Hormonal therapy in breast cancer
In some types of cancer with a positive hormone receptor, studies have shown that chemotherapy leads to higher toxicity levels without extending the lifespan of patients. That is why it is recommended to initiate endocrine therapy instead of chemotherapy. This hormonal manipulation consists of using drug therapy with aromatase inhibitors to reduce the production of estrogens by the enzyme aromatase. Tamoxifen is also used in this hormonal manipulation, as well as luteinizing hormone-releasing hormone in pre-menopausal women.