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Double-blinded Trial of Household-based Chlorination in India

Household-based Chlorination of Drinking Water to Prevent Diarrhoeal Disease: a Randomized, Placebo-controlled Trial in India Using Sodium Dichloroisocyanurate (NaDCC) Tablets

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01202383
Enrollment
2163
Registered
2010-09-15
Start date
2010-10-31
Completion date
2011-12-31
Last updated
2013-06-19

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

Conditions

Diarrhoea

Brief summary

The proposed study is a 12-month double-blinded, randomized, placebo-controlled trial to determine if the impact of treating water with chlorine at the household level is effective in preventing diarrhea among young children. For more than a century, chlorine has be used to treat water in municipal systems in developed countries. Lack of infrastructure has prevented its use in lower-income settings. NaDCC is a tablet form of chlorine that has been used for more than 30 years in emergencies and has recently been approved for routine treatment of drinking water by the WHO and US Environmental Protection Agency. The placebo will consist of the food-grade ingredients in the effective tablet, without the chlorine. Study participants will be supplied with tablets (intervention or placebo) and instructed to use the same to treat their water daily. Monthly follow-up visits will assess diarrhoea morbidity and weight-for-age Z scores in \<5s. Chlorine residual and bacteriological quality of water stored in the home will be measured each month. The study will also assess the impact of the intervention on absenteeism from school and work and on health care expenditure for diarrhoea.

Interventions

BEHAVIORALHousehold-based water treatment with NADCC tablets

Study participants will be supplied with tablets and encouraged to use them for treating their water daily

BEHAVIORALHousehold-based water treatment with placebo tablets

Study participants will be supplied with tablets and encouraged to use them for treating their water daily

Sponsors

Population Services International
CollaboratorOTHER
Partners for Affordable Technologies in Health
CollaboratorUNKNOWN
United States Agency for International Development (USAID)
CollaboratorFED
Chemical Council of America
CollaboratorUNKNOWN
Medentech
CollaboratorINDUSTRY
Indian Institute of Health Management Research
CollaboratorUNKNOWN
London School of Hygiene and Tropical Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

Approximately 2000 households with children \<5 will be enrolled. Inclusion Criteria: * Households with at least one child\< 5 * Male and female head of household consent to participate * Reside permanently in study area

Design outcomes

Primary

MeasureTime frameDescription
diarrhoea morbiditymonthly visits for 12 monthsdiarrhoea will be recorded among \<5s and all ages

Secondary

MeasureTime frameDescription
weight for age Z-scoremonthly visits for 12 monthsweight will be measured among \<5s
bacteriological water quality in household storage containermonthly visits for 12 months
residual chlorine in household storage containermonthly visits for 12 months
absenteeism from school and workmonthly visits over 12 months
health care expenditure for diarrheaOne time visit

Countries

India

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026