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Biologic Therapies for the Treatment of Post-ileal Pouch Anal Anastomosis Surgery Chronic Inflammatory Disorders: Systematic Review and Meta-analysis.
Journal of the Canadian Association of Gastroenterology 2022 December
BACKGROUND: Chronic inflammatory disorders after ileal pouch-anal anastomosis (IPAA) surgery are common. These include chronic pouchitis (CP), Crohn's disease (CD) of the pouch, prepouch ileitis (PI) and rectal cuff inflammation (cuffitis). The aim of this study was to evaluate the efficacy of biologic therapies in treating these disorders.
METHOD: Systematic review of all published studies from inception to August 1, 2021 was performed to investigate the efficacy of biologic therapies for post-IPAA chronic inflammatory disorders. The primary outcome was the efficacy of biologic therapies in achieving complete clinical response in patients with IPAA.
RESULTS: A total of 26 studies were identified including 741 patients. Using a random-effect model, the efficacy of infliximab in achieving complete clinical response in patients with CP was 51% (95% CI, 36 to 66), whereas the efficacy of adalimumab was 47% (95% CI, 31 to 64). The efficacies of ustekinumab and vedolizumab were 41% (95% CI, 06 to 88) and 63% (95% CI, 35 to 84), respectively. In patients with CD/PI, the efficacy of infliximab in achieving complete clinical response was 52% (95% CI, 33 to 71), whereas the efficacy of adalimumab was 51% (95% CI, 40 to 61). The efficacies of ustekinumab and vedolizumab were 42% (95% CI, 06 to 90) and 67% (95% CI, 38 to 87), respectively. Only one study involved patients with cuffitis.
CONCLUSION: Ustekinumab, infliximab, vedolizumab and adalimumab are effective in achieving complete clinical response in post-IPAA surgery chronic inflammatory disorders. More studies are needed to determine the efficacy of biologics in cuffitis.
METHOD: Systematic review of all published studies from inception to August 1, 2021 was performed to investigate the efficacy of biologic therapies for post-IPAA chronic inflammatory disorders. The primary outcome was the efficacy of biologic therapies in achieving complete clinical response in patients with IPAA.
RESULTS: A total of 26 studies were identified including 741 patients. Using a random-effect model, the efficacy of infliximab in achieving complete clinical response in patients with CP was 51% (95% CI, 36 to 66), whereas the efficacy of adalimumab was 47% (95% CI, 31 to 64). The efficacies of ustekinumab and vedolizumab were 41% (95% CI, 06 to 88) and 63% (95% CI, 35 to 84), respectively. In patients with CD/PI, the efficacy of infliximab in achieving complete clinical response was 52% (95% CI, 33 to 71), whereas the efficacy of adalimumab was 51% (95% CI, 40 to 61). The efficacies of ustekinumab and vedolizumab were 42% (95% CI, 06 to 90) and 67% (95% CI, 38 to 87), respectively. Only one study involved patients with cuffitis.
CONCLUSION: Ustekinumab, infliximab, vedolizumab and adalimumab are effective in achieving complete clinical response in post-IPAA surgery chronic inflammatory disorders. More studies are needed to determine the efficacy of biologics in cuffitis.
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