"Patients with low baseline serum levels of granzyme B had a significant worse PFS (HR: 1.96; 95%CI: 1.12 to 3.43; p=0.018, figure 1A) than patients with high levels of baseline serum granzyme B. . Likewise, low levels of granzyme B were significantly associated with worse OS (HR: 2.08; 95%CI: 1.12 to 3.87; p=0.021, figure 1B) compared with high levels of granzyme B.