Case report: recurrence of Plasmodium vivax malaria due to defective cytochrome P450 2D6 function in Pos Lenjang, Pahang, Malaysia

Salleh, Noor Hafizan Mat and Rahman, Mohd Faizal Abdul and Samsusah, Samsiah and De Silva, Jeremy Ryan and Ng, David Chun-Ern and Ghozali, Azilawati Hanim and Tan, Jia Hui and Lai, Meng Yee and Amir, Amirah and Liew, Jonathan Wee Kent and Lau, Yee Ling (2020) Case report: recurrence of Plasmodium vivax malaria due to defective cytochrome P450 2D6 function in Pos Lenjang, Pahang, Malaysia. Transactions of the Royal Society of Tropical Medicine and Hygiene, 114 (9). pp. 700-703. ISSN 0035-9203, DOI https://doi.org/10.1093/trstmh/traa042.

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Abstract

Five children in Pos Lenjang, Pahang, Malaysia were PCR-positive for vivax malaria and were admitted to the hospital from 5 to 26 July 2019. One of the patients experienced three episodes of recurrence of vivax malaria. Microsatellite analysis showed that reinfection is unlikely. Drug resistance analysis indicated that Riamet (artemether-lumefantrine) is effective. Cytochrome P450 2D6 (CYP2D6) testing showed that this patient has defective CYP2D6 function. Primaquine failure to clear the Plasmodium vivax hypnozoites may be the cause of recurring infections in this patient. This report highlights the need for the development of Liver-stage curative antimalarials that do not require metabolism by the CYP2D6 enzyme.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: CYP2D6; Drug resistance; Mutation; Plasmodium vivax; Recurrent
Subjects: R Medicine
S Agriculture > SF Animal culture
Divisions: Faculty of Medicine
Faculty of Medicine > Parasitology Deparment
Depositing User: Ms Zaharah Ramly
Date Deposited: 30 Nov 2023 07:38
Last Modified: 30 Nov 2023 07:38
URI: http://eprints.um.edu.my/id/eprint/36459

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