A total of 32 trials involving 958 patients were included. The ORRs of HER2-TKIs targeted therapy, humanised monoclonal antibody, trastuzumab-based treatment, and antibody-drug conjugate (ADC) (T-DM1) were 22% (95% CI 11-31), 23% (95% CI 20-65), 26% (95% CI 14-39), and 16% (95% CI -6-37), while that of ADC (DS-8201) was 60% (95% CI 35-85)....In particular, ADC (DS-8201), pyrotinib, and poziotinib demonstrated promising anti-tumour activity in HER2-positive NSCLC.