Evidence map›Paper›PMID 17298483›Full record

ArticleBritish journal of clinical pharmacology2007

Influence of CYP2C9 and CYP2C19 genetic polymorphisms on pharmacokinetics of gliclazide MR in Chinese subjects.

Yifan Zhang, Dayong Si, Xiaoyan Chen, Nan Lin, Yingjie Guo, Hui Zhou, Dafang Zhong

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in British journal of clinical pharmacology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04198948 (Interaction Between Omeprazole and Gliclazide in CYP2C19 Normal/ Ultrarapid Metabolisers), which is not on this map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.4field-weighted citation impact, top 7% 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.

NCT04198948 phase1completednot on this mapstarted 2019, after this paper: background citation

Interaction Between Omeprazole and Gliclazide in CYP2C19 Normal/ Ultrarapid Metabolisers

TypeinterventionalSponsorUniversity of SarajevoRan2019 to 2019Enrolled15ConditionsDiabetes Mellitus, Type 2ArmsOmeprazole, Placebo oral tablet, Gliclazide
3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
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  12. Diabetes: Is There a Future for Pharmacogenomics Guided Treatment?Clinical pharmacology and therapeutics · 2019
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  13. Pharmacogenomics and personalized medicine · 2019
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  16. Pharmacogenetics of Antidiabetic Drugs.Advances in pharmacology (San Diego, Calif.) · 2018
    Review
  17. Review
  18. 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

7 authors at 1 institution in 1 country.

Yifan ZhangShanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.
Dayong Si
Xiaoyan Chen
Nan Lin
Yingjie Guo
Hui Zhou
Dafang Zhong
Jilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo investigate the influence of CYP2C9 and CYP2C19 genetic polymorphisms on the pharmacokinetics of gliclazide modified release (MR) in healthy Chinese subjects.

methodsIn a single-dose pharmacokinetic study, 24 healthy male subjects with various CYP2C9 and CYP2C19 genotypes received an oral dose of 30 mg gliclazide MR and plasma was sampled for 72 h postdose. In a multiple-dose pharmacokinetic study, 17 other CYP2C9*1 homozygotes with various CYP2C19 genotypes received 30 mg gliclazide MR once daily for 6 days and plasma was sampled after the last dose. The plasma concentrations of gliclazide were measured using a validated LC/MS/MS method. CYP2C9 and CYP2C19 genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism analysis.

resultsIn the single-dose study, no significant difference in any pharmacokinetic parameters was found in CYP2C9*1/*1, *1/*3 and *1/*13 subjects. In contrast, the AUC(0-infinity) of gliclazide was significantly increased by 3.4-fold [95% confidence interval (CI) 2.5, 4.7; P < 0.01] in CYP2C19 poor metabolizer (PM) subjects compared with CYP2C19*1 homozygotes. The half-life (t(1/2)) was prolonged from 15.1 to 44.5 h (P < 0.01). Similar differences were found in the multiple-dose study. The parameters of gliclazide AUC(ss), AUC(0-infinity) and C(max) were 3.4-fold (95% CI 2.9, 4.0), 4.5-fold (95% CI 3.8, 5.4) and 2.9-fold (95% CI 2.4, 3.4) increased (P < 0.01) in CYP2C19 PM subjects, respectively, compared with CYP2C19*1 homozygotes, and t(1/2) was increased from 13.5 to 24.6 h (P < 0.01).

conclusionsThe pharmacokinetics of gliclazide MR are affected mainly by CYP2C19 genetic polymorphism instead of CYP2C9 genetic polymorphism.

Indexed as

AdultAryl Hydrocarbon HydroxylasesAsian PeopleBlood GlucoseCytochrome P-450 CYP2C19Cytochrome P-450 CYP2C9Dose-Response Relationship, DrugGenotypeGliclazideHumansHypoglycemic AgentsMaleMixed Function OxygenasesPolymorphism, GeneticAryl Hydrocarbon HydroxylasesBlood GlucoseCYP2C19 protein, humanCYP2C9 protein, humanCytochrome P-450 CYP2C19Cytochrome P-450 CYP2C9GliclazideHypoglycemic AgentsMixed Function Oxygenases

Identifiers

PMID17298483
PMCPMC2000619
OpenAlexW2001304016

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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.