On April 11, the U.S. Food and Drug Administration approved pembrolizumab (KEYTRUDA) as a first-line treatment for patients with advanced NSCLC who have a score of 1% or higher on the PD-L1 biomarker test. The approval was based on KEYNOTE-042 trial which demonstrated statistically significant OS improvements for those randomized to pembrolizumab compared with chemotherapy.

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