ArticleThe pharmacogenomics journal2018
Polymorphisms in cytochrome P450 are associated with extensive efavirenz pharmacokinetics and CNS toxicities in an HIV cohort in Botswana.
Article in The pharmacogenomics journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.
- Meta-analysis of the associations of CYP2B6-516G>T polymorphisms with efavirenz-induced central nervous system side effects and virological outcome in HIV-infected adults.The pharmacogenomics journal · 2020Pooled it
- Two-way mobile phone intervention compared with standard-of-care adherence support after second-line antiretroviral therapy failure: a multinational, randomised controlled trial.The Lancet. Digital health · 2019Trial
- The impact of the recent HIV non-nucleoside reverse transcriptase inhibitors and nucleoside reverse transcriptase inhibitors-based regimens on metabolic health outcomes: A narrative review.Biochemistry and biophysics reports · 2025Review
- Approaches to repurposing reverse transcriptase antivirals in cancer.British journal of clinical pharmacology · 2025Review
- Review
- Integrase Inhibitors are Associated with Neuropsychiatric Symptoms in Women with HIV.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2023Article
- Pharmacogenetics of Breast Cancer Treatments: A Sub-Saharan Africa Perspective.Pharmacogenomics and personalized medicine · 2022Review
- Large variability in plasma efavirenz concentration in Papua New Guinea HIV/AIDS patients associated with high frequency of CYP2B6 516T allele.Clinical and translational science · 2021Article
- Genetic Variants in Smoking-Related Genes in Two Smoking Cessation Programs: A Cross-Sectional Study.International journal of environmental research and public health · 2021Article
- Association ofPharmacogenomics and personalized medicine · 2021Article
- Barriers to Implementing Clinical Pharmacogenetics Testing in Sub-Saharan Africa. A Critical Review.Pharmaceutics · 2020Review
Corrections and comments
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Authors and funding
13 authors at 6 institutions in 2 countries.
Funding
Abstract
Inter-individual variability in efavirenz (EFV) pharmacokinetics and dynamics is dominantly driven by the polymorphism in cytochrome P450 (CYP) isoenzyme 2B6 516G>T. We hypothesized that additional CYP polymorphisms mediate the relationship between CYP2B6 516G>T, EFV metabolism, and clinical events. We investigated 21 SNPs in 814 HIV-infected adults initiating EFV-based therapy in Botswana for population pharmacokinetics, CNS toxicities, and treatment outcomes. Two SNPs (rs28399499 and rs28399433) showed reduced apparent oral EFV clearance. Four SNPs (rs2279345, rs4803417, rs4802101, and rs61663607) showed extensive clearance. Composite CYP2B-mediated EFV metabolism was significantly associated with CNS toxicity (p = 0.04), with extensive metabolizers reporting more and slow and very slow metabolizers reporting less toxicity after 1 month compared to intermediate metabolizers. Composite CYP2B6 metabolism was not associated with composite early treatment failure. In conclusion, our data suggest that CNS-related toxicities might not be solely the result of super-therapeutic parent EFV concentrations in HIV-infected individuals in patients of African ancestry.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.