Probiotics may tame cancer Drug's gut side effects

NCT ID NCT06892093

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

Summary

This study tests whether taking probiotics can prevent severe diarrhea in women with HER2-positive breast cancer who are treated with neratinib. About 308 participants will be randomly assigned to receive either probiotics or a placebo for six weeks, alongside standard diarrhea prevention medication. The goal is to see if probiotics reduce the severity and frequency of diarrhea, helping patients stay on their cancer treatment with fewer 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

Probiotics (dietary supplement)

What this could lead to

If it works, this could offer a simple, safe way to prevent severe diarrhea in breast cancer patients taking neratinib, improving their quality of life.

What could go wrong

This is an early-stage trial with no phase designation, so results are uncertain. Probiotics may not reduce diarrhea, and individual responses can vary.

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 neoplasm diarrheal disease HER2 positive breast carcinoma

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

  • Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University

    RECRUITING

    Guangzhou, Guangdong, China

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