{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=calcium",
    "query": {
      "intervention": "calcium"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 2090,
    "total_pages": 209,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=calcium&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-09T23:04:50.179Z",
  "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": "NCT02543944",
      "title": "Improving Treatment Outcomes for Prescription Opioid Dependence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Drug Dependence"
      ],
      "interventions": [
        {
          "name": "Gabapentin",
          "type": "DRUG"
        },
        {
          "name": "Buprenorphine",
          "type": "DRUG"
        },
        {
          "name": "Clonidine",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone (oral)",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone (depot)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Arkansas",
      "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": 117,
      "start_date": "2016-02",
      "completion_date": "2021-05-31",
      "has_results": true,
      "last_update_posted_date": "2022-07-28",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02543944"
    },
    {
      "nct_id": "NCT04720833",
      "title": "Effect of Dried Plum on Bone and Markers of Bone Status in Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoporosis",
        "Osteopenia"
      ],
      "interventions": [
        {
          "name": "dried plum",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Calcium and vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "79 Years",
        "sex": "MALE",
        "summary": "50 Years to 79 Years · Male only"
      },
      "enrollment_count": 66,
      "start_date": "2016-09-16",
      "completion_date": "2019-12-15",
      "has_results": false,
      "last_update_posted_date": "2021-01-22",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04720833"
    },
    {
      "nct_id": "NCT00182663",
      "title": "Thalidomide, Dexamethasone, and Clarithromycin in Treating Patients With Multiple Myeloma Previously Treated With Transplant",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Refractory Multiple Myeloma",
        "Stage I Multiple Myeloma",
        "Stage II Multiple Myeloma",
        "Stage III Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "clarithromycin",
          "type": "DRUG"
        },
        {
          "name": "thalidomide",
          "type": "DRUG"
        },
        {
          "name": "dexamethasone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "14 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2003-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-06-26",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00182663"
    },
    {
      "nct_id": "NCT00415584",
      "title": "Cinacalcet to Treat Hypercalcemia in Renal Transplant Recipients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Secondary Hyperparathyroidism",
        "Hypercalcemia"
      ],
      "interventions": [
        {
          "name": "Cinacalcet HCl",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore 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": 4,
      "start_date": "2007-02-09",
      "completion_date": "2009-11",
      "has_results": true,
      "last_update_posted_date": "2025-04-29",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00415584"
    },
    {
      "nct_id": "NCT00276757",
      "title": "Combination Chemotherapy in Treating Young Patients With Langerhans Cell Histiocytosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Childhood Langerhans Cell Histiocytosis"
      ],
      "interventions": [
        {
          "name": "leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "prednisolone",
          "type": "DRUG"
        },
        {
          "name": "vinblastine sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Histiocyte Society",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "Up to 17 Years"
      },
      "enrollment_count": 376,
      "start_date": "2001-04",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2014-01-10",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 4,
      "location_summary": "Minneapolis, Minnesota • Cincinnati, Ohio • Nashville, Tennessee + 1 more",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00276757"
    },
    {
      "nct_id": "NCT01769209",
      "title": "Bortezomib and Combination Chemotherapy in Treating Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "B-cell Adult Acute Lymphoblastic Leukemia (ALL)",
        "Ph-positive Adult Acute Lymphoblastic Leukemia (ALL)",
        "Recurrent Adult Acute Lymphoblastic Leukemia (ALL)",
        "T-cell Adult Acute Lymphoblastic Leukemia (ALL)"
      ],
      "interventions": [
        {
          "name": "Bortezomib",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin hydrochloride (HCl)",
          "type": "DRUG"
        },
        {
          "name": "PEG-Asparaginase",
          "type": "DRUG"
        },
        {
          "name": "Vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "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": "2013-03",
      "completion_date": "2017-07-04",
      "has_results": true,
      "last_update_posted_date": "2018-11-14",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01769209"
    },
    {
      "nct_id": "NCT00000429",
      "title": "Calcium Supplements for Bone Health in Juvenile Rheumatoid Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Juvenile Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "Calcium carbonate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Years to 18 Years"
      },
      "enrollment_count": 192,
      "start_date": "1996-06",
      "completion_date": "2001-05",
      "has_results": false,
      "last_update_posted_date": "2013-08-01",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000429"
    },
    {
      "nct_id": "NCT03406702",
      "title": "CX-8998 for Absence Seizures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Epilepsy"
      ],
      "interventions": [
        {
          "name": "CX-8998",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "16 Years to 55 Years"
      },
      "enrollment_count": 7,
      "start_date": "2018-02-25",
      "completion_date": "2019-03-29",
      "has_results": true,
      "last_update_posted_date": "2022-09-08",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 7,
      "location_summary": "Little Rock, Arkansas • Tampa, Florida • Lexington, Kentucky + 4 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03406702"
    },
    {
      "nct_id": "NCT00249912",
      "title": "Efficacy of Lapaquistat Acetate Alone or Combined With Rosuvastatin in Subjects With Hypercholesterolemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypercholesterolemia"
      ],
      "interventions": [
        {
          "name": "Lapaquistat acetate and rosuvastatin",
          "type": "DRUG"
        },
        {
          "name": "Rosuvastatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 415,
      "start_date": "2005-10",
      "completion_date": "2007-04",
      "has_results": false,
      "last_update_posted_date": "2012-05-24",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 82,
      "location_summary": "Birmingham, Alabama • Haleyville, Alabama • Mobile, Alabama + 79 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Haleyville",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00249912"
    },
    {
      "nct_id": "NCT00486512",
      "title": "Chemoprevention of Colorectal Adenomas",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Adenomatous Polyps"
      ],
      "interventions": [
        {
          "name": "0.5 mg calcitriol (1a -25-dihydroxycholecalciferol)",
          "type": "DRUG"
        },
        {
          "name": "75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3)",
          "type": "DRUG"
        },
        {
          "name": "placebo to 0.5 mg calcitriol (1a -25-dihydroxycholecalciferol)",
          "type": "DRUG"
        },
        {
          "name": "placebo to 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3)",
          "type": "DRUG"
        },
        {
          "name": "Colonoscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Colotech A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 350,
      "start_date": "2007-06",
      "completion_date": "2010-11",
      "has_results": false,
      "last_update_posted_date": "2020-09-03",
      "last_synced_at": "2026-09-09T23:04:50.179Z",
      "location_count": 24,
      "location_summary": "Huntsville, Alabama • San Diego, California • Clearwater, Florida + 20 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00486512"
    }
  ]
}