Use the hyperlinks, where available to access additional clinical trial information.
A Randomized, Double-Blind, Phase III Study of Pembrolizumab Versus Placebo in Combination With Neoadjuvant Chemotherapy and Adjuvant Endocrine Therapy for the Treatment of High-Risk Early-Stage Estrogen Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer
This is a randomised trial, in which patients will receive either pembrolizumab or a placebo via intravenous (IV) infusion once every 3 weeks (Q3W) + paclitaxel (X) 80 mg/m^2 via IV infusion once weekly (QW) for 4 cycles (Treatment 1). This will be followed by followed by pembrolizumab or placebo via IV infusion + doxorubicin or epirubicin (A or E; 60 mg/m^2 or 100 mg/m^2) via IV infusion Q3W + cyclophosphamide (C) 600 mg/m^2 via IV infusion Q3W for 4 cycles (Treatment 2). At 3 to 6 weeks after last cycle of neoadjuvant treatment, participants will undergo definitive surgery for their breast cancer. After surgery, participants will begin adjuvant study treatment. In the adjuvant setting, participants receive pembrolizumab or placebo via IV infusion Q3W for 9 cycles + variable endocrine therapy for up to 10 years. Each cycle is 21 days long.