Immune checkpoint inhibitor-related colitis assessment and prognosis: can IBD scoring point the way?

Cheung VTF., Gupta T., Olsson-Brown A., Subramanian S., Sasson SC., Heseltine J., Fryer E., Collantes E., Sacco JJ., Pirmohamed M., Simmons A., Klenerman P., Tuthill M., Protheroe AS., Chitnis M., Fairfax BP., Payne MJ., Middleton MR., Brain O.

BACKGROUND: Immune checkpoint inhibitors (ICI) improve survival but cause immune-related adverse events (irAE). We sought to determine if CTCAE classification, IBD biomarkers/endoscopic/histological scores correlate with irAE colitis outcomes. METHODS: A dual-centre retrospective study was performed on patients receiving ICI for melanoma, NSCLC or urothelial cancer from 2012 to 2018. Demographics, clinical data, endoscopies (reanalysed using Mayo/Ulcerative Colitis Endoscopic Index of Severity (UCEIS) scores), histology (scored with Nancy Index) and treatment outcomes were analysed. RESULTS: In all, 1074 patients were analysed. Twelve percent (134) developed irAE colitis. Median patient age was 66, 59% were male. CTCAE diarrhoea grade does not correlate with steroid/ infliximab use. G3/4 colitis patients are more likely to need infliximab (p grade 1 CTCAE disease, and demonstrate the potential prognostic utility of objective histologic scoring.

DOI

10.1038/s41416-020-0882-y

Type

Journal article

Journal

Br J Cancer

Publication Date

07/2020

Volume

123

Pages

207 - 215

Keywords

Aged, Carcinoma, Non-Small-Cell Lung, Colitis, Colonoscopy, Drug-Related Side Effects and Adverse Reactions, Female, Humans, Immune Checkpoint Inhibitors, Infliximab, Male, Melanoma, Middle Aged, Prognosis, Severity of Illness Index, Treatment Outcome, Urothelium

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