SER-262 Versus Placebo in Adults With Primary Clostridium Difficile Infection to Prevent Recurrence

SER-262-001 is a Phase 1b, randomized, double blind, placebo-controlled, ascending single dose clinical study with 2 treatment arms (SER-262 or placebo) in up to 8 dose cohorts. Patients who have been diagnosed with their first (primary) episode of CDI, defined as diarrhea (≥ 3 unformed stools per day for 2 consecutive days), a positive C. difficile stool test and who have responded to standard-of-care antibiotic will receive investigational drug or placebo on Day 1.