Background: Mesenchymal stem cells (MSCs)-based therapy for perianal fistulizing Crohn's disease (pfCD) has been extensively studies in the past decade. Its efficacy and safety had been preliminarily confirmed in some phase 2 or phase 3 clinical trials. This meta-analysis is performed to evaluate the efficacy and safety of MSCs-based therapy for pfCD.
Methods: Electronic databases (Pubmed, Cochrane Library, Embase) were searched for studies that reported the efficacy and safety of MSCs. And RevMan were used to assess the efficacy and safety.
Results: After screening, 5 randomized controlled trials (RCTs) were included in this meta-analysis. RevMan 5.4 for meta-analysis showed that: [Efficacy] Patients had definite remission after MSCs treatment, with an odds ratio (OR) of 2.06 ( < .0001, 95%CI 1.46, 2.89) vs controls. [Safety] The incidence of the most frequently reported TEAEs (treatment-emergent adverse events, TEAEs), perianal abscess and proctalgia, did not significantly increase due to the use of MSCs, with an OR of 1.07 in perianal abscess ( = .87, 95%CI 0.67, 1.72) vs controls, and an OR of 1.10 in proctalgia ( = .47, 95%CI 0.63, 1.92) vs controls.
Conclusions: MSCs seem to be an effective and safe therapy for pfCD. MSCs based therapy has the potential to be used in combination with traditional therapies.
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