Impact of tumor mutational burden on checkpoint inhibitor drug eligibility and outcomes across racial groups Journal Article


Authors: Hsiehchen, D.; Espinoza, M.; Valero, C.; Ahn, C.; Morris, L. G. T.
Article Title: Impact of tumor mutational burden on checkpoint inhibitor drug eligibility and outcomes across racial groups
Abstract: The FDA approval of immune checkpoint inhibitors for cancers with tumor mutation burden (TMB) of at least 10 mut/Mb is postulated to reduce healthcare disparities by broadly expanding treatment eligibility. In a cohort of 39,400 patients with available genomic and race data, black and Asian patients were less likely to have TMB-high cancers in multiple types of malignancies based on the currently approved cut-off. Decreasing TMB thresholds preferentially increased the eligibility of minority patients for immune checkpoint inhibitors while retaining predictive value of treatment benefit in a cohort of immune checkpoint inhibitor treated patients. This study highlights differing distributions of TMB-high cancers between racial groups and provides guidance in developing more rational eligibility criteria for immune checkpoint inhibitors.
Keywords: immunotherapy; blockade; tumor biomarkers; pembrolizumab; fda approval
Journal Title: Journal for ImmunoTherapy of Cancer
Volume: 9
Issue: 11
ISSN: 2051-1426
Publisher: Biomed Central Ltd  
Date Published: 2021-11-01
Start Page: e003683
Language: English
ACCESSION: WOS:000720981900006
DOI: 10.1136/jitc-2021-003683
PROVIDER: wos
PMCID: PMC8603286
PUBMED: 34795008
Notes: Article -- Source: Wos
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  1. Luc Morris
    278 Morris