The conclusion that PD‐L1 expression is entwined with the efficacy of PD‐1/PD‐L1 inhibitors has been reported by several studies, such as the IMvigor‐210 and NCT01693562 studies; however, the CheckMate 275 found that PD‐L1 expression could not predict tumour response.6, 8, 12. This evidence concerns the gene CD274 and neoplasm.