Effects of a 3-day regimen of albendazole (800 mg daily) on Loa loa microfilaraemia.
The encephalopathy that sometimes develops after ivermectin treatment in patients with high Loa microfilaraemias is probably related to a massive effect of the drug on the Loa microfilariae. A trial was therefore conducted to evaluate whether a course of albendazole would bring about a slower decrease in the Loa microfilaraemia, and thus could be used as a mass 'clearing' treatment, before the distribution of ivermectin in areas where onchocerciasis and loiasis are co-endemic. The Loa microfilarial loads were followed monthly for 9 months in two groups of subjects, one treated with albendazole (400 mg twice a day for 3 days), and the other with vitamin (B(1), B(6) and B(12)) tablets. There were no significant between-group differences in the microfilarial loads at any of the examination rounds. During the follow-up period, there was also no significant change in the overall loads among those treated with albendazole, although the counts in those with high initial microfilaraemias (>8000 microfilariae/ml) tended to decrease progressively during the first 3 months. Further trials should now be performed, to evaluate the effects on Loa loa of two courses of albendazole given 2-3 months apart.[1]References
- Effects of a 3-day regimen of albendazole (800 mg daily) on Loa loa microfilaraemia. Tsague-Dongmo, L., Kamgno, J., Pion, S.D., Moyou-Somo, R., Boussinesq, M. Ann. Trop. Med. Parasitol. (2002) [Pubmed]
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