atezolizumab based treatmentpembrolizumab based treatment
atezolizumab plus nab-paclitaxel atezolizumab plus paclitaxel pembrolizumab plus SoC
mBC - TNBC - L1 - PDL1 positive 4        
Comparator:  vs Standard of Care (SoC);   vs placebo plus SoC; 
Risk of bias:  low;   some concerns;   high;  NA;