Neoadjuvant chemotherapeutic and targeted therapies for early-stage, high-risk breast cancer

Abstract

Neoadjuvant or preoperative chemotherapy is the preferred treatment for locally advanced, inflammatory and early-stage high-risk breast cancers. Patients with locally advanced breast cancers are candidates for neoadjuvant therapy because their tumours are often not amenable to resection. On the other hand, patients are candidates for neoadjuvant chemotherapy if the breast-conserving surgery is not possible. At present, anthracycline- and taxane-based chemotherapy regimens remain as the cornerstone for neoadjuvant therapy in early breast cancer, but there is a clear need for effective therapies in high-risk, early-stage patients. A number of chemotherapeutic and targeted therapies have been evaluated in clinical trials with varying results. The US Food and Drug Administration (FDA) has recently approved pertuzumab in combination with trastfuzumab and cytotoxic chemotherapy as a neoadjuvant therapy option for HER2-positive breast cancer. This article reviews the neoadjuvant chemotherapeutic and targeted therapies options for early-stage, high-risk breast cancer. Possible role of molecular subtyping in triple-negative breast cancer is also described.