SPDL1 and gastric cancer: A prospective study (49) from Korea, which included 68 patients with gastric cancer, demonstrated that a high level of sPD-L1 level at diagnosis was correlated with a poorer OS (OS, 9.5 vs. 18.3 months, p=0.057) and PFS (8.9 vs. 6.0 months, p=0.040).