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Trial of Safe Water Storage Among People Living With HIV

Randomized Controlled Trial of Safe Water Storage Among People Living With HIV

Environmental health-related pathogens include faecal-oral, diarrhoeagenic microbes that may be transmitted via drinking water and are related to sanitation and hygiene. Previous research has suggested that safeguarding household drinking water against recontamination may be a critical intervention that can reduce risks of diarrheal diseases and may be especially important for people living with HIV/AIDS (PLWHA) and other vulnerable populations (Clasen et al. 2007). The investigators propose here a randomised, controlled trial of a household safe storage container for drinking water in a well defined, HIV-impacted population in peri-urban Lusaka, Zambia. After a baseline data collection period (9 months) half of all households (150 households) will be given a safe water storage container specifically designed to prevent recontamination of water in household use. All households will be followed for an additional 9 months. Results of this study will help determine whether this promising water quality intervention can reduce diarrhoea and related outcomes in this and similar vulnerable populations.

研究概览

详细说明

Specific Aim #1: To assess environmental health-related risk and outcomes in a low income peri-urban area of Zambia with a high percentage of people living with HIV/AIDS (PLWHA) (longitudinal observational cohort study and baseline) (Year 1). We will assemble a rich dataset on environmental health-related risk factors in a well defined population, with a focus on household drinking water quality and other water, sanitation, and hygiene (WSH) exposures.

Specific Aim #2: To quantify the WSH-related disease burden among PLWHA, compared with those without HIV/AIDS (individual and household level stratification) (conclusion of baseline). After nine months of data collection, we will perform an initial analysis to determine WSH-related risk by HIV status.

Specific Aim #3: To assess the impact of a water quality intervention on the longitudinal prevalence of Highly Credible Gastrointestinal Illness (HCGI) among PLWHA (randomized controlled trial, year 2). We will conduct a randomised, controlled trial of a safe water storage intervention. We will assess the health impacts of this intervention, with particular focus on the high-risk groups of PLWHA and children under 5 years of age.

研究类型

介入性

注册 (预期的)

1600

阶段

  • 不适用

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

      • Lusaka、赞比亚
        • Tropical Gastroenterology and Nutrition Group (TROPGAN), University of Zambia School of Medicine

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

  • 孩子
  • 成人
  • 年长者

接受健康志愿者

是的

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Resident of Misisi compound, Lusaka
  • Willing to participate in the study
  • Is able to give informed consent and does so
  • Household has one or more children who are aged 48 months or less at the start of the trial
  • The household stores drinking water in the home

Exclusion Criteria:

  • Not a resident of Misisi compound, Lusaka
  • Unwilling to participate in the study
  • Unable to give informed consent or chooses not to participate
  • Household does not have one or more children aged 48 months or less at the start of the trial
  • The household does not store drinking water in the home

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

  • 主要用途:预防
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:Safe storage device
This arm will be assigned a safe water storage device.
This device is a specially designed water storage container that is intended to reduce the likelihood of re-contamination of household stored drinking water.
无干预:Control
This arm of the trial will receive nothing until the end of the trial.

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
Self-reported diarrheal disease
大体时间:18 months
Self-reported diarrheal disease information will be collected from each study participant monthly. These data will be collected monthly with 24 hour, 48 hour, and 7-day recall. Data will be assessed at 18 months (change from baseline).
18 months

次要结果测量

结果测量
措施说明
大体时间
Weight-for-age z-score
大体时间:18 months
Weight-for-age z-scores will be taken for all children who are aged less than 48 months ("under 5s") at the start of the trial and monthly during the trial. These data are useful in tracking short-term wasting, associated with diarrheal disease events. Data will be assessed at 18 months (change from baseline).
18 months
E. coli and total coliforms in household drinking water
大体时间:18 months
Microbiological indicators of fecal contamination of drinking water at the household level. Samples will be taken from all households monthly. Data will be assessed at 18 months (change from baseline).
18 months
Salivary antibody response
大体时间:18 months
We will collect salivary samples from all consenting individuals (an additional consent form is required) to gather information on IgG and IgA response to specific diarrheal pathogens using a multiplex assay. This measure provides useful information on both outcomes of interest (diarrheal disease) and exposure to diarrheagenic pathogens. Samples will be taken at three time points: the beginning, midpoint, and end of the trial. Data will be assessed at 18 months (change from baseline).
18 months

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:Joe Brown, PhD、London School of Hygiene and Tropical Medicine

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8月1日

初级完成 (预期的)

2013年8月1日

研究完成 (预期的)

2013年8月1日

研究注册日期

首次提交

2011年6月14日

首先提交符合 QC 标准的

2011年6月17日

首次发布 (估计)

2011年6月20日

研究记录更新

最后更新发布 (估计)

2011年6月20日

上次提交的符合 QC 标准的更新

2011年6月17日

最后验证

2011年6月1日

更多信息

与本研究相关的术语

其他研究编号

  • QA308

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.

Safe storage device的临床试验

3
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