Study of Subclinical Viral Infection
2012年6月7日 更新者:Jodi Smith、Seattle Children's Hospital
Subclinical Viral Infection and Renal Allograft Injury
Chronic allograft injury is the leading cause of graft loss in renal transplantation.
The shortage of available kidneys for transplantation has reached crisis levels with increasing numbers of waiting list mortalities.
Strategies to prolong graft survival are urgently needed.
The pediatric and young adult transplant population is one in which repeat transplantation is inevitable and therefore, this group is one who will especially benefit from intervention to prolong graft survival.
The hypothesis of this proposal is that subclinical viral infection is a modifiable risk factor in the pathogenesis of chronic allograft injury.
The young age of the proposed study population is an ideal one to evaluate this objective due to the high prevalence of seronegative recipients.
The studies outlined will determine the temporal relationship betWeween subclinical viremia, renal allograft infection and allograft injury.
This will be the first prospective study in renal transplant recipients to systematically monitor subclinical viral infection both in peripheral blood and in the renal allograft with concurrent quantitative measures of renal function, allograft fibrosis, and innate immune activation.
The investigators have chosen these 3 outcomes because they evaluate a spectrum of renal allograft injury and represent different stages - from early to late - in the pathophysiology that leads to renal allograft dysfunction.
In addition, the role of virus specific T cell immune responses in the control of subclinical viral infection and associated allograft injury will be determined.
These data are critical as they will provide insights into the pathogenesis of injury and will guide development of interventions strategies.
Importantly, the current treatment strategies for viral disease do not prevent subclinical viral infection.
Thus, the results of this study may identify that prevention, prophylaxis and/or treatment of subclinical viral replication as a long term strategy to prevent chronic allograft injury and prolong graft survival.
研究概览
研究类型
观察性的
注册 (预期的)
100
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。
学习地点
-
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Washington
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Seattle、Washington、美国、98105
- 招聘中
- Seattle Children's Hospital
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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
1年 至 25年 (孩子、成人)
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
Pediatric and young adult renal transplant recipients (1<25yrs) of their first kidney transplant from Seattle Children's Hospital and University of Washington Medical Center.
描述
Inclusion Criteria:
- Subject and/or parent guardian must be able to understand and provide informed consent or assent
- Male or Female, Seattle Children's Hospital participants must be 1-<21 yrs and University of Washington Medical Center participants 18-25yrs.
- Diagnosed with End Stage Renal Disease (ESRD)
Exclusion Criteria:
- Inability or unwillingness of subject and/or parent guardian to provide informed consent
- Pregnancy
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 |
---|---|---|
Change in measured GFR from baseline
大体时间:time of transplant, one time between months 3 and 6, and during months 12, and 24 after the transplant
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Single infusion of iohexol clearance to measure GFR
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time of transplant, one time between months 3 and 6, and during months 12, and 24 after the transplant
|
次要结果测量
结果测量 |
大体时间 |
---|---|
Change in interstitial fibrosis and tubular atrophy of renal allograft from baseline
大体时间:Renal biopsies will be performed at time of transplant, 3-6 m, 12m, and 24m post-transplant. Precise measures of renal function, allograft fibrosis, and innate immune activation will be performed at baseline, 6m, 12, 24m post-transplant.
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Renal biopsies will be performed at time of transplant, 3-6 m, 12m, and 24m post-transplant. Precise measures of renal function, allograft fibrosis, and innate immune activation will be performed at baseline, 6m, 12, 24m post-transplant.
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Change in innate immune activation of renal allograft from baseline
大体时间:6, 12, and 24 months after the transplant
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6, 12, and 24 months after the transplant
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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。
调查人员
- 首席研究员:Jodi Smith, MD、Seattle Children's 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
2011年10月1日
初级完成 (预期的)
2016年10月1日
研究完成 (预期的)
2016年10月1日
研究注册日期
首次提交
2012年6月6日
首先提交符合 QC 标准的
2012年6月7日
首次发布 (估计)
2012年6月8日
研究记录更新
最后更新发布 (估计)
2012年6月8日
上次提交的符合 QC 标准的更新
2012年6月7日
最后验证
2012年6月1日
更多信息
与本研究相关的术语
其他研究编号
- R01DK088914-01A1 (美国 NIH 拨款/合同)
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.