Regeneron Pharmaceuticals Inc. proposes to buy Checkmate Pharmaceuticals Inc. though an all-cash price of $10.50 per share for about $250 million. That’s pretty much on target with Checkmate’s April 19 closing share price (NASDAQ:CMPI) of $10.35, as the stock gained a staggering 326% on the day.
With the FDA approval of Keytruda (pembrolizumab, Merck & Co. Inc.) in the front-line setting of metastatic or unresectable, recurrent head and neck cancer squamous cell carcinoma, the space has become a race to develop drugs using a variety of mechanisms of action to improve the efficacy of the anti-PD-1 monoclonal antibody.
Checkmate Pharmaceuticals Inc., of Cambridge, Mass., completed an $85 million series C to continue developing CMP-001, a differentiated Toll-like receptor 9 (TLR9) agonist, for treating anti-PD-1-refractory melanoma and to study additional indications that include front-line melanoma and head and neck squamous cell carcinoma.