High plasma efavirenz concentration and CYP2B6 polymorphisms in Thai HIV-1 infections

C Sukasem, M Chamnanphon, N Koomdee… - Drug metabolism and …, 2013 - Elsevier
Efavirenz is mainly metabolized by cytochrome P450 2B6 (CYP2B6). This study aimed to
examine the frequencies of CYP2B6 and the association between CYP2B6 polymorphisms …

Low level of efavirenz in HIV-1-infected Thai adults is associated with the CYP2B6 polymorphism

C Sukasem, W Manosuthi, N Koomdee, S Santon… - Infection, 2014 - Springer
Background Human immunodeficiency virus type 1 (HIV-1) infections with a plasma
efavirenz concentration of< 1,000 ng/mL appear to have a high risk for the emergence of …

Pharmacogenetic markers of CYP2B6 associated with efavirenz plasma concentrations in HIV‐1 infected Thai adults

C Sukasem, TR Cressey, P Prapaithong… - British journal of …, 2012 - Wiley Online Library
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT• Interindividual variability in efavirenz
plasma concentrations is associated with CYP2B6 genetic polymorphisms.• Twenty‐nine …

CYP2B6 (c.516G→T) and CYP2A6 (*9B and/or *17) polymorphisms are independent predictors of efavirenz plasma concentrations in HIV‐infected patients

A Kwara, M Lartey, KW Sagoe… - British journal of …, 2009 - Wiley Online Library
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT• Cytochrome P450 (CYP) 2B6
polymorphisms, particularly c. 516G→ T, are strongly associated with plasma efavirenz …

Pharmacogenetics and clinical biomarkers for subtherapeutic plasma efavirenz concentration in HIV-1 infected Thai adults

C Sukasem, M Chamnanphon, N Koomdee… - Drug Metabolism and …, 2014 - Elsevier
The aim of this study was to assess the influence of host genetic variations and clinical
factors in relation to efavirenz level in HIV-1 infected Thai adults. A total of 100 HIV-infected …

CYP2B6 genotype is a strong predictor of systemic exposure to efavirenz in HIV-infected Zimbabweans

M Maimbo, K Kiyotani, T Mushiroda… - European journal of …, 2012 - Springer
Objective Efavirenz, an antiretroviral medicine, is extensively metabolized by cytochrome
P450 2B6 (CYP2B6), UDP-glucuronosyltransferase 2B7 (UGT2B7), and CYP2A6. In this …

Effect of CYP2B6 Gene Polymorphisms on Efavirenz Plasma Concentrations in Chinese Patients with HIV Infection

X Meng, K Yin, J Wang, P Dong, L Liu, Y Shen, L Shen… - PloS one, 2015 - journals.plos.org
Objectives The main aim of this study was to investigate the effect of CYP2B6 gene
polymorphisms on efavirenz (EFV) plasma concentrations in Han Chinese patients with …

Pharmacogenetic associations with plasma efavirenz concentrations and clinical correlates in a retrospective cohort of Ghanaian HIV-infected patients

FS Sarfo, Y Zhang, D Egan, LA Tetteh… - Journal of …, 2014 - academic.oup.com
Objectives Efavirenz is widely used in first-line antiretroviral therapy in sub-Saharan Africa.
However, exposure to efavirenz shows marked interindividual variability that is genetically …

Pharmacogenetics of plasma efavirenz exposure in HIV‐infected adults and children in South Africa

PZ Sinxadi, PD Leger, HM McIlleron… - British journal of …, 2015 - Wiley Online Library
Aims Genetic factors, notably CYP2B6 516G→ T [rs3745274] and 983T→ C [rs28399499],
explain much of the interindividual variability in efavirenz pharmacokinetics, but data from …

CYP2B6, CYP2A6 and UGT2B7 genetic polymorphisms are predictors of efavirenz mid-dose concentration in HIV-infected patients

A Kwara, M Lartey, KWC Sagoe, E Kenu - Aids, 2009 - journals.lww.com
Objective: UDP-glucuronosyltransferase (UGT) 2B7 was recently identified as the main
enzyme mediating efavirenz N-glucuronidation. In this study, we determined whether …