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去势抗拒前列腺癌治疗新药醋酸阿比特龙_周爱萍.pdf

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Chinese Journal of New Drugs 2013,22?17? ·新药述评· 去势抗拒前列腺癌治疗新药醋酸阿比特龙 周爱萍,房 虹,李长岭,孙 燕 ?中国医学科学院北京协和医学院肿瘤医院,北京 100021? [摘要] 雄激素生成和雄激素受体的活化仍然在去势抗拒的前列腺癌?CRPC?的进展中发挥了中心作 用,抑制雄激素信号轴仍然是 CRPC 治疗的重要策略。醋酸阿比特龙是一种细胞色素氧化酶 CYP17 的高选 择性不可逆强效抑制剂,能进一步显著降低 CRPC 患者体内的睾丸酮水平。III 期随机对照研究证实对于多 西紫杉醇失败的 CRPC,醋酸阿比特龙联合泼尼松可以显著提高 PSA 缓解率、肿瘤客观缓解率,延长肿瘤进 展时间和总生存时间,为多西紫杉醇失败的 CRPC 提供了新的治疗手段,且安全性良好。 [关键词] 醋酸阿比特龙? 去势抗拒前列腺癌? 药理学? 药动学 [中图分类号] R971. 9 [文献标志码] A [文章编号] 1003 - 3734?2013?17 - 1998 - 04 Abiraterone acetate? a novel drug for castration-resistant prostate cancer ZHOU Ai-ping,FANG Hong,LI Chang-ling,SUN Yan ?Cancer Hospital,Chinese Academy of Medical Science & Peking Union Medical College,Beijing 100021,China? [Abstract] Castration-resistant prostate cancer ?CRPC? is thought to be hormone driven. Inhibition of the androgen signal axis remains an important treatment strategy for CRPC. Abiraterone acetate,a selective potent in- hibitor of CYP17,is able to further greatly decrease the serum testerone virtually to an undetectable level. Random- ized phase III clinical trial has revealed that abiraterone acetate significantly increases PSA and tumor response rate,and prolongs time to disease progression and overall survival time. Abiraterone acetate has become a novel treatment option for CRPC patients. Abiraterone is well tolerated with a low incidence of grade 3 or 4 side effects. [Key words] abiraterone acetate? castration-resistant prostate cancer? pharmacology? pharmacokinetics 转移性前列腺癌前期以内分泌治疗为主,中位 下雄激素受体往往被过度活化,且活化的雄激素受 缓解时间为 18 ~ 24 个月,但此后几乎所有的患者逐 体对雄激素高度敏感,这可能与雄激素受体过表达、 渐失去对激素的敏感性,发展为去势抗拒的前列腺 基因扩增或点突变、雄激素受体的活性构成截断拼 癌?castratio
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