Evidence map›Paper›PMID 19628728›Full record

Trial reportJournal of clinical pharmacology2009

Interindividual variability in pharmacokinetics of generic nucleoside reverse transcriptase inhibitors in TB/HIV-coinfected Ghanaian patients: UGT2B7*1c is associated with faster zidovudine clearance and glucuronidation.

Awewura Kwara, Margaret Lartey, Isaac Boamah, Naser L Rezk, Joseph Oliver-Commey, Ernest Kenu, Angela D M Kashuba, Michael H Court

Abstract readClinical Trial
In one paragraph

Trial report in Journal of clinical pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.2field-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

24 citing papers in PubMed, 48 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Review
  7. Article
  8. Variability in Human In Vitro Enzyme Kinetics.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  9. Update of the Scientific Opinion on opium alkaloids in poppy seeds.EFSA journal. European Food Safety Authority · 2018
    Article
  10. Article
  11. Article
  12. Article
  13. Individualization of antiretroviral therapy--pharmacogenomic aspect.The Indian journal of medical research · 2015
    Review
  14. Article
  15. PharmGKB summary: zidovudine pathway.Pharmacogenetics and genomics · 2012
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

8 authors at 5 institutions in 2 countries.

Awewura KwaraWarren Alpert Medical School of Brown University, Providence, Rhode Island, USA. akwara@lifespan.org
Margaret Lartey
Isaac Boamah
Naser L Rezk
Joseph Oliver-Commey
Ernest Kenu
Angela D M Kashuba
Michael H Court
Korle Bu Teaching Hospital · GHUniversity of Ghana · GHUniversity of North Carolina at Chapel Hill · USBrown University · USTufts University · US

Funding

Virology, Immunology, and Microbiology CoreP30AI050410 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVID M. MARGOLIS · 2001 to 2026
$76.9M
Translational ScienceP30AI042853 · NIAID · MIRIAM HOSPITAL · PI LARRY K BROWN · 1998 to 2026
$51.7M
MOLECULAR DETERMINANTS OF UGT FUNCTIONR01GM061834 · NIGMS · TUFTS UNIVERSITY BOSTON · PI COURT, MICHAEL H · 2000 to 2010
$2.4M
Concurrent HAART and Tuberculosis Treatment: Drug to Drug InteractionsK23AI071760 · NIAID · MIRIAM HOSPITAL · PI KWARA, AWEWURA JACOB · 2006 to 2010
$635k
NIAID NIH HHS AI50410NIAID NIH HHS K23 AI071760NIAID NIH HHS P30 AI042853NIAID NIH HHS P30AI042853NIAID NIH HHS P30 AI050410NIGMS NIH HHS R01 GM061834NIGMS NIH HHS R01GM061834
6 · The paper itself

Abstract

There are limited data on the pharmacokinetics of generic nucleoside reverse transcriptase inhibitors (NRTIs) in native African populations, in whom they are commonly used. The authors characterized the pharmacokinetics of lamivudine (n = 27), zidovudine (n = 16), and stavudine (n = 11) in human immunodeficiency virus (HIV)/tuberculosis (TB)-coinfected Ghanaians and evaluated associations between zidovudine metabolism and UDP-glucuronosyltransferase (UGT) 2B7 polymorphisms. Lamivudine, zidovudine, and stavudine apparent oral clearance (CL/F) values (mean +/- SD [% coefficient of variation [CV]) were 7.3 +/- 2.8 (39%), 31.9 +/- 33.6 (106%), and 16.4 +/- 5.8 (35%) mL/min/kg, respectively, whereas half-life values were 4.2 +/- 1.9 (46%), 8.1 +/- 7.9 (98%), and 1.5 +/- 1.0 (65%) hours, respectively. Zidovudine CL/F was 196% higher (P = .004) in UGT2B7*1c (c.735A>G) carriers versus noncarriers. This was confirmed using human liver bank samples (n = 52), which showed 48% higher (P = .020) zidovudine glucuronidation and 33% higher (P = .015) UGT2B7 protein in UGT2B7*1c carriers versus noncarriers. In conclusion, generic NRTI pharmacokinetics in HIV/TB-coinfected Ghanaians are similar to other populations, whereas the UGT2B7*1c polymorphism may explain in part relatively high interindividual variability in zidovudine clearance.

Indexed as

AdultAIDS-Related Opportunistic InfectionsDrug CombinationsDrugs, GenericDrug Therapy, CombinationFemaleGhanaGlucuronidesGlucuronosyltransferaseHalf-LifeHIV InfectionsHumansLamivudineLiverMaleMiddle AgedDrug CombinationsDrugs, GenericGlucuronidesGlucuronosyltransferaseLamivudineReverse Transcriptase InhibitorsStavudineUGT2B7 protein, humanZidovudine

Identifiers

PMID19628728
PMCPMC2749505
OpenAlexW2019888787

What OpenQuestion holds

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LicenceTDM
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.