Elsevier

The Lancet

Volume 347, Issue 9014, 1 June 1996, Pages 1511-1514
The Lancet

Article
Atovaquone and proguanil for Plasmodium falciparum malaria

https://doi.org/10.1016/S0140-6736(96)90671-6Get rights and content

Abstract

Summary

Background The increasing spread of multidrug-resistant Plasmodium falciparum malaria emphasises the urgent need for alternative treatment regimens. The objective of the study was to establish the efficacy of a novel drug combination. We compared a combination of atovaquone and proguanil with amodiaquine in the treatment of acute uncomplicated P falciparum malaria in Lambaréné, Gabon.

Methods 142 adults were randomly allocated either a combination treatment of atovaquone 1000 mg daily and proguanil 400 mg daily for 3 days or treatment with amodiaquine 600 mg on admission, 600 mg 24 h later, and 300 mg after a further 24 h. Symptoms and clinical signs were recorded and giemsa-stained thick blood smears were done every 12 h until patients had been symptom-free and aparasitaemic for 24 h. 126 patients were followed up for 28 days or until recrudescence.

Findings In the atovaquone plus proguanil group 62 (87%) of 71 patients were cured and only one had recrudescent infection. By contrast, the cure rate was significantly lower (p=0·022) with amodiaquine (51 [72%] of 71; there were 12 recrudescences in the amodiaquine group). Eight patients in each group were lost to follow-up. Patients treated with atovaquone plus proguanil complained of nausea (33%) and vomiting (29%), and the most commonly reported adverse effects of amodiaquine were pruritus (43%) and insomnia (27%).

Interpretation Atovaquone and proguanil was a highly effective and safe drug combination in patients with acute uncomplicated P falciparum malaria in Gabon.

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