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Placental transfer and tissue accumulation of dolutegravir in the ex vivo human cotyledon perfusion model
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Placental transfer and tissue accumulation of dolutegravir in the ex vivo human cotyledon perfusion model
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Journal Article
Placental transfer and tissue accumulation of dolutegravir in the ex vivo human cotyledon perfusion model
2019
Overview
To determine the transplacental pharmacokinetics of the HIV integrase inhibitor dolutegravir.
Maternal-to-fetal transfer across the term human placenta was investigated with the ex-vivo dually perfused cotyledon model, in 5 closed-circuit, recirculating experiments. Dolutegravir was added to a maternal perfusate containing antipyrine, a marker to validate the cotyledon's viability, and 2 g/liter of human albumin.
After 3h of recirculating perfusion, the mean (± SD) DTG concentrations in the maternal and in the fetal compartments were respectively 2450 ± 286 ng/mL and 715 ± 369 ng/mL, with a fetal-to-maternal ratio of 34% ± 18% and a clearance index (in comparison with antipyrine transfer) of 79% ± 23%. The mean cotyledon accumulation index was 153% ± 25%.
Fetal transplacental exposure to dolutegravir was considerable as well as accumulation in placental tissue. Whether this may lead to risks for the exposed fetus requires more investigation.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
/ Albumin
/ Antipyrine - pharmacokinetics
/ Circuits
/ Female
/ Fetuses
/ Heterocyclic Compounds, 3-Ring - analysis
/ Heterocyclic Compounds, 3-Ring - pharmacokinetics
/ HIV
/ HIV Integrase Inhibitors - analysis
/ HIV Integrase Inhibitors - pharmacokinetics
/ Human immunodeficiency virus
/ Humans
/ Medicine and Health Sciences
/ Placenta
/ Testing
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