PMID- 31723355 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220411 IS - 1756-283X (Print) IS - 1756-2848 (Electronic) IS - 1756-283X (Linking) VI - 12 DP - 2019 TI - Immune checkpoint inhibitor-associated gastrointestinal and hepatic adverse events and their management. PG - 1756284819884196 LID - 10.1177/1756284819884196 [doi] LID - 1756284819884196 AB - BACKGROUND: Drug-induced colitis is a known complication of therapies that alter the immune balance, damage the intestinal barrier or disturb intestinal microbiota. Immune checkpoint inhibitors (ICI) directed against cancer cells may result in activated T lymphocyte-induced immune-related adverse events (AEs), including immune-related colitis and hepatitis. The aim of this review article is to summarize the incidence of gastrointestinal (GI) and hepatic AEs related to ICI therapy. We have also looked at the pathogenesis of immune-mediated AEs and propose management strategies based on current available evidence. METHODS: A literature search using PubMed and Medline databases was undertaken using relevant search terms pertaining to names of individual drugs, mechanism of action, related AEs and their management. RESULTS: ICI-related GI AEs are common, and colitis appears to be the most common side effect, with some studies reporting incidence as high as 30%. The incidence of both all-grade colitis and hepatitis were highest with combination therapy with anti-CTLA-4/PD-1; severity of colitis was dose-dependent (anti-CTLA-4). Early intervention is associated with better outcomes. CONCLUSION: ICI-related GI and hepatic AEs are common and clinicians need to be aware. Patients with GI AEs benefit from early diagnosis using endoscopy and computed tomography. Early intervention with oral steroids is effective in the majority of patients, and in steroid-refractory colitis infliximab and vedolizumab have been reported to be useful; mycophenolate has been used for steroid-refractory hepatitis. CI - (c) The Author(s), 2019. FAU - Shivaji, Uday N AU - Shivaji UN AUID- ORCID: 0000-0002-6800-584X AD - National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, UK. FAU - Jeffery, Louisa AU - Jeffery L AD - National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, UK. FAU - Gui, Xianyong AU - Gui X AD - Department of Pathology, University of Washington, Seattle, WA, USA. FAU - Smith, Samuel C L AU - Smith SCL AD - Institute of Immunology and Immunotherapy, University of Birmingham, UK. FAU - Ahmad, Omer F AU - Ahmad OF AD - Department of Gastroenterology, University College London Hospital, London, UK. FAU - Akbar, Ayesha AU - Akbar A AD - St Mark's Hospital, IBD Unit, London, UK. FAU - Ghosh, Subrata AU - Ghosh S AD - National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, UK. FAU - Iacucci, Marietta AU - Iacucci M AD - National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, UK. LA - eng PT - Journal Article PT - Review DEP - 20191105 PL - England TA - Therap Adv Gastroenterol JT - Therapeutic advances in gastroenterology JID - 101478893 PMC - PMC6831976 OTO - NOTNLM OT - anti-CTLA-4 OT - anti-PD1 OT - anti-PDL1 OT - immune checkpoint inhibitors OT - immune-related colitis OT - immune-related hepatitis OT - management COIS- Conflict of interest statement: The authors declare that there is no conflict of interest. EDAT- 2019/11/15 06:00 MHDA- 2019/11/15 06:01 PMCR- 2019/11/05 CRDT- 2019/11/15 06:00 PHST- 2019/06/10 00:00 [received] PHST- 2019/09/18 00:00 [accepted] PHST- 2019/11/15 06:00 [entrez] PHST- 2019/11/15 06:00 [pubmed] PHST- 2019/11/15 06:01 [medline] PHST- 2019/11/05 00:00 [pmc-release] AID - 10.1177_1756284819884196 [pii] AID - 10.1177/1756284819884196 [doi] PST - epublish SO - Therap Adv Gastroenterol. 2019 Nov 5;12:1756284819884196. doi: 10.1177/1756284819884196. eCollection 2019.