "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": "NCT01473589",
      "title": "Effect of Teriparatide on Hip Fracture Healing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Femur Neck Fracture"
      ],
      "interventions": [
        {
          "name": "Teriparatide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Calcium supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin D supplementation",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 122,
      "start_date": "2012-02",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2015-04-16",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 24,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • La Mesa, California + 21 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01473589"
    },
    {
      "nct_id": "NCT04344821",
      "title": "Curves 30/30 Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Weight Loss"
      ],
      "interventions": [
        {
          "name": "Curves Calcium",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Texas A&M University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 57,
      "start_date": "2009-05-18",
      "completion_date": "2012-05-03",
      "has_results": false,
      "last_update_posted_date": "2020-04-15",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 1,
      "location_summary": "College Station, Texas",
      "locations": [
        {
          "city": "College Station",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04344821"
    },
    {
      "nct_id": "NCT00824993",
      "title": "Prevention of Osteoporosis in Bone Marrow Transplantation (BMT) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hematological Malignancies"
      ],
      "interventions": [
        {
          "name": "Ibandronate",
          "type": "DRUG"
        },
        {
          "name": "Vitamin Supplements",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 78,
      "start_date": "2008-12-09",
      "completion_date": "2017-04-07",
      "has_results": true,
      "last_update_posted_date": "2018-09-13",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00824993"
    },
    {
      "nct_id": "NCT00104572",
      "title": "Effects of Aromatase Inhibition Versus Testosterone in Older Men With Low Testosterone: Randomized-Controlled Trial.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypogonadism",
        "Diabetes",
        "Sarcopenia",
        "Osteoporosis",
        "Depression"
      ],
      "interventions": [
        {
          "name": "Androgel (Testosterone Gel)",
          "type": "DRUG"
        },
        {
          "name": "Anastrozole (Aromatase Inhibitor)",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo gel",
          "type": "DRUG"
        },
        {
          "name": "Calcium Cardone 500mg with vitamin D 400 IU",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "National Institute on Aging (NIA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "65 Years and older · Male only"
      },
      "enrollment_count": 44,
      "start_date": "2004-03",
      "completion_date": "2015-01",
      "has_results": true,
      "last_update_posted_date": "2018-11-06",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00104572"
    },
    {
      "nct_id": "NCT00668200",
      "title": "Impact on Reducing the Incidence of Low Serum Calcium by Providing Educational Materials on the Need to Take Daily Supplemental Calcium and Vitamin D to Patients With Paget's Disease Treated With Reclast®",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Paget's Disease of the Bone",
        "Hypocalcemia"
      ],
      "interventions": [
        {
          "name": "Reclast (ZOL446, zoledronic acid)",
          "type": "DRUG"
        },
        {
          "name": "Calcium",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 81,
      "start_date": "2008-05",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2015-03-06",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 9,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Gainesville, Georgia + 6 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Gainesville",
          "state": "Georgia"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00668200"
    },
    {
      "nct_id": "NCT00421343",
      "title": "Secondary Prevention of Osteoporosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "alendronate with cholecalciferol",
          "type": "DRUG"
        },
        {
          "name": "calcium carbonate with cholecalciferol",
          "type": "DRUG"
        },
        {
          "name": "Falls prevention measures",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Hebrew SeniorLife",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2007-02",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2020-02-05",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00421343"
    },
    {
      "nct_id": "NCT00298545",
      "title": "Effect of Vitamin D and Calcium on Genes in the Colon",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Colorectal Polyps",
        "Colorectal Adenoma",
        "Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "placebo and Calcitriol",
          "type": "DRUG"
        },
        {
          "name": "Calcium and Calcitriol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rockefeller University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "48 Years",
        "maximum_age": "72 Years",
        "sex": "ALL",
        "summary": "48 Years to 72 Years"
      },
      "enrollment_count": 10,
      "start_date": "2005-11",
      "completion_date": "2009-05",
      "has_results": false,
      "last_update_posted_date": "2011-11-18",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00298545"
    },
    {
      "nct_id": "NCT00921557",
      "title": "Safety and Effectiveness of Alendronate for Bone Mineral Density in HIV-infected Children and Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [
        {
          "name": "Alendronate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Calcium carbonate/vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "11 Years to 24 Years"
      },
      "enrollment_count": 52,
      "start_date": "2009-11",
      "completion_date": "2017-01",
      "has_results": true,
      "last_update_posted_date": "2021-11-05",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Miami, Florida • Tampa, Florida + 4 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00921557"
    },
    {
      "nct_id": "NCT05384951",
      "title": "HMB Cerebral Palsy Pilot Study",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cerebral Palsy"
      ],
      "interventions": [
        {
          "name": "HMB + Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Gillette Children's Specialty Healthcare",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "13 Years to 17 Years"
      },
      "enrollment_count": 7,
      "start_date": "2022-05-15",
      "completion_date": "2024-05-31",
      "has_results": false,
      "last_update_posted_date": "2024-02-22",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05384951"
    },
    {
      "nct_id": "NCT00580047",
      "title": "Effects of Zoledronic Acid Versus Alendronate on Bone Loss After Kidney and Kidney/Pancreas Transplants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Renal Insufficiency"
      ],
      "interventions": [
        {
          "name": "Zoledronic Acid",
          "type": "DRUG"
        },
        {
          "name": "Calcium with vitamin D",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Alendronate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 59,
      "start_date": "2003-12-01",
      "completion_date": "2014-07-29",
      "has_results": true,
      "last_update_posted_date": "2023-10-04",
      "last_synced_at": "2026-09-24T07:49:44.713Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00580047"
    }
  ]
}