New gut cleaner could make colon surgery safer

NCT ID NCT07180615

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests whether a gut-cleaning routine using rifaximin works as well as the standard neomycin/metronidazole combination to prevent infections after colon surgery. About 458 adults having planned colon surgery will take one of the two treatments the day before surgery. Researchers will track infections, deaths, and hospital stay length for 30 days after surgery.

What this could mean

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

Active substance

Rifaximin (Xifaxan) or Neomycin/Metronidazole

What this could lead to

If it works, this could offer a simpler, better-tolerated gut-cleaning option before colon surgery to reduce infection risk.

What could go wrong

This is a phase 4 trial comparing two established drugs, so major surprises are unlikely. The main risk is that rifaximin may not prevent infections as effectively as the standard combination.

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.

Surgical Wound Infection

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

  • Kantonsspital Aarau

    Aarau, 5001, Switzerland

  • Kantonsspital St. Gallen

    Sankt Gallen, 9007, Switzerland

  • Luzerner Kantonsspital

    Lucerne, 6006, Switzerland

  • Stadtspital Triemli

    Zurich, 8063, Switzerland