Volume 98, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The treatment of mansonelliasis is still a challenge because there are few clinical trials for the treatment of the disease. This double-blind, randomized, placebo-controlled study (phase III clinical trial) was conducted to evaluate the effectiveness of a single oral dose of ivermectin (0.15 mg/kg) in the reduction of the microfilaraemia and the occurrence of adverse effects in infected people compared with the control group treated with placebo. A total of 49 microfilaraemic patients were randomly selected from the municipality of Lábrea, State of Amazonas, in the Brazilian Amazon. Among them, 40 patients have concluded the study, 19 treated with ivermectin and 21 treated with placebo. In the first and third days after the treatment, all the patients were clinically evaluated, and the diagnostic and quantification of blood microfilariae through blood filtration in polycarbonate membranes was performed. A significant reduction of the microfilaraemia (99.9%) was observed in the patients who received ivermectin. Slight changes in laboratory test results, without clinical importance, were seen in treated and control groups. Our results suggest that ivermectin is effective and safe for the treatment of infections caused by .


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  • Received : 05 Sep 2017
  • Accepted : 21 Nov 2017

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