I thought I read in a scientific journal somewhere (can't truly recall) that one of the ridaforolimus combination trials (with a Merck drug) in solid tumors showed efficacy in an endometrial subset (amongst others).
I'm sure this is the debate in Merck right now. Go solo, or go combo. And, the dinosaurs at Merck will send it through 24 different committees and one blue ribbon panel for 4 years to figure out which one to do.