Dr. Janne and the SU2C-American Cancer Society Lung Cancer Dream Team have been focused on treating lung cancer patients with mutant KRAS. In this new publication, they report that a subgroup of patients with mutant KRAS may benefit from drugs called MEK inhibitors, if these patients do not have as much of the non-mutant KRAS protein. This information is helpful in deciding what treatments can be used for certain patients with mutant KRAS.