Prostate Cancer Research Program, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.
Ther Adv Urol. 2012 Aug;4(4):167-78. doi: 10.1177/1756287212452196.
The number of life-prolonging therapies proven effective in the treatment of metastatic castrate-resistant prostate cancer (CRPC) has been limited until recently. In the past 2 years several such therapies have come to market. In 2010, the autologous immunotherapy sipuleucel-T and the next-generation taxane cabazitaxel were approved in this setting. However, abundant evidence has shown that CRPC growth continues to be driven through androgen-dependent signaling. Both of these drugs fail to take advantage of this targetable oncogenic pathway. Potent specific inhibitors of cytochrome P450-17 have been engineered with the aim of suppressing androgen synthesis beyond that seen with the luteinizing hormone-releasing hormone agonists/antagonists. Abiraterone acetate was developed by rational design based on a pregnenolone parent structure. Its approval by the US Food and Drug Administration (FDA) was granted in 2011 based on phase III data demonstrating an overall survival advantage compared with placebo. More recently, other drugs that act along the androgen signaling pathway, such as orteronel (TAK-700), galeterone (TOK-001), enzalutamide (MDV3100) and ARN-509, have shown promise in clinical trials. Some of these are expected to gain FDA approval in the near future. Here, we review abiraterone and other novel androgen-directed therapeutic strategies for the management of advanced prostate cancer.
直到最近,在转移性去势抵抗性前列腺癌(CRPC)的治疗中,被证实有效的延长生命的疗法的数量一直有限。在过去的 2 年中,有几种这样的疗法已经上市。2010 年,自体免疫疗法 sipuleucel-T 和下一代 taxane cabazitaxel 在这种情况下获得批准。然而,大量证据表明,CRPC 的生长仍然通过雄激素依赖性信号驱动。这两种药物都没有利用这一可靶向的致癌途径。已经设计出了强效的细胞色素 P450-17 特异性抑制剂,旨在抑制雄激素合成,超过黄体生成素释放激素激动剂/拮抗剂的作用。醋酸阿比特龙是基于孕烯醇酮母体结构的合理设计开发的。基于 III 期数据显示与安慰剂相比具有总体生存优势,其于 2011 年获得美国食品和药物管理局(FDA)的批准。最近,其他沿着雄激素信号通路作用的药物,如阿比特龙(TAK-700)、galeterone(TOK-001)、恩扎鲁胺(MDV3100)和 ARN-509,在临床试验中显示出了希望。其中一些药物预计在不久的将来将获得 FDA 的批准。在这里,我们回顾了阿比特龙和其他用于治疗晚期前列腺癌的新型雄激素导向治疗策略。