N Engl J Med:恩杂鲁胺有效延缓未转移前列腺癌病情进展

2018-08-06 飞奔的小马 肿瘤资讯

对于那些未转移的去势抵抗性前列腺癌患者来说,如果出现PSA的迅速升高,则很可能预示着患者存在较高的转移风险,前期的研究已经证实,恩杂鲁胺可以延长转移性去势抵抗性前列腺癌患者的总体生存期,那么它是否能够同样有效于未转移的去势抵抗性前列腺癌呢?其对延缓此类患者的肿瘤转移时间和PSA升高情况能否起到更多的帮助呢?近日,Maha Hussain等人报道了他们关于此方面的临床研究[1],为此类病人的化疗


对于那些未转移的去势抵抗性前列腺癌患者来说,如果出现PSA的迅速升高,则很可能预示着患者存在较高的转移风险,前期的研究已经证实,恩杂鲁胺可以延长转移性去势抵抗性前列腺癌患者的总体生存期,那么它是否能够同样有效于未转移的去势抵抗性前列腺癌呢?其对延缓此类患者的肿瘤转移时间和PSA升高情况能否起到更多的帮助呢?近日,Maha Hussain等人报道了他们关于此方面的临床研究,为此类病人的化疗方案选择提供了有效的依据。

基本情况

本次研究是一项双盲Ⅲ期临床试验,研究人员将未发生转移但是PSA倍增时间少于10个月的去势抵抗性前列腺癌患者按照2:1的比例随机分配到了治疗组和对照组,两组均正常接受雄激素剥夺治疗,试验组每天另外接受恩杂鲁胺治疗,对照组每天则使用安慰剂治疗,每日的剂量均为160毫克。研究的主要终点事件为无转移生存时间。

治疗结果

共有1401名符合条件的患者参与了本次临床研究(平均PSA倍增时间为3.7个月),直到2017年6月28日,恩杂鲁胺治疗组共有219人发生转移或死亡(共933人,23%),而在安慰剂组这一数据为288人(共468人,49%)。恩杂鲁胺组的平均无转移生存期为36.6个月,安慰剂组平均无转移生存期仅为14.7个月(转移或死亡的危险比为0.29,P<0.001)。在首次用药后的后续抗肿瘤疗效持续时间方面,恩杂鲁胺组也要明显好于安慰剂组,两组数据分别为39.6个月和17.7个月(危险比为0.21,P<0.001),在针对PSA升高的情况方面,恩杂鲁胺组的效果也要好于安慰剂组,从初次用药到PSA升高的时间来看,试验组的时间要明显长于对照组的时间,两组该项时间分别为37.2个月和3.9个月。在接受第一次中期生存分析时,接受恩杂鲁胺治疗的患者有103例(11%)已经死亡,而这个数字在接受安慰剂的患者中为62例(13%)。在副作用方面,与接受安慰剂的患者相比,在接受恩杂鲁胺治疗的患者中,有31%的患者发生了3级以上的不良反应。


讨论

通过本次报道我们发现,对于此类未发生转移的去势抵抗性前列腺癌患者来说,恩杂鲁胺能够起到明显的延缓病情进一步发展的作用,特别是在转移发生时间,首次用药后疗效持续时间和PSA进展时间方面,恩杂鲁胺都有着不俗的表现。虽然恩杂鲁胺治疗组相较于安慰剂组有着更加多见的副作用,但是瑕不掩瑜,这种治疗方法的拓展必将进一步帮助未转移去势抵抗性前列腺癌病人控制病情的进展。

原始出处:

Hussain M1, Fizazi K1, Saad F1, Rathenborg P1, Shore N1, Ferreira U1, Ivashchenko P1, Demirhan E1, Modelska K1, Phung1, Krivoshik A1, Sternberg CN1. Enzalutamide in Men with Nonmetastatic, Castration-Resistant Prostate Cancer. N Engl J Med. 2018 Jun 28;378(26):2465-2474. doi: 10.1056/NEJMoa1800536.

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    2019-05-01 spoonycyy
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    2018-09-26 haouestc
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    2018-08-07 哈哈869

    学习了

    0

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    2018-08-06 kafei

    了解一下谢谢

    0

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