One shot of radiation could replace weeks of treatment for some breast cancers

NCT ID NCT05350722

First seen Jul 16, 2026 · Last updated Jul 17, 2026 · Updated 1 time

Summary

This trial investigates whether a single, high dose of MRI-guided radiation given before surgery can completely eliminate low-risk breast cancer. Women aged 50 and older with small, early-stage tumors receive one radiation dose, then wait 6 to 12 months before surgery to see if the cancer is gone. The goal is to find a simpler, less invasive treatment option that might avoid the need for standard radiation or even surgery.

What this could mean

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

Active substance
single dose ablative radiotherapy
What this could lead to
If successful, this approach could allow some low-risk breast cancer patients to avoid surgery or standard radiation, reducing treatment burden.
What could go wrong
This is an early-phase trial with only 100 participants, so results may not apply broadly. The single dose may not fully eliminate the tumor, and long-term safety is unknown.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm Pathologic Complete Response

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

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

Locations

  • Amsterdam UMC

    RECRUITING

    Amsterdam, Netherlands

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

  • Canisius Wilhelmina Ziekenhuis

    RECRUITING

    Nijmegen, Netherlands

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

  • Flevoziekenhuis

    RECRUITING

    Almere Stad, Netherlands

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

  • GenesisCare

    NOT_YET_RECRUITING

    Sydney, Australia

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

  • Radboud UMC

    RECRUITING

    Nijmegen, Netherlands

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

  • Zaans Medisch Centrum

    RECRUITING

    Zaandam, Netherlands

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

  • Ziekenhuis Amstelland

    RECRUITING

    Amstelveen, Netherlands

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

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