Reverse Transcriptase Inhibitors

Determination of Clinically Relevant Cutoffs for HIV-1 Phenotypic Resistance Estimates Through a Combined Analysis of Clinical Trial and Cohort Data

BACKGROUND:: Clinically relevant cutoffs are needed for the interpretation of HIV-1 phenotypic resistance estimates as predicted by ''virtual'' phenotype HIV resistance analysis. METHODS:: Using a clinical data set containing 2596 treatment change …

Plasma lipid concentrations after 1.5 years of exposure to nevirapine or efavirenz together with stavudine and lamivudine

OBJECTIVES: To assess long-term changes in lipids and lipoproteins concentrations associated with exposure to non-nucleoside reverse transcriptase inhibitors. METHODS: Long-term analysis of plasma lipid concentrations was performed in patients …

[The use of the non-nucleoside reverse transcriptase inhibitors nevirapine and efavirenz in the treatment of patients with a chronic HIV-I infection]

The non-nucleoside reverse transcriptase inhibitors (NNRTIs) are an important group ofantiretroviral drugs in the treatment of a chronic HIV-I infection. The risk of viral resistance to NNRTIs is strongly diminished when they are used as part of a …

Long-term experience with combination antiretroviral therapy that contains nelfinavir for up to 7 years in a pediatric cohort

OBJECTIVE: We sought to provide long-term data on the clinical, immunologic, and virologic response to highly active antiretroviral therapy in infants and children who are naive to protease inhibitors. METHODS: HIV-1-infected children who were naive …

Pharmacokinetic parameters of nevirapine and efavirenz in relation to antiretroviral efficacy

Optimal adherence is essential for successful antiretroviral therapy. We analyzed the relation between minimum plasma drug concentration (Cmin) and total drug exposure over 24 hr (AUC24) with virologic failure for therapy-adherent patients in the …

Pharmacokinetics of nevirapine: once-daily versus twice-daily dosing in the 2NN study

OBJECTIVE: As part of the large international, randomized 2NN trial, the pharmacokinetics of nevirapine in once-daily 400 mg and twice-daily 200 mg dosing regimens were investigated. METHOD: Treatment-naive HIV-1-infected patients were randomized to …

Protease inhibitors and non-nucleoside reverse transcriptase inhibitors have a comparable effect on the CD4 cell change after switching to tenofovir-based regimens

Nevirapine and efavirenz pharmacokinetics and covariate analysis in the 2NN study

OBJECTIVE: The aim of this 2NN pharmacokinetic substudy was to investigate the population pharmacokinetics of nevirapine and efavirenz. METHODS: Treatment-naive, HIV-1-infected patients received nevirapine (once or twice daily), efavirenz or a …

Quality of life in patients treated with first-line antiretroviral therapy containing nevirapine and/or efavirenz

OBJECTIVE: To assess whether differences in safety profiles between nevirapine (NVP) and efavirenz (EFV), as observed in the 2NN study, translated into differences in 'health related quality of life' (HRQoL). DESIGN: A sub-study of the 2NN study, …

Comparison of first-line antiretroviral therapy with regimens including nevirapine, efavirenz, or both drugs, plus stavudine and lamivudine: a randomised open-label trial, the 2NN Study

BACKGROUND: The 2NN Study was a randomised comparison of the non-nucleoside reverse-transcriptase inhibitors (NNRTI) nevirapine and efavirenz. METHODS: In this multicentre, open-label, randomised trial, 1216 antiretroviral-therapy-naive patients were …