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Background:Fecal microbiota transplantation (FMT) is an effective therapy in recurrent Clostridium difficile infection (rCDI). It is only recommended for this indication by European and American guidelines. Other indications of FMT are being studied, such as inflammatory bowel disease (IBD), and they have shown promising results.Objectives:To identify and review published FMT-related economic evaluations (EEs) to assess their quality and the economic impact of FMT in the treatment of these diseases.Data sources:The systematic literature research was conducted in both PubMed and Cochrane to identify EEs published before July 1, 2019.Study eligibility criteria:Articles were included if they concerned FMT (whatever the disease and its line of treatment), if they reported full or partial EEs, and if they were written in English. Articles were excluded if they did not concern FMT; if they did not report an EE; or if they were a systematic review, editorial, comment, letter to the editor, practice point, or poster.Methods:A measurement tool, AMSTAR, was used to optimize the quality of this systematic review. Based on the CHEERS checklist, data were identified and extracted from articles. The quality of each EE was assessed using the Drummond checklist.Results:Overall, 9 EEs were included: all EEs were full evaluations and 8 were cost-utility analyses (CUAs). All EEs had a Drummond score ≥ 7, which indicated high quality. All CUAs related to rCDI and IBD concluded that FMT was cost-effective compared with other reference treatments, at a threshold ≤$50,000/QALY. One EE about initial CDI showed that FMT was dominated by metronidazole.Conclusions:Despite a limited number of EEs, FMT seems to be a promising and cost-effective treatment for rCDI. More EE studies on other diseases like IBD are necessary to address FMT efficiency for new indications. Therefore, our systematic review provides a framework for healthcare decision making.

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