Imatinib augments standard malaria combination therapy without added toxicity.

Abstract:

:To egress from its erythrocyte host, the malaria parasite, Plasmodium falciparum, must destabilize the erythrocyte membrane by activating an erythrocyte tyrosine kinase. Because imatinib inhibits erythrocyte tyrosine kinases and because imatinib has a good safety profile, we elected to determine whether coadministration of imatinib with standard of care (SOC) might be both well tolerated and therapeutically efficacious in malaria patients. Patients with uncomplicated P. falciparum malaria from a region in Vietnam where one third of patients experience delayed parasite clearance (DPC; continued parasitemia after 3 d of therapy) were treated for 3 d with either the region's SOC (40 mg dihydroartemisinin + 320 mg piperaquine/d) or imatinib (400 mg/d) + SOC. Imatinib + SOC-treated participants exhibited no increase in number or severity of adverse events, a significantly accelerated decline in parasite density and pyrexia, and no DPC. Surprisingly, these improvements were most pronounced in patients with the highest parasite density, where serious complications and death are most frequent. Imatinib therefore appears to improve SOC therapy, with no obvious drug-related toxicities.

journal_name

J Exp Med

authors

Chien HD,Pantaleo A,Kesely KR,Noomuna P,Putt KS,Tuan TA,Low PS,Turrini FM

doi

10.1084/jem.20210724

subject

Has Abstract

pub_date

2021-10-04 00:00:00

issue

10

eissn

0022-1007

issn

1540-9538

pii

212603

journal_volume

218

pub_type

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