did not reach statistical significancep = 0.3671
By day 18 (injection 9), there was a large difference in average percentage change, with the anti-PD1 group exhibiting a 24% ± 21% increase from initial tumor size, and IgG-treated tumors showing an increase of 126% ± 37% from initial tumor size, though this difference did not reach statistical significance ( p = 0.3671, Bonferroni-corrected).