PubMed Journals Articles About "Lopinavir Ritonavir Emtricitabine Stavudine Infections" RSS

18:44 EST 14th December 2018 | BioPortfolio

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Showing "Lopinavir Ritonavir Emtricitabine Stavudine Infections" PubMed Articles 1–25 of 3,600+

Metabolic effects of initiating lopinavir/ritonavir-based regimens among young children: 7-year follow-up of the IMPAACT P1060 trial.

To estimate the long-term metabolic effects of initiating a lopinavir/ritonavir (LPV/r)-based regimen as first-line therapy for HIV-infected children less than three years of age in resource-limited settings.

Simultaneous quantitation of zidovudine, efavirenz, lopinavir and ritonavir in human hair by liquid chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry.

Nowadays, zidovudine, efavirenz, lopinavir and ritonavir are important components of the second-line antiretroviral therapeutic regimen of National Free Antiretroviral Treatment Program in China. The measurement of antiretroviral drugs in hair will facilitate for the evaluation of the long-term adherence to highly active antiretroviral therapy. Nevertheless, no study illustrated simultaneous quantitation of the four drugs in hair. The study intended to develop a simple, sensitive and selective method for si...

Plasma metabolic changes in Chinese HIV-infected patients receiving lopinavir/ritonavir based treatment: Implications for HIV precision therapy.

The goal of this study is to profile the metabolic changes in the plasma of HIV patients receiving lopinavir/ritonavir (LPV/r)-based highly active antiretroviral therapy (HAART) relative to their treatment-naïve phase, aimed to identify precision therapy for HIV for improving prognosis and predicting dyslipidemia caused by LPV/r.

The relevance of co-amorphous formulations to develop supersaturated dosage forms: In-vitro, and ex-vivo investigation of Ritonavir-Lopinavir co-amorphous materials.

Ritonavir and Lopinavir have previously been demonstrated to decrease the maximum solubility advantage and flux in the presence of each other. The present study investigated the ability of Ritonavir and Lopinavir co-amorphous materials to generate a supersaturated state. Further, it explored the precipitation and flux behavior of co-amorphous materials. The co-amorphous materials of Ritonavir and Lopinavir were prepared by quench cool method and characterized in the solid state using XRPD, DSC, FTIR. The so...

Patient Self-Reported Adherence to Ritonavir-Boosted Darunavir Combined with Either Raltegravir or Tenofovir Disoproxil Fumarate /Emtricitabine in the Neat 001/Anrs 143 Trial.

The NEAT 001/ANRS 143 trial demonstrated non-inferiority of darunavir-ritonavir combined with either raltegravir (RAL+DRV/r) or tenofovir disoproxil fumarate/emtricitabine (TDF/FTC+DRV/r) in HIV-positive, antiretroviral-naive adults. In post-hoc analyses however, RAL+DRV/r showed inferiority in patients with baseline CD4+

Patient Self-Reported Adherence to Ritonavir-Boosted Darunavir Combined With Either Raltegravir or Tenofovir Disoproxil Fumarate/Emtricitabine in the NEAT001/ANRS143 Trial.

The NEAT001/ANRS143 trial demonstrated noninferiority of ritonavir-boosted darunavir combined with either raltegravir (RAL + DRV/r) or tenofovir disoproxil fumarate/emtricitabine (TDF/FTC + DRV/r) in HIV-positive, antiretroviral-naive adults. In post hoc analyses, however, RAL + DRV/r showed inferiority in patients with baseline CD4

Evaluation of adhesion molecules and immune parameters in HIV-infected patients treated with an atazanavir/ritonavir- compared with a lopinavir/ritonavir-based regimen.

To evaluate changes in pro-atherosclerotic biomarkers and endothelial function in patients initiating two different PI-based regimens as part of ART.

An Innovative, Collaborative, and Strategic Approach to Proactively Evaluate and Update Drug Interactions Based on Prescribing Information of Newly Approved Medicinal Products.

Drug-drug interaction (DDIs) are evaluated using pharmacokinetic (PK) simulation models, clinical studies, and scientific publications throughout drug development. DDIs with Norvir (ritonavir) and combination products (eg, Kaletra [lopinavir/ritonavir]) containing ritonavir as a PK enhancer are relevant, because these drugs could affect exposures of CYP3A4 substrates. Application of algorithms proactively identified recently approved drugs, which potentially cause adverse outcomes when given with drugs cont...

Three HIV drugs, atazanavir, ritonavir and tenofovir co-formulated in drug-combination nanoparticles exhibit long-acting and lymphocyte targeting properties in non-human primates.

Drug combination nanoparticles (DcNP) administered subcutaneously represent a potential long-acting lymphatic-targeting treatment for HIV-infection. The DcNP containing lopinavir-ritonavir-tenofovir, Targeted-Long-Acting-Antiretroviral-Therapy product candidate 101 (TLC-ART 101), has shown to provide long-acting lymphocyte-targeting performance in non-human primates. To extend the TLC-ART platform, we replaced TLC-ART 101 lopinavir with second-generation protease inhibitor, atazanavir. Pharmacokinetics of a...

Inhibition of osteoblast differentiation by ritonavir.

Osteoporosis is one of the chronic complications seen in human immunodeficiency virus (HIV)-infected patients, and affects patients at high prevalence. The causes of osteoporosis in HIV-infected patients are multiple, and include chronic HIV infection, living habits such as smoking and alcohol consumption, and antiretroviral drug use. Among antiretroviral drugs, protease inhibitors have been reported to be associated with osteoporosis. However, it remains to be determined how anti-HIV drugs affect osteoblas...

Population Pharmacokinetics and Dosing Regimen Optimisation of Lopinavir in Chinese Adults Infected with HIV.

Lopinavir (LPV) is a protease inhibitor (PI) for the treatment of human immunodeficiency virus (HIV) infections. Current studies on LPV are mainly focused on Caucasians, and none have investigated the population pharmacokinetics (PPK) of LPV in Chinese population. The present study aimed to develop a PPK model for oral LPV in Chinese adults who are HIV-infected. A total of 460 LPV concentrations from 174 Chinese patients who received LPV/ritonavir (LPV/r) 400/100 mg orally every 12 hr (q12h) were analysed u...

Efficacy and safety of tenofovir disoproxil fumarate versus low-dose stavudine over 96 weeks: a multi-country randomised, non-inferiority trial.

Reducing doses of antiretroviral drugs, including stavudine (d4T), may lower toxicity, while preserving efficacy. There are substantial concerns about renal and bone toxicities of tenofovir disoproxil fumarate (TDF).

Dosing Recommendations for Quetiapine When Coadministered With HIV Protease Inhibitors.

Although current quetiapine labeling recommends that its dosage should be lowered 6-fold when coadministered with strong cytochrome P450 (CYP)3A inhibitors, a reported case of coma in a patient receiving quetiapine with lopinavir and ritonavir prompted the reevaluation of labeling recommendations for the dosing of quetiapine when coadministered with human immunodeficiency virus (HIV) protease inhibitors. Literature and database (FDA Adverse Event Reporting System and United States Symphony Health Solutions'...

Pharmacogenetic variation influences sensory neuropathy occurrence in Southern Africans treated with stavudine-containing antiretroviral therapy.

The use of the HIV antiretroviral drug stavudine (d4T), a thymidine analogue, is associated with the development of mitochondrial toxicities such as sensory neuropathy (SN). Genetic variation in genes relating to d4T transport and metabolism, as well as genetic variation in the thymidine synthesis pathway, could influence occurrence of d4T-related toxicity.

Pharmacokinetics of Tenofovir Alafenamide, Tenofovir, and Emtricitabine Following Administration of Coformulated Emtricitabine/Tenofovir Alafenamide in Healthy Japanese Subjects.

A fixed-dose combination of tenofovir alafenamide (TAF) and emtricitabine (FTC) is available in 2 tablet strengths in Japan (FTC/TAF 200/10 mg and FTC/TAF 200/25 mg). These are used once daily in combination with other antiretroviral agents for the treatment of human immunodeficiency virus type 1 infection. The primary objective of this study was to investigate if there is any clinically relevant pharmacokinetic difference for TAF, tenofovir (TFV), and FTC between Japanese and non-Japanese with historical...

Identification of Highly Potent Human Immunodeficiency Virus Type-1 Protease Inhibitors against Lopinavir and Darunavir Resistant Viruses from Allophenylnorstatine-Based Peptidomimetics with P2 Tetrahydrofuranylglycine.

The emergence of drug-resistant HIV from a wide-spread anti-viral chemotherapy targeting HIV protease in the past decades is unavoidable and provides a challenge to develop alternative inhibitors. We synthesized a series of allophenylnorstatine-based peptidomimetics with various P3, P2 and P2´ moieties. The derivatives with P2 tetrahydrofuranylglycine (Thfg) were found to be potent against wild type HIV-1 protease and the virus, leading to a highly potent compound 21f (KNI-1657) against lopinavir/ritonavir...

Lopinavir/Ritonavir treatment increases the placental transfer of bupivacaine enantiomers in HIV-infected pregnant women.

The present study evaluated the placental transfer and amniotic fluid distribution of bupivacaine enantiomers in health pregnant women and in HIV-infected pregnant women receiving epidural anaesthesia for caesarean section.

Pharmacokinetic modelling of darunavir/ritonavir dose reduction (800/100 to 400/100 mg once daily) in a darunavir/ritonavir-containing regimen in virologically suppressed HIV-infected patients: ANRS 165 DARULIGHT sub-study.

In the ANRS 165 DARULIGHT study (NCT02384967) carried out in HIV-infected patients, the use of a darunavir/ritonavir-containing regimen with a switch to a reduced dose of darunavir maintained virological efficacy (≤50 copies/mL) for 48 weeks with a good safety profile.

Patient-Reported Outcomes in First-Line Antiretroviral Therapy: Results from NEAT001/ANRS143 Trial Comparing Darunavir/Ritonavir in Combination with Tenofovir/Emtricitabine or Raltegravir.

There are few data comparing patient reported outcomes (PROs) in randomized trials of initial antiretroviral therapy (ART). We present results from a substudy of the NEAT001/ANRS143 trial.

Extended cell and plasma drug levels after one dose of a 3-in-1 nanosuspension containing lopinavir, efavirenz, and tenofovir in non-human primates.

To characterize a drug-combination nanoparticle (DcNP) containing water-insoluble lopinavir (LPV) and efavirenz (EFV), and water-soluble tenofovir (TFV), for its potential as a long-acting combination HIV treatment.

Assessment of Multi-Ion Channel Block in a Phase-1 Randomized Study Design:Results of the CiPA Phase 1 ECG Biomarker Validation Study.

Balanced multi-ion channel-blocking drugs have low torsade risk because they block inward currents. The Comprehensive in vitro Proarrhythmia Assay (CiPA) initiative proposes to use an in-silico cardiomyocyte model to determine the presence of balanced block, and absence of J-Tpeakc prolongation would be expected for balanced blockers. This study included 3 balanced blockers in a 10-subject per drug parallel-design; lopinavir/ritonavir and verapamil met the primary endpoint of ΔΔJ-Tpeakc upper bound

Overdose of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide in an HIV-1-infected subject with attempted suicide.

Data are lacking regarding overdose of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide (E/C/F/TAF).

Low-dose ritonavir-boosted darunavir in virologically suppressed HIV-1-infected adults: an open-label trial (ANRS 165 Darulight).

To assess whether low-dose ritonavir-boosted darunavir (darunavir/r) in combination with two NRTIs could maintain virological suppression in patients on a standard regimen of darunavir/r + two NRTIs.

Lipid changes and tolerability in a cohort of adult HIV-infected patients who switched to rilpivirine/emtricitabine/tenofovir due to intolerance to previous combination ART: the PRO-STR study.

To analyse lipid changes and tolerability in a cohort of HIV-infected patients who switched their antiretroviral regimens to rilpivirine/emtricitabine/tenofovir (RPV/FTC/TDF) in a real-world setting.

Interactions of protease inhibitors atazanavir and ritonavir with ABCB1, ABCG2 and ABCC2 transporters: Effect on transplacental disposition in rats.

Atazanavir and ritonavir are preferred protease inhibitors frequently used in combination antiretroviral therapy for prevention of HIV mother-to-child transmission. Although their use is associated with higher risk of congenital anomalies, factors affecting atazanavir and ritonavir placental transfer are not known. This study is the first attempt to evaluate whether the placental drug efflux ATP-binding cassette (ABC) transporters, p-glycoprotein (ABCB1), breast cancer resistance protein (ABCG2) and/or mult...

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