Evidence map›Paper›PMID 38459763›Full record

SynthesisThe Journal of antimicrobial chemotherapy2024

What are the optimal pharmacokinetic/pharmacodynamic targets for β-lactamase inhibitors? A systematic review.

Getnet M Assefa, Jason A Roberts, Solomon A Mohammed, Fekade B Sime

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in The Journal of antimicrobial chemotherapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
10.3field-weighted citation impact, top 1% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

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  6. Challenges and opportunities in the management of severe pneumonia. Key concepts from the Seventh Annual Meeting of Spanish Experts 2025.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 3 countries.

Getnet M AssefaCentre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.
Jason A RobertsCentre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.ORCID 0000-0001-6218-435X
Solomon A MohammedCentre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.
Fekade B SimeCentre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia.ORCID 0000-0003-4061-2063
The University of Queensland · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPharmacokinetic/pharmacodynamic (PK/PD) indices are widely used for the selection of optimum antibiotic doses. For β-lactam antibiotics, fT>MIC, best relates antibiotic exposure to efficacy and is widely used to guide the dosing of β-lactam/β-lactamase inhibitor (BLI) combinations, often without considering any PK/PD exposure requirements for BLIs.

objectivesThis systematic review aimed to describe the PK/PD exposure requirements of BLIs for optimal microbiological efficacy when used in combination with β-lactam antibiotics.

methodsLiterature was searched online through PubMed, Embase, Web of Science, Scopus and Cochrane Library databases up to 5 June 2023. Studies that report the PK/PD index and threshold concentration of BLIs approved for clinical use were included. Narrative data synthesis was carried out to assimilate the available evidence.

resultsTwenty-three studies were included. The PK/PD index that described the efficacy of BLIs was fT>CT for tazobactam, avibactam and clavulanic acid and fAUC0-24/MIC for relebactam and vaborbactam. The optimal magnitude of the PK/PD index is variable for each BLI based on the companion β-lactam antibiotics, type of bacteria and β-lactamase enzyme gene transcription levels.

conclusionsThe PK/PD index that describes the efficacy of BLIs and the exposure measure required for their efficacy is variable among inhibitors; as a result, it is difficult to make clear inference on what the optimum index is. Further PK/PD profiling of BLI, using preclinical infection models that simulate the anticipated mode(s) of clinical use, is warranted to streamline the exposure targets for use in the optimization of dosing regimens.

Indexed as

Anti-Bacterial Agentsbeta-Lactamase InhibitorsMicrobial Sensitivity Testsbeta-Lactamasesbeta-LactamsHumansAnti-Bacterial Agentsbeta-Lactamase Inhibitorsbeta-Lactamasesbeta-Lactams

Identifiers

PMID38459763
PMCPMC11062945
OpenAlexW4392619714

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.