{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Calcium+Carbonate",
    "query": {
      "intervention": "Calcium Carbonate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 157,
    "total_pages": 16,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Calcium+Carbonate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T09:27:08.559Z",
  "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": "NCT01357317",
      "title": "Study Comparing Effects of Lanthanum Carbonate Versus Calcium Acetate Versus Dietary Phosphorus Restriction",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Diet counseling",
          "type": "OTHER"
        },
        {
          "name": "Phosphorus binder",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Salem Veterans Affairs Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2011-06",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2012-06-12",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "Salem, Virginia",
      "locations": [
        {
          "city": "Salem",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01357317"
    },
    {
      "nct_id": "NCT02039778",
      "title": "Stem Cell Radiotherapy and Temozolomide for Newly Diagnosed High-grade Glioma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glioblastoma",
        "Malignant Glioma",
        "Brain Tumors",
        "Anaplastic Astrocytoma"
      ],
      "interventions": [
        {
          "name": "Stem Cell Radiotherapy (ScRT) and Temozolomide",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Beth Israel Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 4,
      "start_date": "2013-12",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2017-06-05",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02039778"
    },
    {
      "nct_id": "NCT05564039",
      "title": "A Study of Tirzepatide (LY3298176) in Adult Participants With Type 2 Diabetes Switching From Dulaglutide (SURPASS-SWITCH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Tirzepatide",
          "type": "DRUG"
        },
        {
          "name": "Dulaglutide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 282,
      "start_date": "2022-11-30",
      "completion_date": "2024-08-12",
      "has_results": true,
      "last_update_posted_date": "2025-08-03",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 11,
      "location_summary": "Cooper City, Florida • West Palm Beach, Florida • Skokie, Illinois + 6 more",
      "locations": [
        {
          "city": "Cooper City",
          "state": "Florida"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Skokie",
          "state": "Illinois"
        },
        {
          "city": "West Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Springfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05564039"
    },
    {
      "nct_id": "NCT01005927",
      "title": "Fructooligosaccharide and Calcium Absorption in Adolescent Girls",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "Fructooligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "12 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 12 Years · Female only"
      },
      "enrollment_count": 26,
      "start_date": "2009-01",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2018-05-07",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01005927"
    },
    {
      "nct_id": "NCT01475617",
      "title": "Efficacy of a Novel Multivitamin-Mineral Supplement in Preventing Vitamin Deficiency in Postoperative Bariatric Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Bariatric Surgery Candidate"
      ],
      "interventions": [
        {
          "name": "AquaVanta Chewable Tablet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Flinstones Complete",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nature Made Calcium Softgels",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Twin Labs Iron Caps",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Rexall Vitamin B12 Tablet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Yasoo Health",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 61,
      "start_date": "2011-11",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2015-01-22",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01475617"
    },
    {
      "nct_id": "NCT05418127",
      "title": "An Efficacy Trial in the Research Area of Gastrointestinal Health & Bloating",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gastrointestinal Dysfunction"
      ],
      "interventions": [
        {
          "name": "Active",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Coconut Goodness Food Products Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "54 Years",
        "sex": "ALL",
        "summary": "25 Years to 54 Years"
      },
      "enrollment_count": 60,
      "start_date": "2022-05-16",
      "completion_date": "2023-03-31",
      "has_results": false,
      "last_update_posted_date": "2023-01-19",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05418127"
    },
    {
      "nct_id": "NCT03380754",
      "title": "Effects of Preoperative Carbohydrate Rich Drinks on Immediate Postoperative Outcome in Total Knee Arthroplasty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post Operative Nausea and Vomiting"
      ],
      "interventions": [
        {
          "name": "Nutricia preOp",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nestle Splash Lemon Flavor Water (Placebo)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2017-07-15",
      "completion_date": "2019-08-01",
      "has_results": false,
      "last_update_posted_date": "2020-02-17",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03380754"
    },
    {
      "nct_id": "NCT00074711",
      "title": "Adding Phosphorus to Osteoporosis Drug Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Osteoporosis",
        "Osteopenia"
      ],
      "interventions": [
        {
          "name": "Calcium carbonate",
          "type": "DRUG"
        },
        {
          "name": "Calcium Phosphate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Creighton University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "FEMALE",
        "summary": "60 Years to 85 Years · Female only"
      },
      "enrollment_count": 241,
      "start_date": "2004-08",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2016-07-06",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00074711"
    },
    {
      "nct_id": "NCT00592137",
      "title": "Calcium, Dairy, and Body Fat in Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Energy Metabolism"
      ],
      "interventions": [
        {
          "name": "C (smoothies based on soy protein containing no additional calcium)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "B (smoothies based on soy protein containing calcium)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "A (smoothies based on dairy protein containing calcium)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "15 Years",
        "sex": "ALL",
        "summary": "12 Years to 15 Years"
      },
      "enrollment_count": 43,
      "start_date": "2004-04",
      "completion_date": "2004-08",
      "has_results": false,
      "last_update_posted_date": "2010-01-13",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00592137"
    },
    {
      "nct_id": "NCT01317940",
      "title": "Nutrition and Body Composition in Acute Lymphoblastic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Precursor Cell Lymphoblastic Leukemia-Lymphoma",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Vitamin D and Calcium Citrate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Children's Hospital Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "10 Years to 29 Years"
      },
      "enrollment_count": 76,
      "start_date": "2011-03",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2020-07-08",
      "last_synced_at": "2026-09-05T09:27:08.559Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01317940"
    }
  ]
}