Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Oct 16, 2022; 10(29): 10550-10558
Published online Oct 16, 2022. doi: 10.12998/wjcc.v10.i29.10550
Vedolizumab in the treatment of immune checkpoint inhibitor-induced colitis: Two case reports
Zhe Zhang, Chang-Qing Zheng
Zhe Zhang, Chang-Qing Zheng, The Second Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
Author contributions: Zhang Z reviewed the literature and contributed to the draft of the manuscript; Zheng CQ was responsible for the revision of the manuscript for important intellectual content; all authors issued final approval for the version to be submitted.
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Corresponding author: Chang-Qing Zheng, PhD, Doctor, The Second Department of Gastroenterology, Shengjing Hospital of China Medical University, No. 39 Huaxiang Road, Tiexi District, Shenyang 110004, Liaoning Province, China.
Received: September 17, 2021
Peer-review started: September 17, 2021
First decision: December 9, 2021
Revised: December 22, 2021
Accepted: September 7, 2022
Article in press: September 7, 2022
Published online: October 16, 2022

Immune check-point inhibitors-induced colitis (ICPIs-induced colitis) is one of the immune-related side effects. Steroids and Infliximab are commonly used to treat it. The patients of our report were treated by Vedolizumab.


The two patients went to the doctor with bloody stools and were treated by Sintilimab and Camrelizumab, respectively, for their malignant tumors. They were diagnosed as ICPIs-induced colitis based on endoscopic and histologic examination. The original immunotherapy was ceased while the anti-inflammatory therapy was introduced. The patients' colitis symptoms disappeared after the treatment and no recurrence was found during the follow-up period. The unique feature about the case reports is that Vedolizumab combined with short-term corticosteroids had achieved good therapeutic effects.


For the symptoms of bloody diarrhea after the ICPIs treatment of cancer, the possibility of ICPIs-induced colitis should be considered. Vedolizumab combined with short-term corticosteroids may be appropriate for the treatment.

Keywords: Immunotherapy, Colitis, Vedolizumab, Camrelizumab, Sintilimab, Case report

Core Tip: With its good efficacy, immunotherapy is increasingly being used in treating malignant tumors and attention shall be paid to the immune-related side effects caused by this therapy. This is a report on Sintilimab and Carrelizumab induced colitis which has rarely been reported in the past. Besides, a positive effect was achieved by adopting Vedolizumab combined with short-term corticosteroids therapy, which was different from the previous treatment.