Probiotics vs. Weight-Loss drug: which helps you shed pounds?

NCT ID NCT06989177

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether a probiotic (Lactobacillus paracasei) or the drug semaglutide can help overweight or obese adults lose weight and improve metabolism. Over 12 weeks, 140 participants will follow a reduced-calorie diet and lifestyle program while taking one of these or a placebo. The goal is to see which approach works best for weight loss and long-term health.

What this could mean

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

Active substance
Lactobacillus paracasei LC-19 (a probiotic) and semaglutide (a weight-loss drug)
What this could lead to
If successful, this could show that a specific probiotic helps with weight loss and metabolic health, offering a natural alternative or complement to drugs like semaglutide.
What could go wrong
This is a small, early-stage trial (140 people) with no phase designation. Results may not apply to everyone, and probiotics often have modest effects. Side effects or lack of long-term benefit are possible.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Weight Loss

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences

    RECRUITING

    Hangzhou, Zhejiang, 310024, China

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