ArticleHIV clinical trials
Novel methodology for antiretroviral quantitation in the female genital tract.
Article in HIV clinical trials. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Validation and clinical application of a method to quantify efavirenz in cervicovaginal secretions from flocked swabs using liquid chromatography tandem mass spectrometry.Wellcome open research · 2021Article
- Genital Shedding of Human Immunodeficiency Virus Type-1 (HIV) When Antiretroviral Therapy Suppresses HIV Replication in the Plasma.The Journal of infectious diseases · 2020Article
- Antiretroviral bioanalysis methods of tissues and body biofluids.Bioanalysis · 2013Review
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
purposeChallenges exist regarding antiretroviral quantitation in the female genital tract. Endocervical wicking using sterile tear flow test strips is an alternative to conventional methods due to the consistent sample volume obtained.
methodsA novel method for measuring antiretrovirals in cervicovaginal secretions using Sno-strip wicking was developed and tested by spiking Sno-strips with known concentrations of tenofovir, nevirapine, atazanavir, lopinavir, and ritonavir in blank cervicovaginal lavage fluid. Drug concentrations were determined by high-performance liquid chromatography with ultraviolet or mass spectrometry detection.
resultsMean extraction recoveries were 91% for tenofovir, 89% for nevirapine, 63% for atazanavir, 60% for lopinavir, and 61% for ritonavir relative to controls. Freezing spiked samples for 24 hours at -80 degrees C had no effect on recovery.
conclusionsResults suggest that the antiretrovirals tested can be efficiently extracted from Sno-strips, although a greater percentage of tenofovir and nevirapine was recovered. Storage of Sno-strip samples up to 24 hours before analysis showed no difference in the percentage of drug recovered compared with immediate analysis. Quantitating antiretroviral penetration into the female genital tract may assist in determining optimal therapeutic antiretroviral regimens to both decrease the risk of HIV transmission and prevent development of HIV drug resistance.
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