Evidence map›Paper›PMID 19032173›Full record

Trial reportBritish journal of clinical pharmacology2008

Inhibition of flucloxacillin tubular renal secretion by piperacillin.

Cornelia B Landersdorfer, Carl M J Kirkpatrick, Martina Kinzig, Jürgen B Bulitta, Ulrike Holzgrabe, Fritz Sörgel

Open access · bronzeAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

17 citing papers in PubMed, 37 citations in OpenAlex.

  1. Trial
  2. Observational
  3. Combination with a FtsZ inhibitor potentiates the in vivo efficacy of oxacillin against methicillin-resistantMedicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2022
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  11. Incidence of Acute Kidney Injury Among Critically Ill Patients With Brief Empiric Use of Antipseudomonal β-Lactams With Vancomycin.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019
    Article
  12. Article
  13. Renal Drug Transporters and Drug Interactions.Clinical pharmacokinetics · 2017
    Review
  14. Article
  15. Article
  16. Article
  17. 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 at 3 institutions in 2 countries.

Cornelia B LandersdorferIBMP - Institute for Biomedical and Pharmaceutical Research, Nürnberg-Heroldsberg, Germany.
Carl M J Kirkpatrick
Martina Kinzig
Jürgen B Bulitta
Ulrike Holzgrabe
Fritz Sörgel
Institute for Biomedical and Pharmaceutical Research · DEUniversity of Queensland · AUUniversity of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo explore the extent, time course, site(s), mechanism and possible clinical relevance of the pharmacokinetic (PK) interaction between piperacillin and flucloxacillin.

methodsA single-dose, randomized, six-way crossover study in 10 healthy volunteers where all subjects received all of the following as 5-min intravenous infusions: (i) 1.5 g piperacillin, (ii) 0.5 g flucloxacillin, (iii) 1.5 g piperacillin + 0.5 g flucloxacillin, (iv) 3 g piperacillin, (v) 1 g flucloxacillin, and (vi) 3 g piperacillin + 1 g flucloxacillin. Drug concentrations in plasma and urine were determined by high-performance liquid chromatography. WinNonlin was used for PK modelling and statistics.

resultsPiperacillin significantly decreased the renal clearance of flucloxacillin from 5.44 to 2.29 l h(-1) (medians, P < 0.01) and the nonrenal clearance of flucloxacillin from 2.67 to 1.80 l h(-1) (P < 0.01). The renal clearance of flucloxacillin was reduced to 45% (point estimate, 90% confidence interval 40 to 50%) and the nonrenal clearance to 66% (59, 73). The extent of interaction was larger at the higher doses. Competitive inhibition of tubular secretion by piperacillin was identified as the most likely mechanism for the decreased renal clearance of flucloxacillin. Piperacillin had a 15-times higher affinity for the renal transporter than flucloxacillin based on the molar ratio. Piperacillin PK was only slightly affected by flucloxacillin.

conclusionsPiperacillin inhibits renal and nonrenal elimination of flucloxacillin. This interaction seems clinically significant, as total clearance was reduced by a factor of 1.5 for the lower and 2.1 for the higher doses. PK interactions, especially with piperacillin, are likely to occur also with other beta-lactam combinations and might be useful to improve the effectiveness of antibacterial treatment.

Indexed as

AdultAnalysis of VarianceAnti-Bacterial AgentsArea Under CurveCross-Over StudiesDose-Response Relationship, DrugDrug Administration ScheduleDrug InteractionsFemaleFloxacillinHumansInfusions, IntravenousKidney Function TestsKidney TubulesMaleMetabolic Clearance RateAnti-Bacterial AgentsFloxacillinPiperacillin

Identifiers

PMID19032173
PMCPMC2661980
OpenAlexW2030094124

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.