New trial aims to outsmart cancer by adjusting chemo doses in real time

NCT ID NCT06525766

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

Summary

This phase 2 trial tests whether giving the chemotherapy drug capecitabine in a flexible, response-based way (adaptive therapy) can better control metastatic ER-positive breast cancer. About 35 adults with advanced, hormone-resistant disease will receive doses that are adjusted based on tumor scans and blood markers. The goal is to see if this personalized dosing can slow tumor growth while reducing side effects.

What this could mean

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

Active substance

capecitabine (Xeloda)

What this could lead to

If successful, this approach could offer a way to control metastatic breast cancer with fewer side effects by adjusting doses based on tumor response.

What could go wrong

This is a small, early-phase pilot study with only 35 participants. It may not show a clear benefit, and capecitabine can cause side effects like hand-foot syndrome and fatigue.

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 carcinoma breast neoplasm estrogen-receptor positive breast cancer Her2-receptor negative 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

  • Mayo Clinic in Arizona

    RECRUITING

    Scottsdale, Arizona, 85259, United States

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

    Contact