Moreover, in a Phase II trial conducted by Lampert and colleagues, testing the combination of the PARP inhibitor olaparib and the anti-PD-L1 antibody durvalumab, sequentially obtained tumour biopsies revealed an upregulation of CXCL9 and an induction of TILs 14 days after onset of therapy [20]. The gene discussed is CXCL9; the disease is neoplasm.