{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Radioiodine",
    "query": {
      "intervention": "Radioiodine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 51,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Radioiodine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T07:14:59.533Z",
  "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": "NCT05668962",
      "title": "Restor. I-131 Upt. + Selpercatinib in RET F-P RAI-R TC",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Thyroid Cancer",
        "Thyroid Carcinoma",
        "Metastatic Thyroid Cancer",
        "Follicular Thyroid Cancer",
        "Unresectable Thyroid Gland Carcinoma",
        "Papillary Thyroid Cancer"
      ],
      "interventions": [
        {
          "name": "Selpercatinib",
          "type": "DRUG"
        },
        {
          "name": "Sodium Iodine I-131",
          "type": "DRUG"
        },
        {
          "name": "rhTSH",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2023-03-01",
      "completion_date": "2026-01-01",
      "has_results": false,
      "last_update_posted_date": "2024-12-12",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 6,
      "location_summary": "Washington D.C., District of Columbia • Tampa, Florida • Boston, Massachusetts + 3 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05668962"
    },
    {
      "nct_id": "NCT06028282",
      "title": "Post-RAI Therapy Dosimetry and Quality Assessment of Target Tissue Dosing",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thyroid Disease"
      ],
      "interventions": [
        {
          "name": "SPECT",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "State University of New York - Upstate Medical University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2021-11-08",
      "completion_date": "2025-06-08",
      "has_results": false,
      "last_update_posted_date": "2023-12-11",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06028282"
    },
    {
      "nct_id": "NCT06959641",
      "title": "XL092 for the Treatment of Locally Advanced or Metastatic Radioiodine Refractory Differentiated Thyroid Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Locally Advanced Differentiated Thyroid Gland Carcinoma",
        "Locally Advanced Poorly Differentiated Thyroid Gland Carcinoma",
        "Locally Advanced Thyroid Gland Follicular Carcinoma",
        "Locally Advanced Thyroid Gland Oncocytic Carcinoma",
        "Locally Advanced Thyroid Gland Papillary Carcinoma",
        "Metastatic Differentiated Thyroid Gland Carcinoma",
        "Metastatic Poorly Differentiated Thyroid Gland Carcinoma",
        "Metastatic Thyroid Gland Follicular Carcinoma",
        "Metastatic Thyroid Gland Oncocytic Carcinoma",
        "Metastatic Thyroid Gland Papillary Carcinoma",
        "Refractory Differentiated Thyroid Gland Carcinoma",
        "Refractory Poorly Differentiated Thyroid Gland Carcinoma",
        "Refractory Thyroid Gland Follicular Carcinoma",
        "Refractory Thyroid Gland Oncocytic Carcinoma",
        "Refractory Thyroid Gland Papillary Carcinoma",
        "Stage III Differentiated Thyroid Gland Carcinoma AJCC v8",
        "Stage III Thyroid Gland Follicular Carcinoma AJCC v8",
        "Stage III Thyroid Gland Papillary Carcinoma AJCC v8",
        "Stage IV Differentiated Thyroid Gland Carcinoma AJCC v8",
        "Stage IV Thyroid Gland Follicular Carcinoma AJCC v8",
        "Stage IV Thyroid Gland Papillary Carcinoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        },
        {
          "name": "X-Ray Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Zanzalintinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Jochen Lorch",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2025-06-06",
      "completion_date": "2030-09-11",
      "has_results": false,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 2,
      "location_summary": "Torrance, California • Chicago, Illinois",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06959641"
    },
    {
      "nct_id": "NCT02145143",
      "title": "Enhancing Radioiodine (RAI) Incorporation Into BRAF Mutant, RAI-Refractory Thyroid Cancers With the BRAF Inhibitor Vemurafenib: A Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Thyroid Carcinoma"
      ],
      "interventions": [
        {
          "name": "Vemurafenib",
          "type": "DRUG"
        },
        {
          "name": "serial 124I PET/CT",
          "type": "DEVICE"
        },
        {
          "name": "thyrotropin alpha",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2014-05-20",
      "completion_date": "2024-11-21",
      "has_results": false,
      "last_update_posted_date": "2025-06-18",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02145143"
    },
    {
      "nct_id": "NCT04495985",
      "title": "CASE 1320: RAI Uptake and Serum Prolactin in Thyroid Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thyroid Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 39,
      "start_date": "2020-07-14",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04495985"
    },
    {
      "nct_id": "NCT01876784",
      "title": "Evaluation of Efficacy, Safety of Vandetanib in Patients With Differentiated Thyroid Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Differentiated Thyroid Cancer"
      ],
      "interventions": [
        {
          "name": "Vandetanib (SAR390530)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 238,
      "start_date": "2013-09-17",
      "completion_date": "2022-01-22",
      "has_results": true,
      "last_update_posted_date": "2024-07-23",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 10,
      "location_summary": "Little Rock, Arkansas • Torrance, California • Lexington, Kentucky + 7 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01876784"
    },
    {
      "nct_id": "NCT00784303",
      "title": "Evaluating the Safety and Efficacy of Oral Lenvatinib in Medullary and Iodine-131 Refractory, Unresectable Differentiated Thyroid Cancers, Stratified by Histology",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Thyroid Cancer"
      ],
      "interventions": [
        {
          "name": "Lenvatinib (DTC Cohort)",
          "type": "DRUG"
        },
        {
          "name": "Lenvatinib (MTC Cohort)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 117,
      "start_date": "2008-11-06",
      "completion_date": "2019-03-29",
      "has_results": true,
      "last_update_posted_date": "2020-04-22",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 23,
      "location_summary": "Little Rock, Arkansas • Los Angeles, California • Los Gatos, California + 20 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Gatos",
          "state": "California"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00784303"
    },
    {
      "nct_id": "NCT00287287",
      "title": "REVLIMID® (Lenalidomide) for Therapy of Radioiodine-Unresponsive Papillary and Follicular Thyroid Carcinomas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Thyroid Neoplasms"
      ],
      "interventions": [
        {
          "name": "Lenalidomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kenneth Ain",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2006-02",
      "completion_date": "2010-07-06",
      "has_results": true,
      "last_update_posted_date": "2020-06-12",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00287287"
    },
    {
      "nct_id": "NCT03841617",
      "title": "The Use of 124-I-PET/CT Whole Body and Lesional Dosimetry in Differentiated Thyroid Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Thyroid Cancer"
      ],
      "interventions": [
        {
          "name": "Thyrogen",
          "type": "DRUG"
        },
        {
          "name": "I-131",
          "type": "RADIATION"
        },
        {
          "name": "I-124",
          "type": "RADIATION"
        },
        {
          "name": "Thyroid hormone withdrawal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 30,
      "start_date": "2019-07-29",
      "completion_date": "2035-11-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-28",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03841617"
    },
    {
      "nct_id": "NCT02211222",
      "title": "An Expanded Access Program With Lenvatinib for the Treatment of Radioiodine-Refractory Differentiated Thyroid Cancer",
      "overall_status": "APPROVED_FOR_MARKETING",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Differentiated Thyroid Cancer"
      ],
      "interventions": [
        {
          "name": "Lenvatinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2016-03-16",
      "last_synced_at": "2026-09-06T07:14:59.533Z",
      "location_count": 13,
      "location_summary": "La Jolla, California • Stanford, California • Torrance, California + 10 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02211222"
    }
  ]
}