A New Vaccine for C. difficile Infection

Enhancing C. difficile vaccination in the context of TcdB-mediated immunosuppression.

NIH-funded research University of Oklahoma Hlth Sciences Ctr · NIH-11134713

This project aims to create a better vaccine to protect people from serious C. difficile infections.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionUniversity of Oklahoma Hlth Sciences Ctr NIH-funded
Lab location1 site (Oklahoma City, United States)
Project IDNIH-11134713 on NIH RePORTER

What this research studies

Researchers are working to develop a new and improved vaccine to prevent C. difficile disease, which causes severe gut illness and many deaths each year. They are focusing on a modified version of a C. difficile toxin that can trigger a protective immune response without causing harm. This modified toxin will be combined with another part of the C. difficile bacteria to create a powerful combination vaccine. The team will test these new vaccine candidates in animal models to ensure they are safe and effective at preventing infection. They will also explore how C. difficile might weaken the body's immune response, which could help make vaccines work even better.

Who could benefit from this research

Good fit: This research is relevant for individuals at high risk of C. difficile infection, such as those undergoing antibiotic treatment or with weakened immune systems.

Not a fit: Patients currently suffering from an active C. difficile infection would not directly benefit from this preventive vaccine development.

Why it matters

Potential benefit: If successful, this work could lead to a highly effective vaccine that significantly reduces the number of C. difficile infections and related deaths.

How similar studies have performed: While previous efforts have explored C. difficile vaccines, this project is developing a novel combination vaccine approach and investigating how the bacteria might evade immune responses.

Where this research is happening

Oklahoma City, 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.
Last reviewed 2026-06-13 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.