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HCV Reinfection in HD Patients Achieving SVR

2021年2月22日 更新者：National Taiwan University Hospital

Risk of Hepatitis C Virus Reinfection in Hemodialysis Patients With Chronic Hepatitis C Achieving Sustained Virologic Response Following Antiviral Therapy

Among the hemodialysis units, the global incidence of HCV infection ranges from 1.2% to 2.9%. Data regarding the long-term risk of reinfection among hemodialysis patients achieving SVR are limited. To our best knowledge, only one study assessed the long-term negativity of serum HCV RNA in hemodialysis patients who achieved SVR after IFN-based therapies. With a median follow-up of 48 months following SVR, the life-time cumulative survival for HCV RNA negativity was 86% among the 121 participants who were on maintenance dialysis. Furthermore, the life-time cumulative survival for HCV RNA negativity was 95% among the 45 participants who underwent renal transplantation from HCV-negative donors. Because the literatures regarding the long-term follow-up of viral outcome, the patient numbers to be recruited are still limited, and all studies are focused on IFN-based treatment, we aim to assess the long-term risk of HCV reinfection in hemodialysis patients attaining SVR by IFN-based or IFN-free therapies.

研究概览

地位

招聘中

条件

详细说明

Hepatitis C virus (HCV) infection is an important public health problem. Compared to the global prevalence of HCV infection to be around 1.0%, the prevalence of HCV infection in hemodialysis patients is around 10%. The high prevalence of HCV infection in hemodialysis patients receiving long-term renal replacement therapy may be reasoned by the nosocomial transmission in hemodialysis units. If chronic HCV infection is left untreated, the survival, hospitalization and the quality of life are significantly compromised in hemodialysis patients. In contrast, the survival is improved following successful treatment-induced HCV clearance Interferon (IFN)-based therapy is the treatment of choice for hemodialysis patients with HCV infection in earlier years. However, the treatment responses are far from ideal and the treatment-emergent adverse events (AEs) are frequently encountered, making the global treatment uptake rate by IFN-based therapies to be only 1.5%. Based on the excellent efficacy and safety, IFN-free direct acting antivirals (DAAs) have been the mainstay of therapy for HCV. Furthermore, the world health organization (WHO) has set the goal of global HCV elimination by 2030. The microelimination of HCV among hemodialysis patients is also listed as the prioritized target by WHO.

The updated definition of sustained virologic response (SVR) is the presence of serum undetectable HCV RNA level at week 12 after the stopping of antiviral therapy. However, the consensus in Taiwan mandates that hemodialysis patients who achieve SVR at off-therapy week 24 can be moved from HCV-segregated zone to cleat zone in hemodialysis unit, instead of the global definition of off-therapy week 12. The delay of bed-transfer from HCV-infective zone to clear zone might increase the risk of reinfection in hemodialysis patients achieving SVR. Therefore, we aim to assess the risk of short-term of HCV reinfection in hemodialysis patients achieving SVR at week 12 after antiviral therapy, which may be great relevance and importance for health policy making.

Among the hemodialysis units, the global incidence of HCV infection ranges from 1.2% to 2.9%. Data regarding the long-term risk of reinfection among hemodialysis patients achieving SVR are limited. To our best knowledge, only one study assessed the long-term negativity of serum HCV RNA in hemodialysis patients who achieved SVR after IFN-based therapies. With a median follow-up of 48 months following SVR, the life-time cumulative survival for HCV RNA negativity was 86% among the 121 participants who were on maintenance dialysis. Furthermore, the life-time cumulative survival for HCV RNA negativity was 95% among the 45 participants who underwent renal transplantation from HCV-negative donors. Because the literatures regarding the long-term follow-up of viral outcome, the patient numbers to be recruited are still limited, and all studies are focused on IFN-based treatment, we aim to assess the long-term risk of HCV reinfection in hemodialysis patients attaining SVR by IFN-based or IFN-free therapies.

研究类型

观察性的

注册 (预期的)

350

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

学习地点

  • 台湾
      • Douliu、台湾、640
        • 招聘中
        • National Taiwan University Hospital, Yun-Lin branch
        • 接触：
      • Taichung、台湾、40705
        • 招聘中
        • Taichung Veterans General Hospital
        • 接触：
      • Taichung、台湾、40447
        • 招聘中
        • China Medical University Hospital
        • 接触：
      • Taipei、台湾、100
        • 招聘中
        • National Taiwan University Hospital
        • 接触：
      • Taipei、台湾
        • 招聘中
        • Tri-Service General Hospital
        • 接触：
      • Taipei、台湾、110
        • 招聘中
        • Taipei Medical University Hospital
        • 接触：
      • Taipei、台湾、10629
        • 招聘中
        • Taipei City Hospital, Ren-Ai Branch
        • 接触：

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

20年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

取样方法

非概率样本

研究人群

Hemodialysis patients who undergo antiviral therapy for hepatitis C virus infection and who achieve sustained virologic response

描述

Inclusion Criteria:

  • Age old than 20 years old
  • Patients receiving hemodialysis during interferon (IFN)-based or IFN-free antiviral therapy
  • Patients achieving sustained virologic response (SVR), defined as undetectable serum HCV RNA at week 12 off-therapy

Exclusion Criteria:

  • Poor access to sites for venipuncture

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
累计再感染率
大体时间：通过学习完成，平均3年
从抗病毒治疗后病毒清除时间点到最后一次随访时间点，具有 HCV 病毒血症复发证据的参与者的时间依赖性累积比例
通过学习完成，平均3年

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

National Taiwan University Hospital

调查人员

  • 首席研究员：Chen-Hua Liu, MD、National Taiwan University Hospital

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2021年2月1日

初级完成 (预期的)

2024年2月1日

研究完成 (预期的)

2024年3月1日

研究注册日期

首次提交

2021年1月26日

首先提交符合 QC 标准的

2021年1月28日

首次发布 (实际的)

2021年2月1日

研究记录更新

最后更新发布 (实际的)

2021年2月24日

上次提交的符合 QC 标准的更新

2021年2月22日

最后验证

2021年2月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • 202012090RINC

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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