Blood test could help throat cancer patients get less radiation

NCT ID NCT05541016

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase II trial tests whether a blood test that detects HPV DNA can help doctors decide the right amount of radiation for people with HPV-positive throat cancer. About 455 participants will either have surgery or receive standard chemotherapy plus radiation, but the radiation dose may be lowered if the blood test shows a low risk of recurrence. The goal is to maintain high cure rates while reducing harsh side effects like trouble swallowing and dry mouth.

What this could mean

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

Active substance
Cisplatin chemotherapy and radiation therapy, guided by a blood test (NavDx) that detects HPV DNA
What this could lead to
If successful, this approach could allow doctors to safely lower radiation doses for many patients, reducing long-term side effects without raising the risk of cancer returning.
What could go wrong
This is a mid-stage trial with 455 participants, so results are not yet proven. The blood test may not accurately predict who needs less treatment, and some patients might still experience cancer recurrence or side effects.

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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

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Mayo Clinic in Arizona

    RECRUITING

    Scottsdale, Arizona, 85259, United States

    Contact Email: •••••@•••••

  • Mayo Clinic in Florida

    RECRUITING

    Jacksonville, Florida, 32224-9980, United States

    Contact Email: •••••@•••••

  • Mayo Clinic in Rochester

    RECRUITING

    Rochester, Minnesota, 55905, United States

    Contact Email: •••••@•••••

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