How sugars in the diet help C. difficile grow in the gut

The role of sugar transport in C. difficile colonization and disease

['FUNDING_OTHER'] · UNIVERSITY OF LOUISVILLE · NIH-11291291

This project looks at how sugar in modern diets helps C. difficile grow and cause illness in adults to find ideas for prevention and treatment.

Quick facts

Phase['FUNDING_OTHER']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF LOUISVILLE (nih funded)
Locations1 site (LOUISVILLE, UNITED STATES)
Trial IDNIH-11291291 on ClinicalTrials.gov

What this research studies

From a patient's point of view, researchers are studying how C. difficile uses sugars from our food to live and make toxins in the gut. They will examine specific bacterial sugar-transport genes to see which sugars the bacteria prefer and whether those genes change how harmful the bacteria are. The work will include lab tests of bacterial strains, experiments that model gut communities and disease, and studies of how dietary sugar affects asymptomatic carriage. The aim is to find ways drugs or diet changes could block colonization and reduce infections.

Who could benefit from this research

Good fit: Adults (21+) who have had C. difficile infection, are at high risk for CDI, or are known asymptomatic carriers would be the most relevant people for this research.

Not a fit: Children, people without C. difficile exposure, or patients whose infections are driven by factors unrelated to bacterial sugar metabolism may not benefit directly.

Why it matters

Potential benefit: If successful, this work could point to new drug targets or diet-based measures to prevent or lessen C. difficile infections.

How similar studies have performed: Previous research has linked diet and gut bacteria to C. difficile risk, but targeting specific bacterial sugar transport systems is a newer approach with limited clinical testing to date.

Where this research is happening

LOUISVILLE, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.