{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Parathyroid+Dysfunction",
    "query": {
      "condition": "Parathyroid Dysfunction"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 226,
    "total_pages": 23,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Parathyroid+Dysfunction&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T08:23:35.740Z",
  "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": "NCT00508885",
      "title": "The Effect of Oral Niacinamide on Plasma Phosphorus Levels in Peritoneal Dialysis Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Hyperphosphatemia"
      ],
      "interventions": [
        {
          "name": "Niacinamide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2006-10",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2007-07-30",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00508885"
    },
    {
      "nct_id": "NCT03935984",
      "title": "Calcitonin Pre-treatment to Improve SPECT-CT Sensitivity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Primary Hyperparathyroidism",
        "Hypercalcemia"
      ],
      "interventions": [
        {
          "name": "Calcitonin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Joseph Sferra",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2019-05-29",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 1,
      "location_summary": "Toledo, Ohio",
      "locations": [
        {
          "city": "Toledo",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03935984"
    },
    {
      "nct_id": "NCT00169806",
      "title": "Randall's Plaque Study: Pathogenesis and Relationship to Nephrolithiasis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nephrocalcinosis",
        "Renal Calculi",
        "Hypercalciuria",
        "Hyperparathyroidism",
        "Cystinuria"
      ],
      "interventions": [
        {
          "name": "videotape for mapping of renal anatomy and papillary biopsy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana Kidney Stone Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "1998-11",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2025-01-23",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00169806"
    },
    {
      "nct_id": "NCT00859612",
      "title": "Renal Osteodystrophy: A Fresh Approach",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Renal Osteodystrophy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Hartmut Malluche, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 464,
      "start_date": "2009-03",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2017-05-05",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00859612"
    },
    {
      "nct_id": "NCT01545622",
      "title": "Surgeon Compared to Nuclear Radiology Readers for Tc-99m Sestamibi Scans for Parathyroid Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parathyroid Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2008-03",
      "completion_date": "2016-09-01",
      "has_results": false,
      "last_update_posted_date": "2017-08-31",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01545622"
    },
    {
      "nct_id": "NCT00792857",
      "title": "Comparison of I.V. CTAP201 and Doxercalciferol (Hectorol) in Subjects With Chronic Kidney Disease (CKD) and Secondary Hyperparathyroidism (SHPT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Chronic Kidney Disease",
        "Secondary Hyperparathyroidism",
        "Chronic Renal Insufficiency",
        "Chronic Renal Failure"
      ],
      "interventions": [
        {
          "name": "CTAP201 Injection",
          "type": "DRUG"
        },
        {
          "name": "Doxercalciferol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "OPKO IP Holdings II, Inc.",
      "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": 24,
      "start_date": "2008-11",
      "completion_date": "2009-10",
      "has_results": false,
      "last_update_posted_date": "2014-09-29",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 6,
      "location_summary": "Peoria, Arizona • Springfield, Massachusetts • Cincinnati, Ohio + 3 more",
      "locations": [
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Springfield",
          "state": "Massachusetts"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Allentown",
          "state": "Pennsylvania"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00792857"
    },
    {
      "nct_id": "NCT01268098",
      "title": "Study of Safety and Efficacy of a rhPTH[1-84] of Fixed Doses of 25 and 50 mcg in Adults With Hypoparathyroidism (RELAY)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypoparathyroidism"
      ],
      "interventions": [
        {
          "name": "NPSP558",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Shire",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 42,
      "start_date": "2011-02-09",
      "completion_date": "2011-11-11",
      "has_results": true,
      "last_update_posted_date": "2021-06-11",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 12,
      "location_summary": "Lakewood, California • Chicago, Illinois • Indianapolis, Indiana + 9 more",
      "locations": [
        {
          "city": "Lakewood",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01268098"
    },
    {
      "nct_id": "NCT06961071",
      "title": "Parathyroid Allotransplant for Treatment of Hypoparathyroidism",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Hypoparathyroidism",
        "Hypoparathyroidism Postprocedural",
        "Hypoparathyroidism Post-surgical"
      ],
      "interventions": [
        {
          "name": "Parathyroid Allotransplant",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Peter Stock",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3,
      "start_date": "2026-01-15",
      "completion_date": "2028-01-15",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06961071"
    },
    {
      "nct_id": "NCT05299632",
      "title": "F-18 PSMA for Localization of Parathyroid Adenoma",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hyperparathyroidism"
      ],
      "interventions": [
        {
          "name": "99mTc-MIBI planar imaging and SPECT/CT.",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "F- 18PSMA PET/CT imaging study",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 3,
      "start_date": "2022-03-31",
      "completion_date": "2022-05-09",
      "has_results": false,
      "last_update_posted_date": "2025-05-09",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Johns Creek, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Johns Creek",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05299632"
    },
    {
      "nct_id": "NCT02833857",
      "title": "A Single-dose Study in Paediatric Patients Aged 2 to Less Than 18 Years With Secondary Hyperparathyroidism (sHPT) Receiving Haemodialysis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Chronic Kidney Disease, Secondary Hyperparathyroidism"
      ],
      "interventions": [
        {
          "name": "Etelcalcetide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "2 Years to 17 Years"
      },
      "enrollment_count": 11,
      "start_date": "2017-03-14",
      "completion_date": "2018-10-31",
      "has_results": true,
      "last_update_posted_date": "2019-07-10",
      "last_synced_at": "2026-07-22T08:23:35.740Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • Louisville, Kentucky • Kansas City, Missouri",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02833857"
    }
  ]
}