{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hyperphosphatemia",
    "query": {
      "condition": "Hyperphosphatemia"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 57,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hyperphosphatemia&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-21T22:22:25.389Z",
  "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": "NCT01003223",
      "title": "Phosphate Kinetic Modeling",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "End Stage Renal Disease",
        "Hyperphosphatemia"
      ],
      "interventions": [
        {
          "name": "Computer algorithm management of hyperphosphatemia",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Fresenius Medical Care North America",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 190,
      "start_date": "2009-10",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2014-08-18",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 1,
      "location_summary": "Waltham, Massachusetts",
      "locations": [
        {
          "city": "Waltham",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01003223"
    },
    {
      "nct_id": "NCT00506441",
      "title": "A Phase 3, Randomized, Double Blind, Placebo-Controlled, Multi-Center, Withdrawal Study of MCI-196 in CKD on Dialysis With Hyperphosphatemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Kidney Disease",
        "Dialysis",
        "Hyperphosphatemia"
      ],
      "interventions": [
        {
          "name": "MCI-196",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tanabe Pharma Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 245,
      "start_date": "2007-09",
      "completion_date": "2009-09",
      "has_results": true,
      "last_update_posted_date": "2026-01-08",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 38,
      "location_summary": "Glendale, Arizona • Tempe, Arizona • Hot Springs, Arkansas + 35 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Paragould",
          "state": "Arkansas"
        },
        {
          "city": "Pine Bluff",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00506441"
    },
    {
      "nct_id": "NCT01074125",
      "title": "A 4-Week Dose-Ranging and Efficacy Trial of KRX-0502 (Ferric Citrate) in Patients With End-Stage Renal Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hyperphosphatemia",
        "End-Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "ferric citrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Keryx Biopharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 154,
      "start_date": "2010-05",
      "completion_date": "2010-11",
      "has_results": true,
      "last_update_posted_date": "2014-12-04",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 15,
      "location_summary": "Westminster, Colorado • Pembroke Pines, Florida • Augusta, Georgia + 10 more",
      "locations": [
        {
          "city": "Westminster",
          "state": "Colorado"
        },
        {
          "city": "Pembroke Pines",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Springfield",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01074125"
    },
    {
      "nct_id": "NCT02965053",
      "title": "A Phase1 Study to Explore the Safety of EOS789 in Patients With Chronic Kidney Disease and Hyperphosphatemia on Hemodialysis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hyperphosphatemia"
      ],
      "interventions": [
        {
          "name": "EOS789",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Renvela",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Chugai Pharmaceutical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2016-12",
      "completion_date": "2018-08",
      "has_results": false,
      "last_update_posted_date": "2018-09-13",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02965053"
    },
    {
      "nct_id": "NCT00660530",
      "title": "Chewed vs. Crushed Lanthanum Carbonate in Hemodialysis Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hyperphosphatemia",
        "Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Lanthanum Carbonate Chewable Product",
          "type": "DRUG"
        },
        {
          "name": "Lanthanum carbonate crushed powder",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2008-01",
      "completion_date": "2009-11",
      "has_results": true,
      "last_update_posted_date": "2020-11-03",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00660530"
    },
    {
      "nct_id": "NCT02688764",
      "title": "A Study to Investigate the Safety and Efficacy of PA21 (Velphoro®) and Calcium Acetate (Phoslyra®) in Paediatric and Adolescent Chronic Kidney Disease (CKD) Patients With Hyperphosphataemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hyperphosphatemia"
      ],
      "interventions": [
        {
          "name": "PA21 (Velphoro®)",
          "type": "DRUG"
        },
        {
          "name": "Calcium Acetate (Phoslyra®)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vifor Fresenius Medical Care Renal Pharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 85,
      "start_date": "2016-05-26",
      "completion_date": "2019-02-21",
      "has_results": true,
      "last_update_posted_date": "2019-09-10",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • Washington D.C., District of Columbia • Miami, Florida + 17 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02688764"
    },
    {
      "nct_id": "NCT00742820",
      "title": "Bioequivalence Study Comparing Calcium Acetate Oral Solution Versus Calcium Acetate Gelcaps in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hyperphosphatemia"
      ],
      "interventions": [
        {
          "name": "Calcium Acetate Oral Solution 667 mg per 5 mL",
          "type": "DRUG"
        },
        {
          "name": "Calcium Acetate 667 mg GelCaps",
          "type": "DRUG"
        },
        {
          "name": "Calcium Citrate 950 mg Caplets",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Fresenius Medical Care North America",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 46,
      "start_date": "2008-08",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2009-02-09",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00742820"
    },
    {
      "nct_id": "NCT00268957",
      "title": "Study to Compare Sevelamer Carbonate Powder to Sevelamer Hydrochloride Tablets in Patients With CKD on Hemodialysis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Kidney Diseases",
        "Chronic Renal Insufficiency",
        "End-Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "Sevelamer carbonate (Renvela®)",
          "type": "DRUG"
        },
        {
          "name": "Sevelamer hydrochloride (Renagel®)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Genzyme, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 217,
      "start_date": "2006-01",
      "completion_date": "2007-05",
      "has_results": false,
      "last_update_posted_date": "2014-03-19",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Gadsden, Alabama • Mission Hills, California + 26 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Gadsden",
          "state": "Alabama"
        },
        {
          "city": "Mission Hills",
          "state": "California"
        },
        {
          "city": "Tarzana",
          "state": "California"
        },
        {
          "city": "Crystal River",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00268957"
    },
    {
      "nct_id": "NCT04046263",
      "title": "Effect of Velphoro on Serum Phosphate and Albumin in Peritoneal Dialysis Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Peritoneal Dialysis Complication",
        "Hyperphosphatemia",
        "Hypoalbuminemia"
      ],
      "interventions": [
        {
          "name": "Sucroferric Oxyhydroxide Chewable Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "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": 17,
      "start_date": "2020-02-01",
      "completion_date": "2021-07-31",
      "has_results": true,
      "last_update_posted_date": "2022-08-31",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04046263"
    },
    {
      "nct_id": "NCT03988920",
      "title": "A Long-Term Study of Tenapanor Alone or in Combination With Sevelamer in Patients With CKD on Dialysis and HP",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hyperphosphatemia",
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "Tenapanor",
          "type": "DRUG"
        },
        {
          "name": "Sevelamer Carbonate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ardelyx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 172,
      "start_date": "2019-06-15",
      "completion_date": "2021-07-31",
      "has_results": true,
      "last_update_posted_date": "2023-03-29",
      "last_synced_at": "2026-05-21T22:22:25.389Z",
      "location_count": 1,
      "location_summary": "Houston, California",
      "locations": [
        {
          "city": "Houston",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03988920"
    }
  ]
}