• Yu Kyung Jun, Joo Young Park, Seong-Joon Koh, Hyunsun Park, Hyoun Woo Kang, Jong Pil Im, and Joo Sung Kim.
• Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
• Medicine (Baltimore). 2022 Jul 8; 101 (27): e29872e29872.

BackgroundRecent case reports have suggested that anti-tumor necrosis factor (TNF) agents are associated with an increased risk of developing psoriasis in patients with inflammatory bowel disease (IBD).AimsThis meta-analysis of published studies aimed to evaluate the association between anti-TNF treatment and psoriasis in patients with IBD.MethodsAn electronic search for original articles published before April 7, 2022, was performed using PubMed, EMBASE, and the Cochrane Library. Independent reviewers conducted the article screening and data extraction. Psoriasis development between anti-TNF-treated and anti-TNF-naïve patients was compared. Patients with ulcerative colitis and Crohn disease were compared with determine the differences in anti-TNF-induced psoriasis. Also, psoriasis development was compared according to the types of anti-TNF agents. Random-effects model meta-analyses, network meta-analysis, funnel plot asymmetry, Begg rank correlation test, and Egger regression test were performed to generate summary estimates and explore the possibility of publication bias.ResultsWe analyzed a total of 10,778 articles searched and 14 articles were selected to analyze. There was no significant difference in psoriasis development between anti-TNF-treated and anti-TNF-naïve patients (relative risk = 1.14; 95% confidence interval = 0.77-1.68). No differences were found for psoriasis development between anti-TNF-treated ulcerative colitis and Crohn disease patients (relative risk = 1.30; 95% confidence interval = 0.87-1.95). No significant difference was reported with respect to psoriasis development according to the types of anti-TNF agents. We found no definitive publication bias in our analyses.ConclusionsAnti-TNF treatment did not contribute to the psoriasis development in patients with IBD. Based on our study, anti-TNF agents may be used for IBD treatment without concern for psoriasis development.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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