Extended Data Fig. 6 |. Extended analysis of TCR diversity from pretreatment peripheral blood expression profiles.

a–d, Association between baseline bulk TCR diversity and the highest irAE grade observed for each patient in bulk cohorts 1 and 2 (Supplementary Tables 7 and 9), shown for two diversity measures (a and c, Shannon entropy; b and d, Gini-Simpson index) and stratified by therapy type. In a and b, patients treated with combination therapy are stratified by future irAE status: no severe irAE (n = 10) versus severe irAE (n = 14 patients) (left) and irAE grade (right): 0/1 (n = 3), 2 (n = 7), 3 (n = 12), and 4 (n = 2). In c and d, patients treated with PD1 monotherapy are stratified by future irAE status: no severe irAE (n = 26) versus severe irAE (n = 3 patients) (left) and irAE grade (right): 0/1 (n = 19), 2 (n = 7), 3 (n = 2), and 4 (n = 1). Two-group comparisons were assessed by a two-sided, unpaired Wilcoxon rank sum test. n.s., not significant (P > 0.05). Linear regression was applied to evaluate the median value of each measure grouped by irAE grade (insets). The significance of linear concordance was determined by a two-sided t test. Grades 0 and 1 reflect no toxicity and asymptomatic toxicity, respectively, and were combined. In all panels, the box center lines, bounds of the box, and whiskers denote medians, 1^st and 3^rd quartiles, and minimum and maximum values within 1.5 × IQR (interquartile range) of the box limits, respectively.