Abstract
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 < 0.0001) but colitis grade does not correlate with steroid duration. CRP, albumin and haemoglobin do not correlate with severity. The UCEIS (p = 0.008) and Mayo (p = 0.016) scores correlate with severity/infliximab requirement. Patients with higher Nancy indices (3/4) are more likely to require infliximab (p = 0.03).
CONCLUSIONS: CTCAE assessment does not accurately reflect colitis severity and our data do not support its use in isolation, as this may negatively impact timely management. Our data support utilising endoscopic scoring for patients with >grade 1 CTCAE disease, and demonstrate the potential prognostic utility of objective histologic scoring.
| Original language | English |
|---|---|
| Pages (from-to) | 207-215 |
| Number of pages | 9 |
| Journal | British Journal of Cancer |
| Volume | 123 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jul 2020 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Aged
- Carcinoma, Non-Small-Cell Lung/complications
- Colitis/chemically induced
- Colonoscopy
- Drug-Related Side Effects and Adverse Reactions
- Female
- Humans
- Immune Checkpoint Inhibitors/administration & dosage
- Infliximab/administration & dosage
- Male
- Melanoma/complications
- Middle Aged
- Prognosis
- Severity of Illness Index
- Treatment Outcome
- Urothelium/drug effects
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