Evidence map›Paper›PMID 19566115›Full record

Trial reportClinical pharmacokinetics2009

Population pharmacokinetics of ganciclovir following administration of valganciclovir in paediatric renal transplant patients.

Wei Zhao, Véronique Baudouin, Daolun Zhang, Georges Deschênes, Chantal Le Guellec, Evelyne Jacqz-Aigrain

Abstract readClinical TrialComparative Study
PubMed Publisher
In one paragraph

Trial report in Clinical pharmacokinetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

  1. Trial
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  8. Observational
  9. Review
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  13. Pharmacokinetics of ganciclovir and valganciclovir in the adult horse.Journal of veterinary pharmacology and therapeutics · 2013
    Article
  14. Article
  15. 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

6 authors.

Wei ZhaoDepartment of Paediatric Pharmacology and Pharmacogenetics, Hôpital Robert Debré, Paris, France.
Véronique Baudouin
Daolun Zhang
Georges Deschênes
Chantal Le Guellec
Evelyne Jacqz-Aigrain

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo develop a population pharmacokinetic model for valganciclovir in paediatric renal transplant recipients, identify covariates that explain variability, and determine valganciclovir dosage regimens for cytomegalovirus (CMV) prophylaxis in children.

methodsThe pharmacokinetics of valganciclovir were described with plasma concentrations from 22 patients (age range 3-17 years) using nonlinear mixed-effects modelling (NONMEM) software. A two-compartment model with lag-time and first-order absorption and elimination was developed. The final model was validated using a bootstrap and visual predictive check. The dosage regimens of valganciclovir for CMV prophylaxis in children were simulated using the final model.

resultsThe mean population pharmacokinetic parameters were apparent systemic clearance (CL) 10.1L/h, apparent central volume of distribution 5.2 L, apparent peripheral volume of distribution 30.7 L, inter-tissue clearance 3.97 L/h, absorption rate constant 0.369 h-1 and lag-time 0.743 h. The covariate analysis identified creatinine clearance (CL(CR)) and bodyweight (WT) as individual factors influencing the apparent oral clearance: CL= 8.04 x (CL(CR)/89)(2.93) + 3.62 x (WT/28) L/h. The results of the simulation showed that for a typical patient (WT 28 kg and CL(CR) 89 mL/min), an area under the plasma concentration-time curve of 43 +/- 10.6 mg x h/mL will be achieved with valganciclovir 500 mg once daily.

conclusionThe dosage regimens of valganciclovir for CMV prophylaxis have been defined using the final population pharmacokinetic model based on WT and CLCR for paediatric renal transplantation patients.

Indexed as

AdolescentChildChild, PreschoolDrug InteractionsDrug Therapy, CombinationFemaleGanciclovirGraft RejectionHumansKidney TransplantationMalePopulation GroupsTissue DistributionValganciclovirGanciclovirValganciclovir

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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.