Fig. 3: Progression-free survival and duration of response.

a Overall and b by PD-L1 expression (tumour response analysis set). PD-L1 TC expression (high: ≥20%; low/negative: <20%) was determined at baseline. CI confidence interval, DoR duration of response, NC not calculable, PD-L1 programmed cell death ligand-1, PFS progression-free survival, TC tumour cell.