{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=RET-positive+Thyroid+Cancer",
    "query": {
      "condition": "RET-positive Thyroid Cancer"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T00:20:17.335Z",
  "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": "NCT05241834",
      "title": "A Study of LOXO-260 in Cancer Patients With a Change in a Particular Gene (RET) That Has Not Responded to Treatment",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Carcinoma, Non-Small-Cell Lung",
        "Thyroid Neoplasms"
      ],
      "interventions": [
        {
          "name": "LOXO-260",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2022-03-23",
      "completion_date": "2026-06",
      "has_results": false,
      "last_update_posted_date": "2025-09-04",
      "last_synced_at": "2026-07-24T00:20:17.335Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • San Francisco, California • Atlanta, Georgia + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05241834"
    },
    {
      "nct_id": "NCT03037385",
      "title": "Phase 1/2 Study of the Highly-selective RET Inhibitor, Pralsetinib (BLU-667), in Participants With Thyroid Cancer, Non-Small Cell Lung Cancer, and Other Advanced Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "RET-altered Non Small Cell Lung Cancer",
        "Medullary Thyroid Cancer",
        "RET-altered Papillary Thyroid Cancer",
        "RET-altered Colon Cancer",
        "RET-altered Solid Tumors",
        "Lung Neoplasm",
        "Carcinoma, Non-Small-Cell Lung",
        "Thyroid Diseases",
        "Thyroid Neoplasm",
        "Thyroid Cancer, Papillary",
        "Carcinoma, Neuroendocrine",
        "Respiratory Tract Neoplasms",
        "Thoracic Neoplasms",
        "Neoplasms by Site",
        "Neoplasms",
        "Lung Diseases",
        "Respiratory Tract Disease",
        "Carcinoma, Bronchogenic",
        "Bronchial Neoplasms",
        "Endocrine System Diseases",
        "Endocrine Gland Neoplasm",
        "Head and Neck Neoplasms",
        "Adenocarcinoma, Papillary",
        "Adenocarcinoma",
        "Carcinoma",
        "Neoplasms, Glandular and Epithelial",
        "Neoplasms by Histologic Type",
        "Neuroendocrine Tumors",
        "Neuroectodermal Tumors",
        "Neoplasms, Germ Cell and Embryonal",
        "Neoplasms, Nerve Tissue",
        "Colonic Neoplasms",
        "Colorectal Neoplasms",
        "Intestinal Neoplasms",
        "Gastrointestinal Neoplasms",
        "Digestive System Neoplasm",
        "Digestive System Disease",
        "Gastrointestinal Disease",
        "Colonic Diseases",
        "Intestinal Disease"
      ],
      "interventions": [
        {
          "name": "pralsetinib (BLU-667)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 590,
      "start_date": "2017-03-17",
      "completion_date": "2024-03-21",
      "has_results": true,
      "last_update_posted_date": "2025-05-31",
      "last_synced_at": "2026-07-24T00:20:17.335Z",
      "location_count": 18,
      "location_summary": "Phoenix, Arizona • Orange, California • Aurora, Colorado + 15 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03037385"
    },
    {
      "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": "2026-07-24T00:20:17.335Z",
      "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": "NCT03131206",
      "title": "A Study of Alectinib in RET-rearranged Non-small Cell Lung Cancer or RET-mutated Thyroid Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "ALK-positive Non-small Cell Lung Cancer (NSCLC)",
        "RET-positive Non-small Cell Lung Cancer (NSCLC)",
        "RET-positive Thyroid Cancer"
      ],
      "interventions": [
        {
          "name": "Alectinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2017-06-19",
      "completion_date": "2019-04-08",
      "has_results": true,
      "last_update_posted_date": "2021-09-27",
      "last_synced_at": "2026-07-24T00:20:17.335Z",
      "location_count": 4,
      "location_summary": "Irvine, California • Boston, Massachusetts",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03131206"
    },
    {
      "nct_id": "NCT03157128",
      "title": "A Study of Selpercatinib (LOXO-292) in Participants With Advanced Solid Tumors, RET Fusion-Positive Solid Tumors, and Medullary Thyroid Cancer (LIBRETTO-001)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Non-Small Cell Lung Cancer",
        "Medullary Thyroid Cancer",
        "Colon Cancer",
        "Any Solid Tumor"
      ],
      "interventions": [
        {
          "name": "LOXO-292",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 857,
      "start_date": "2017-05-02",
      "completion_date": "2027-02",
      "has_results": true,
      "last_update_posted_date": "2026-04-16",
      "last_synced_at": "2026-07-24T00:20:17.335Z",
      "location_count": 41,
      "location_summary": "Scottsdale, Arizona • Duarte, California • Los Angeles, California + 33 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03157128"
    },
    {
      "nct_id": "NCT01838642",
      "title": "Ponatinib for Advanced Medullary Thyroid Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Thyroid Neoplasms"
      ],
      "interventions": [
        {
          "name": "Ponatinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "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": "2013-03",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2017-02-15",
      "last_synced_at": "2026-07-24T00:20:17.335Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01838642"
    }
  ]
}