{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Iodine+I+131&page=4",
    "query": {
      "intervention": "Iodine I 131",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 102,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Iodine+I+131&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Iodine+I+131&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T01:33:38.891Z",
  "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": "NCT00004017",
      "title": "Radiolabeled Monoclonal Antibody in Treating Patients With Glioblastoma Multiforme or Anaplastic Astrocytoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "iodine I 131 monoclonal antibody TNT-1/B",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Peregrine Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2000-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2009-02-09",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 4,
      "location_summary": "Charlotte, North Carolina • Philadelphia, Pennsylvania • Charleston, South Carolina + 1 more",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004017"
    },
    {
      "nct_id": "NCT00006721",
      "title": "S0016 Combination Chemotherapy With Monoclonal Antibody Therapy in Newly Diagnosed Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        },
        {
          "name": "vincristine",
          "type": "DRUG"
        },
        {
          "name": "tositumomab",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 571,
      "start_date": "2001-03",
      "completion_date": "2025-12",
      "has_results": true,
      "last_update_posted_date": "2026-03-16",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 259,
      "location_summary": "Anchorage, Alaska • Fairbanks, Alaska • Fort Smith, Arkansas + 167 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Fairbanks",
          "state": "Alaska"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006721"
    },
    {
      "nct_id": "NCT00004062",
      "title": "Azacitidine to Restore Thyroid Function in Patients With Persistent or Metastatic Thyroid Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "azacitidine",
          "type": "DRUG"
        },
        {
          "name": "liothyronine sodium",
          "type": "DRUG"
        },
        {
          "name": "iodine I 131",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Lucille P. Markey Cancer Center at University of Kentucky",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": null,
      "start_date": "1999-07",
      "completion_date": "2006-08",
      "has_results": false,
      "last_update_posted_date": "2013-12-19",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004062"
    },
    {
      "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": "2026-10-09T01:33:38.891Z",
      "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": "NCT00342693",
      "title": "Thyroid Abnormalities Associated With Exposure to Atmospheric Emissions of Radioactive Iodine",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thyroid Abnormalities"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "51 Years",
        "maximum_age": "52 Years",
        "sex": "ALL",
        "summary": "51 Years to 52 Years"
      },
      "enrollment_count": 360,
      "start_date": "2006-02-21",
      "completion_date": "2013-09-03",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00342693"
    },
    {
      "nct_id": "NCT00416949",
      "title": "Iodine I 131 in Treating Patients With Thyroid Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "Patient-specific dosimetry",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 9,
      "start_date": "2006-04",
      "completion_date": "2009-10",
      "has_results": true,
      "last_update_posted_date": "2018-07-18",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00416949"
    },
    {
      "nct_id": "NCT00128635",
      "title": "Iodine I 131 Monoclonal Antibody TNT-1/B in Treating Patients With Progressive or Recurrent Glioblastoma Multiforme",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "iodine I 131 monoclonal antibody TNT-1/B",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 22,
      "start_date": "2005-10",
      "completion_date": "2007-10",
      "has_results": false,
      "last_update_posted_date": "2016-02-19",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 4,
      "location_summary": "Birmingham, Alabama • Atlanta, Georgia • Winston-Salem, North Carolina + 1 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00128635"
    },
    {
      "nct_id": "NCT00509353",
      "title": "N2004-06: Irinotecan and Vincristine With 131I-MIBG Therapy for Resistant/Relapsed High-Risk Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "irinotecan hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "iobenguane I 131",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "New Approaches to Neuroblastoma Therapy Consortium",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "1 Year to 30 Years"
      },
      "enrollment_count": 26,
      "start_date": "2007-01",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 12,
      "location_summary": "Los Angeles, California • Palo Alto, California • San Francisco, California + 9 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00509353"
    },
    {
      "nct_id": "NCT00002753",
      "title": "Monoclonal Antibody Therapy in Treating Patients With Recurrent Gliomas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "iodine I 131 monoclonal antibody 81C6",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "1991-11",
      "completion_date": "2001-04",
      "has_results": false,
      "last_update_posted_date": "2013-02-18",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002753"
    },
    {
      "nct_id": "NCT00089245",
      "title": "Radiolabeled MAB Therapy in Patients With Refractory, Recurrent, or Advanced CNS or Leptomeningeal Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors",
        "Neuroblastoma",
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "Iodine I 131 MOAB 8H9",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Y-mAbs Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 177,
      "start_date": "2004-02-05",
      "completion_date": "2022-02-02",
      "has_results": false,
      "last_update_posted_date": "2023-12-26",
      "last_synced_at": "2026-10-09T01:33:38.891Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00089245"
    }
  ]
}