afatinib based treatmentneratinib based treatmentpertuzumab based treatmenttrastuzumab based treatmenttucatinib based treatmentlapatinib based treatment
afatinib plus vinorelbine neratinib neratinib plus capecitabine pertuzumab plus trastuzumab pertuzumab plus trastuzumab plus docetaxel docetaxel plus carboplatin with trastuzumab followed by trastuzumab doxorubicin plus cyclophosphamide followed by docetaxel plus trastuzumab trastuzumab plus endocrine therapy trastuzumab plus epirubicin and cyclophosphamide followed by docetaxel tucatinib plus trastuzumab plus capecitabine lapatinib lapatinib plus capecitabine lapatinib plus fulvestrant lapatinib plus letrozole lapatinib plus trastuzumab
Comparator:  vs doxorubicin plus cyclophosphamide followed by docetaxel;   vs docetaxel plus carboplatin with trastuzumab followed by trastuzumab;   vs placebo;   vs trastuzumab;   vs lapatinib plus epirubicin and cyclophosphamide followed by docetaxel;   vs trastuzumab plus docetaxel;   vs trastuzumab plus chemotherapy;   vs trastuzumab plus vinorelbine;   vs trastuzumab plus capecitabine;   vs lapatinib;   vs lapatinib plus capecitabine;   vs fulvestrant;   vs letrozole; 
Risk of bias:  low;   some concerns;   high;  NA;