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Lancet :黑色素瘤脑转移患者可从依匹单抗中受益

2012-03-27 The Lancet Oncology The Lancet Oncology

晚期黑色素瘤脑转移病人传统上被临床试验所排除,但是这种模式应该改变。一个小型的2期试验是首次针对晚期黑色素瘤脑转移患者的临床试验之一,发现依匹单抗带来的效益与没有脑转移的晚期黑色素瘤病人类似。该研究发表在3月26日的柳叶刀肿瘤杂志上。 我们相信这些数据足以支持依匹单抗在脑转移病人中的使用,尤其是小而无症状的转移。研究者Kim Margolin讲到。 根据Rosalie Fisher和

晚期黑色素瘤脑转移病人传统上被临床试验所排除,但是这种模式应该改变。一个小型的2期试验是首次针对晚期黑色素瘤脑转移患者的临床试验之一,发现依匹单抗带来的效益与没有脑转移的晚期黑色素瘤病人类似。该研究发表在3月26日的柳叶刀肿瘤杂志上。


我们相信这些数据足以支持依匹单抗在脑转移病人中的使用,尤其是小而无症状的转移。研究者Kim Margolin讲到。

根据Rosalie Fisher和James Larkin的同期述评,这些结果有非常重要的影响。我们需要提供给这类人有效的药物一直是一项紧迫的问题,这些结果显示依匹单抗的活性是真实的,数据显示脑转移的存在不影响依匹单抗的疗效。此外,脑转移患者被排除在临床试验之外的时代应该结束了。(述评原文)

第一项重视这个问题的临床试验
 
晚期黑色素瘤脑转移的发生率估计10%~50%,尸检结果显示发生率应该更高——66%~75%。这类病人的治疗是非常具有挑战性的。黑色素瘤通常耐受放疗和细胞毒性化疗,诊断脑转移后的总体生存期平均只有4个月。这项研究首次关注了该问题。

该临床试验纳入了72个晚期黑色素瘤脑转移病人,其中51个神经系统无症状,在进入时不接受皮质类固醇治疗,21个病人有症状,服用稳定剂量的皮质类固醇。

所有病人都服用4个剂量的依匹单抗,10mg/kg,静脉注射,每三周1次。比目前通常的剂量(3mg/kg,每3周,4个剂量)要高一些,在3期研究中将会直接比较这两种剂量。

12周评估显示,51个无症状病人中9个疾病得到控制(18%),21个有症状病人中1个得到控制(5%)。此外,研究组评估大脑本身的疾病控制(无症状24%,有症状10%)和脑外疾病的控制(无症状27%,有症状5%)。

 无症状患者中位生存期为7个月,有症状患者为3.7个月。长期生存率与无脑转移的黑色素瘤病人类似,两组中近三分之一的病人在1年仍然存活,26%无症状病人、10%有症状病人在2年仍然存活。

在24周临床稳定的病人可接受依匹单抗维持治疗,10mg/kg,每12周1次,只有11个无症状病人和2个有症状病人接受了维持治疗(平均,6或7个剂量)。
 
最常见的3级不良反应为腹泻,疲劳,脱水高血糖,皮炎,肝酶升高。一个无症状的病人死于药物相关的并发症——免疫相关性结肠炎。

研究者推测,有症状病人受益较小可能是因为类固醇对依匹单抗疗效的负性影响,还需要进一步的研究来证实。
 

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    2012-10-13 sunylz
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    2012-08-10 howi
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    2012-04-22 fabien

    Wow! Talk about a posting kncoknig my socks off!

    0

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