The purpose of this prospective, observational study is to assess the operational feasibility of appropriate radical cure treatment for P. vivax malaria with tafenoquine or primaquine, in patients 16 year and older, after G6PD testing in Thailand. The study will be implemented in a phased manner, in the provinces of Yala and Mae Hong Son. The first phase will be at higher level health facilities (hospitals). An interim analysis will be conducted after 40 patients are enrolled in the study in order to decide whether the study could be extended to lower level HFs. If approved by the Independent Study Oversight Committee, the study will be implemented in lower level HFs (malaria clinics).Higher level HFs will continue to include patients in the study during this 2nd phase.Written informed consent / assent is required from all patients /guardians in the case of minors.
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Appropriate use of TQ based on G6PD activity
Timeframe: 8 months