['clostridium difficile infection']
['smt19969', 'vancomycin']

        Inclusion Criteria:

          -  Informed consent

          -  Clinical diagnosis of CDAD plus laboratory diagnostic test

          -  No more than 24 hrs antimicrobial treatment for current CDAD episode

          -  No more than 3 episodes of CDAD in prior 12 months

          -  No previous episode of CDAD within 30 days of study enrollment

          -  Female subjects of childbearing potential must use adequate contraception

        Exclusion Criteria:

          -  Life-threatening or fulminant colitis

          -  Concurrent use of antibiotics or any other treatments for CDAD

          -  History of inflammatory bowel disease (ulcerative colitis, Crohn's disease)

          -  Participation in other Clinical research studies within one month of screening
      