Evidence map›Paper›PMID 30949705›Full record

ArticleThe Journal of antimicrobial chemotherapy2019

Pharmacokinetic/pharmacodynamic target attainment analyses to support intravenous and oral lefamulin dose selection for the treatment of patients with community-acquired bacterial pneumonia.

Sujata M Bhavnani, Li Zhang, Jeffrey P Hammel, Christopher M Rubino, Justin C Bader, Helio S Sader, Steven P Gelone, Wolfgang W Wicha, Paul G Ambrose

Abstract read
In one paragraph

Article in The Journal of antimicrobial chemotherapy, 2019. 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
–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

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

  1. Pooled it
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  9. Review
  10. In vitro susceptibility of common bacterial pathogens causing respiratory tract infections in Canada to lefamulin, a new pleuromutilin.Journal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada · 2021
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  14. Clinical Utility of Lefamulin: If Not Now, When?Current infectious disease reports · 2020
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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

9 authors.

Sujata M BhavnaniInstitute for Clinical Pharmacodynamics, Schenectady, NY, USA.
Li ZhangInstitute for Clinical Pharmacodynamics, Schenectady, NY, USA.
Jeffrey P HammelInstitute for Clinical Pharmacodynamics, Schenectady, NY, USA.
Christopher M RubinoInstitute for Clinical Pharmacodynamics, Schenectady, NY, USA.
Justin C BaderInstitute for Clinical Pharmacodynamics, Schenectady, NY, USA.
Helio S SaderJMI Laboratories, North Liberty, IA, USA.
Steven P GeloneNabriva Therapeutics US, Inc., King of Prussia, PA, USA.
Wolfgang W WichaNabriva Therapeutics GmbH, Vienna, Austria.
Paul G AmbroseInstitute for Clinical Pharmacodynamics, Schenectady, NY, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesLefamulin is a semi-synthetic intravenous (iv) and oral pleuromutilin antibiotic active against community-acquired bacterial pneumonia (CABP) pathogens. Pharmacokinetic/pharmacodynamic (PK/PD) target attainment analyses were carried out to evaluate lefamulin 150 mg iv q12h and 600 mg orally q12h under fed and fasted conditions for the treatment of patients with CABP.

methodsThe analyses undertaken used a population PK model based on Phase 1 PK data, non-clinical PK/PD targets for efficacy and in vitro surveillance data for Streptococcus pneumoniae (SP) and Staphylococcus aureus (SA), and Monte Carlo simulation. Percentage probabilities of PK/PD target attainment by MIC on day 1 were determined using median total-drug epithelial lining fluid (ELF) and free-drug plasma AUC:MIC ratio targets associated with 1 and 2 log10 cfu reductions from baseline.

resultsPercentage probabilities of attaining the total-drug ELF AUC:MIC ratio target for a 1 log10 cfu reduction from baseline for SP were ≥99.2% at the MIC90 of 0.12 mg/L and 96.7%, 82.1% and 96.3% for iv and oral dosing regimens under fed and fasted conditions, respectively, at the MIC99 of 0.25 mg/L. Percentage probabilities of attaining the free-drug plasma AUC:MIC target for the same endpoint at the SP MIC99 were 100% for each regimen. For the SA MIC90 of 0.12 mg/L and AUC:MIC ratio targets for the same endpoint, percentage probabilities were 92.7%-100% for iv and oral dosing regimens.

conclusionsThese data provide support for lefamulin 150 mg iv q12h and 600 mg orally q12h for the treatment of patients with CABP and suggest that doses may not need to be taken under fasted conditions.

Indexed as

Computer SimulationAdministration, IntravenousAdministration, OralAnti-Bacterial AgentsBacteriaCommunity-Acquired InfectionsDiterpenesFastingHumansMicrobial Sensitivity TestsModels, StatisticalMonte Carlo MethodPneumonia, BacterialPolycyclic CompoundsStaphylococcal InfectionsStaphylococcus aureusAnti-Bacterial AgentsDiterpeneslefamulinPolycyclic CompoundsThioglycolates

Identifiers

PMID30949705
PMCPMC6449570

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Registered trials

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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.