1921
Volume 24, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Abstract

In an area of Thailand where chloroquine-resistant falciparum malaria is known to exist, a chemosuppressive field trial was undertaken to test the efficacy of the preparation diformyldapsone (DFD) combined with pyrimethamine (Py) in suppressing falciparum and vivax parasitemias. Six hundred and fifty-nine Thai villagers were randomly assigned to one of five treatment groups: DFD-Py; dapsone (DDS)-Py; DFD alone; Py alone; and placebo. Five hundred and ninety-three study subjects completed the 26-week trial. The combination DFD-Py given weekly was shown to be an effective chemosuppressive against both falciparum and vivax parasitmias, causing a more than fourfold reduction in falciparum and an approximately threefold reduction in vivax parasitemias; however, this combination was not more efficacious than DDS-Py for the chemosuppression of falciparum malaria. DFD alone was only moderately effective, while there was no difference in chemosuppression between Py alone and placebo.

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/content/journals/10.4269/ajtmh.1975.24.901
1975-11-01
2017-11-18
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http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.1975.24.901
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  • Accepted : 21 Apr 1975

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