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Clinical Trial Summary

To explore housing modification as a malaria control intervention, and to assess the degree to which it may offer protection in moderate to high malaria endemicity settings, we propose a two-phase study evaluating epidemiological and entomological effectiveness, cost-effectiveness, feasibility, and acceptability of housing modification in Uganda. The first phase will be a pilot implementation assessing the feasibility of candidate housing modification interventions, followed by a cluster randomised control trial of the most effective, scalable, and cost-effective interventions.


Clinical Trial Description

The study will be conducted in two phases, beginning with a pilot (Phase I). The aim of the pilot will be to develop and test four types of housing modifications in both modern houses (those with brick or stone walls) and traditionally constructed houses (those with mud walls). The housing modifications will include: (1) full house screening (eaves and windows), (2) partial house screening (eaves or ceiling), (3) eave tubes, and (4) eave ribbons. Community input will be sought during the development of the housing prototypes. In the pilot, all 4 interventions will be implemented in both modern and traditional houses, plus a control arm in each group. All households will have access to PBO LLINs. Community input will be sought during the development of the housing prototypes. The pilot will include 10 arms in total, each consisting of 20 households, equal to 200 households (160 in the intervention and 40 in the control arm) in total. The feasibility and effectiveness of the interventions will be assessed through a qualitative study (FGDs and interviews), evaluation of the costs and implementation of the interventions, and entomology surveys (using CDC light traps). One to two housing interventions will be selected for Phase II following the review and discussion of the pilot results with the trial steering committee. Phase II will include a cluster-randomised trial. A cluster will be defined as a village (or segment of a village consisting of ~100 households). In the cluster-randomised trial, up to 2 interventions vs 1 control arm will be assessed in 20 clusters per arm (60 clusters total). The clusters will be non-contiguous, with a buffer zone of 300-500m. All households in the selected clusters will have PBO LLINs; households in intervention clusters will also receive the specified housing modifications. The impact of the interventions will be assessed through a cohort study, cross-sectional community surveys, entomology surveillance, a qualitative study, and an economic evaluation. The primary outcome of the trial will be clinical malaria incidence in children aged < 60 months as measured in the cohort study. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04622241
Study type Interventional
Source Infectious Diseases Research Collaboration, Uganda
Contact
Status Active, not recruiting
Phase N/A
Start date January 29, 2021
Completion date July 2023

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