Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2002-12-24
pubmed:abstractText
Chloroquine (CQ) treatment of CQ-resistant Plasmodium falciparum is associated with a significantly higher prevalence of post-treatment gametocytaemia which has been linked to the preferential transmission of CQ-resistant parasites. It is not known whether treatment failure (TF) with sulfadoxine-pyrimethamine (SP) is associated with the same higher prevalence of gametocytaemia as that seen with CQ TF. Using 1997 WHO in-vivo drug efficacy protocols for malaria, we therefore compared (in a study in 1999) the frequency of gametocytaemia in those with TF to the frequency seen in those with an adequate clinical and parasitological response (ACPR) following treatment with one of 3 regimens in Papua, Indonesia: SP monotherapy (n = 87; TF 20.7%), CQ monotherapy (n = 48; TF 83.3%), and the combination of CQ plus SP (n = 34; TF 38.2%). Following SP, day 7 prevalence was significantly higher in those with TF (67%) than with ACPR (38%, P = 0.03). Following combination treatment with CQ + SP, the day 14 gametocyte prevalence was significantly higher in those with TF (100% vs 38%, P = 0.016). The higher prevalence of SP TF-associated gametocytaemia may contribute to increased transmission of antifolate-resistant strains, and further cautions against the use of SP as monotherapy. Adding SP to CQ, after significant resistance has emerged to both drugs, may not prevent enhanced transmission of dual-resistant strains and progression of anti-folate resistance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0035-9203
pubmed:author
pubmed:issnType
Print
pubmed:volume
96
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
434-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:12497983-Adolescent, pubmed-meshheading:12497983-Adult, pubmed-meshheading:12497983-Aged, pubmed-meshheading:12497983-Animals, pubmed-meshheading:12497983-Antimalarials, pubmed-meshheading:12497983-Child, pubmed-meshheading:12497983-Child, Preschool, pubmed-meshheading:12497983-Chloroquine, pubmed-meshheading:12497983-Disease Progression, pubmed-meshheading:12497983-Drug Combinations, pubmed-meshheading:12497983-Female, pubmed-meshheading:12497983-Humans, pubmed-meshheading:12497983-Infant, pubmed-meshheading:12497983-Malaria, Falciparum, pubmed-meshheading:12497983-Male, pubmed-meshheading:12497983-Middle Aged, pubmed-meshheading:12497983-Plasmodium falciparum, pubmed-meshheading:12497983-Pyrimethamine, pubmed-meshheading:12497983-Sulfadoxine, pubmed-meshheading:12497983-Treatment Outcome
pubmed:articleTitle
Higher gametocyte prevalence following failure of treatment of Plasmodium falciparum malaria with sulfadoxine-pyrimethamine and the combination of chloroquine plus sulfadoxine-pyrimethamine: implications for progression of anti-folate resistance.
pubmed:affiliation
National Institute of Health Research and Development, Ministry of Health, Jakarta, Indonesia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't