The primary objective of this study is to evaluate the safety and the Clostridioides difficile infection (CDI) recurrence rate in participants who receive a 14-day course of VE303 or matching placebo.
Other objective is to measure health-related quality of life and daily CDI symptoms in participants treated with VE303 versus placebo.

This is a prospective observational cohort study that will create a patient registry by collecting data on patients who receive REBYOTA to prevent recurrence of Clostridioides difficile infection (CDI). The registry will include data about CDI episodes, CDI related symptoms, healthcare resource utilization (i.e., hospitalizations and re-admissions) and this data will be collected up to 6-months after receiving REBYOTA™.