J Hepatol:无肝纤维化HBeAg阴性患者能停用替诺福韦酯吗?

2017-11-28 顾歆纯 环球医学

替诺福韦酯(TDF)是一种新型核苷酸类逆转录酶抑制剂,近来有研究显示其有很强的抑制乙肝病毒(HBV)作用。2017年11月,发表在《J Hepatol》上的一项研究,考察了无肝纤维化HBeAg阴性患者中停用TDF治疗的可能性。

替诺福韦酯(TDF)是一种新型核苷酸类逆转录酶抑制剂,近来有研究显示其有很强的抑制乙肝病毒(HBV)作用。2017年11月,发表在《J Hepatol》上的一项研究,考察了无肝纤维化HBeAg阴性患者中停用TDF治疗的可能性。

背景&目的:目前慢性乙肝尚未有病毒学治愈,但干扰素类似物(NA)治疗能成功地抑制HBV DNA的复制,并且在许多病例中,HBsAg会消失。停用NA治疗常常会导致病毒复发,因此通常需终身治疗。这项研究调查了HBeAg阴性患者中停用TDF治疗的可能性。

方法:接受TDF≥4年,抑制HBV DNA≥3.5年无肝纤维化的HBeAg阴性患者,被随机分配至停用(n=21)或继续(n=21)TDF单药的治疗中。在治疗和治疗后随访期间,开展标准实验室检测包括HBV DNA病毒载量、HBsAg和丙氨酸转氨酶(ALT)检测,不良事件报道,共144周。

结果:在停用TDF治疗的患者中,62%(n=13)仍未接受治疗直至144周。这组的中位HBsAg变化是?0.59 log10 IU/ml(范围是?4.49至0.02 log10 IU/ml),相比较,继续TDF治疗的患者是0.21 log10 IU/ml。4名患者(19%)达到HBsAg消失。停止治疗的患者开始时病毒载量和ALT出现波动,但是,在144周时,43%(n=9)达到HBsAg消失或HBV DNA<2000 IU/ml。停止TDF治疗未出现预期外的安全问题。

结论:这项对照研究证实了无肝纤维化的HBeAg阴性患者停止长期TDF治疗可能达到HBsAg消失和/或持续病毒反应。

总结:NA通常是HBV患者的终身疗法。这项随机对照研究调查了HBeAg患者停止替诺福韦酯(TDF)的治疗。在停止TDF治疗的患者中,62%在144周时仍停止治疗,其中43%的患者达到HBsAg消失或HBV DNA<2000 IU/ml。这为无肝纤维化患者在严格监督下停止NA治疗达到长期HBV抑制提供了潜在的可能性。试验注册号:NCT01320943。

原始出处:
Berg T, Simon KG, Mauss S, et al.Long-term response after stopping tenofovir disoproxil fumarate in non-cirrhotic HBeAg-negative patients - FINITE study.J Hepatol. 2017 Nov;67(5):918-924. doi: 10.1016/j.jhep.2017.07.012. Epub 2017 Jul 21.

原始出处:

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    2017-11-30 xiaoshitou
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