Regeneron to Acquire Checkmate Pharmaceuticals and Its Investigational Immune Activator for Potential Use in Multiple Tumor Types

Proposed ~$250 million all-cash acquisition strengthens Regeneron’s portfolio of diverse and combinable immuno-oncology candidates

Lead investigational asset vidutolimod is a potential best-in-class TLR9 agonist, with demonstrated clinical responses observed in PD-1 refractory melanoma as monotherapy