{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+calcium+citrate",
    "query": {
      "intervention": "Oral calcium citrate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 22,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+calcium+citrate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T04:06:04.514Z",
  "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": "NCT06003348",
      "title": "Hydroxycitrate: A Novel Therapy for Calcium Phosphate Urinary Stones",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Calcium Phosphate Kidney Stones"
      ],
      "interventions": [
        {
          "name": "OHCit- standard dose",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Potassium Citrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "OHCit- low dose",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "21 Years to 99 Years"
      },
      "enrollment_count": 25,
      "start_date": "2023-12-13",
      "completion_date": "2028-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06003348"
    },
    {
      "nct_id": "NCT06335537",
      "title": "Impact of Sodium Bicarbonate on 24-hour Urine Parameters in Hypocitriuric and Uric Acid Stone Formers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Uric Acid Stones"
      ],
      "interventions": [
        {
          "name": "Potassium citrate",
          "type": "DRUG"
        },
        {
          "name": "Sodium bicarbonate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 100,
      "start_date": "2025-05-01",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2025-06-24",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 1,
      "location_summary": "Orange, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06335537"
    },
    {
      "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": "2026-09-25T04:06:04.514Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00580047"
    },
    {
      "nct_id": "NCT00472823",
      "title": "Vitamin D Supplementation in Older Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoporosis",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Calcium Citrate (Citracal)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Creighton University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "57 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "57 Years and older · Female only"
      },
      "enrollment_count": 273,
      "start_date": "2007-04",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2016-03-14",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00472823"
    },
    {
      "nct_id": "NCT02822222",
      "title": "Safety Study of RMJH-111b to Treat Essential Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Essential Hypertension"
      ],
      "interventions": [
        {
          "name": "Magnesium citrate, tribasic anhydrous soft gelatin capsule",
          "type": "DRUG"
        },
        {
          "name": "Placebo soft gelatin capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "RMJ Holdings, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 22,
      "start_date": "2016-06-10",
      "completion_date": "2016-07-07",
      "has_results": true,
      "last_update_posted_date": "2020-09-23",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 1,
      "location_summary": "Tustin, California",
      "locations": [
        {
          "city": "Tustin",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02822222"
    },
    {
      "nct_id": "NCT06321796",
      "title": "Microbiota Transfer Therapy for Children and Adults With Both Pitt Hopkins Syndrome and Gastrointestinal Disorders",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pitt Hopkins Syndrome"
      ],
      "interventions": [
        {
          "name": "MTP-101P",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Vancomycin",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Magnesium Citrate",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Antacid",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Placebo MTP-101P",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Placebo Vancomycin",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Gut-Brain-Axis Therapeutics Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "5 Years to 55 Years"
      },
      "enrollment_count": 20,
      "start_date": "2024-02-27",
      "completion_date": "2025-05",
      "has_results": false,
      "last_update_posted_date": "2024-03-20",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06321796"
    },
    {
      "nct_id": "NCT00336024",
      "title": "Combination Chemotherapy Followed By Peripheral Stem Cell Transplant in Treating Young Patients With Newly Diagnosed Supratentorial Primitive Neuroectodermal Tumors or High-Risk Medulloblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anaplastic Medulloblastoma",
        "Medulloblastoma",
        "Supratentorial Embryonal Tumor, Not Otherwise Specified",
        "Untreated Childhood Supratentorial Primitive Neuroectodermal Tumor"
      ],
      "interventions": [
        {
          "name": "Autologous Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Leucovorin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Thiotepa",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "2 Years",
        "sex": "ALL",
        "summary": "Up to 2 Years"
      },
      "enrollment_count": 91,
      "start_date": "2007-10-22",
      "completion_date": "2025-09-30",
      "has_results": true,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 129,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 100 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00336024"
    },
    {
      "nct_id": "NCT04369742",
      "title": "Treating COVID-19 With Hydroxychloroquine (TEACH)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Hydroxychloroquine (HCQ)",
          "type": "DRUG"
        },
        {
          "name": "Placebo: Calcium citrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 128,
      "start_date": "2020-04-15",
      "completion_date": "2021-04-01",
      "has_results": true,
      "last_update_posted_date": "2022-04-22",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 2,
      "location_summary": "Brooklyn, New York • New York, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04369742"
    },
    {
      "nct_id": "NCT02119468",
      "title": "Ixazomib Plus Pomalidomide and Dexamethasone in Treating Patients With Relapsed or Relapsed/Refractory Multiple Myeloma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Refractory Plasma Cell Myeloma",
        "Recurrent Plasma Cell Myeloma"
      ],
      "interventions": [
        {
          "name": "ixazomib citrate",
          "type": "DRUG"
        },
        {
          "name": "dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "pomalidomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "City of Hope 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": 32,
      "start_date": "2014-06-30",
      "completion_date": "2022-12-01",
      "has_results": true,
      "last_update_posted_date": "2024-03-15",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 5,
      "location_summary": "Scottsdale, Arizona • Duarte, California • Atlanta, Georgia + 2 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02119468"
    },
    {
      "nct_id": "NCT01204164",
      "title": "Phase 1 Study of TG02 Citrate in Patients With Advanced Hematological Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "AML",
        "ALL",
        "Blast Crisis",
        "MDS",
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "TG02 citrate",
          "type": "DRUG"
        },
        {
          "name": "Carfilzomib",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tragara Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2010-08",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2016-05-06",
      "last_synced_at": "2026-09-25T04:06:04.514Z",
      "location_count": 9,
      "location_summary": "Denver, Colorado • Atlanta, Georgia • Chicago, Illinois + 6 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Hackensack",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01204164"
    }
  ]
}