| Baseline phase | Intervention phase | Evaluation phase | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
 | Allocation* | Site assessment** | Enrolment of index cases | Enrolment of contact cases | Follow-up | End of study |  | ||||
Timepoint |  |  | -2 W | 0 | W1 | W2 | W4 | W8 | W12*** | W24 |  |
Enrolment | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Eligibility screen |  |  | X | X |  |  |  |  |  |  |  |
 Informed consent |  |  | X | X |  |  |  |  |  |  |  |
 Allocation | X |  |  |  |  |  |  |  |  |  |  |
Interventions | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Facility-based arm |  |  | X | X |  |  | X | X | X | X |  |
 Community-based arm |  |  | X | X | X | X | X | X | X | X |  |
 Qualitative assessment |  | X |  |  |  |  |  |  |  |  | X |
 CEA |  |  |  |  | X |  |  | ||||
Assessments | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Identification of contact children |  |  | X |  |  |  |  |  |  |  |  |
 Children started on TPT |  |  |  | X |  |  |  |  |  |  |  |
 Children completed TPT |  |  |  |  |  |  |  |  | X | X |  |
 Acceptability of the intervention |  | X |  |  |  |  |  |  |  |  | X |
 TPT cost |  |  |  |  | X |  |  |