
Stephen Johnston, MA, PhD, FRCP, discusses the results of the phase 3 monarchE study examining the addition of abemaciclib to endocrine therapy in patients with high-risk early hormone receptor–positive, HER2-negative breast cancer.

Stephen Johnston, MA, PhD, FRCP, discusses the results of the phase 3 monarchE study examining the addition of abemaciclib to endocrine therapy in patients with high-risk early hormone receptor–positive, HER2-negative breast cancer.