{"id":168,"date":"2014-05-24T23:53:23","date_gmt":"2014-05-24T23:53:23","guid":{"rendered":"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/?page_id=168"},"modified":"2018-08-13T02:14:05","modified_gmt":"2018-08-13T02:14:05","slug":"xtandi-enzalutamide","status":"publish","type":"page","link":"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/xtandi-enzalutamide\/","title":{"rendered":"Xtandi (enzalutamide) for Treatment of Prostate Cancer"},"content":{"rendered":"<h1><b>The Role of Xtandi&nbsp;(enzalutamide)<\/b><b>&nbsp;in Treatment of Men with Prostate Cancer<\/b><\/h1>\n<p>by<strong> <a href=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/about\/urologists\/dr-alex-shteynshlyuger\/\">Alex Shteynshlyuger MD<\/a><\/strong><\/p>\n<hr>\n<p><strong>If you have any questions, to&nbsp;<a href=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/appointments\/\">schedule a consultation<\/a>&nbsp;or if you need a <a href=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/second-opinion\/\">second opinion<\/a>, please<a href=\"\/?page_id=876\">&nbsp;<\/a><a href=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/contactus\/\">contact us<\/a>&nbsp;or call: <a onclick=\"goog_report_conversion ('tel: 6466635515')\" href=\"tel:6466635515\">646-663-5515<\/a><\/strong><\/p>\n<hr>\n<h2>Xtandi: New Approach to Treatment of Hormone Refractory Prostate Cancer<\/h2>\n<p>Xtandi (enzalutamide) previously known as&nbsp;MDV3000) is a powerful anti-androgen and hormonal treatment for prostate cancer. &nbsp;It acts through multiple molecular targets including inhibition of the androgen receptor as well as inhibition of androgen syntheses.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-761\" src=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/wp-content\/uploads\/sites\/4\/2014\/04\/double_helix_shutterstock_117506425-300x191.jpg\" alt=\"Xtandi for Prostate Cancer\" width=\"300\" height=\"191\" srcset=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/wp-content\/uploads\/sites\/4\/2014\/04\/double_helix_shutterstock_117506425-300x191.jpg 300w, https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/wp-content\/uploads\/sites\/4\/2014\/04\/double_helix_shutterstock_117506425-370x236.jpg 370w, https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/wp-content\/uploads\/sites\/4\/2014\/04\/double_helix_shutterstock_117506425.jpg 500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Xtandi extending has shown its effectiveness in men with metastatic prostate cancer who failed androgen deprivation therapy (ADT) as well as those who have failed second-line chemotherapy with docetaxel. &nbsp;Xtandi&nbsp;has shown an improvement in overall survival for these men.<\/p>\n<p>It is likely based on its mechanism of action and general effectiveness in late-stage prostate cancer that in time it will be shown to be effective and beneficial at earlier stages of high-risk prostate cancer. &nbsp;I envision that Xtandi and Zytiga&nbsp;will become first-line therapy for high-risk prostate cancer in adjuvant and neoadjuvant settings as well as for PSA recurrence after primary treatment in lieu of ADT.<\/p>\n<p>XTANDI (enzalutamide) is marketed by Astellas \/ Medivation. The recommended dose is 160 mg (four&nbsp;40mg pills) once daily with or without food. &nbsp;There is n<b>o need for corticosteroid coadministration. Based on studies, patients who fail ADT, should be continued on ADT therapy.<\/b><\/p>\n<h2><em><b>Side Effects and Risks of Xtandi<\/b><\/em><\/h2>\n<p><b>Seizures 1%;<\/b> falls 4.6% vs 1% placebo.&nbsp; Neutropenia is fairly mild. &nbsp; Cauda equine syndrome and cord compression 6.6% vs 3.8%.<\/p>\n<ul>\n<li><b>Androgen receptor inhibitor.<\/b>&nbsp; Competitive inhibitor of androgen receptor binding; inhibits AR (androgen receptor nuclear translocation) and its interaction with DNA<\/li>\n<li>Docetaxel pretreated patients: Improved OS HR=0.63. Median survival 18 vs 13 months. +\/-. ECOG 1-2 enrolled.<\/li>\n<li>&nbsp;1,700 men with metastatic prostate cancer that has progressed despite androgen deprivation therapy and who have not yet received chemotherapy. median overall survival of 32.4 months (95% confidence interval, 31.5 months-upper limit not yet reached) versus 30.2 months&nbsp;&nbsp;&nbsp;&nbsp; Enzalutamide provided a 30% reduction in risk of death compared with placebo 81% reduction in risk of radiographic progression or death compared with placebo&nbsp; The median radiographic progression-free survival was not yet reached (95% confidence interval, 13.8 months-upper limit not yet reached) in the enzalutamide arm and was 3.9 months<\/li>\n<\/ul>\n<h2>Phase 3 PREVAIL trial results<\/h2>\n<p>This trial&nbsp;enrolled&nbsp;patients with patients with metastatic castration-resistant prostate cancer who have failed androgen deprivation therapy. This&nbsp;trial demonstrated improved overall survival in men who received Xtandi.<\/p>\n<p>Enzalutamide (Xtandi) was&nbsp;shown to improve overall survival in patients with metastatic prostate cancer who had failed chemotherapy and\/or androgen deprivation therapy.<\/p>\n<h2>Current Studies of Enzalutamide&nbsp;(Xtandi)<\/h2>\n<p><b>ClinicalTrials.ORG:<\/b><\/p>\n<p>enzalutamide&nbsp;is being studied in breast cancer;&nbsp;as a neoadjuvant treatment in high-risk patients undergoing radical prostatectomy as well as an adjuvant treatment in men with high-risk disease after radical prostatectomy<\/p>\n<hr>\n<p><strong> you have any questions, to&nbsp;<a href=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/appointments\/\">schedule a consultation<\/a>&nbsp;or if you need a <a href=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/second-opinion\/\">second opinion<\/a>, please<a href=\"\/?page_id=876\">&nbsp;<\/a><a href=\"https:\/\/www.newyorkurologyspecialists.com\/prostate-cancer\/contactus\/\">contact us<\/a>&nbsp;or call: <a onclick=\"goog_report_conversion ('tel: 6466635515')\" href=\"tel:6466635515\">646-663-5515<\/a><\/strong><\/p>\n<hr>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Role of Xtandi&nbsp;(enzalutamide)&nbsp;in Treatment of Men with Prostate Cancer by Alex Shteynshlyuger MD If you have any questions, to&nbsp;schedule a consultation&nbsp;or if you need a second opinion, please&nbsp;contact us&nbsp;or call: 646-663-5515 Xtandi: New Approach to Treatment of Hormone Refractory Prostate Cancer Xtandi (enzalutamide) previously known as&nbsp;MDV3000) is a powerful anti-androgen and hormonal treatment for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-168","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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