Radiation boosts standard therapy in advanced breast cancer trial

NCT ID NCT04563507

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 2 trial tests whether adding targeted radiation (SBRT) to standard hormone therapy and a CDK4/6 inhibitor can help women with metastatic HR+ HER2- breast cancer live longer without their disease worsening. About 102 participants will be randomly assigned to receive either standard therapy alone or standard therapy plus SBRT to each metastatic lesion. The study is currently recruiting.

What this could mean

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

Active substance

Stereotactic Body Radiation Therapy (SBRT)

What this could lead to

If successful, adding SBRT to standard hormone therapy and CDK4/6 inhibitors could delay cancer progression in women with metastatic breast cancer.

What could go wrong

This is a Phase 2 trial with only 102 participants, so results may not apply to all patients. Radiation side effects and the possibility that the combination offers no added benefit are key risks.

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.

breast cancer breast neoplasm hormone receptor-positive breast cancer

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: •••••@•••••

Locations

  • Brooklyn Methodist Hospital - NewYork Presbyterian

    RECRUITING

    New York, New York, 11215, United States

    Contact

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

  • New York Presbyterian Hospital - Queens

    RECRUITING

    New York, New York, 11355, United States

    Contact

    Contact Email: •••••@•••••

    Contact

  • Weill Cornell Medicine

    RECRUITING

    New York, New York, 10065, United States

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

    Contact