期刊
BMJ OPEN
卷 5, 期 10, 页码 -出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/bmjopen-2015-008950
关键词
EPIDEMIOLOGY; PARASITOLOGY; PUBLIC HEALTH
资金
- Bill and Melinda Gates Foundation [OPP1033751]
- DFID/MRC/Wellcome Trust [MR/M021289/1]
- Children's Investment Fund Foundation (CIFF)
- Wellcome Trust [098045]
- Medical Research Council [MR/N00597X/1] Funding Source: researchfish
- MRC [MR/N00597X/1] Funding Source: UKRI
- Bill and Melinda Gates Foundation [OPP1033751] Funding Source: Bill and Melinda Gates Foundation
Introduction In recent years, an unprecedented emphasis has been given to the control of neglected tropical diseases, including soil-transmitted helminths (STHs). The mainstay of STH control is school-based deworming (SBD), but mathematical modelling has shown that in all but very low transmission settings, SBD is unlikely to interrupt transmission, and that new treatment strategies are required. This study seeks to answer the question: is it possible to interrupt the transmission of STH, and, if so, what is the most cost-effective treatment strategy and delivery system to achieve this goal? Methods and analysis Two cluster randomised trials are being implemented in contrasting settings in Kenya. The interventions are annual mass anthelmintic treatment delivered to preschool- and school-aged children, as part of a national SBD programme, or to entire communities, delivered by community health workers. Allocation to study group is by cluster, using predefined units used in public health provisiontermed community units (CUs). CUs are randomised to one of three groups: receiving either (1) annual SBD; (2) annual community-based deworming (CBD); or (3) biannual CBD. The primary outcome measure is the prevalence of hookworm infection, assessed by four cross-sectional surveys. Secondary outcomes are prevalence of Ascaris lumbricoides and Trichuris trichiura, intensity of species infections and treatment coverage. Costs and cost-effectiveness will be evaluated. Among a random subsample of participants, worm burden and proportion of unfertilised eggs will be assessed longitudinally. A nested process evaluation, using semistructured interviews, focus group discussions and a stakeholder analysis, will investigate the community acceptability, feasibility and scale-up of each delivery system. Ethics and dissemination Study protocols have been reviewed and approved by the ethics committees of the Kenya Medical Research Institute and National Ethics Review Committee, and London School of Hygiene and Tropical Medicine. The study has a dedicated web site. Trial registration number NCT02397772.
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