A Randomized, Double-Blinded, Active-Controlled Study of CB-183,315 in Patients with Clostridium difficile Associated Diarrhea.

608 patients with Clostridium Difficile Associated Diarrhea (CDAD) will participate in this study and receive either oral vancomycin or CB-183,315 in a blinded fashion. Treatment will last for 10 days and participants will be followed up for at least 40 days and a maximum of 100 days.

The purpose of this study is to evaluate how well CB-183,315 treats CDAD compared to vancomycin.

Eligibility

To be included in this study, participants must: •Sign a consent form; •Be older 18 or older and 90 or younger; •Have diarrhea, at least 3 times during one day, or 200 mL or liquid stool if using a rectal device; •Test positive for Clostridium difficile; •If female, must not be pregnant or nursing and take appropriate measures to not get pregnant during the study. Participants will not be allowed into the study if they: •Have toxic megacolon and/or known small bowel ileus; •Have received treatment with intravenous immune globulin (IVIG)within the past 30 days; •Have received treatment with a fecal transplant within 7 days, and/or if the doctor anticipates to give the participant a fecal transplant during the study; •Have received a certain amount of antibacterial therapy specific for current CDAD, unless it is not working; •Have received an investigational vaccine against C. difficile; •Have received an investigational product containing monoclonal antibodies against toxin A or B within 180 days; •Had more than 2 episodes of CDAD within 90 days; •Had major gastrointestinal (GI) surgery (i.e. significant bowel resection) within 3 months(this does not include appendectomy or cholecystectomy); •Have history of prior inflammatory bowel disease: ulcerative colitis, Crohn's disease, or microscopic colitis; •Are unable to discontinue loperamide, diphenoxylate/atropine, or cholestyramine during the duration of the study; •Are unable to discontinue opiate treatment unless on a stable dose; •Has known positive stool cultures for other enteropathogens including but not limited to Salmonella, Shigella, and Campylobacter; •Had stool studies positive for pathogenic ova and/or parasites; •Have an intolerance or hypersensitivity to daptomycin and/or vancomycin; •Have life-threatening illness at the time of enrollment; •Have poor concurrent medical risks that in the opinion of the Investigator the participant should not enroll; •Have received an investigational drug or participated in any experimental procedure within 1 month; •Have HIV, a CD4 < 200 cells/mm3 within 6 months of start of study therapy; •Anticipate that certain antibacterial therapy for a non-CDAD infection will be required for > 7 days; •Are unable to discontinue Saccharomyces or similar probiotic; •Are on a concurrent intensive induction chemotherapy, radiotherapy, or biologic treatment for active malignancy; •Are unable to comply with the protocol requirements; •Have any condition that, in the opinion of the Investigator, might interfere; •Are not expected to live for less than 8 weeks.

Investigator

Alyssa Shon, MD

Contact Information

Name: Alyssa Shon, MD
Phone: 898-4119
Email: alyssash@buffalo.edu