Evidence map›Paper›PMID 29691732›Full record

ArticleEuropean journal of drug metabolism and pharmacokinetics2018

Impact of the CYP3A5*1 Allele on the Pharmacokinetics of Tacrolimus in Japanese Heart Transplant Patients.

Takaya Uno, Kyoichi Wada, Sachi Matsuda, Yuka Terada, Akira Oita, Atsushi Kawase, Mitsutaka Takada

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Article in European journal of drug metabolism and pharmacokinetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
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  6. Differential Effects of Clotrimazole on X-Ray Crystal Structures of Human Cytochromes P450 3A5 and 3A4.Drug metabolism and disposition: the biological fate of chemicals · 2023
    Article
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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.

Takaya UnoDepartment of Pharmacy, National Cerebral and Cardiovascular Center, Suita, Japan.
Kyoichi WadaDepartment of Pharmacy, National Cerebral and Cardiovascular Center, Suita, Japan.
Sachi MatsudaDepartment of Pharmacy, National Cerebral and Cardiovascular Center, Suita, Japan.
Yuka TeradaDepartment of Pharmacy, National Cerebral and Cardiovascular Center, Suita, Japan.
Akira OitaDepartment of Pharmacy, National Cerebral and Cardiovascular Center, Suita, Japan.
Atsushi KawaseDepartment of Pharmacy, Faculty of Pharmacy, Kindai University, Higashi-osaka, Japan.
Mitsutaka TakadaDivision of Clinical Drug Informatics, Faculty of Pharmacy, Kindai University, Higashi-osaka, Japan. takada@phar.kindai.ac.jp.
Kindai University · JPNational Cerebral and Cardiovascular Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveTacrolimus, a major immunosuppressant used after transplantation, is associated with large interindividual variation involving genetic polymorphisms in metabolic processes. A common variant of the cytochrome P450 (CYP) 3A5 gene, CYP3A5*3, affects blood concentrations of tacrolimus. However, tacrolimus pharmacokinetics at the early stage of transplantation have not been adequately studied in heart transplantation. We retrospectively examined the impact of the CYP3A5 genotype on tacrolimus pharmacokinetics at the early stage of heart transplantation.

methodsThe tacrolimus pharmacokinetic profile was obtained from 65 patients during the first 5 weeks after heart transplantation. Differences in the patients' characteristics and tacrolimus pharmacokinetic parameters between the CYP3A5 expresser (*1/*1 or *1/*3 genotypes) and non-expresser (*3/*3 genotype) groups were assessed by the Chi-square test, Student's t test, or Mann-Whitney U test.

resultsThe CYP3A5 *1/*1, *1/*3, and *3/*3 genotypes were detected in 5, 22, and 38 patients, respectively. All patients started clotrimazole therapy approximately 1 week after starting tacrolimus. Apparent clearance and dose/weight to reach the target trough concentration (C

conclusionSimilar concentration-time curves for tacrolimus were obtained in the expresser and non-expresser groups by dose adjustment based on therapeutic drug monitoring. These results demonstrate the importance of the CYP3A5 genotype in tacrolimus dose optimization based on therapeutic drug monitoring after heart transplantation.

Indexed as

AllelesHeart TransplantationAdultCytochrome P-450 CYP3ADose-Response Relationship, DrugDrug MonitoringFemaleGene ExpressionGenotypeHumansImmunosuppressive AgentsMaleMiddle AgedPolymorphism, GeneticRetrospective StudiesTacrolimusCYP3A5 protein, humanCytochrome P-450 CYP3AImmunosuppressive AgentsTacrolimus

Identifiers

PMID29691732
OpenAlexW2800037571

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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.