Therapeutic Response Statement (Sensitivity)
This therapeutic response statement supports the relationship that ER positive, HER2-negative status confers therapeutic sensitivity to Abemaciclib, Anastrozole in patients with Invasive Breast Carcinoma.
The U.S. Food and Drug Administration (FDA) granted approval to abemaciclib in combination with an aromatase inhibitor as an initial endocrine-based therapy for the treatment of adult patients with hormone receptor (HR)-positive, human epidermal growth factor 2 (HER2)-negative advanced or metastatic breast cancer. This indication is based on the MONARCH 3 (NCT02246621) clinical trial, which was a randomized (2:1), double-blinded, placebo-controlled, multicenter study. A total of 493 patients were randomized to receive 150 mg abemaciclib or placebo orally twice daily, plus physician's choice of letrozole (80% of patients) or anastrozole (20%).
This statement is based on a regulatory approval from the Food and Drug Administration:
Verzenio is a kinase inhibitor indicated in combination with an aromatase inhibitor as initial endocrine-based therapy for the treatment of adult patients with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative advanced or metastatic breast cancer.