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Insecticidal School Uniforms for Dengue Prevention in Thailand (DengueTools)

This study has been terminated.
(Insecticidal treatment of school uniforms did not last through a dengue season)
European Union
Information provided by (Responsible Party):
Peter Byass, Umeå University Identifier:
First received: March 16, 2012
Last updated: August 31, 2015
Last verified: August 2015

March 16, 2012
August 31, 2015
March 2012
June 2013   (final data collection date for primary outcome measure)
insecticide:placebo incidence rate-ratio (per 1,000 person-years) of laboratory-confirmed dengue cases in school-aged children [ Time Frame: up to 2 years ] [ Designated as safety issue: No ]
Schools are cross-over randomised to insecticide-treated or untreated (placebo) school uniforms, and so the primary outcome is the rate-ratio of dengue fever cases in school children, compared between these two groups.
Same as current
Complete list of historical versions of study NCT01563640 on Archive Site
comparison between intervention and placebo groups of number of serious skin reactions to insecticide-treated uniforms [ Time Frame: up to 2 years ] [ Designated as safety issue: Yes ]
Same as current
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Insecticidal School Uniforms for Dengue Prevention in Thailand
Can Insecticide-treated School Uniforms Reduce Dengue Infections in School-aged Children in Thailand
This is a randomised controlled trial that will be conducted in eastern Thailand in a group of schools with approximately 2,000 students aged 7-15 years. Pre-fabricated school uniforms will be commercially treated to ensure consistent high quality of insecticide impregnation with permethrin. A double-blind randomised cross-over trial at the school level will cover two dengue transmission seasons.
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Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Crossover Assignment
Masking: Double Blind (Subject, Caregiver, Outcomes Assessor)
Primary Purpose: Prevention
  • Other: permethrin insecticide
    commercial permethrin insecticide impregnation of clothing before transmission season
  • Other: washing
    normal washing of school uniforms, without permethrin insecticide impregnation
  • Placebo Comparator: normal school uniforms
    washing only
    Intervention: Other: washing
  • Experimental: insecticide-treated school uniforms
    washing and insecticide treatment
    Intervention: Other: permethrin insecticide
Wilder-Smith A, Byass P, Olanratmanee P, Maskhao P, Sringernyuang L, Logan JG, Lindsay SW, Banks S, Gubler D, Louis VR, Tozan Y, Kittayapong P. The impact of insecticide-treated school uniforms on dengue infections in school-aged children: study protocol for a randomised controlled trial in Thailand. Trials. 2012 Nov 15;13:212. doi: 10.1186/1745-6215-13-212.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
December 2014
June 2013   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • pupils in participating schools

Exclusion Criteria:

  • skin sensitivity, exema
7 Years to 15 Years   (Child)
Contact information is only displayed when the study is recruiting subjects
Not Provided
Not Provided
Peter Byass, Umeå University
Umeå University
European Union
Principal Investigator: Annelies Wilder-Smith, MD Umeå University
Umeå University
August 2015

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP