Evidence map›Paper›PMID 42112094›Full record

Observational studyDrug design, development and therapy2026

Optimal Piperacillin/Tazobactam Dosing in Adults with Low Body Weight: A Population Pharmacokinetic and Simulation-Based Study.

Yu-Ju Tseng, Liang Juan, Chih-Hsun Tai, Chien-Chih Wu

Abstract readObservational Study
In one paragraph

Observational study in Drug design, development and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Yu-Ju TsengDepartment of Pharmacy, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Liang JuanSchool of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan.
Chih-Hsun TaiDepartment of Pharmacy, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Chien-Chih WuDepartment of Pharmacy, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.ORCID 0000-0002-9517-2176

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Pharmacokinetic (PK) evidence for optimal piperacillin/tazobactam (TZP) dosing in adults with low body weight (LBW) is limited, and current dosing strategies are typically extrapolated from general populations. Physiological alterations associated with LBW including reduced muscle mass, altered body water distribution and potential for impaired renal function may affect drug exposure, increasing the risk of subtherapeutic treatment or toxicity. This study developed a population PK model of TZP in adults with LBW, and dosing strategies in this population were evaluated on the basis of efficacy and neurotoxicity considerations. Methods: Adults with a body mass index ≤ 18.5 kg/m Results: This study included 29 patients (55 samples). A one compartment model adequately described piperacillin PK, and renal function estimated according to the 2021 CKD-EPI creatinine-cystatin C equation best explained piperacillin clearance. Body weight did not significantly improve model performance. The estimated typical values were 4.89 L/hr [relative standard error (RSE) 19.0%] for clearance and 11.95 L (RSE 36.5%) for volume of distribution, with an eGFR exponent of 1.12 on clearance. In addition, simulations indicated that prolonged infusion and increased dosing frequency improved target attainment, particularly at higher MICs and in patients with preserved or augmented renal clearance. Conversely, patients with renal dysfunction achieved PK/PD targets at lower dosing regimens and exhibited a reduced likelihood of exceeding the neurotoxicity threshold. Conclusion: In adults with LBW, renal function and PK/PD principles should guide TZP dosing. Model-informed strategies to optimize infusion duration and dosing frequency may improve efficacy and limit neurotoxicity.

Indexed as

Anti-Bacterial AgentsPiperacillin, Tazobactam Drug CombinationAdultAgedBody WeightDose-Response Relationship, DrugFemaleHumansMaleMicrobial Sensitivity TestsMiddle AgedModels, BiologicalMonte Carlo MethodProspective StudiesAnti-Bacterial AgentsPiperacillin, Tazobactam Drug Combinationlow body weightmonte carlo simulationpiperacillin/tazobactampopulation pharmacokinetics

Identifiers

PMID42112094
PMCPMC13157127

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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.