KENILWORTH, N.J.–(BUSINESS WIRE)–Merck (NYSE:MRK), known as MSD outside the United States and Canada, today announced that the U.S. Food and Drug Administration (FDA) has accepted for review a supplemental Biologics License Application (sBLA) for KEYTRUDA, Merck’s anti-PD-1 therapy, in combination with carboplatin-paclitaxel or nab-paclitaxel as a first-line treatment for metastatic squamous non-small cell lung cancer …