MEK162 Shows Promising Clinical Activity in Ongoing Phase 2 Trial

Promising data on MEK162 in an ongoing Phase 2 trial of patients with BRAF and NRAS mutated advanced melanoma was presented today at the American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago, Illinois. MEK162, a small molecule selective inhibitor of the kinases MEK1 and MEK2, showed clinical activity and good tolerability in this patient population. This is the first targeted therapy to show activity in patients with NRAS mutated melanoma. Array BioPharma Inc.

invented MEK162 and licensed worldwide rights to develop and commercialize MEK162 to Novartis in April 2010. The ongoing Phase 2 open-label trial is being conducted by Novartis and continues to enroll patients.