Evidence map›Paper›PMID 22418828›Full record

Trial reportEuropean journal of clinical pharmacology2012

CYP2C19 polymorphism affects single-dose pharmacokinetics of oral pantoprazole in healthy volunteers.

Barbara Gawrońska-Szklarz, Urszula Adamiak-Giera, Elżbieta Wyska, Mateusz Kurzawski, Wanda Gornik, Maria Kaldonska, Marek Drozdzik

Open access · hybridAbstract readClinical TrialComparative Study
In one paragraph

Trial report in European journal of clinical pharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
6.9field-weighted citation impact, top 3% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Anti-interleukin-6 antibody clazakizumab in late antibody-mediated kidney transplant rejection: effect on cytochrome P450 drug metabolism.Transplant international : official journal of the European Society for Organ Transplantation · 2021
    Trial
  4. Clopidogrel in Critically Ill Patients.Clinical pharmacology and therapeutics · 2018
    Trial
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Integrated models of population pharmacokinetics and exposure response to optimize dosage regimen for anaprazole sodium in duodenal ulcer.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. The impact ofFrontiers in pharmacology · 2023
    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

7 authors at 2 institutions in 1 country.

Barbara Gawrońska-SzklarzDepartment of Pharmacology, Pomeranian Medical University, Powstancow Wlkp 72, 70-111 Szczecin, Poland.
Urszula Adamiak-Giera
Elżbieta Wyska
Mateusz Kurzawski
Wanda Gornik
Maria Kaldonska
Marek Drozdzik
Pomeranian Medical University · PLJagiellonian University · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesPantoprazole is metabolized by cytochrome P450 2 C19, which shows genetic polymorphism. The effect of CYP2C19 polymorphism on single-dose pharmacokinetics of oral pantoprazole in healthy volunteers was evaluated.

methodsPantoprazole pharmacokinetics was determined in 32 healthy volunteers after a 40-mg single oral dose of the drug.

resultsCarriers of CYP2C19*2/*2 (n = 2) were characterized by higher, starting from 3.5 h post dose, plasma concentrations of pantoprazole in comparison to wild-type (CYP2C19*1/*1, n = 6) volunteers. In subjects with CYP2C19*17/*17 genotype (n = 6) significantly lower plasma concentrations of the drug vs CYP2C19*1/*1 carriers, were observed from 3.0 h after oral pantoprazole administration. Carriers of CYP2C19*1/*17 (n = 6) and CYP2C19*2/*17 (n = 6) displayed concentration-time profiles comparable to wild-type subjects. CYP2C19*2/*2 volunteers showed a decrease in terminal elimination rate constant (λ(z)) by 83.3%, prolongation of terminal half-life (t(½)) by 572%, a rise in area under the concentration-time curve (AUC) and mean residence time (MRT) by 506% and 259% respectively. Heterozygotes, i.e.. CYP2C19*1/*2 vs CYP2C19*1/*1 were characterized by higher AUC (4.38 ± 1.00 mg·h/L vs 3.00 ± 1.02 mg·h/L, p < 0.05) and C(max) (2.13 ± 0.42 mg/L vs 1.61 ± 0.35 mg/L, p < 0.05) respectively. A significant reduction in MRT (3.83 ± 0.82 h vs 2.73 ± 0.23 h, p < 0.05) in carriers of CYP2C19*17/*17 vs CYP2C19*1/*1 genotypes was observed. Population modeling confirmed the influence of *1/*2, *2/*2, and *17/*17 genotypes on the pharmacokinetics of pantoprazole. The lowest population oral clearance was assessed in the carriers of genotype *2/*2 (3.68 L/h) and the highest value in subjects with genotype *17/*17 (31.13 L/h).

conclusionThese data suggest that CYP2C19 polymorphism is an important determinant of pantoprazole pharmacokinetics.

Indexed as

Polymorphism, Genetic2-PyridinylmethylsulfinylbenzimidazolesAdministration, OralAdultArea Under CurveAryl Hydrocarbon HydroxylasesBiotransformationCytochrome P-450 CYP2C19FemaleHalf-LifeHeterozygoteHomozygoteHumansMaleMetabolic Clearance RateModels, Biological2-PyridinylmethylsulfinylbenzimidazolesAryl Hydrocarbon HydroxylasesCYP2C19 protein, humanCytochrome P-450 CYP2C19PantoprazoleProton Pump Inhibitors

Identifiers

PMID22418828
PMCPMC3419350
OpenAlexW2020744962

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Registered trials

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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.