New drug trial aims to calm IBS-Related diarrhea and pain

NCT ID NCT07574320

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tests whether ramosetron, a drug that affects gut serotonin, can improve symptoms in people with diarrhea-predominant IBS. Seventy-six adults aged 18–65 will receive either ramosetron or a placebo daily for four weeks, along with a low-FODMAP diet and lifestyle advice. Researchers will measure changes in IBS symptom severity scores at 4 and 8 weeks.

What this could mean

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

Active substance
ramosetron
What this could lead to
If it works, this could offer a new option to reduce abdominal pain, bloating, and diarrhea in people with IBS-D.
What could go wrong
This is a small, early-stage trial with only 76 participants. The drug may not work better than placebo, and side effects are possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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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.

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