PD-L1 expression and pattern of immune cells in pre-treatment specimens are associated with disease-free survival for HR-NMIBC undergoing BCG treatment.

To assess the association between PD-L1 expression and disease-free survival (DFS) in High-Risk Non-Muscle Invasive Bladder Cancer (HR-NMIBC) patients treated with intravesical Bacillus Calmette-Guerin (BCG) instillations (IBI).