Last Updated: 17/03/2016

Accelerating the reduction of malaria transmission in Kanel, Ranérou and Linguère districts

Objectives

The goal of the proposed work is to contribute to the national effort of malaria pre-elimination in Senegal, in line with the National Malaria control program’s 2014-2018 strategic framework.

The main objective is to strengthen the implementation of malaria case investigation in Linguère, Ranérou and Kanel districts, to evaluate operational aspects of scaling up the strategy and to evaluate the impact on malaria transmission to guide evidence-based decision-making.

Systematic malaria case investigation will be performed in all villages of the 6 intervention health posts. All malaria cases passively detected in a health post or in the community and confirmed with a positive rapid diagnostic test (RDT) will be considered an index case and will be investigated. A team (field worker and community health worker (DSDOM)) will visit the household of the index case and the 5 closest households (in a 100 m radius) and will test by RDT all the individuals living in the households. Any households with at least one positive RDT (including the index case) will receive a systematic focal drug administration (FDA) treatment with dihydro-artemisinin-piperaquine (DHA-PQ).

Principal Institution

PATH, United States

Principal Investigators / Focal Persons

Farba Balle Khodia Faye
Mady Ba

Rationale and Abstract

Methodology:

Systematic malaria case investigation will be performed in all villages of the 6 intervention health posts. All malaria cases passively detected in a health post or in the community and confirmed with a positive rapid diagnostic test (RDT) will be considered an index case and will be investigated. A team (field worker and community health worker (DSDOM)) will visit the household of the index case and the 5 closest households (in a 100 m radius) and will test by RDT all the individuals living in the households. Any households with at least one positive RDT (including the index case) will receive a systematic focal drug administration (FDA) treatment with dihydro-artemisinin-piperaquine (DHA-PQ).

Primary outcome measured:

Incidence of passively detected malaria cases [Time Frame: one malaria transmission season (up to 5 months)]: Incidence of passively detected RDT-confirmed malaria cases among individuals older than 2 months (at the health posts or by community health workers), collected through the rapid reporting system already in place. Every week, health facility workers submit basic information on malaria burden, that is entered into DHIS2 (district health information system) at the district level. The quality of the rapid reporting system will be monitored through routine data quality audits (comparing health post registers with submitted data) and continuous monitoring of the data submitted to DHIS2. The estimated enrollment is 30 000 individuals. A comparison before and after the intervention and between interventions and control villages will be done using a difference-in-difference analysis.

The work will be conducted in six health posts in the regions of Matam (Kanel and Ranérou districts) and Louga (Linguère district), that have been chosen on the basis of the malaria incidence rate, the wide differences of transmission between villages in the health post catchment areas, their proximity and the availability of historical data from before 2014. Malaria elimination strategies were already implemented in the same health posts in 2015, thus this protocol aims to strengthen these activities. Seven health posts with similar characteristics were chosen as controls.

ClinicalTrials.gov Identifier: NCT02536222

Study Design

Study Type  : Interventional  (Clinical Trial)
Actual Enrollment  : 20379 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)

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