Safety and Durability of RBX2660 (Microbiota Suspension) for Recurrent Clostridium difficile Infection: Results of the PUNCH CD Study Article

Full Text via DOI: 10.1093/cid/civ938 PMID: 26565008 Web of Science: 000371715600017

Cited authors

  • Orenstein, Robert; Dubberke, Erik; Hardi, Robert; Ray, Arnab; Mullane, Kathleen; Pardi, Darrell S.; Ramesh, Mayur S.


  • Background. Managing recurrent Clostridium difficile infection (CDI) presents a significant challenge for clinicians and patients. Fecal microbiota transplantation (FMT) is a highly effective therapy for recurrent CDI, yet availability of a standardized, safe, and effective product has been lacking. Our aim in this study was to assess the safety and effectiveness of RBX2660 (microbiota suspension), a commercially prepared FMT drug manufactured using standardized processes and available in a ready-to-use format.; Methods. Patients with at least 2 recurrent CDI episodes or at least 2 severe episodes resulting in hospitalization were enrolled in a prospective, multicenter open-label study of RBX2660 administered via enema. Intensive surveillance for adverse events (AEs) was conducted daily for 7 days following treatment and then at 30 days, 60 days, 3 months, and 6 months. The primary objective was product-related AEs. A secondary objective was CDI-associated diarrhea resolution at 8 weeks.; Results. Of the 40 patients enrolled at 11 centers in the United States between 15 August 2013 and 16 December 2013, 34 received at least 1 dose of RBX2660 and 31 completed 6-month follow-up. Overall efficacy was 87.1% (16 with 1 dose and 11 with 2 doses). Of 188 reported AEs, diarrhea, flatulence, abdominal pain/cramping, and constipation were most common. The frequency and severity of AEs decreased over time. Twenty serious AEs were reported in 7 patients; none were related to RBX2660 or its administration.; Conclusions. Among patients with recurrent or severe CDI, administration of RBX2660 via enema appears to be safe and effective.


Publication date

  • 2016

Published in

International Standard Serial Number (ISSN)

  • 1058-4838

Start page

  • 596

End page

  • 602


  • 62


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