Efficacy of three different regimens of primaquine for the prevention of relapses of Plasmodium vivax malaria in the Amazon Basin of Peru.
Am J Trop Med Hyg
; 91(1): 18-26, 2014 Jul.
Article
em En
| MEDLINE
| ID: mdl-24752682
ABSTRACT
We evaluated the efficacy of three primaquine (PQ) regimes to prevent relapses with Plasmodium vivax through an open-label randomized trial in Loreto, Peru. Vivax monoinfections were treated with chloroquine for 3 days and PQ in three different regimes 0.5 mg/kg per day for 5 days (150 mg total), 0.5 mg/kg per day for 7 days (210 mg total), or 0.25 mg/kg per day for 14 days (210 mg total). Biweekly fever assessments and bimonthly thick smears were taken for 210 days. Recurrences after 35 days were considered relapses. One hundred eighty cases were enrolled in each group; 90% of cases completed follow-up. There were no group-related differences in age, sex, or parasitemia. Relapse rates were similar in the 7- and 14-day regimes (16/156 = 10.3% and 22/162 = 13.6%, P = 0.361) and higher in the 5-day group (48/169 = 28.4%, P < 0.001 and P = 0.001, respectively). The 7-day PQ regimen used in Peru is as efficacious as the recommended 14-day regimen and superior to 5 treatment days.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Primaquina
/
Cloroquina
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Malária Vivax
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Antimaláricos
Tipo de estudo:
Clinical_trials
Limite:
Adolescent
/
Adult
/
Aged
/
Child
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Child, preschool
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Female
/
Humans
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Male
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Middle aged
País/Região como assunto:
America do sul
/
Peru
Idioma:
En
Revista:
Am J Trop Med Hyg
Ano de publicação:
2014
Tipo de documento:
Article