FDA-approved anti-PD-L1 drugs and CDx for NSCLC treatment

DrugsAnti-PD-L1 antibodyStratifiation (biomarker scoring)Fraction of biomarker positiveClinical trial
Pembrorizumab22C3-pharmDx (Dako)TPS < 1%: PD-L1 negative
1% ≤ TPS < 50%: PD-L1 positive
TPS ≥ 50%: PD-L1 positive
1% ≤ TPS < 50%: 37.6%
TPS ≥ 50%: 23.2%
KEYNOTE-001 [29]
Nivolumab28-8-pharmDx (Dako)Expression < 1%: PD-L1 negative
Expression ≥ 1%: PD-L1 positive
Expression ≥ 1%: 45.6%CheckMate 227 [30]
AtezolizumabSP142 (VENTANA)TC, IC < 1%: PD-L1 negative
TC or IC ≥ 1%: PD-L1 positive
TC or IC ≥ 1%: 54.9%OAK [31]

TPS: tumor proportion score (fraction of PD-L1 expressing tumor cells); TC: fraction of PD-L1 expressing cells in the total tumor cells; IC: fraction of PD-L1 expressing cells in tumor infiltrating immune cells; OAK: atezolizumab vs. docetaxel in patients with previously treated non-small-cell lung cancer