Verzenio significantly reduced the risk of cancer recurrence by 25% for people with HR+, HER2- high risk early breast cancer.- Eli Lilly

Eli Lilly and Company announced Verzenio (abemaciclib) in combination with standard adjuvant endocrine therapy (ET) significantly decreased the risk of breast cancer recurrence by 25 percent compared to standard adjuvant ET alone for people with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) high risk early breast cancer (HR: 0.747; 95% CI: 0.598, 0.932; p = 0.0096). This statistically significant benefit was consistent across all pre-specified subgroups and corresponds to a 3.5 percent difference between arms (92.2 percent in the Verzenio arm and 88.7 percent in the control arm) at two years. These results are from a preplanned interim analysis with 323 IDFS events observed in the intent-to-treat population across both arms, including 136 in the Verzenio arm and 187 in the control arm. The data were presented in the Presidential Symposium at the European Society for Medical Oncology (ESMO) 2020 Virtual Congress and simultaneously published in the Journal of Clinical Oncology. Safety data from monarchE were consistent with the known safety profile of Verzenio and no new safety signals were observed. At the time of analysis, approximately 70 percent of patients in each arm were still on the two-year treatment period. The median follow up was approximately 15.5 months in both arms. The median duration on Verzenio was 14 months. monarchE randomized 5,637 patients with HR+, HER2- high risk early breast cancer from more than 600 sites in 38 countries. High risk was defined by cancer that spread to the lymph nodes, a large tumor size, or high cellular proliferation (as determined by tumor grade or Ki-67 index). Patients were treated for two years (treatment period) or until meeting criteria for discontinuation. After the treatment period, all patients will continue ET for five to 10 years, as clinically indicated. The addition of Verzenio to endocrine therapy also resulted in an improvement in distant relapse-free survival, or the time to developing cancer that has spread to other parts of the body . The combination reduced the risk of developing metastatic disease by 28 percent (HR: 0.717; 95% CI: 0.559, 0.920), with the largest reductions occurring in rates of metastases to the liver and bone. This treatment benefit was consistent across all prespecified subgroups. Two-year distant relapse-free survival rates were 93.6 percent in the Verzenio arm and 90.3 percent in the control arm..