{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Calcium+Placebo&page=2",
    "query": {
      "intervention": "Calcium Placebo",
      "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?intervention=Calcium+Placebo&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T11:42:01.356Z",
  "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": "NCT00211978",
      "title": "EPIC(Effect of PhosLo on Phosphorus Levels in Chronic Kidney Disease)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hyperphosphatemia",
        "Kidney Failure"
      ],
      "interventions": [
        {
          "name": "calcium acetate",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nabi Biopharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110,
      "start_date": "2005-05",
      "completion_date": "2006-10",
      "has_results": false,
      "last_update_posted_date": "2008-01-08",
      "last_synced_at": "2026-09-25T11:42:01.356Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00211978"
    },
    {
      "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": "2026-09-25T11:42:01.356Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06003348"
    },
    {
      "nct_id": "NCT00051636",
      "title": "Safety and Efficacy Trial With Zoledronic Acid for the Treatment of Paget's Disease of Bone, Including an Extended Observation Period",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Paget's Disease of Bone"
      ],
      "interventions": [
        {
          "name": "Zoledronic Acid",
          "type": "DRUG"
        },
        {
          "name": "Risedronate",
          "type": "DRUG"
        },
        {
          "name": "Placebo to Risedronate",
          "type": "DRUG"
        },
        {
          "name": "Placebo to Zoledronic Acid",
          "type": "DRUG"
        },
        {
          "name": "Calcium and Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 172,
      "start_date": "2001-01",
      "completion_date": "2011-04",
      "has_results": true,
      "last_update_posted_date": "2012-05-15",
      "last_synced_at": "2026-09-25T11:42:01.356Z",
      "location_count": 12,
      "location_summary": "Santa Monica, California • Lakewood, Colorado • Boca Raton, Florida + 9 more",
      "locations": [
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Maywood",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00051636"
    },
    {
      "nct_id": "NCT03341962",
      "title": "Phase 2 Dose-finding IMU-838 for Ulcerative Colitis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ulcerative Colitis"
      ],
      "interventions": [
        {
          "name": "IMU-838",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Immunic AG",
      "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": 263,
      "start_date": "2018-03-15",
      "completion_date": "2022-11-16",
      "has_results": true,
      "last_update_posted_date": "2024-03-05",
      "last_synced_at": "2026-09-25T11:42:01.356Z",
      "location_count": 15,
      "location_summary": "Tucson, Arizona • Los Angeles, California • Ventura, California + 12 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Ventura",
          "state": "California"
        },
        {
          "city": "Lighthouse PT",
          "state": "Florida"
        },
        {
          "city": "Medley",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03341962"
    },
    {
      "nct_id": "NCT04723134",
      "title": "Evaluation of a Folic Acid Wound Treatment (FAWT) for Chronic, Early-Stage Diabetic Foot Ulcer (DFU) Healing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diabetic Foot Ulcer"
      ],
      "interventions": [
        {
          "name": "Folinic acid calcium salt",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Joseph Boykin, MD",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2021-12-01",
      "completion_date": "2024-09-24",
      "has_results": false,
      "last_update_posted_date": "2024-10-04",
      "last_synced_at": "2026-09-25T11:42:01.356Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04723134"
    },
    {
      "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": "2026-09-25T11:42:01.356Z",
      "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": "NCT01141972",
      "title": "The Role of Vitamin D in Menopause: Relationship to Menopausal Symptoms in Body Composition",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hot Flushes",
        "Menopause, Premature",
        "Obesity",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 60 Years · Female only"
      },
      "enrollment_count": 23,
      "start_date": "2010-09",
      "completion_date": "2012-02",
      "has_results": false,
      "last_update_posted_date": "2013-05-30",
      "last_synced_at": "2026-09-25T11:42:01.356Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01141972"
    },
    {
      "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": "2026-09-25T11:42:01.356Z",
      "location_count": 2,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        },
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01636570"
    },
    {
      "nct_id": "NCT00283686",
      "title": "HALT Progression of Polycystic Kidney Disease Study A",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Kidney, Polycystic"
      ],
      "interventions": [
        {
          "name": "Lisinopril",
          "type": "DRUG"
        },
        {
          "name": "Telmisartan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Standard Blood Pressure Control",
          "type": "OTHER"
        },
        {
          "name": "Low Blood Pressure Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "15 Years to 64 Years"
      },
      "enrollment_count": 558,
      "start_date": "2006-01",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2020-04-21",
      "last_synced_at": "2026-09-25T11:42:01.356Z",
      "location_count": 7,
      "location_summary": "Aurora, Colorado • Atlanta, Georgia • Kansas City, Kansas + 3 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00283686"
    },
    {
      "nct_id": "NCT00421408",
      "title": "The Effect of Protein Supplementation on Bone Health in Healthy Older Men and Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Bone Resorption",
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "Whey protein supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "60 Years to 85 Years"
      },
      "enrollment_count": 208,
      "start_date": "2007-02",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2020-04-09",
      "last_synced_at": "2026-09-25T11:42:01.356Z",
      "location_count": 2,
      "location_summary": "Farmington, Connecticut • New Haven, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00421408"
    }
  ]
}