Neoadjuvant endocrine therapy in breast cancer: current role and future perspectives

• Published in: Ecancermedicalscience Vol. 10; p. 609
• Main Authors: Barroso-Sousa, Romualdo, Silva, Danilo D A Fonseca Reis, Alessi, Joao Victor Machado, Mano, Max Senna
• Format: Journal Article
• Language: English
• Published: England Cancer Intelligence 07-01-2016
• Subjects: Breast cancer; Review; breast neoplasm; luminal breast cancer; aromatase inhibitors; locally advanced breast cancer; neoadjuvant therapy; endocrine therapy
• ISSN: 1754-6605; 1754-6605
• DOI: 10.3332/ecancer.2016.609

Luminal breast cancer, as defined by oestrogen and/or progesterone expression by immunohistochemistry, accounts for up to 75% of all breast cancers. In this population, endocrine therapy is likely to account for most of the gains obtained with the administration of adjuvant systemic treatment. The role of adjuvant chemotherapy in these patients remains debatable since it is known that only a small fraction of patients will derive meaningful benefit from this treatment whilst the majority will be exposed to significant and unnecessary chemotherapy-related toxicities, in particular the elderly and frail. Therefore, neoadjuvant endocrine therapy (NET) becomes an attractive option for selected patients with hormonal-receptor positive locally advanced breast cancer. In this review, we discuss the current role of NET and future perspectives in the field.