Could a 14-Hour fast ease breast cancer treatment side effects?

NCT ID NCT06106477

First seen Aug 05, 2026 · Last updated Aug 06, 2026 · Updated 1 time

Summary

This trial tests whether a six-month intermittent fasting plan—fasting for about 14 hours each night and eating within a 10-hour daytime window—is something women with early-stage, hormone-positive breast cancer can stick to while on hormone therapy. The goal is to see if this eating pattern can improve health-related quality of life and reduce inflammation. The study involves 20 women with stage I-III HR+/HER2- breast cancer and focuses on how feasible and acceptable the fasting schedule is.

What this could mean

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

Active substance
Intermittent fasting (a daily eating pattern with a 14-hour overnight fast and a 10-hour eating window)
What this could lead to
If this approach proves feasible, it could offer a simple, drug-free way to ease side effects and improve well-being for women on hormone therapy for early breast cancer.
What could go wrong
This is a small feasibility study, not a proof of effectiveness. Results may not apply to all patients, and sticking to the fasting schedule for six months may be challenging for some.

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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

  • Froedtert Hospital & the Medical College of Wisconsin

    RECRUITING

    Milwaukee, Wisconsin, 53226, United States

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