ILC 2016:NVR 3-778可安全地降低慢性乙型肝炎患者的HBV DNA的水平

2016-04-17 MedSci MedSci原创

据国际肝脏会议上一项新的报道显示,乙型肝炎病毒核心的抑制剂——NVR 3-778,可安全地减少慢性乙型肝炎病毒感染患者的HBV DNA的水平。

据国际肝脏会议上一项新的报道显示,乙型肝炎病毒核心的抑制剂——NVR 3-778,可安全地减少慢性乙型肝炎病毒感染患者的HBV DNA的水平。

“目前还没有正式命名这种药物,但是它是第一类抑制剂,” 来自香港大学的胃肠病学和肝脏病学主席Man-Fung Yuen教授在会议中介绍道,“到现在为止,我们并没有很好的药物可以去除患者体内病毒。……而这个药物却是很特别的,因为它可以攻击病毒。”

Yuen及其同事对64名HBV患者使用了NVR 3-778,治疗28天。共分了六个剂量组,包括每日100毫克治疗;每日200毫克治疗;每日400毫克治疗;600毫克治疗,每日两次;600毫克,每日两次,并联合聚乙二醇干扰素治疗;聚乙二醇干扰素联合安慰剂。治疗过程中,患者对NVR 3-778的耐受性良好,没有患者停止治疗。

结果发现,治疗后患者体内的HBV DNA水平降低,NVR 3-778联合聚乙二醇化干扰素治疗组患者体内的HBV DNA水平降低的最大(1.97 log IU/mL)。仅使用NVR 3-778治疗的患者中,600毫克治疗组患者体内HBV DNA的水平减少1.72 log10 IU/ml在,仅使用聚乙二醇干扰素治疗组患者体内HBV DNA的水平减少1.06 log10 IU/ml。

大部分患者并未出现严重不良事件,且大部分不良反应事件的程度较轻,并不能归因于NVR 3-778的使用。正如研究人员预期的结果一样,聚乙二醇干扰素治疗的患者并没有出现因聚乙二醇干扰素的使用而出现的不良反应。

此外,研究者还观察到NVR 3-778联合聚乙二醇干扰素治疗的患者血清乙型肝炎e抗原水平的早期减少0.21 log10 IU/ml,仅使用聚乙二醇干扰素治疗的患者则减少了0.27 log10 IU/ml,仅使用NVR 3-778治疗的患者减少了0.33 log10 IU/ml。

先前的1期试验研究结果也表明NVR 3-778可降低四组患者血清HBV DNA的水平。

EASL理事会成员Frank Tacke博士说,“这项研究的结果在乙型肝炎患者的治疗上是非常有前景的。医学界一直在寻求可以治愈乙型肝炎的治疗方法,而不是简单地抑制病毒的复制。”但是,需要更多的研究来确认该药物是否真的能够改变目前的治疗策略。

有关VR3-778

VR3-778是一种HBV核心蛋白抑制剂,在体外抗HBV活性类似于强效核苷(酸)。我们报告了NVR3-778的剂量范围首次临床Ia期研究,完成于2014年7月。NVR3-778口服给药在所有剂量水平(50-800mg)耐受性均良好。 PK结果表明,每日一次200mg剂量可提供足够的NVR3-778浓度来延长CHB患者的HBV抑制。 NVR3-778目前已经进展到HBV患者的1b期试验。

原始出处:

Melinda Stevens. NVR 3-778 safely reduces HBV DNA in chronic HBV patients. Healio, April 16, 2016.

Yuen M-F, et al. Abstract LB06. Presented at: International Liver Congress; April 13-17, 2016; Barcelona.

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    2017-01-04 klivis
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    2016-04-19 李继凯

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