Evidence map›Paper›PMID 18193075›Full record

ArticleBritish journal of pharmacology2008

Population pharmacokinetic modelling of the enterohepatic recirculation of diclofenac and rofecoxib in rats.

D R H Huntjens, A Strougo, A Chain, A Metcalf, S Summerfield, D J M Spalding, M Danhof, O Della Pasqua

Erratum issuedAbstract read
In one paragraph

Article in British journal of pharmacology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. 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
  2. Trial
  3. Pharmacokinetics and Efficacy of a Cyanide-Neutralizing [MoJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Population pharmacokinetic modelling of indium-based quantum dot nanoparticles: preclinical in vivo studies.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2021
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Cattle bile aggravates diclofenac sodium-induced small intestinal injury in mice.Evidence-based complementary and alternative medicine : eCAM · 2011
    Article
  15. cPLA2 is protective against COX inhibitor-induced intestinal damage.Toxicological sciences : an official journal of the Society of Toxicology · 2010
    Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors.

D R H HuntjensDivision of Pharmacology, Leiden/Amsterdam Center for Drug Research, Leiden University, Leiden, The Netherlands.
A Strougo
A Chain
A Metcalf
S Summerfield
D J M Spalding
M Danhof
O Della Pasqua

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeEnterohepatic recirculation (EHC) is a common pharmacokinetic phenomenon that has been poorly modelled in animals. The presence of EHC leads to the appearance of multiple peaks in the concentration-time profile and increased exposure, which may have implications for drug effect and extrapolation across species. The aim of this investigation was to develop a population pharmacokinetic model for diclofenac and rofecoxib that describes EHC and to assess its consequence for the pharmacodynamics of both drugs. EXPERIMENTAL APPROACH: The pharmacokinetics of diclofenac and rofecoxib was characterized in male rats following intravenous, intraperitoneal and oral administration. Blood samples were collected at pre-defined time points after dosing to determine plasma concentrations over time. A parametric approach using nonlinear mixed effects modelling was applied to describe EHC, whilst simulations were used to evaluate its impact on PGE(2) inhibition. KEY

resultsFor diclofenac, EHC was described by a compartmental model with periodic transfer rate and metabolite formation rate. For rofecoxib, EHC modelling required a conversion compartment with first-order recycling rate and lag time. Based on model predictions, EHC causes an increase of 95% in the systemic exposure to diclofenac and of 15% in the exposure to rofecoxib. In addition, EHC prolongs the inhibition of PGE(2) and increases the duration of the anti-inflammatory effect (24 h for rofecoxib 10 mg kg(-1)) without affecting maximum inhibition. CONCLUSIONS AND IMPLICATIONS: Our findings show the relevance of exploring EHC in a quantitative manner to accurately interpret pharmacodynamic findings in vivo, in particular when scaling across species.

Indexed as

Enterohepatic CirculationAdministration, OralAnimalsCyclooxygenase 2 InhibitorsCyclooxygenase InhibitorsDiclofenacDinoprostoneInfusions, IntravenousInjections, IntraperitonealLactonesMaleModels, BiologicalNonlinear DynamicsRatsRats, Sprague-DawleySpecies SpecificityCyclooxygenase 2 InhibitorsCyclooxygenase InhibitorsDiclofenacDinoprostoneLactonesrofecoxibSulfones

Identifiers

PMID18193075
PMCPMC2267282

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.