Comparison of Long-Term Outcomes of Infliximab versus Adalimumab Treatment in Biologic-Naïve Patients with Ulcerative Colitis

Yong Il Lee, Yehyun Park, Soo Jung Park, Tae Il Kim, Won Ho Kim, Jae Hee Cheon

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9 Citations (Scopus)


Background/Aims: The tumor necrosis factor-α inhibitors infliximab and adalimumab are standard treatments for moderate to severe ulcerative colitis (UC). However, there has been no headto-head comparison of treatment efficacy and outcomes between the two agents. The aim of this study was to compare the efficacy and long-Term outcomes of infliximab versus adalimumab treatment in biologic-naïve patients with UC. Methods: We retrospectively analyzed the records of 113 biologic-naïve patients with UC who were treated between September 2012 and December 2017 (the infliximab group [n=83] and the adalimumab group [n=30]). We compared remission and response rates between these groups at 8 and 52 weeks. We used Kaplan-Meier curves to compare long-Term outcomes, and logistic regression analysis and Cox-proportional hazard regression models to assess factors affecting outcomes. Results: The median follow-up duration was 25.8 months. Baseline clinical characteristics were similar between groups. There were no significant differences between the two groups in the rate of clinical remission or clinical response at 8 or 52 weeks. Multivariate analyses also showed that long-Term outcomes were not significantly different (adjusted hazard ratio [HR], 1.45; 95% confidence interval [CI], 0.81 to 2.56; p=0.208). An elevated C-reactive protein level (greater than 5 mg/L) was a significant predictive factor for poor outcomes (adjusted HR, 2.25; 95% CI, 1.37 to 3.70; p=0.001). During the follow-up period, the rates of adverse event were not significantly different between the two groups (p=0.441). Conclusions: In our study, infliximab and adalimumab had similar treatment efficacy and longterm outcomes in biologic-naïve patients with moderate to severe UC. (Gut Liver 2021;15:232-242).

Original languageEnglish
Pages (from-to)232-242
Number of pages11
JournalGut and liver
Issue number2
Publication statusPublished - 2021

Bibliographical note

Publisher Copyright:
© 2021 Editorial Office of Gut and Liver. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Hepatology
  • Gastroenterology


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