对纳塔利祖马布的抗JC病毒测试的测试间的变异性:西班牙队列
Luis Fernández Espigares1, Alicia Fernández Panadero1, María Díaz Sánchez2
1Department of Neurology, Hospital Universitario Virgen del Rocío, Sevilla, Spain.
Multiple sclerosis and related disorders
|January 25, 2026
概括
精确的抗JC病毒 (JCV) 抗体检测对于管理纳塔利祖马布治疗的患者至关重要. 免疫WELLTM和STRATIFYJCVTM测定显示出显著的变异性,特别是对于低抗体水平,影响PML风险分层.
科学领域:
- 神经学 神经学
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
背景情况:
- 准确的抗JC病毒 (JCV) 抗体检测对于接受纳塔利祖马布的患者的渐进多焦点白内障 (PML) 风险分层至关重要.
- 纳塔利祖马布治疗需要对PML进行仔细监测,这是由JCV引起的严重脱髓化疾病.
研究的目的:
- 为了评估ImmunoWELLTM JCV IgG和STRATIFYJCVTM DxSelectTM之间用于JCV抗体测试的试验间一致性.
- 为了比较两个JCV抗体测试在PML风险类别分类中的性能.
主要方法:
- 一项涉及48名多发性硬化症患者接受纳塔利祖马布治疗的回顾性横截面研究.
- 使用ImmunoWELLTM和STRATIFYJCVTM两种测定方法对血清样本进行分析.
- 基于抗体指数值的二元血清状态和顺序风险类别 (负,低,中,高) 的比较.
主要成果:
- STRATIFYJCVTM检测到4.2%的JCV阳性,而ImmunoWELLTM检测到33.3%,这是八倍的差异.
- 总体二进制协议为66.7%,具有实质性的方向不一致性 (p = 0.0005).
- 大多数差异涉及从负面到低/中等风险类别的上升重新分类;保持高风险地位协议.
结论:
- 在ImmunoWELLTM和STRATIFYJCVTM之间存在显著的测试间变异性,特别是影响低抗体指数值.
- 虽然在高风险值下达成一致,但建议谨慎解释ImmunoWELLTM结果.
- 需要进一步的病毒学验证来澄清差异,并确保准确的PML风险评估.
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