Evidence map›Paper›PMID 18781382›Full record

ArticleJournal of pharmacokinetics and pharmacodynamics2008

Semiparametric mixed-effects analysis of PK/PD models using differential equations.

Yi Wang, Kent M Eskridge, Shunpu Zhang

Abstract read
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In one paragraph

Article in Journal of pharmacokinetics and pharmacodynamics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the 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.

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

2 citing papers in PubMed.

  1. Using spline-enhanced ordinary differential equations for PK/PD model development.Journal of pharmacokinetics and pharmacodynamics · 2008
    Article
  2. Semiparametric mixed-effects analysis of PK/PD models using differential equations.Journal of pharmacokinetics and pharmacodynamics · 2008
    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.

Yi WangDepartment of Statistics, University of Nebraska-Lincoln, Lincoln, NE 68583-0963, USA.
Kent M Eskridge
Shunpu Zhang

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Motivated by the use of semiparametric nonlinear mixed-effects modeling on longitudinal data, we develop a new semiparametric modeling approach to address potential structural model misspecification for population pharmacokinetic/pharmacodynamic (PK/PD) analysis. Specifically, we use a set of ordinary differential equations (ODEs) with form dx/dt = A(t)x + B(t) where B(t) is a nonparametric function that is estimated using penalized splines. The inclusion of a nonparametric function in the ODEs makes identification of structural model misspecification feasible by quantifying the model uncertainty and provides flexibility for accommodating possible structural model deficiencies. The resulting model will be implemented in a nonlinear mixed-effects modeling setup for population analysis. We illustrate the method with an application to cefamandole data and evaluate its performance through simulations.

Indexed as

Models, StatisticalPharmacokineticsAlgorithmsHumansMandelic AcidsMuscarinic AntagonistsNonlinear DynamicsPharmacologySoftwareMandelic AcidsMuscarinic Antagonistsoxybutynin

Identifiers

What OpenQuestion holds

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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.