Figure 3
Difference in objective response rate between GCN + and GCN- patients, stratified by  KRAS  status. In patients with wild-type KRAS , the total events and patients were 73 and 124, respectively, for GCN + group, and were 61 and 230, respectively, for GCN- group. Heterogeneity test: P =0.02, I 2 = 54%. In patients with mutant KRAS, the total events and patients were 7 and 44, respectively, for GCN + group, and were 2 and 97, respectively, for GCN- group. Heterogeneity test: P =0.005, I2 = 70%.