For ERBB2-mutant patients, the mPFS was 5.9 months, and Chemo+Immuno and Chemo+Antiangio both achieved longer mPFS than TKI (12.9 vs 2.9 months, HR: 0.15, 95%CI: 0.03-0.68, P=0.005; 7.1 vs 2.9 months, HR: 0.50, 95%CI: 0.29-0.88, P=0.009, respectively).