Evidence map›Paper›PMID 25963334›Full record

ArticleThe pharmacogenomics journal2016

CYP2B6*6 genotype and high efavirenz plasma concentration but not nevirapine are associated with low lumefantrine plasma exposure and poor treatment response in HIV-malaria-coinfected patients.

B A Maganda, O M S Minzi, E Ngaimisi, A A R Kamuhabwa, E Aklillu

Abstract read
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Article in The pharmacogenomics journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 3 pooled it
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 3 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Pooled it
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  4. Trial
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  7. Review
  8. Article
  9. Article
  10. Variability in plasma rifampicin concentrations and role ofInfectious diseases (London, England) · 2024
    Article
  11. Review
  12. Article
  13. Review
  14. The Journal of pharmacology and experimental therapeutics · 2022
    Article
  15. Review
  16. PharmVar GeneFocus: CYP2B6.Clinical pharmacology and therapeutics · 2021
    Review
  17. Article
  18. Association ofPharmacogenomics and personalized medicine · 2021
    Article
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

B A MagandaDepartment of Pharmaceutics, School of Pharmacy, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
O M S MinziUnit of Pharmacology and Therapeutics, School of Pharmacy, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
E NgaimisiUnit of Pharmacology and Therapeutics, School of Pharmacy, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
A A R KamuhabwaUnit of Pharmacology and Therapeutics, School of Pharmacy, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
E AklilluDivision of Clinical Pharmacology, Department of Laboratory of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden.
Muhimbili University of Health and Allied Sciences · TZKarolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the influence of efavirenz (EFV)- or nevirapine (NVP)-based antiretroviral therapy (ART) on lumefantrine plasma exposure in HIV-malaria-coinfected patients and implication of pharmacogenetic variations. A total of 269 HIV patients with uncomplicated falciparum malaria on NVP-based ART (NVP-arm), EFV-based ART (EFV-arm) or not receiving ART (control-arm) were enrolled and treated with artemether-lumefantrine. Day-7 lumefantrine, baseline EFV and NVP plasma concentrations, and CYP2B6*6,*18, CYP3A4*1B, CYP3A5*3,*6,*7, ABCB1 c.3435C>T and ABCB1 c.4036A>G genotypes were determined. The median day-7 lumefantrine plasma concentration was significantly lower in the EFV-arm compared with that in NVP- and control-arm. High EFV plasma concentrations and CYP2B6*6/*6 genotype significantly correlated with low lumefantrine plasma concentrations and high rate of recurrent parasitemia. No significant effect of NVP-based ART on lumefantrine exposure was observed. In conclusion, owing to long-term CYP3A induction, EFV-based ART cotreatment significantly reduces lumefantrine plasma exposure leading to poor malaria treatment response, which is more pronounced in CYP2B6 slow metabolizers.

Indexed as

AlkynesAnti-HIV AgentsAntimalarialsArtemetherArtemisininsATP Binding Cassette Transporter, Subfamily BBenzoxazinesCase-Control StudiesCoinfectionCyclopropanesCytochrome P-450 CYP2B6Cytochrome P-450 CYP3ADrug AntagonismDrug Therapy, CombinationEthanolaminesFluorenesABCB1 protein, humanAlkynesAnti-HIV AgentsAntimalarialsArtemetherArtemisininsATP Binding Cassette Transporter, Subfamily BBenzoxazinesCyclopropanesCytochrome P-450 CYP2B6Cytochrome P-450 CYP3AefavirenzEthanolaminesFluorenesLumefantrineNevirapine

Identifiers

PMID25963334
OpenAlexW1607589451

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.