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SAFEWATER Health & Behaviour Impact Field Trials; Mexico

The Health and Behavioural Impact of Implementing SAFEWATER Systems for Drinking Water Disinfection Within Rural Communities in Colombia and Mexico; Mexico

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04736615
Enrollment
200
Registered
2021-02-03
Start date
2021-03-01
Completion date
2022-04-30
Last updated
2021-10-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Water-Related Diseases

Keywords

Water, sanitation and hygiene (WASH), Water disinfection, Behavior change, Stunting, Gut integrity, Malnutrition, Clean water technology, Diarrhoea, Child growth

Brief summary

At least 1.8 billion people globally use a source of drinking water that is faecally contaminated and thus likely to lead to diarrheal illness: nearly 1,000 children die each day due to water and sanitation-related diarrhoeal diseases. Diseases related to the consumption of contaminated drinking-water place a major burden on human health. In 2017, 785 million people still lacked access to an improved drinking water source, and these are mostly the poor and marginalised. Almost a quarter of those people rely on surface water that is untreated and over 90% live in rural areas. Many people are forced to rely on sources that are microbiologically unsafe, leading to a higher risk of contracting waterborne diseases, including typhoid, hepatitis A and E, polio and cholera. The objectives of the SAFEWATER project is to develop technologies to provide clean water to economically deprived communities in rural Colombia and Mexico. These water technologies will be tested under real conditions with the cooperation of the rural communities. The SAFEWATER field trials aims to evaluate the health and behaviour impacts of implementing SAFEWATER water treatment technologies for drinking water disinfection, with a behavioral change intervention, within rural communities in Colombia and Mexico The project has three specific objectives: 1. Assess water quality improvement at household level 2. Assess behaviors and test behavioral interventions 3. Assess child growth and related health outcomes Three communities in Colombia and one community in Mexico were recruited to take part in the study. Communities were selected based on factors such as current availability of clean water, accessibility, safety, community size and current activities within the communities. Pilot and feasibility studies were carried out prior to commencing field trials, thus the design of the trials vary across countries. Mexico field trial: The trial in Mexico will use a stepped-wedge design, randomized at household level over a 12-month period (6-12 steps dependent on adherence and feasibility). All households (max n200) willing to be involved will be recruited (separate clinicaltrials.gov registration). Colombia field trial: the trial in Colombia will use a non-randomized parallel design (2:1; intervention:control). A maximum of 84 households (54:30; intervention:control) will be recruited to take part, with families with young children (\<12 years) prioritized. Outcomes for both countries will include 1) water quality, 2) water-related behaviour (e.g. frequency of system use, uses of treated / raw water), and 3) health, e.g. diarrhoea prevalence, growth (height/weight), school attendance, water insecurity status, gut integrity. Impact: The development and deployment of the SAFEWATER technology has the potential to impact on clean drinking water access for participating communities in Mexico and Colombia and subsequently on the health and wellbeing of those individuals involved. Additionally if successful, the work will also provide an evidence based model for the provision of improved access to clean drinking water for rural communities in developing regions more widely.

Interventions

A domestic water purification technology, consisting of a raw water storage tank, a pump, a filtration unit (2 cartridge filters), a UVC disinfection unit (UV lamp), a storage tank for drinking water (treated and safe water), and a distribution network inside the house for drinking water.

BEHAVIORALBehavior change interventions

Targeting behaviors around the use of the technology and water more generally. Behavioral interventions will be data-driven (i.e., dependent on the problems that arise) but are likely to include household and community-level activities.

Sponsors

Fundación Cántaro Azul, A.C. (NGO), Mexico
CollaboratorUNKNOWN
Centro de Ciencia y Tecnologia de Antioquia (CTA) (NGO), Colombia
CollaboratorUNKNOWN
Universidad de Medellin, Colombia
CollaboratorUNKNOWN
University of Sao Paulo
CollaboratorOTHER
University of Ulster
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

Stepped-wedge design, steps: 1 month

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Communities in rural communities without access to clean water systems * Households where the head of the household fully understands the study information provided and is willing to provide consent. * Households where it is feasible to install the SAFEWATER system Priority Criteria (Colombia only): 1. Having at least one child of 12 years or under in the household 2. Having previously worked with Universidad de Medellin or CTA (criteria #2 will only be implemented if households meeting #1 is exhausted)

Design outcomes

Primary

MeasureTime frameDescription
Water qualityChange over 12 monthsMicrobial load and turbidity (measured using a turbidimeter (NTU units)
Use of safe waterChange over 12 monthsFrequency and practices for drinking, hygiene and cooking
Child (12 years and under) growthChange over 12 monthsChange in BMI percentile to identify stunting, wasting and underweight

Secondary

MeasureTime frameDescription
Handwashing with soapChange over 12 monthsFrequency
Fetching waterChange over 12 monthsFrequency
Sharing of safe water to external householdsChange over 12 monthsIntervention group only
Diarrhoea prevalenceChange over 12 monthsBristol Stool Chart
School attendanceChange over 12 monthsAbsence (days)
Untreated water usageChange over 12 monthsFrequency and practices for drinking, hygiene and cooking
Gut integrityChange over 12 monthsFingerprick test for iron levels in a sub-group of children as a proxy marker of improved gut integrity.
Maintenance to SAFEWATER systemChange over 12 monthsFrequency and nature of maintenance; Intervention group only
Satisfaction of SAFEWATER systemChange over 12 monthsLevel of satisfaction for system and water provided
Making unplanned changes to the systemChange over 12 monthsMaking changes for functional or aesthetical reasons which could potentially interfere with the functioning of the system - intervention group only
Study retention / participationChange over 12 monthsIntervention group only
Household water insecurity statusChange over 12 monthsThe Household Water Insecurity Experiences (HWISE) Scale (scores 0-36 (higher scores indicate greater insecurity))
Use of the systemChange over 12 monthsFrequency and practices; intervention group only
Water storage practicesChange over 12 monthsFrequency and method

Countries

Colombia, Mexico

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026