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• W2036389186 abstract "Background: Malnutrition may impact the pharmacokinetics (PKs) of antiretroviral medications and virologic responses in HIV-infected children. The authors therefore evaluated the PK of nevirapine (NVP), efavirenz (EFV) and lopinavir (LPV) in associations with nutritional status in a cohort of HIV-infected Ugandan children. Methods: Sparse dried blood spot samples from Ugandan children were used to estimate plasma concentrations. Historical PK data from children from 3 resource-rich countries (RRC) were utilized to develop the PK models. Results: Concentrations in 330 dried blood spot from 163 Ugandan children aged 0.7–7 years were analyzed in reference to plasma PK data (1189 samples) from 204 children from RRC aged 0.5–12 years. Among Ugandan children, 48% was malnourished (underweight, thin or stunted). Compared to RRC, Ugandan children exhibited reduced bioavailability of EFV and LPV; 11% (P = 0.045) and 18% (P = 0.008), respectively. In contrast, NVP bioavailability was 46% higher in Ugandan children (P < 0.001) with a trend toward greater bioavailability when malnourished. Children receiving LPV, EFV or NVP had comparable risk of virologic failure. Among children on NVP, low height and weight for age Z scores were associated with reduced risk of virologic failure (P = 0.034, P = 0.068, respectively). Conclusions: Ugandan children demonstrated lower EFV and LPV and higher NVP exposure compared to children in RRC, perhaps reflecting the consequence of malnutrition on bioavailability. In children receiving NVP, the relation between exposure, malnutrition and outcome turned out to be marginally significant. Further investigations are warranted using more intensive PK measurements and adequate adherence assessments, to further assess causes of virologic failure in Ugandan children." @default.
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• W2036389186 date "2015-03-01" @default.
• W2036389186 modified "2023-10-03" @default.
• W2036389186 title "The Effect of Malnutrition on the Pharmacokinetics and Virologic Outcomes of Lopinavir, Efavirenz and Nevirapine in Food Insecure HIV-infected Children in Tororo, Uganda" @default.
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• W2036389186 doi "https://doi.org/10.1097/inf.0000000000000603" @default.
• W2036389186 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4351793" @default.
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