Merck & Co. Inc.'s PD-1 inhibitor Keytruda came very close to matching Bristol-Myers Squibb Co.'s competing Opdivo in the first quarter, with $1.46bn and $1.51bn in sales, respectively – but while the immuno-oncology news is great, investors are still clamoring for growth in other areas.
Keytruda sales were up by 151%, the firm reported May 1, while Opdivo had risen 34% from the same period...







