New combo therapy shows promise for Radioiodine-Resistant thyroid cancer

NCT ID NCT04544111

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 2 trial tests a combination of the immunotherapy drug PDR001 with either trametinib or dabrafenib in 19 patients with thyroid cancer that no longer responds to radioiodine treatment. The goal is to see if the combination can shrink tumors. The study is active but no longer recruiting participants.

What this could mean

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

Active substance
PDR001 (an immunotherapy drug) combined with either trametinib or dabrafenib (targeted therapy drugs)
What this could lead to
If successful, this could provide a new treatment option for people with thyroid cancer that no longer responds to standard radioiodine therapy.
What could go wrong
This is a small, early-phase trial with only 19 participants, so results may not apply to everyone. The combination therapy may cause significant side effects or fail to shrink tumors.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)

    Basking Ridge, New Jersey, 07920, United States

  • Memorial Sloan Kettering Bergen (Limited Protocol Activities)

    Montvale, New Jersey, 07645, United States

  • Memorial Sloan Kettering Cancer Center (All Protocol Activities)

    New York, New York, 10065, United States

  • Memorial Sloan Kettering Cancer Center @ Suffolk - Commack (Limited Protocol Activities)

    Commack, New York, 11725, United States

  • Memorial Sloan Kettering Monmouth (Limited protocol activities)

    Middletown, New Jersey, 07748, United States

  • Memorial Sloan Kettering Nassau (Limited protocol activities)

    Rockville Centre, New York, 11553, United States

  • Memorial Sloan Kettering Westchester (Limited protocol activities)

    Harrison, New York, 10604, United States

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