Roche Wins 'Complimentary' Diagnostic Approval With Bladder Cancer Immune Therapy

FDA approved Roche's Ventana PD-L1 assay to help identify patients more likely to respond to its Tecentriq drug for bladder cancer. It's approved as a helpful tool, rather than required test, with the drug, but the assay is part of a growing class of diagnostics that are likely to play an important supporting role in a promising and high-growth branch of oncology.