You may be eligible to participate in PRISM 3 if you meet these criteria*:

  • Are 18 years of age or older
  • Are experiencing recurrent Clostridium difficile infection (C. diff or CDI) 
  • Have responded to CDI antibiotic therapy for the most recent CDI episode
  • Do not have a history or diagnosis of inflammatory bowel disease (IBD) or irritable bowel syndrome (IBS)

*Other criteria will apply.

If you meet all the above criteria, then you may be eligible to participate in the PRISM 3 trial. To learn more about the trial, please use the below tool to find a site near you. If you cannot find a nearby hospital, you can contact