Treatment of chronic Chagas' disease with itraconazole and allopurinol.

W Apt Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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X Aguilera Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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A Arribada Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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C Pérez Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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C Miranda Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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G Sánchez Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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I Zulantay Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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P Cortés Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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J Rodriguez Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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D Juri Department of Parasitology, Faculty of Medicine, University of Chile, Santiago.

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Four hundred four patients with chronic Chagas' disease were treated with itraconazole (6 mg/kg of body weight/day for 120 days), allopurinol (8.5 mg/kg of body weight/day for 60 days), or with a placebo of pure starch. Patients were monitored over a period of four years by clinical examination, serology, xenodiagnosis, hemoculture, and electrocardiogram. Drug tolerance was good, with only four treatments discontinued due to side effects that subsided after suspension of treatment. Parasitologic cure was evident in 44% of the those treated with allopurinol and 53% of those treated with itraconazole, and the electrocardiographic evaluation showed normalization in 36.5% and 48.2%, respectively, of patients with chronic or recent cardiopathy.

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