Merck & Co. Inc.'s PD-1 inhibitor Keytruda's(pembrolizumab) position in first-line non-small cell lung cancer (NSCLC) is now even stronger with the KEYNOTE-042 study showing the drug works well as monotherapy across levels of PD-L1 expression.
NSCLC is expected to account for close to half of the total immuno-oncology (IO) market and Keytruda has been consistently...
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