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Household-wide treatment for the control of head lice infestations in an impoverished community

Impact of household-wide treatment for the control of head lice infestations in an impoverished community: a randomised observer-blinded controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN42288908
Enrollment
132
Registered
2009-05-29
Start date
2007-02-01
Completion date
Unknown
Last updated
2015-01-13

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

Conditions

Active head lice infestation Infections and Infestations Pediculosis and phthiriasis

Interventions

Participants (sentinels) were recruted in a holiday resort outside the endemic area where another trial had taken place immediately before the study. While still in the holiday resort but immediately
Revectina®, Solvay Farma, Brazil) the day before the sentinels returned to their families. Treatment was repeated after 10 days. Household members of the control group remained untreated. A day after

Sponsors

Mandacaru Foundation (Brazil)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Children aged 5 - 15 years, either sex 2. Absence of active head lice infestation determined by diagnostic wet-combing 3. Written consent obtained from the study participants and carers

Exclusion criteria

Exclusion criteria: 1. Active head lice infestation during baseline examination (defined as the detection of at least one viable head louse or nymph after vigorous wet-combing) 2. Absence from the study area for more than a week 3. Unwillingess to participate in the study

Design outcomes

Primary

MeasureTime frame
The median infestation-free period, defined as the days between baseline and the first head lice positive examination during follow-up visits. A positive head lice examination was defined as the detection of at least one viable head louse or nymph determined by diagnostic wet-combing.

Secondary

MeasureTime frame
Analyses on individual characteristics (sex, hair length and type) and characteristics of the households (poverty, crowding) were done to measure their importance for infestation-free periods. The annual incidence was calculated/estimated.

Countries

Brazil

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026