Evidence map›Paper›PMID 25910879›Full record

ArticleClinical pharmacokinetics2015

Investigation of Saliva as an Alternative to Plasma Monitoring of Voriconazole.

Kim Vanstraelen, Johan Maertens, Patrick Augustijns, Katrien Lagrou, Henriette de Loor, Raf Mols, Pieter Annaert, Anne Malfroot, Isabel Spriet

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Article in Clinical pharmacokinetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 36% 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

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

  1. Pooled it
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  4. Invasive Aspergillosis after Renal Transplantation.Journal of fungi (Basel, Switzerland) · 2023
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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 at 2 institutions in 1 country.

Kim VanstraelenClinical Pharmacology and Pharmacotherapy, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, Herestraat 49, 3000, Leuven, Belgium. kim_vanstraelen@hotmail.com.
Johan MaertensAcute Leukaemia and Stem Cell Transplantation Unit, Clinical Department of Haematology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium.
Patrick AugustijnsDrug Delivery and Disposition, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, Herestraat 49, 3000, Leuven, Belgium.
Katrien LagrouClinical Department of Laboratory Medicine, Department of Microbiology and Immunology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium.
Henriette de LoorLaboratory of Nephrology and Renal Transplantation, KU Leuven Department of Microbiology and Immunology, Herestraat 49, 3000, Leuven, Belgium.
Raf MolsDrug Delivery and Disposition, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, Herestraat 49, 3000, Leuven, Belgium.
Pieter AnnaertDrug Delivery and Disposition, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, Herestraat 49, 3000, Leuven, Belgium.
Anne MalfrootCystic Fibrosis Clinic, Research Group GRON, Universitair Ziekenhuis Brussel (UZ Brussel); Vrije Universiteit Brussel (VUB), Laarbeeklaan 101, 1090, Brussels, Belgium.
Isabel SprietClinical Pharmacology and Pharmacotherapy, KU Leuven Department of Pharmaceutical and Pharmacological Sciences, Herestraat 49, 3000, Leuven, Belgium.
KU Leuven · BEUniversitair Ziekenhuis Brussel · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesTherapeutic drug monitoring (TDM) of voriconazole is increasingly being implemented in clinical practice. However, as blood sampling can be difficult in paediatric and ambulatory patients, a non-invasive technique for TDM is desirable. The aim of this study was to compare the pharmacokinetics of voriconazole in saliva with the pharmacokinetics of unbound and total voriconazole in plasma in order to clinically validate saliva as an alternative to plasma in voriconazole TDM.

methodsIn this pharmacokinetic study, paired plasma and saliva samples were taken at steady state in adult haematology and pneumology patients treated with voriconazole. Unbound and bound plasma voriconazole concentrations were separated using high-throughput equilibrium dialysis. Voriconazole concentrations were determined with liquid chromatography-tandem mass spectrometry. Pharmacokinetic parameters were calculated using log-linear regression.

resultsSixty-three paired samples were obtained from ten patients (seven haematology and three pneumology patients). Pearson's correlation coefficients (R values) for saliva versus unbound and total plasma voriconazole concentrations showed a very strong correlation, with values of 0.970 (p < 0.001) and 0.891 (p < 0.001), respectively. Linear mixed modelling revealed strong agreement between voriconazole concentrations in saliva and unbound plasma voriconazole concentrations, with a mean bias of -0.03 (95 % confidence interval -0.14 to 0.09; p = 0.60). For total concentrations below 10 mg/L, the mean ratio of saliva to total plasma voriconazole concentrations was 0.51 ± 0.08 (n = 63), which did not differ significantly (p = 0.76) from the unbound fraction of voriconazole in plasma of 0.49 ± 0.03 (n = 36).

conclusionsSaliva can serve as a reliable alternative to plasma in voriconazole TDM, and it can easily be implemented in clinical practice.

Indexed as

Administration, IntravenousAdultAgedAntifungal AgentsAspergillosisDrug MonitoringFemaleHumansMaleMiddle AgedSalivaVoriconazoleAntifungal AgentsVoriconazole

Identifiers

PMID25910879
OpenAlexW2170024224

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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.