Schematic representation of concomitant drugs’ impact on immune checkpoint inhibitors (ICIs) effectiveness in urothelial cancer. Proton-pump inhibitors (PPIs), antibiotics, steroids and analgesics are associated with a detrimental impact on survival outcomes and are in the red areas; conversely, metformin, β-blockers, renin-angiotensin-aldosterone system (RAAS) inhibitors and statins could improve ICIs effectiveness and are in the green areas. PD-1: Programmed Death-1; PD-L1: Programmed Death-Ligand 1; TGF-β: Transforming Growth Factor-β; VEGF: Vascular Endothelial Growth Factor.
Predictive factors for ICIs effectiveness in urothelial carcinoma are lacking. This narrative review summarizes evidence on the impact of concomitant medications on outcomes in patients with mUC treated with ICIs.
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