Objective: To review and evaluate current literature on the US Food and Drug Administration (FDA)-approved drug enzalutamide (XTANDI®) in metastatic castration-resistant prostate cancer. Data sources: Literature search was done through PubMed using the terms enzalutamide, MDV3100, abiraterone, and castration-resistant prostate cancer. Data from FDA product labels were also used. Study selection and data extraction: Recent and relevant studies were included in the review. Collected clinical trials were screened and evaluated. Data synthesis: Enzalutamide is an androgen receptor (AR) inhibitor with high selectivity and affinity to the AR. It was approved by the FDA to treat metastatic castration-resistant prostate cancer in patients previously treated with docetaxel, after a Phase III trial (AFFIRM) that showed a 4.8-month survival benefit in this population. Recently, the FDA expanded the approval of enzalutamide as first-line therapy for metastatic castration-resistant prostate cancer (mCRPC) who did not receive chemotherapy. Moreover, enzalutamide is shown to be associated with an acceptable safety profile. Conclusion: Enzalutamide has been shown to be both safe and effective in improving overall survival in metastatic castration-resistant prostate cancer postchemotherapy with docetaxel and as a first line treatment before initiation of chemotherapy. However, additional studies and head-to-head trials are needed.
CITATION STYLE
Ramadan, W. H., Kabbara, W. K., & Al Masri, H. S. A. B. (2015, April 17). Enzalutamide for patients with metastatic castration-resistant prostate cancer. OncoTargets and Therapy. Dove Medical Press Ltd. https://doi.org/10.2147/OTT.S80488
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