February 12, 2019 09:06 AM EST R&D In the battle against kidney cancer, Merck's keystone immunotherapy Keytruda edges in front Natalie Grover Reporter Merck $MRK may not just have a leg up over Bristol-Myers Squibb $BMY in the lucrative field of lung cancer. It looks like the company’ … Sign up to read this article for free. Get free access to a limited number of articles, plus choose newsletters to get straight to your inbox. SIGN UP LOG IN BECOME A PREMIUM SUBSCRIBER