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CompletedNCT01998282Updated Mar 13, 2017

Evaluation of a Project to Distribute Water Filters and Cook Stoves in Western Rwanda--Phase 1B

An observational study in Focus of Study is to Assess Filter and Stove Use and Efficacy in Reducing Exposure to Waterborne and Airborne Pathogens, sponsored by London School of Hygiene and Tropical Medicine. Completed at 1 site in Rwanda. Per ClinicalTrials.gov, last updated 2017-03-13.

Sponsored by London School of Hygiene and Tropical Medicine · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
1,035
Sex
All
01

Study summary

DelAgua Health and Development, Manna Energy and the Rwanda Ministry of Health are collaborating on a project financed by carbon credits that will distribute household-based water filters and high-efficiency cook stoves to approximately 600,000 households in Rwanda. Prior to the full roll out of the campaign, the implementers are conducting research in connection with a distribution among 2000 households in western Rwanda. The objective of this matched cohort study (Phase 1B)are to investigate whether the filters and stoves delivered in October 2012 are still performing and in use, to determine whether they are associated with reductions in exposure to pathogens from drinking water and stoves, and to assembly information on health and other conditions necessary for the design of a large scale health impact evaluation.

02

Conditions studied

  • Focus of Study is to Assess Filter and Stove Use and Efficacy in Reducing Exposure to Waterborne and Airborne Pathogens

Keywords

  • Focus of study is to assess filter/stove use and efficacy in reducing exposure to waterborne and airborne pathogens.
03

In context

Lead sponsor

London School of Hygiene and Tropical Medicine is the lead sponsor of 296 studies on the registry; 15 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Lower income (ubudehe groups 1 and 2) householders from 18 villages (9 intervention and matched controls) in 11 designated Districts in Rwanda: Rutsiro, Karongi, Ngororero, Nyamasheke, Nyabihu Districts of Western Province (excluding part of the district to the north of the Ruhengeri road); Rubuvu District (excluding part of the district to the north of the Ruhengeri road); Nyaruguru, Nyamagabe, Muhanga, and Ruhango Districts in Southern Province; Gakenke District in Northern Province.

Eligibility criteria

Households will be eligible to participate in the study if they reside in selected villages and are willing to participate after receiving complete details regarding the study. Intervention households must have a functioning stove and water filter in order to participate, though they do not need to be in regular use. We will enroll all households with a child under 5 years of age if they are in Ubudehe groups 1 or 2.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
1,035 participants (actual)
Patient registry
No

Groups and cohorts

  • Household water filter and improved cook stove

    Vestergaard-Frandsen LifeStraw Family 2.0 filter and Ecozoom stove

  • Control

    Traditional water management practices and cooking stoves

06

What researchers measure

Primary outcomes

  1. Personal exposure to PM2.5 and CO (mg/m3)

    PM2.5 and CO concentrations will be measure in mg/m3 and reported as the mean concentration over 48 hours.

    Time frame: 10 months

Secondary outcomes

  1. Thermotolerant coliforms (TTC) in colony forming units (CFU) per 100ml of sample water

    TTC will be measured as the total number of colony forming units (CFU) of TTC in the water sample and will be reported as number of CFU per 100ml of sample water.

    Time frame: 10 months

Other outcomes

  1. Blood pressure

    Time frame: 10 months

  2. Blood pressure covariates

    Time frame: 10 months

  3. Use of filter and stove

    Time frame: 10 months

  4. Exposure to PM2.5 and CO in primary cooking areas (mg/m3)

    PM2.5 and CO concentrations during the 48 hour sampling period

    Time frame: 10 months

07

Study locations

1 site
  • DelAgua Health Rwanda
    Kigali, PO Box 1594, Rwanda
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 13, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01998282
Lead sponsor
London School of Hygiene and Tropical Medicine
Collaborators
Ministry of Health, Rwanda, DelAgua, Portland State University, University of Colorado, Boulder
Responsible party
Thomas Clasen (Reader in Water, Sanitation and Health, London School of Hygiene and Tropical Medicine) — Principal investigator
First posted
Nov 28, 2013
Start date
Oct 2013
Primary completion
Dec 31, 2016
Completion
Dec 31, 2016
Last update
Mar 13, 2017

Study contacts

Thomas F Clasen, PhD
principal investigator · London School of Hygiene and Tropical Medicine

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.

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