Jimmy Carter Credits Merck's Keytruda For Cancer-Free Success

While Bristol-Myers Squibb & Co.'s programmed death-1 (PD-1) immune checkpoint inhibitor Opdivo (nivolumab) is well ahead of Merck & Co.'s competing drug Keytruda (pembrolizumab) in FDA approved indications, it's the latter drug that's likely going to stick in the minds of the American public – at least for the time being.