贝皮罗维尔森结合部位的单核酸多态性对慢性乙型肝炎治疗反应的影响有限
Jerome Bouquet1, Scott D Speer2, Alexander Koenig2
1GSK, South San Francisco, CA, USA.
Journal of hepatology
|January 16, 2026
概括
乙型肝炎病毒 (HBV) 中的单核酸多态 (SNP) 可能会影响新药的疗效. 大多数接受贝皮罗维森治疗的患者表现出HBsAg降低,即使是SNP,这表明抗药性最小.
科学领域:
- 乙型肝炎病毒 (HBV) 研究研究
- 抗病毒药物开发 抗病毒药物开发
- 基因组测序和分析
背景情况:
- 在乙型肝炎病毒 (HBV) 基因组中的单核酸多态 (SNP) 可以影响慢性HBV感染的抗病毒疗法的有效性.
- B-Clear研究 (NCT04449029) 调查了SNP在贝皮罗病毒结合部位中的作用.
研究的目的:
- 评估贝皮罗维尔森结合部位的基线和治疗出现的SNP的频率.
- 评估这些SNP与慢性HBV感染患者对贝皮罗病毒的病毒学反应之间的关联.
主要方法:
- 从基线测序HBVDNA,并选择B-Clear研究参与者的基线后样本.
- 使用下一代测序识别具有≥5%等位基频率的SNP.
- 在体外评估结合点SNP对病毒适应性和贝皮罗病毒敏感性的影响.
主要成果:
- 基线SNP在7%的参与者中被发现,与数量较小的HBsAg减少有关,但在一些人中暂时失去HBsAg.
- 在22%的分析样本中,在基线后发现了治疗出现的SNP.
- 在C1589ASNP显示最显著的降低 (4.1倍) 在bepirovirsen敏感性在体外.
结论:
- 大多数参与者实现了显著的HBsAg降低,有些人经历过渡性HBsAg损失,无论基线SNP.
- 虽然在基线SNP的参与者中观察到数量较小的减少,但需要进一步研究耐药性机制.
- 目前的发现表明,在接受贝皮罗维森治疗时,常规SNP测试的必要性是最小的,因为耐药性似乎是最小的和多因素的.
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