Evidence map›Paper›PMID 20406220›Full record

Trial reportBritish journal of clinical pharmacology2010

Population pharmacokinetics and Bayesian estimator of mycophenolic acid in children with idiopathic nephrotic syndrome.

Wei Zhao, Valéry Elie, Véronique Baudouin, Albert Bensman, Jean Luc André, Karine Brochard, Françoise Broux, Mathilde Cailliez, Chantal Loirat, Evelyne Jacqz-Aigrain

Open access · bronzeAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in British journal of clinical pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

20 citing papers in PubMed, 38 citations in OpenAlex.

  1. Trial
  2. Trial
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  4. Article
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  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Developmental changes of MPA exposure in children.Pediatric nephrology (Berlin, Germany) · 2016
    Article
  17. Article
  18. Paediatric use of mycophenolate mofetil.British journal of clinical pharmacology · 2013
    Review
  19. Article
  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

10 authors at 5 institutions in 2 countries.

Wei ZhaoDepartment of Paediatric Pharmacology and Pharmacogenetics, Clinical Investigation Centre INSERM, Hôpital Robert Debré, Paris, France.
Valéry Elie
Véronique Baudouin
Albert Bensman
Jean Luc André
Karine Brochard
Françoise Broux
Mathilde Cailliez
Chantal Loirat
Evelyne Jacqz-Aigrain
Hôpital Robert-Debré · FRHôpital des Enfants · FRHôpital Armand-Trousseau · FRHôpital Charles-Nicolle · TNHôpital de la Timone · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo develop a population pharmacokinetic model for mycophenolic acid (MPA) in children with idiopathic nephrotic syndrome (INS) treated with mycophenolate mofetil (MMF), identify covariates that explain variability and determine the Bayesian estimator of the area under the concentration-time curve over 12 h (AUC(0-12)).

methodsThe pharmacokinetic model of MMF was described from 23 patients aged 7.4 +/- 3.9 years (range 2.9-14.9) 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 visual predictive check. Bayesian estimator was validated using circular permutation method.

resultsThe population pharmacokinetic parameters were apparent oral clearance 9.7 l h(-1), apparent central volume of distribution 22.3 l, apparent peripheral volume of distribution 250 l, inter-compartment clearance 18.8 l h(-1), absorption rate constant 5.16 h(-1), lag time 0.215 h. The covariate analysis identified body weight and serum albumin as individual factors influencing the apparent oral clearance. Accurate Bayesian estimation of AUC(0-12) was obtained using the combination of three MPA concentrations measured just before (T(0)), 1 and 4 h (T(1) and T(4)) after drug intake with a small error of 0.298 microg h(-1) ml(-1) between estimated and reference AUC(0-12).

conclusionsThe population pharmacokinetic model of MPA was developed in children with INS. A three-point (T(0), T(1) and T(4)h) Bayesian estimator of AUC(0-12) was developed and might be used to investigate the relation between MPA pharmacokinetic and pharmacodynamics in children with INS and determine if there is any indication to monitor MPA exposure in order to improve patient outcome based on individual AUC-controlled MMF dosing.

Indexed as

Administration, OralAdolescentArea Under CurveBayes TheoremChildChild, PreschoolChromatography, High Pressure LiquidEnzyme InhibitorsFemaleHumansImmunosuppressive AgentsMaleModels, BiologicalMycophenolic AcidNephrotic SyndromeProspective StudiesEnzyme InhibitorsImmunosuppressive AgentsMycophenolic Acid

Identifiers

PMID20406220
PMCPMC2848409
OpenAlexW2079209571

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.