Evidence map›Paper›PMID 24798288›Full record

ArticleAntimicrobial agents and chemotherapy2014

Individualization of piperacillin dosing for critically ill patients: dosing software to optimize antimicrobial therapy.

T W Felton, J A Roberts, T P Lodise, M Van Guilder, E Boselli, M N Neely, W W Hope

Open access · hybridAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.

  1. A Critique of Pharmacokinetic Calculators for Drug Dosing Individualization.European journal of drug metabolism and pharmacokinetics · 2020
    Pooled it
  2. Trial
  3. Population pharmacokinetics of teicoplanin in children.Antimicrobial agents and chemotherapy · 2014
    Trial
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  7. Review
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  10. Dose optimization of piperacillin/tazobactam, cefepime, and ceftazidime for carbapenem-resistant Pseudomonas aeruginosa isolates in Türkiye.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
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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

7 authors at 6 institutions in 4 countries.

T W FeltonThe University of Manchester, Manchester Academic Health Science Centre, NIHR Clinical Research Facility in Respiratory Medicine, University Hospital of South Manchester NHS Foundation Trust, Manchester, United Kingdom.
J A RobertsBurns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane and Royal Brisbane and Women's Hospital Brisbane, Queensland, Australia.
T P LodiseAlbany College of Pharmacy and Health Sciences, Albany, New York, USA.
M Van GuilderLaboratory of Applied Pharmacokinetics, University of Southern California, School of Medicine, Los Angeles, California, USA.
E BoselliDepartment of Anaesthesiology and Intensive Care, Édouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France.
M N NeelyLaboratory of Applied Pharmacokinetics, University of Southern California, School of Medicine, Los Angeles, California, USA.
W W HopeDepartment of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom william.hope@liverpool.ac.uk.
University of Southern California · USAlbany College of Pharmacy and Health Sciences · USHospices Civils de Lyon · FRUniversity of Liverpool · GBUniversity of Manchester · GBUniversity of Queensland · AU

Funding

Populaton Pharmacokinetic Modeling and Optimal ControlR01GM068968 · NIGMS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI NEELY, MICHAEL N. · 2003 to 2015
$3.9M
Ontogeny of Voriconazole Pharmaockinetics and MetabolismR01HD070886 · NICHD · UNIVERSITY OF SOUTHERN CALIFORNIA · PI NEELY, MICHAEL N. · 2012 to 2016
$2.5M
Department of Health CS/08/08/10Medical Research Council G1000417Medical Research Council G1000417/94909NICHD NIH HHS R01 HD070886NIGMS NIH HHS R01 GM068968
6 · The paper itself

Abstract

Piperacillin-tazobactam is frequently used for empirical and targeted therapy of infections in critically ill patients. Considerable pharmacokinetic (PK) variability is observed in critically ill patients. By estimating an individual's PK, dosage optimization Bayesian estimation techniques can be used to calculate the appropriate piperacillin regimen to achieve desired drug exposure targets. The aim of this study was to establish a population PK model for piperacillin in critically ill patients and then analyze the performance of the model in the dose optimization software program BestDose. Linear, with estimated creatinine clearance and weight as covariates, Michaelis-Menten (MM) and parallel linear/MM structural models were fitted to the data from 146 critically ill patients with nosocomial infection. Piperacillin concentrations measured in the first dosing interval, from each of 8 additional individuals, combined with the population model were embedded into the dose optimization software. The impact of the number of observations was assessed. Precision was assessed by (i) the predicted piperacillin dosage and by (ii) linear regression of the observed-versus-predicted piperacillin concentrations from the second 24 h of treatment. We found that a linear clearance model with creatinine clearance and weight as covariates for drug clearance and volume of distribution, respectively, best described the observed data. When there were at least two observed piperacillin concentrations, the dose optimization software predicted a mean piperacillin dosage of 4.02 g in the 8 patients administered piperacillin doses of 4.00 g. Linear regression of the observed-versus-predicted piperacillin concentrations for 8 individuals after 24 h of piperacillin dosing demonstrated an r(2) of >0.89. In conclusion, for most critically ill patients, individualized piperacillin regimens delivering a target serum piperacillin concentration is achievable. Further validation of the dosage optimization software in a clinical trial is required.

Indexed as

Drug Dosage CalculationsAdolescentAdultAgedAged, 80 and overAnti-Bacterial AgentsBacterial InfectionsBayes TheoremCreatinineCritical IllnessDrug Therapy, Computer-AssistedFemaleHumansMaleMetabolic Clearance RateMicrobial Sensitivity TestsAnti-Bacterial AgentsCreatininePenicillanic AcidPiperacillinPiperacillin, Tazobactam Drug Combination

Identifiers

PMID24798288
PMCPMC4068511
OpenAlexW2105689903

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.