Table 1.

Cut‐off values of PD‐L1 IHC assays associated with PD‐1 and PD‐L1 checkpoint agents for treatment of NSCLC.

	DAKO 28‐8	DAKO 22C3	VENTANA SP142	VENTANA SP263
PD‐L1 IHC assay cut‐off values	TC ≥ 1% TC ≥ 5% TC ≥ 10%	TPS ≥ 1% TPS ≥ 50%	TC ≥ 1% or IC ≥ 1% TC ≥ 5% or IC ≥ 5% TC ≥ 50% or IC ≥ 10%	TC ≥ 1% TC ≥ 5% TC ≥ 10% TC ≥ 25% TC ≥ 50%

IC, immune cell; TC, tumour cell; TPS, tumour proportion score.