欧盟批准武田抗癌药Adcetris用于霍奇金淋巴瘤患者干细胞移植后的巩固治疗

2016-07-07 佚名 生物谷Bioon.com

日本制药巨头武田(Takeda)抗癌管线近日在欧盟监管方面传来喜讯,欧盟委员会(EC)已批准扩大抗体药物偶联物(ADC)Adcetris(brentuximab vedotin)当前的有条件批准,用于接受自体干细胞移植(ASCT)后具有升高的复发或进展风险的CD30阳性霍奇金淋巴瘤(HL)成人患者的巩固治疗。当前,自体干细胞移植(ASCT)是霍奇金淋巴瘤患者一线化疗失败后的标准护理,但高达50

日本制药巨头武田(Takeda)抗癌管线近日在欧盟监管方面传来喜讯,欧盟委员会(EC)已批准扩大抗体药物偶联物(ADC)Adcetris(brentuximab vedotin)当前的有条件批准,用于接受自体干细胞移植(ASCT)后具有升高的复发或进展风险的CD30阳性霍奇金淋巴瘤(HL)成人患者的巩固治疗。当前,自体干细胞移植(ASCT)是霍奇金淋巴瘤患者一线化疗失败后的标准护理,但高达50%的患者接受ASCT治疗后会经历病情复发,目前尚无有效的治疗方案。通过Adcetris对残余疾病进行早期根除,将为这类患者预防病情复发提供最大的机会。

此次批准,标志着霍奇金淋巴瘤临床治疗的一个重大里程碑,使欧洲的临床医师首次有了一个耐受性良好的有效治疗方案,在患者接受自体干细胞移植(ASCT)之后立即进行巩固治疗,来降低病情复发的风险。

Adcetris的批准,是基于III期AETHERA研究的数据。该研究是探索ASCT之后立即进行巩固治疗作为一种新的治疗模式来延长移植效果以预防霍奇金淋巴瘤患者病情复发方面完成的首个随机试验。研究结果显示,ASCT之后立即进行Adcetris巩固治疗,将为患者提供一种有意义的新治疗选择。根据一个独立集中审查委员会评估的数据,与ASCT之后立即进行安慰剂+最佳支持护理(BSC)相比,霍奇金淋巴瘤患者在ASCT之后立即进行Adcetris+BSC巩固治疗时无进展生存期(PFS)实现统计学意义的显著延长(HR=0.57,p=0.001),PFS方面显著改善75%。该研究中,PFS的评估时间是患者启动治疗后至少2年。一项更新的分析显示,随访3年后Adcetris+BSC治疗组观察到持续的PFS改善(HR=0.58,95%(0.41,0.81))。一项既定的总生存期(OS)分析显示,2个治疗组无统计学显著差异。该研究中,Adcetris的安全性与该药现有的处方信息基本一致。

淋巴瘤是一类起源于淋巴系统的癌症的总称。淋巴瘤主要分为2类:霍奇金淋巴瘤和非霍奇金淋巴瘤。霍奇金淋巴瘤区别于其他类型淋巴瘤之处在于存在一种特征类型的细胞,名为斯腾伯格细胞(Reed-Sternberg cell),该细胞表达CD30。

Adcetris是一种抗体偶联药物(ADC),由靶向CD30蛋白的一种单克隆抗体和一种微管破坏剂(单甲基auristatin E,MMAE)通过一种蛋白酶敏感的交联剂偶联而成,该偶联技术为西雅图遗传学公司(Seattle Genetics)的专有技术。CD30蛋白是经典霍奇金淋巴瘤(HL)及系统性间变性大细胞淋巴瘤(sALCL)的明确生物标志物,而auristatin E可通过抑制微管蛋白的聚合作用阻碍细胞分裂。Adcetris在血液中可稳定存在,在被CD30阳性肿瘤细胞内化后,可释放出MMAE。

在欧洲,Adcetris于2012年10月获欧盟委员会有条件批准,用于2种适应症:(1)接受自体干细胞移植(ASCT)治疗失败的复发性或难治性CD30+霍奇金淋巴瘤患者,或之前已接受过至少2种方案治疗失败且不适合ASCT或多药化疗的复发性或难治性CD30+霍奇金淋巴瘤患者;(2)复发性或难治性系统性间变性大细胞淋巴瘤(sALCL)患者。

2016年1月,欧盟委员会批准Adcetris标签II类更新,纳入了以前对Adcetris治疗有缓解但之后病情复发的复发性或难治性霍奇金淋巴瘤(R/R HL)或复发性或难治性系统性间变性大细胞淋巴瘤(R/R sALCL)成人患者复治(retreatment,即再次治疗)的数据。自上市以来,Adcetris已改变了R/R HL和R/R sALCL的临床治疗格局,已成为诱导缓解的一个更有价值的工具。然而,淋巴瘤是一种无情的疾病,在一些难治性患者群体中经常复发。凭借复治(即再次治疗)数据,Adcetris将为治疗选择十分有限的患者群体提供另一次机会,使其再次从该药的治疗中受益。

原始出处:

Takeda Receives European Commission Approval of ADCETRIS? (brentuximab vedotin) for Consolidation Treatment in Post-Transplant Hodgkin Lymphoma

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    2016-07-09 sunylz
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