Vedolizumab does not increase risk of C. diff infection in UC

Recurrence worries

Recurrent CDI is an issue in patients with IBD, many of whom are considered at high risk for initial and recurrent infection. During a session on CDI and recurrence at the AIBD meeting, Sahil Khanna, MBBS, of the Mayo Clinic, explained that there are three different treatment guidelines to manage initial CDI in patients with IBD.

Predominantly, these guidelines also suggest human monoclonal antibody bezlotoxumab could be used for prevention of CDI recurrence in patients at high risk of recurrence, including those who had experienced severe CDI. “One can argue that anyone with IBD who has C. difficile can be a severe CDI patient because of the bad outcomes we can see,” he explained.

“We do know that IBD is a state of chronic microbial dysbiosis compared to our patients without IBD who get C. difficile because of antibiotic exposure, and that’s why these patients have a high risk of recurrence, compared with non-IBD patients,” said Dr. Khanna. He noted that the bezlotoxumab studies showed numerically lower CDI recurrence rates compared with other treatments in patients with IBD who were initially treated with the monoclonal antibody, but this difference was not statistically significant. “But again, this agent has been shown to be safe in this patient population.”

Dr. Dalal reported having no relevant conflicts of interest. Dr. Colombel has consulted for Takeda, which markets Entyvio for UC. Dr. Khanna has research grants from Rebiotix, as well as consulting fees from Shire Plc, Premier, Facile Therapeutics, and ProbioTech.

Help your patients understand their C. difficile diagnosis by sharing patient education from the AGA GI Patient Center: www.gastro.org/Cdiff .