Evidence map›Paper›PMID 25199779›Full record

ArticleAntimicrobial agents and chemotherapy2014

Understanding variability in posaconazole exposure using an integrated population pharmacokinetic analysis.

Michael J Dolton, Roger J M Brüggemann, David M Burger, Andrew J McLachlan

Registry-linked trialOpen access · bronzeAbstract 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. It is linked to trial NCT04966234 (Prospective Validation and Clinical Evaluation of a New Posaconazole Dosing Regimen for Children and Adolescents With Cystic Fibrosis and Aspergillus Infection), which is not on this map. Cited by 44 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 3 pooled it
4.0field-weighted citation impact, top 6% 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.

NCT04966234 phase2 / phase3unknown statusnot on this mapstarted 2021, after this paper: background citation

Prospective Validation and Clinical Evaluation of a New Posaconazole Dosing Regimen for Children and Adolescents With Cystic Fibrosis and Aspergillus Infection

TypeinterventionalSponsorBambino Gesù Hospital and Research InstituteRan2021 to 2023Enrolled135ConditionsCystic Fibrosis, AspergillosisArmsPosaconazole 100 MG [Noxafil], Posaconazole 40 MG/ML
3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 3 syntheses or guidelines pooled it, 86 citations in OpenAlex.

  1. Guideline
  2. Updated antimicrobial dosing recommendations for obese patients.Antimicrobial agents and chemotherapy · 2024
    Pooled it
  3. Antifungal pharmacodynamics: Latin America's perspective.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
    Pooled it
  4. Trial
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  6. Trial
  7. Review
  8. Review
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  12. Review
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  20. Systemic Antifungal Therapy for Invasive Pulmonary Infections.Journal of fungi (Basel, Switzerland) · 2023
    Review
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

4 authors at 4 institutions in 2 countries.

Michael J DoltonFaculty of Pharmacy, University of Sydney, Camperdown, Australia Centre For Education and Research on Ageing, Concord Repatriation General Hospital, Concord, Australia.
Roger J M BrüggemannDepartment of Pharmacy, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
David M BurgerDepartment of Pharmacy, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
Andrew J McLachlanFaculty of Pharmacy, University of Sydney, Camperdown, Australia Centre For Education and Research on Ageing, Concord Repatriation General Hospital, Concord, Australia andrew.mclachlan@sydney.edu.au.
Concord Repatriation General Hospital · AURadboud University Medical Center · NLRadboud University Nijmegen · NLUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Posaconazole oral suspension is widely used for antifungal prophylaxis and treatment in immunocompromised patients, with highly variable pharmacokinetics reported in patients due to inconsistent oral absorption. This study aimed to characterize the pharmacokinetics of posaconazole in adults and investigate factors that influence posaconazole pharmacokinetics byusing a population pharmacokinetic approach. Nonlinear mixed-effects modeling was undertaken for two posaconazole studies in patients and healthy volunteers. The influences of demographic and clinical characteristics, such as mucositis, diarrhea, and drug-drug interactions, on posaconazole pharmacokinetics were investigated using a stepwise forward inclusion/backwards deletion procedure. A total of 905 posaconazole concentration measurements from 102 participants were analyzed. A one-compartment pharmacokinetic model with first-order oral absorption with lag time and first-order elimination best described posaconazole pharmacokinetics. Posaconazole relative bioavailability was 55% lower in patients who received posaconazole than in healthy volunteers. Coadministration of proton pump inhibitors (PPIs) or metoclopramide, as well as the occurrence of mucositis or diarrhea, reduced posaconazole relative bioavailability by 45%, 35%, 58%, and 45%, respectively, whereas concomitant ingestion of a nutritional supplement significantly increased bioavailability (129% relative increase). Coadministration of rifampin or phenytoin increased apparent posaconazole clearance by more than 600%, with a smaller increase observed with fosamprenavir (34%). Participant age, weight, or sex did not significantly affect posaconazole pharmacokinetics. Posaconazole absorption was reduced by a range of commonly coadministered medicines and clinical complications, such as mucositis and diarrhea. Avoidance of PPIs and metoclopramide and administration with food or a nutritional supplement are effective strategies to increase posaconazole absorption.

Indexed as

AdultAnticonvulsantsAntiemeticsAntifungal AgentsAnti-HIV AgentsBiological AvailabilityCarbamatesDrug InteractionsDrug Therapy, CombinationFuransHealthy VolunteersHumansMetoclopramideNucleic Acid Synthesis InhibitorsOrganophosphatesPhenytoinAnticonvulsantsAntiemeticsAntifungal AgentsAnti-HIV AgentsCarbamatesfosamprenavirFuransMetoclopramideNucleic Acid Synthesis InhibitorsOrganophosphatesPhenytoinposaconazoleProton Pump InhibitorsRifampinSulfonamidesTriazoles

Identifiers

PMID25199779
PMCPMC4249414
OpenAlexW2127167028

What OpenQuestion holds

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Registered trials

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.