Probiotics may tame Chemotherapy's worst side effects

NCT ID NCT06039644

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

Summary

This study tests whether taking a daily probiotic supplement for 6 months can reduce common chemotherapy side effects like nausea, vomiting, diarrhea, and nerve pain in breast cancer patients. One hundred women with stage I-III breast cancer will receive either a three-strain probiotic or a placebo. The goal is to see if probiotics improve quality of life and help patients complete their full course of chemotherapy.

What this could mean

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

Active substance
Probiotic (three-strain lactobacillus supplement)
What this could lead to
If it works, this could offer a simple, natural way to reduce nausea, diarrhea, and other chemo side effects, helping patients complete their treatment more comfortably.
What could go wrong
This is an early-stage trial with only 100 people, so results may not apply to everyone. Probiotics might not help, and some people could experience mild digestive upset.

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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

Study contacts

  • Contact

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

  • Contact

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

Locations

  • Mackay Memorial Hospital

    RECRUITING

    Taipei, Taiwan

    Contact

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