Malaria Clinical Trial
Official title:
Advancing Spatial Repellents for Malaria Control: Effectiveness and Cost-Effectiveness of a Spatial Repellent Under Operational Use in Northern Uganda
The primary objective of the study is to demonstrate and quantify the effectiveness of a spatial repellent (SR) product, in reducing malaria infection in humans under operational program conditions in a humanitarian assistance context. The design will be a cluster Randomized Control Trial (cRCT) representing an operational research study.
Spatial repellents (SRs) have been widely used for the prevention of mosquito bites, and preliminary findings suggest efficacy against both malaria and Aedes-borne viruses but their effectiveness in reducing mosquito borne diseases under operational use has never been evaluated. SRs have the potential of being critical tools in the prevention of mosquito borne diseases in contexts where typical vectors control strategies, such as Insecticide-Treated Nets (ITNs) and indoor residual spray (IRS), are inaccessible or underutilized such as among displaced peoples or in emergency relief settings. To address this knowledge gap, the Bidibidi refugee settlement in the Yumbe District of North West Uganda was selected as the study site to estimate the impact of the SR on malaria related outcomes under operational use conditions given ongoing humanitarian relief efforts. Children will be enrolled in 3 separate cohorts to establish effectiveness of SRs in reducing malaria infection in distribution channels. One cohort will estimate the direct effect of the SR distributed through a reference channel (study personnel distribution). The two remaining cohorts will estimate the protection of the SR distributed through a voucher channel and village health team (VHT) channel. Cohorts will be followed twice a month (approximately every 15 days) during the first scheduled household visit in the month, a blood sample will be taken for malaria rapid diagnostic test (RDT) (Monthly Visit #1); and, during the second scheduled household visit, a blood sample will only be taken if the participant has a recent history of fever (Monthly Visit #2). The incidence of malaria in each cohort will be estimated and compared to the reference cohort to determine the benefit of using an SR in an area with high, year-round transmission of malaria. ;
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