Evidence map›Paper›PMID 29377228›Full record

Trial reportBritish journal of clinical pharmacology2018

Developmental pharmacogenetics of CYP2C19 in neonates and young infants: omeprazole as a probe drug.

Wei Zhao, Stéphanie Leroux, Valérie Biran, Evelyne Jacqz-Aigrain

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Trial
  2. Clopidogrel Dosing Scheme in Pediatric Cardiac Patients 0-24 Months Old Using P2YThe journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2026
    Article
  3. Evaluation ofJournal of cardiovascular development and disease · 2026
    Article
  4. Impact ofInternational journal of molecular sciences · 2024
    Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. 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

4 authors at 3 institutions in 2 countries.

Wei ZhaoDepartment of Clinical Pharmacy, School of Pharmaceutical Sciences, Shandong University, Jinan, China.ORCID 0000-0002-1830-338X
Stéphanie LerouxDepartment of Paediatric Pharmacology and Pharmacogenetics, Robert Debré University Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France.
Valérie BiranDepartment of Neonatology, Robert Debré University Hospital, Assistance Publiqqiue - Hôpitaux de Paris, Paris, France.
Evelyne Jacqz-AigrainDepartment of Paediatric Pharmacology and Pharmacogenetics, Robert Debré University Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France.ORCID 0000-0002-4285-7067
Assistance Publique – Hôpitaux de Paris · FRInserm · FRShandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsAlthough substantial progress has been made in understanding of ontogeny of drug metabolism, there is still a gap of knowledge in developmental pharmacogenetics in neonates. We hypothesized that both age and pharmacogenetics might explain the developmental pattern of CYP2C19. We conducted a population pharmacokinetic-pharmacogenetic study to quantify the developmental pharmacogenetics of CYP2C19 in neonates and young infants using omeprazole as a probe drug.

methodsPharmacokinetic samples were collected from 51 Caucasian neonates and young infants, who were receiving omeprazole treatment. Population pharmacokinetic-pharmacogenetic analysis of omeprazole and its metabolites was performed using NONMEM.

resultsData fitted a one-compartment parent and metabolite model with first-order absorption and elimination. CYP2C19 and CYP3A4 are predominantly involved in the metabolism of omeprazole despite their relatively low activities compared to adults. The clearance of omeprazole converted to 5-hydroxy-omeprazole (CL

conclusionsDevelopmental pharmacogenetics of CYP2C19 was quantitatively described in neonates and young infants using omeprazole as a probe drug. Our findings emphasize the importance of semiphysiological developmental pharmacokinetic modelling approach when evaluating developmental pharmacogenetics of drugs with multiple routes of biotransformation.

Indexed as

Age FactorsATP Binding Cassette Transporter, Subfamily B, Member 1Cytochrome P-450 CYP2C19FemaleGenotypeHeterozygoteHomozygoteHumansInfantInfant, NewbornMaleModels, BiologicalOmeprazolePhenotypePolymorphism, GeneticProton Pump InhibitorsATP Binding Cassette Transporter, Subfamily B, Member 1CYP2C19 protein, humanCytochrome P-450 CYP2C19OmeprazoleProton Pump InhibitorsABCB1CYP2C19neonatesontogenypharmacogeneticspharmacokinetics

Identifiers

PMID29377228
PMCPMC5903239
OpenAlexW2793456115

What OpenQuestion holds

Textmetadata
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.