Prognostic value of PD-L1 expression and association with HRD in high-grade serous ovarian cancer: an ancillary analysis of the PAOLA-1/ENGOT-ov25 trial (GINECO).
BACKGROUND The prognostic significance of programmed death-ligand 1 (PD-L1) in high-grade serous ovarian cancer (HGSOC) remains uncertain, because of heterogeneity in assays, scoring systems, and assessment of tumor and immune compartments across studies. We therefore evaluated its biological and prognostic relevance u...