Safety and Tolerability of Low Dose Primaquine

Summary

In Cambodia, falciparum is becoming more difficult to treat because drugs are becoming less effective. The investigators can help to try to prevent the spread of this resistant malaria by adding a drug that will make it more difficult for the mosquito to drink up the malaria in people's blood. If the mosquito cannot drink up the malaria, then the malaria cannot develop in the mosquito so it will not be able to inject malaria back into people when it bites. The drug the investigators will use is called primaquine. Primaquine commonly causes the red cells in the blood to break apart if they are weak. Red cells need enzymes to work properly and weak red cells have low amounts of an enzyme called glucose 6 phosphate dehydrogenase (G6PD). The investigators want to know if treating malaria with primaquine will be safe for the red cells. To do this study, the investigators need to know if a subject has low G6PD or not.

Timeline

Start

2014-10

Primary completion

2016-07

Completion

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Publications

• Vantaux A, Kim S, Piv E, Chy S, Berne L, Khim N, Lek D, Siv S, Mukaka M, Taylor WR, Menard D. Significant Efficacy of a Single Low Dose of Primaquine Compared to Stand-Alone Artemisinin Combination Therapy in Reducing Gametocyte Carriage in Cambodian Patients with Uncomplicated Multidrug-Resistant Plasmodium falciparum Malaria. Antimicrob Agents Chemother. 2020 May 21;64(6):e02108-19. doi: 10.1128/AAC.02108-19. Print 2020 May 21.
• Dysoley L, Kim S, Lopes S, Khim N, Bjorges S, Top S, Huch C, Rekol H, Westercamp N, Fukuda MM, Hwang J, Roca-Feltrer A, Mukaka M, Menard D, Taylor WR. The tolerability of single low dose primaquine in glucose-6-phosphate deficient and normal falciparum-infected Cambodians. BMC Infect Dis. 2019 Mar 12;19(1):250. doi: 10.1186/s12879-019-3862-1.

Drugs

Indications