Roche (SIX: RO, ROG; OTCQX: RHHBY) today announced approval of the VENTANA PD-L1 (SP142) Assay1 by the US Food and Drug Administration (FDA) as a complementary diagnostic to provide PD-L1 status on patients who are considering treatment with the FDA approved Roche immunotherapy TECENTRIQ™ (atezolizumab) for metastatic urothelial cancer (mUC). This test is the first to evaluate patient PD-L1 status using immune cell staining and scoring within the tumor microenvironment, providing clinicians with information that may guide immunotherapy decisions2.