Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment

Abstract Background and Aim Pouchitis is a common complication after restorative ileal pouch–anal anastomosis following proctocolectomy for ulcerative colitis. Antibiotic‐dependent or antibiotic‐refractory chronic pouchitis (CP), which is a common cause of pouch failure affecting 15–20% of patients,...

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Main Authors: Emi Khoo, Andrew Lee, Teresa Neeman, Yoon‐Kyo An, Jakob Begun
Format: Article
Language:English
Published: Wiley 2023-12-01
Series:JGH Open
Subjects:
Online Access:https://doi.org/10.1002/jgh3.13000
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author Emi Khoo
Andrew Lee
Teresa Neeman
Yoon‐Kyo An
Jakob Begun
author_facet Emi Khoo
Andrew Lee
Teresa Neeman
Yoon‐Kyo An
Jakob Begun
author_sort Emi Khoo
collection DOAJ
description Abstract Background and Aim Pouchitis is a common complication after restorative ileal pouch–anal anastomosis following proctocolectomy for ulcerative colitis. Antibiotic‐dependent or antibiotic‐refractory chronic pouchitis (CP), which is a common cause of pouch failure affecting 15–20% of patients, is challenging to treat. The efficacy of second‐line immunomodulator and biologic therapy remains poorly defined. We present a pooled analysis of real‐world efficacy data from peer‐reviewed full‐text manuscripts, focusing on immunomodulator and biologic therapies in CP. Methods Embase and PubMed databases were searched for full‐text articles describing the treatment of CP. We performed a systematic review and pooled analysis of published studies to assess the efficacy of immunomodulators, including thiopurines and methotrexate, and biologics including antitumor necrosis factor, anti‐integrin, and interleukin‐12/23 antagonists. Clinical and endoscopic response and remission rates were combined for pooled analyses. Rates of treatment discontinuation and safety were also assessed. Results Pooled analysis comprised 20 full‐text articles (485 patients). Overall clinical response rate was 46% (95% CI: 35–59%) and clinical remission rate was 35% (95% CI: 21–52%). Overall endoscopic response and remission rates were 41% (95% CI: 18–68%) and 15% (95% CI: 5–39%), respectively. Individual agents' safety profile was reassuring, with vedolizumab being the most favorable. Conclusion The real‐world efficacy data of immunomodulators in the treatment of CP is insufficient. Vedolizumab and ustekinumab appeared effective and safe for CP, whereas anti‐TNFs showed higher rates of adverse events. The high heterogeneity within the studies is attributed to the real‐world study design, obfuscating drug efficacy comparisons across the studies. Further studies are required to define the comparative effectiveness of available treatments of CP.
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spelling doaj.art-fcdab684d14244e8ae2ed1c958f9cc672023-12-30T16:05:16ZengWileyJGH Open2397-90702023-12-0171289990710.1002/jgh3.13000Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatmentEmi Khoo0Andrew Lee1Teresa Neeman2Yoon‐Kyo An3Jakob Begun4Mater Hospital Brisbane Brisbane Queensland AustraliaMater Hospital Brisbane Brisbane Queensland AustraliaBiology Data Science Institute Australian National University Canberra Australian Capital Territory AustraliaMater Hospital Brisbane Brisbane Queensland AustraliaMater Hospital Brisbane Brisbane Queensland AustraliaAbstract Background and Aim Pouchitis is a common complication after restorative ileal pouch–anal anastomosis following proctocolectomy for ulcerative colitis. Antibiotic‐dependent or antibiotic‐refractory chronic pouchitis (CP), which is a common cause of pouch failure affecting 15–20% of patients, is challenging to treat. The efficacy of second‐line immunomodulator and biologic therapy remains poorly defined. We present a pooled analysis of real‐world efficacy data from peer‐reviewed full‐text manuscripts, focusing on immunomodulator and biologic therapies in CP. Methods Embase and PubMed databases were searched for full‐text articles describing the treatment of CP. We performed a systematic review and pooled analysis of published studies to assess the efficacy of immunomodulators, including thiopurines and methotrexate, and biologics including antitumor necrosis factor, anti‐integrin, and interleukin‐12/23 antagonists. Clinical and endoscopic response and remission rates were combined for pooled analyses. Rates of treatment discontinuation and safety were also assessed. Results Pooled analysis comprised 20 full‐text articles (485 patients). Overall clinical response rate was 46% (95% CI: 35–59%) and clinical remission rate was 35% (95% CI: 21–52%). Overall endoscopic response and remission rates were 41% (95% CI: 18–68%) and 15% (95% CI: 5–39%), respectively. Individual agents' safety profile was reassuring, with vedolizumab being the most favorable. Conclusion The real‐world efficacy data of immunomodulators in the treatment of CP is insufficient. Vedolizumab and ustekinumab appeared effective and safe for CP, whereas anti‐TNFs showed higher rates of adverse events. The high heterogeneity within the studies is attributed to the real‐world study design, obfuscating drug efficacy comparisons across the studies. Further studies are required to define the comparative effectiveness of available treatments of CP.https://doi.org/10.1002/jgh3.13000biologic therapieschronic pouchitisimmunomodulator
spellingShingle Emi Khoo
Andrew Lee
Teresa Neeman
Yoon‐Kyo An
Jakob Begun
Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment
JGH Open
biologic therapies
chronic pouchitis
immunomodulator
title Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment
title_full Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment
title_fullStr Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment
title_full_unstemmed Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment
title_short Comprehensive systematic review and pooled analysis of real‐world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment
title_sort comprehensive systematic review and pooled analysis of real world studies evaluating immunomodulator and biologic therapies for chronic pouchitis treatment
topic biologic therapies
chronic pouchitis
immunomodulator
url https://doi.org/10.1002/jgh3.13000
work_keys_str_mv AT emikhoo comprehensivesystematicreviewandpooledanalysisofrealworldstudiesevaluatingimmunomodulatorandbiologictherapiesforchronicpouchitistreatment
AT andrewlee comprehensivesystematicreviewandpooledanalysisofrealworldstudiesevaluatingimmunomodulatorandbiologictherapiesforchronicpouchitistreatment
AT teresaneeman comprehensivesystematicreviewandpooledanalysisofrealworldstudiesevaluatingimmunomodulatorandbiologictherapiesforchronicpouchitistreatment
AT yoonkyoan comprehensivesystematicreviewandpooledanalysisofrealworldstudiesevaluatingimmunomodulatorandbiologictherapiesforchronicpouchitistreatment
AT jakobbegun comprehensivesystematicreviewandpooledanalysisofrealworldstudiesevaluatingimmunomodulatorandbiologictherapiesforchronicpouchitistreatment