Exemestane is an aromatase inhibitor that is primarily used in the treatment of hormone-receptor-positive breast cancer in postmenopausal women. By decreasing estrogen production in the body, exemestane helps to slow or stop the growth of certain types of breast tumors that require estrogen to grow.
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Primary Indications for Exemestane
The use of exemestane is indicated for the following scenarios:
- Adjuvant Treatment: Exemestane is often prescribed as adjuvant therapy for postmenopausal women with hormone-receptor-positive early breast cancer following surgery.
- Metastatic Breast Cancer: It is indicated for the treatment of advanced or metastatic breast cancer in postmenopausal women who have progressed on or after tamoxifen therapy.
- Extended Adjuvant Therapy: Exemestane can be used as extended adjuvant therapy, particularly for women who have completed five years of tamoxifen treatment.
Mechanism of Action
Exemestane works by irreversibly inhibiting aromatase, an enzyme responsible for converting androgens into estrogens in postmenopausal women. This reduction in estrogen levels is crucial as many breast cancers are fueled by this hormone.
Conclusion
Understanding the indications for the use of exemestane is essential for effective breast cancer management. As a targeted therapy, it provides an important treatment option for postmenopausal women dealing with hormone-receptor-positive breast cancer.
