New combo therapy aims to boost thyroid cancer treatment in kids and young adults

NCT ID NCT06458036

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether giving the targeted drug selpercatinib for 6 months before standard radioactive iodine therapy can improve outcomes for children, adolescents, and young adults (ages 2-25) with a specific type of thyroid cancer linked to RET gene fusions. The goal is to see if selpercatinib makes cancer cells absorb more radioactive iodine, leading to better tumor shrinkage and fewer side effects. The trial will enroll 13 participants and track response rates, safety, and long-term survival.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Selpercatinib (a targeted cancer drug) and radioactive iodine (131I) therapy

What this could lead to

If successful, this approach could make radioactive iodine therapy more effective for young patients with RET fusion thyroid cancer, potentially reducing the need for repeat treatments and lowering long-term side effects.

What could go wrong

This is a small, early-phase trial with only 13 participants, so results may not apply to everyone. Selpercatinib can cause side effects like liver problems or high blood pressure, and the combination with radioactive iodine may increase risks of lung damage or secondary cancers.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

cancer childhood malignant neoplasm differentiated thyroid carcinoma neoplasm thyroid cancer Thyroid Neoplasms

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Children's Hospital of Philadelphia

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • MD Anderson Cancer Center

    NOT_YET_RECRUITING

    Houston, Texas, 77030, United States

    Contact

  • Seattle Children's Hospital

    NOT_YET_RECRUITING

    Seattle, Washington, 98105, United States

    Contact

  • St. Jude Children's Research Hospital

    RECRUITING

    Memphis, Tennessee, 38105, United States

    Contact