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Register:	ISRCTN
Last refreshed on:	24 August 2021
Main ID:	ISRCTN11717387
Date of registration:	26/04/2018
Prospective Registration:	No
Primary sponsor:	Taipei Medical University
Public title:	Does a free trial approach increase purchase and use of the water purification product Klorfasil in rural Haiti?
Scientific title:	Does a free-trial approach increase purchase and use of a water purification product in rural Haiti? A cluster randomized control trial.
Date of first enrolment:	01/05/2016
Target sample size:	500
Recruitment status:	Completed
URL:	https://www.isrctn.com/ISRCTN11717387
Study type:	Interventional
Study design:	Single-blinded cluster randomized control trial (Prevention)
Phase:	Not Applicable

Countries of recruitment
Haiti

Contacts

Name:
Address:
Telephone:
Email:
Affiliation:

Name:	Feng-jen Tsai
Address:	250 Wu-Hsing Street, Taipei City, 110, TAIWAN 110 Taipei Taiwan
Telephone:	66382736
Email:	jeanfjtsai@tmu.edu.tw
Affiliation:

Key inclusion & exclusion criteria

Inclusion criteria:
1. Aged 18 years and over
2. Never used Klorfasil or another household water treatment product before (with the exception of Aquatabs)

Exclusion criteria:
1. Under the age of 18 years
2. Used Klorfasil or another water purification product before

Age minimum:
Age maximum:
Gender: Both

Health Condition(s) or Problem(s) studied

Water purification using chlorination to prevent diarrhea
Infections and Infestations
Infectious diarrhea

Intervention(s)

We enrolled households from villages in Thomassique, Haiti, to evaluate purchase and water treatment outcomes over 6-months of follow-up. Clusters of households were randomized to free trial (intervention) or cost-sharing group (control). Households were surveyed and informed of the importance of treating their water and then offered to purchase Klorfasil. Households in the intervention group were given 30 days free use of Klorfasil before deciding to purchase. Households that purchased Klorfasil were followed up 30, 60, and 180 days after baseline survey.

Primary Outcome(s)

Decision to purchase Klorfasil at baseline and 180 days

Secondary Outcome(s)

Residual free chlorine (RFC) levels of stored drinking water at baseline and 30, 60, and 180 days after baseline. Water with RFC levels of 0.5 mg/l and above is deemed "treated" while water with RFC<0.5 mg/l is deemed "untreated"

Secondary ID(s)

N201603084

Source(s) of Monetary Support

investigator initiated and funded

Secondary Sponsor(s)

Ethics review

Status:
Approval date:
Contact:

Taipei Medical University Joint Institutional Review Board, 20/04/2016, TMU IJIRB No. N201603084

Results

Results available:	Yes
Date Posted:
Date Completed:	31/05/2017
URL:

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