Evidence map›Paper›PMID 22409261›Full record

ArticlePaediatric drugs2012

From adults to children: simulation-based choice of an appropriate sparse-sampling schedule.

Stefanie Reif, Marcus Schultze-Mosgau, Gabriele Sutter

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Paediatric drugs, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00468819 (Open-label Multi-center Study of Magnetic Resonance Imaging), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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.

NCT00468819 phase1completednot on this map

Open-label Multi-center Study of Magnetic Resonance Imaging (MRI) With 0.1 mmol/kg Body Weight (BW) Gadavist (1.0 M) to Assess Pharmacokinetics, Safety and Tolerability in Children.

TypeinterventionalSponsorBayerRan2007 to 2008Enrolled140ConditionsMagnetic Resonance ImagingArmsGadobutrol (Gadavist, Gadovist, BAY86-4875)
3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. 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

3 authors.

Stefanie ReifBayer Healthcare, Berlin, Germany.
Marcus Schultze-Mosgau
Gabriele Sutter

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccording to the International Conference on Harmonisation guideline E11, pharmacokinetic (PK) bridging studies can be applied to support pediatric drug development. However, for PK studies in infants and children the sampling schedule needs to be optimized to minimize the number of blood samples per individual.

objectiveThe aim of this study was to describe how clinical trial simulations (CTS) based on adult data were used to select an appropriate sparse-sampling schedule for a future pediatric population PK (popPK) study.

methodsA popPK model for gadobutrol (Gadovist®) was developed using data from a phase I study in adults. This model was used for CTS to select the most appropriate sparse-sampling schedule that met predefined acceptance criteria. This sampling schedule was applied in a pediatric clinical phase I/III study. Non-linear mixed-effects modeling was used for PK modeling and simulations.

resultsAn appropriate sampling schedule requiring only three blood samples per patient was selected and successfully applied in a pediatric study with a gadobutrol standard dose of 0.1 mmol/kg bodyweight. A popPK analysis was performed to determine individual PK parameters in the pediatric study population.

conclusionsA priori evaluation of selected sampling schedules by simulation from adult data provides a useful tool for efficient planning of pediatric studies.

Indexed as

AdultAge FactorsBlood Specimen CollectionBody WeightChecklistChildClinical Trials, Phase I as TopicClinical Trials, Phase III as TopicContrast MediaHumansModels, BiologicalNeoplasmsOrganometallic CompoundsPractice Guidelines as TopicRandomized Controlled Trials as TopicReproducibility of ResultsContrast MediagadobutrolOrganometallic Compounds

Identifiers

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Registered trials

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.