Vol 6: Use of mTOR inhibitors in the treatment of breast cancer: an evaluation of factors that influence patient outcomes.Reportar como inadecuado



 Vol 6: Use of mTOR inhibitors in the treatment of breast cancer: an evaluation of factors that influence patient outcomes.


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This article is from Breast Cancer : Targets and Therapy, volume 6.AbstractMany systemic treatment options are available for advanced breast cancer, including endocrine therapy, chemotherapy, anti-human epidermal growth factor receptor 2 HER2 therapy, and other targeted agents. Recently, everolimus, a mammalian target of rapamycin mTOR inhibitor, combined with exemestane, an aromatase inhibitor, has been approved in Europe and the USA for patients suffering from estrogen receptor-positive, HER2-negative advanced breast cancer previously treated by a nonsteroidal aromatase inhibitor, based on the results of BOLERO-2 Breast cancer trials of OraL EveROlimus. This study showed a statistically significant and clinically meaningful improvement in median progression-free survival. Results concerning the impact on overall survival are expected in the near future. This clinically oriented review focuses on the use of mTOR inhibitors in breast cancer. Results reported with first-generation mTOR inhibitors ridaforolimus, temsirolimus, everolimus are discussed. The current and potential role of mTOR inhibitors is reported according to breast cancer subtype estrogen receptor-positive HER2-negative, triple-negative, and HER2-positive ER-positive-negative disease. Everolimus is currently being evaluated in the adjuvant setting in high-risk estrogen receptor-positive, HER2-negative early breast cancer. Continuing mTOR inhibition or alternatively administering other drugs targeting the phosphatidylinositol-3-kinase-protein kinase B-mTOR pathway after progression on treatments including an mTOR inhibitor is under evaluation. Potential biomarkers to select patients showing a more pronounced benefit are reviewed, but we are not currently using these biomarkers in routine practice. Subgroup analysis of BOLERO 2 has shown that the benefit is consistent in all subgroups and that it is impossible to select patients not benefiting from addition of everolimus to exemestane. Side effects and impact on quality of life are other important issues discussed in this review. Second-generation mTOR inhibitors and dual mTOR-phosphatidylinositol-3-kinase inhibitors are currently being evaluated in clinical trials.



Autor: Jerusalem, Guy; Rorive, Andree; Collignon, Joelle

Fuente: https://archive.org/







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