- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01082107
Solar Disinfection of Drinking Water (SODISWATER)
Solar Disinfection of Drinking Water for Use in Developing Countries or in Emergency Situations
SODISWATER is a European Union funded health impact assessment study investigating the effect of sunlight to inactivate microbial pathogens in drinking water. This study was done by observing whether children younger than 5 years old who drink solar disinfected water were healthier than those who did not. Health was measured by how often the children had diarrhoea.
Participants were given plastic bottles to place in the sun, water samples were then collected from these plastic bottles to be analyzed. They were also requested to fill in diarrhea diaries.
TESTABLE RESEARCH HYPOTHESES:
Health Impact Assessment: Children who use solar disinfected water will have:
(a) lower morbidity due to non-bloody diarrhoea and bloody diarrhoea (c) increased growth rates (d) lower mortality (e) increased family productivity (f) decreased care-giver burden (g) increased school attendance
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The current evidence base for solar disinfection in the prevention of diarrhoeal disease in children rests on three published studies. All share two significant weaknesses: all were carried out in Kenya, in communities which have very high incidences of diarrhoeal disease and water characterised by high levels of both turbidity and microbial contamination. Furthermore, neither of the studies of diarrhoeal disease distinguished between dysentery (associated with significant risk of mortality) and other sorts of diarrhoea, which carry a far lower risk. The present study will extend the evidence base into communities at lower risk and with higher water quality. Furthermore, by using pictorial diaries, dysentery can be analysed as a specific health endpoint. Diarrhoea will be recorded consistent with the World Health organisation definition: three or more loose or watery stools in a 24-hour period and/or stools containing blood or mucus.
AIM OF THE PROJECT IN RELATION TO HEALTH IMPACT ASSESSMENT STUDIES:
The primary aim of the SODISWATER PROJECT is to demonstrate that SODIS is an appropriate intervention against diarrhoeal and waterborne disease among communities in developing countries and those affected by natural or man-made disasters by conducting multi-centred epidemiologically controlled Health Impact Assessments of the SODIS technique across the African Continent under a variety of social, geographical and climactic conditions.
SCIENTIFIC OBJECTIVES OF SODISWATER IN RELATION TO HEALTH IMPACT ASSESSMENT STUDIES:
- Assessment of the change in health reasonably attributed to the provision of solar disinfected drinking water at the point of use in four African countries
- Assessment of the relationship between solar disinfected drinking water and selected health indicators (including morbidity due to non-bloody diarrhoea and dysentery, weight loss, mortality, growth rates, productivity, care-giver burden, and school attendance. Mortality will also be monitored but the sample sizes are of insufficient size to produce detailed information and scaling up, to account for this is not possible due to prohibitive costs).
- Demonstration of the effectiveness of SODIS at household level.
- Assessment of gender specific issues.
- Demonstration of the degree of acceptance/ compliance of SODIS as a disinfection method.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Gauteng
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Pretoria, Gauteng, South Africa, 0001
- Council for Scientific and Industrial Research (CSIR)
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Presence of one or more children aged less than 5 years in the household
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Solar disinfection of drinking water
|
Participants in the study drink solar disinfected (SODIS) water.
Solar disinfected water is water (> 3 L) that has been placed in direct sunlight for 6 hours.
Participants are expected to drink SODIS treated water for the duration of the study.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Reduction in dysentery and non-dysentery diarrhoeal disease in children under five years old
Time Frame: Duration of the study
|
The method comprises pictorial or smiley diaries that record diarrhoea consistent with the World Health Organisation definition: three or more loose or watery stools in a 24-hour period and/or stools containing blood or mucus.The smiley diary allows a person to note any diarrhoeal episodes themselves on a recording form on a daily basis.
The happy face is marked by the parent or carer when the child passes a normal stool.
If a loose or watery stool is passed by the child, one of the sad faces is marked, and if the child passes blood or mucus in his or her stools the special box is marked.
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Duration of the study
|
Collaborators and Investigators
Investigators
- Principal Investigator: Kevin G McGuigan, PhD, Royal College of Surgeons, Ireland
Publications and helpful links
General Publications
- Conroy RM, Elmore-Meegan M, Joyce T, McGuigan KG, Barnes J. Solar disinfection of drinking water and diarrhoea in Maasai children: a controlled field trial. Lancet. 1996 Dec 21-28;348(9043):1695-7. doi: 10.1016/S0140-6736(96)02309-4.
- Conroy RM, Meegan ME, Joyce T, McGuigan K, Barnes J. Solar disinfection of water reduces diarrhoeal disease: an update. Arch Dis Child. 1999 Oct;81(4):337-8. doi: 10.1136/adc.81.4.337.
- Conroy RM, Meegan ME, Joyce T, McGuigan K, Barnes J. Solar disinfection of drinking water protects against cholera in children under 6 years of age. Arch Dis Child. 2001 Oct;85(4):293-5. doi: 10.1136/adc.85.4.293.
- Du Preez M, Mcguigan KG, Conroy RM. Solar disinfection of drinking water in the prevention of dysentery in South African children aged under 5 years: the role of participant motivation. Environ Sci Technol. 2010 Nov 15;44(22):8744-9. doi: 10.1021/es103328j.
Study record dates
Study Major Dates
Study Start
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- EU 031650
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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