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Castro-Balado A, Varela-Rey I, Mejuto B, Mondelo-García C, Zarra-Ferro I, Rodríguez-Jato T, Fernández-Ferreiro A. Updated antimicrobial dosing recommendations for obese patients. Antimicrob Agents Chemother 2024; 68:e0171923. [PMID: 38526051 PMCID: PMC11064535 DOI: 10.1128/aac.01719-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024] Open
Abstract
The prevalence of obesity has increased considerably in the last few decades. Pathophysiological changes in obese patients lead to pharmacokinetic (PK) and pharmacodynamic (PD) alterations that can condition the correct exposure to antimicrobials if standard dosages are used. Inadequate dosing in obese patients can lead to toxicity or therapeutic failure. In recent years, additional antimicrobial PK/PD data, extended infusion strategies, and studies in critically ill patients have made it possible to obtain data to provide a better dosage in obese patients. Despite this, it is usually difficult to find information on drug dosing in this population, which is sometimes contradictory. This is a comprehensive review of the dosing of different types of antimicrobials (antibiotics, antifungals, antivirals, and antituberculosis drugs) in obese patients, where the literature on PK and possible dosing strategies in obese adults was critically assessed.
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Affiliation(s)
- Ana Castro-Balado
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Iria Varela-Rey
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Beatriz Mejuto
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
| | - Cristina Mondelo-García
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Irene Zarra-Ferro
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Teresa Rodríguez-Jato
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Anxo Fernández-Ferreiro
- Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), Santiago de Compostela, Spain
- Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
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2
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Kane N, Rikard R, McCrory K, Marx A. Crushed Posaconazole Delayed-Release Tablets Via Enteral Feeding Tubes: A Cautionary Tale. Ann Pharmacother 2024:10600280241249705. [PMID: 38686669 DOI: 10.1177/10600280241249705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
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Selby PR, Heffernan AJ, Yeung D, Warner MS, Peake SL, Hahn U, Westley I, Shakib S, Roberts JA. Population pharmacokinetics of posaconazole in allogeneic haematopoietic stem cell transplant patients. J Antimicrob Chemother 2024; 79:567-577. [PMID: 38217845 DOI: 10.1093/jac/dkae006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024] Open
Abstract
BACKGROUND Invasive fungal disease (IFD) in the early post-allogeneic HSCT (alloHCT) period is associated with increased likelihood of catastrophic outcomes. The utility of oral modified release (MR) posaconazole tablets is limited by reduced drug absorption from gastrointestinal toxicity induced by cytotoxic chemotherapy, necessitating a switch to the IV posaconazole formulation. OBJECTIVES To describe the population pharmacokinetics of posaconazole for oral MR and IV formulations in alloHCT patients and determine dosing regimens likely to achieve therapeutic exposures. METHODS We performed a prospective observational pharmacokinetic study in adult patients in the early post-alloHCT period requiring a change in posaconazole formulation (oral to IV). Samples were analysed using a validated LC-MS/MS method. Population pharmacokinetic analysis and Monte Carlo simulations (n = 1000) were performed using Pmetrics for R. RESULTS Twenty patients aged between 21 and 70 years were included in the study. A two-compartment model, incorporating mucositis/diarrhoea to modify the bioavailability for oral administration best described the data. To achieve ≥90% PTA, simulations showed that higher than currently recommended doses of oral MR posaconazole were required for prophylaxis Cmin targets (≥0.5 and ≥0.7 mg/L), while increased doses of both formulations were required for IFD treatment PK/PD targets, with patients experiencing oral mucositis/diarrhoea unlikely to achieve these. CONCLUSIONS Increased doses of posaconazole should be considered for both prophylaxis and treatment of IFD to increase the proportion of alloHCT patients achieving therapeutic exposures, particularly the oral formulation in patients with mucositis and/or diarrhoea. Posaconazole therapeutic drug monitoring should be considered for all formulations in this setting.
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Affiliation(s)
- Philip R Selby
- School of Medicine, Discipline of Pharmacology, University of Adelaide, Adelaide, Australia
- Pharmacy Department, Royal Adelaide Hospital, Port Road, Adelaide, Australia
| | - Aaron J Heffernan
- School of Medicine and Dentistry, Griffith University, Gold Coast, Australia
- University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - David Yeung
- School of Medicine, Discipline of Pharmacology, University of Adelaide, Adelaide, Australia
- SA Pathology, Adelaide, Australia
- Haematology Unit, Royal Adelaide Hospital, Adelaide, Australia
- Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Morgyn S Warner
- School of Medicine, Discipline of Pharmacology, University of Adelaide, Adelaide, Australia
- SA Pathology, Adelaide, Australia
- Infectious Diseases Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - Sandra L Peake
- School of Medicine, Discipline of Pharmacology, University of Adelaide, Adelaide, Australia
- Department of Intensive Care Medicine, The Queen Elizabeth Hospital, Adelaide, Australia
| | - Uwe Hahn
- School of Medicine, Discipline of Pharmacology, University of Adelaide, Adelaide, Australia
- SA Pathology, Adelaide, Australia
- Haematology Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - Ian Westley
- SA Pathology, Adelaide, Australia
- School of Pharmacy and Biomedical Sciences, University of South Australia, Adelaide, Australia
| | - Sepehr Shakib
- School of Medicine, Discipline of Pharmacology, University of Adelaide, Adelaide, Australia
- Department of Clinical Pharmacology, Royal Adelaide Hospital, Adelaide, Australia
| | - Jason A Roberts
- University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
- Herston Infectious Diseases Institute (HeIDI), Metro North Health, Brisbane, Australia
- Departments of Pharmacy and Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
- Division of Anaesthesiology Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, Nîmes, France
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4
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König C, Göpfert M, Kluge S, Wichmann D. Posaconazole exposure in critically ill ICU patients: a need for action. Infection 2023; 51:1767-1772. [PMID: 37498488 PMCID: PMC10665255 DOI: 10.1007/s15010-023-02078-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 07/16/2023] [Indexed: 07/28/2023]
Abstract
PURPOSE Posaconazole is an antifungal drug currently being used for prophylaxis and treatment of invasive fungal infections such as aspergillosis. To date, therapeutic drug monitoring (TDM) of posaconazole is recommended with the use of oral suspension, but the potential need of TDM with the use of IV formulations is rising. Therefore, we aimed to investigate the pharmacokinetics of IV posaconazole in critically ill patients. METHODS In a prospective study, we analysed 168 consecutivelly collected posaconazole levels from 10 critically ill patients drawn during a 7 day curse. Posaconazole concentrations were measured using a chromatographic method. Demographic and laboratory data were collected, and the data was analysed using descriptive statistics. RESULTS We included 168 posaconazole levels, resulting in a median trough of 0.62 [0.29-1.05] mg/L with 58% not reaching the suggested target of 0.5 mg/L for fungal prophylaxis. Moreover, 74% of the trough levels were under the target of 1 mg/L which is proposed for the treatment of aspergillosis. CONCLUSION Posaconazole exposure is highly variable in critically ill patients resulting in potentially insufficient drug concentrations in many cases. TDM is highly recommended to identify and avoid underexposure. TRIAL REGISTRATION NUMBER NCT05275179, March 11, 2022.
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Affiliation(s)
- Christina König
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 42, 20251, Hamburg, Germany
| | - Melanie Göpfert
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 42, 20251, Hamburg, Germany
| | - Stefan Kluge
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 42, 20251, Hamburg, Germany
| | - Dominic Wichmann
- Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 42, 20251, Hamburg, Germany.
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5
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Ding Q, Huang S, Sun Z, Chen K, Li X, Pei Q. A Review of Population Pharmacokinetic Models of Posaconazole. Drug Des Devel Ther 2022; 16:3691-3709. [PMID: 36277600 PMCID: PMC9584355 DOI: 10.2147/dddt.s384637] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/22/2022] [Indexed: 11/05/2022] Open
Abstract
Posaconazole is often used for the prophylaxis and treatment of invasive fungal infections (IFI). However, intra- and inter-individual differences and drug interactions affect the efficacy and safety of posaconazole. Precision dosing of posaconazole based on the population pharmacokinetic (PopPK) model may assist in making significant clinical decisions. This review aimed to comprehensively summarize the published PopPK models of posaconazole and analyze covariates that significantly influence posaconazole exposure. Articles published until May 2022 for PopPK analysis of posaconazole were searched in PubMed and EMBASE databases. Demographic characteristics, model characteristics, and results of PopPK analysis were extracted from the selected articles. In addition, the steady-state pharmacokinetic profiles of posaconazole were simulated at different covariate levels and dosing regimens. Out of the 13 studies included in our review, nine studies included adults, three included children, and one included both adults and children. All oral administration models were one-compartment models, and all intravenous administration models were two-compartment models. Body weight, proton pump inhibitors, and incidence of diarrhea were found to be important covariates. Clinically, the potential impact of factors such as patient physiopathologic characteristics and comorbid medications on posaconazole pharmacokinetics should be considered. Dose adjustment in combination with TDM or replacement with a tablet or intravenous formulation with higher exposure may be an effective way to ensure drug efficacy as well as to reduce fungal resistance. Meanwhile, published models require further external evaluation to examine extrapolation.
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Affiliation(s)
- Qin Ding
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Shuqi Huang
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Zexu Sun
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, People’s Republic of China
| | - Kaifeng Chen
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Xin Li
- Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China,Xin Li, Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, 410013, People’s Republic of China, Email
| | - Qi Pei
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China,Correspondence: Qi Pei, Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, People’s Republic of China, Tel +86 1 317 041 9804, Email
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Van Daele R, Wauters J, Dreesen E, Boelens J, Nulens E, Lormans P, Vanderbeke L, Jacobs C, Rijnders B, Verweij PE, Brüggemann RJ, Spriet I. Exposure to intravenous posaconazole in critically ill patients with influenza: a pharmacokinetic analysis of the POSA-FLU study. Mycoses 2022; 65:656-660. [PMID: 35437848 DOI: 10.1111/myc.13446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/29/2022] [Accepted: 04/12/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Data on posaconazole in the critically ill are scarce. In the POSA-FLU study we examined the prevention of influenza-associated pulmonary aspergillosis with posaconazole in this population. METHODS In this observational sub-study, we performed a pharmacokinetic analysis, including protein binding and target attainment (TA). Blood samples were collected over a 24h-dosing interval on both an early (day 2 or 3) and a later (≥ day 4) treatment day. RESULTS TA was shown for AUC0-24 and Cmin prophylaxis but not for Cmin treatment. Moreover, a saturable protein binding with a significant, positive relationship between albumin concentrations and the maximum binding capacity was observed. CONCLUSIONS Our analysis indicates that posaconazole may be a suitable drug to further investigate for prophylaxis, as TA for prophylaxis was reached. Exposure targets for treatment were insufficiently attained in this population.
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Affiliation(s)
- Ruth Van Daele
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
| | - Joost Wauters
- Medical Intensive Care Unit, University Hospitals Leuven, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Erwin Dreesen
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Jerina Boelens
- Department of Medical Microbiology, Ghent University Hospital, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Eric Nulens
- Laboratory Medicine, Medical Microbiology, Algemeen Ziekenhuis Sint-Jan, Brugge-Oostende, Brugge, Belgium
| | - Piet Lormans
- Department of Anesthesiology and Intensive Care Medicine, Algemeen Ziekenhuis Delta, Roeselare, Belgium
| | - Lore Vanderbeke
- Medical Intensive Care Unit, University Hospitals Leuven, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Cato Jacobs
- Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Bart Rijnders
- Department of Internal Medicine, Section of Infectious Diseases and Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Paul E Verweij
- Radboud University Medical Center, Nijmegen, the Netherlands
| | - Roger J Brüggemann
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen and Center of Expertise in Mycology Radboudumc/CWZ, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
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7
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Teh BW, Yeoh DK, Haeusler GM, Yannakou CK, Fleming S, Lindsay J, Slavin MA. Consensus guidelines for antifungal prophylaxis in haematological malignancy and haemopoietic stem cell transplantation, 2021. Intern Med J 2021; 51 Suppl 7:67-88. [PMID: 34937140 DOI: 10.1111/imj.15588] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Antifungal prophylaxis can reduce morbidity and mortality from invasive fungal disease (IFD). However, its use needs to be optimised and appropriately targeted to patients at highest risk to derive the most benefit. In addition to established risks for IFD, considerable recent progress in the treatment of malignancies has resulted in the development of new 'at-risk' groups. The changing epidemiology of IFD and emergence of drug resistance continue to impact choice of prophylaxis, highlighting the importance of active surveillance and knowledge of local epidemiology. These guidelines aim to highlight emerging risk groups and review the evidence and limitations around new formulations of established agents and new antifungal drugs. It provides recommendations around use and choice of antifungal prophylaxis, discusses the potential impact of the changing epidemiology of IFD and emergence of drug resistance, and future directions for risk stratification to assist optimal management of highly vulnerable patients.
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Affiliation(s)
- Benjamin W Teh
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Daniel K Yeoh
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Infectious Diseases, Perth Children's Hospital, Perth, Western Australia, Australia
| | - Gabrielle M Haeusler
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Infectious Diseases, Royal Children's Hospital, Melbourne, Victoria, Australia.,Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Costas K Yannakou
- Department of Molecular Oncology and Cancer Immunology, Epworth Freemasons Hospital, Epworth HealthCare, Melbourne, Victoria, Australia
| | - Shaun Fleming
- Malignant Haematology and Stem Cell Transplantation Service, Alfred Health, Melbourne, Victoria, Australia
| | - Julian Lindsay
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Haematology, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Monica A Slavin
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Immunocompromised Host Infection Service, Royal Melbourne Hospital, Melbourne, Victoria, Australia
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Coussement J, Lindsay J, Teh BW, Slavin M. Choice and duration of antifungal prophylaxis and treatment in high-risk haematology patients. Curr Opin Infect Dis 2021; 34:297-306. [PMID: 34039878 DOI: 10.1097/qco.0000000000000737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW This review aims to summarize available guidelines as well as the emerging evidence for the prevention and treatment of invasive fungal diseases in high-risk haematology patients. RECENT FINDINGS Primary mould-active prophylaxis is the strategy used in many centres to manage the risk of invasive fungal disease in high-risk haematology patients, and posaconazole remains the antifungal of choice for most of these patients. Data on the use of other antifungals for primary prophylaxis, including isavuconazole, are limited. There is considerable interest in identifying a strategy that would limit the use of mould-active agents to the patients who are the most likely to benefit from them. In this regard, a recent trial demonstrated that the preemptive strategy is noninferior to the empiric strategy. For primary treatment of invasive aspergillosis, two randomized trials found isavuconazole and posaconazole to be noninferior to voriconazole. Isavuconazole does not appear to require therapeutic drug monitoring. SUMMARY Prophylaxis and treatment of invasive fungal diseases in high-risk haematology patients is a rapidly evolving field. Critical clinical questions remain unanswered, especially regarding the management of suspected invasive fungal diseases breaking through mould-active prophylaxis, and the duration of antifungal therapy for invasive mould infections.
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Affiliation(s)
- Julien Coussement
- Department of Infectious Diseases.,National Centre for Infection in Cancer, Peter MacCallum Cancer Centre, Melbourne
| | - Julian Lindsay
- National Centre for Infection in Cancer, Peter MacCallum Cancer Centre, Melbourne.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia.,Vaccine and Infectious Disease and Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Benjamin W Teh
- Department of Infectious Diseases.,National Centre for Infection in Cancer, Peter MacCallum Cancer Centre, Melbourne.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
| | - Monica Slavin
- Department of Infectious Diseases.,National Centre for Infection in Cancer, Peter MacCallum Cancer Centre, Melbourne.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
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Van Daele R, Brüggemann RJ, Dreesen E, Depuydt P, Rijnders B, Cotton F, Fage D, Gijsen M, Van Zwam K, Debaveye Y, Wauters J, Spriet I. Pharmacokinetics and target attainment of intravenous posaconazole in critically ill patients during extracorporeal membrane oxygenation. J Antimicrob Chemother 2021; 76:1234-1241. [PMID: 33517360 DOI: 10.1093/jac/dkab012] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 01/04/2021] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Posaconazole is an antifungal drug used for prophylaxis and treatment of invasive fungal infections. Severe influenza has been identified as a risk factor for invasive pulmonary aspergillosis in critically ill patients. In this population, extracorporeal membrane oxygenation (ECMO) is used as rescue therapy, although little is known about the pharmacokinetics (PK) of posaconazole during ECMO. OBJECTIVES To determine the PK and target attainment of six patients treated with IV posaconazole under ECMO and to develop a population PK model that can be used to simulate the PTA. METHODS Critically ill patients treated with posaconazole and ECMO were included in this study. Plasma samples were collected at several timepoints within one dosing interval on two occasions: an early (Day 2-3) and a late (Day 4-7) sampling day. Daily trough concentrations were measured. RESULTS The median (IQR) AUC0-24, CL and Vd were 34.3 (28.3-37.7) mg·h/L, 8.7 (8.0-10.6) L/h and 389 (314-740) L, if calculated with non-compartmental analysis based on the observed concentrations. All measured trough concentrations were ≥0.7 mg/L and 11/16 were ≥1 mg/L, which are the haematological thresholds for prophylaxis and treatment of invasive aspergillosis, respectively. The targeted PTA (>90%) was attained for prophylaxis but not for treatment. CONCLUSIONS ECMO does not appear to influence posaconazole exposure compared with haematology patients. However, some trough levels were below the lower limit for treatment. An a priori dose adjustment does not appear to be necessary but drug monitoring is recommended.
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Affiliation(s)
- Ruth Van Daele
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven and Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
| | - Roger J Brüggemann
- Department of Pharmacy and Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen and Center of Expertise in Mycology Radboudumc/CWZ, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Erwin Dreesen
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Pieter Depuydt
- Department of Intensive Care, Ghent University Hospital, Ghent, Belgium
| | - Bart Rijnders
- Department of Infectious Diseases, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Frédéric Cotton
- Department of Clinical Chemistry, LHUB-ULB, Erasme Hospital and, Université Libre de Bruxelles, Bruxelles, Belgium
| | - David Fage
- Department of Clinical Chemistry, LHUB-ULB, Erasme Hospital and, Université Libre de Bruxelles, Bruxelles, Belgium
| | - Matthias Gijsen
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven and Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
| | - Kenny Van Zwam
- Department of Perfusion, University Hospitals Leuven, Leuven, Belgium
| | - Yves Debaveye
- Intensive Care Unit, University Hospitals Leuven and Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Joost Wauters
- Medical Intensive Care Unit, University Hospitals Leuven and Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven and Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
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Kallee S, Scharf C, Schroeder I, Paal M, Vogeser M, Irlbeck M, Zander J, Zoller M, Jung J, Kneidinger N, Schneider C, Michel S, Liebchen U. Comparing posaconazole and itraconazole for antifungal prophylaxis in critically ill lung transplant recipients: Efficacy and plasma concentrations. Transpl Infect Dis 2021; 23:e13675. [PMID: 34166573 DOI: 10.1111/tid.13675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/19/2021] [Accepted: 05/30/2021] [Indexed: 01/20/2023]
Abstract
BACKGROUND Posaconazole and itraconazole are commonly used for systemic antifungal prophylaxis after lung transplantation. The aim of this study on critically ill lung transplant recipients was to assess the rate of adequate plasma concentrations and the frequency of fungal-induced transitions from antifungal prophylaxis to therapy after the administration of either posaconazole or itraconazole for systemic prophylaxis. METHODS Critically ill lung transplant recipients with postoperative posaconazole or itraconazole prophylaxis and therapeutic drug monitoring from February 2016 to November 2019 were retrospectively included in the study. Positive fungal cultures or Aspergillus antigen tests resulting in a transition from antifungal prophylaxis to therapy were analyzed from the first day of prophylaxis until 7 days after the last sample for each patient. Adequate plasma concentrations were defined as ≥500 µg/L for itraconazole and ≥700 µg/L for posaconazole. RESULTS Two hundred seventy-five samples from 73 patients were included in the analysis. Overall, 60% of the posaconazole and 55% of the itraconazole concentrations were subtherapeutic. Administration of posaconazole suspension resulted significantly (P < .01) more often in subtherapeutic concentrations than tablets (68% vs 10%). Patients treated with posaconazole showed less positive fungal records resulting in a transition from prophylaxis to therapy than patients treated with itraconazole (10% vs 33%, P-value: .029). The detection of a fungal pathogen was not associated with the measured plasma concentrations or the achievement of the target concentrations. CONCLUSION Our findings suggest that posaconazole should be used instead of itraconazole for systemic prophylaxis in critically ill lung transplant recipients.
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Affiliation(s)
- Simon Kallee
- Department of Anesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Christina Scharf
- Department of Anesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Ines Schroeder
- Department of Anesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Michael Paal
- Institute of Laboratory Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Michael Vogeser
- Institute of Laboratory Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Michael Irlbeck
- Department of Anesthesiology, University Hospital, LMU Munich, Munich, Germany
| | | | - Michael Zoller
- Department of Anesthesiology, University Hospital, LMU Munich, Munich, Germany
| | - Jette Jung
- Max-von-Pettenkofer-Institute Munich, Ludwig Maximilian University, Munich, Germany
| | - Nikolaus Kneidinger
- Department of Internal Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Christian Schneider
- Department of Thoracic Surgery, University Hospital, LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Sebastian Michel
- Department of Cardiac Surgery, University Hospital LMU Munich, Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Uwe Liebchen
- Department of Anesthesiology, University Hospital, LMU Munich, Munich, Germany
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Wasmann RE, Smit C, van Donselaar MH, van Dongen EPA, Wiezer RMJ, Verweij PE, Burger DM, Knibbe CAJ, Brüggemann RJM. Implications for IV posaconazole dosing in the era of obesity. J Antimicrob Chemother 2021; 75:1006-1013. [PMID: 31971567 PMCID: PMC7069473 DOI: 10.1093/jac/dkz546] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND The prevalence of obesity has shown a dramatic increase over recent decades. Obesity is associated with underdosing of antimicrobial drugs for prophylaxis and treatment. Posaconazole is a broad-spectrum triazole antifungal drug licensed for prophylaxis and treatment of invasive fungal infections. It is unclear how posaconazole should be dosed in obese patients. METHODS We performed a prospective study investigating the pharmacokinetics of posaconazole in morbidly obese (n = 16) and normal-weight (n = 8) subjects, with a weight ranging between 61.4 and 190 kg, after a 300 or 400 mg IV dose. Population pharmacokinetic modelling was used to assess the effect of body size on posaconazole pharmacokinetics. ClinicalTrials.gov Identifier: NCT03246386. RESULTS Total body weight best predicted changes in CL and V. Model-based simulations demonstrated that, for treatment of fungal infections, a daily IV dose of 300 mg will result in a PTA of ≥90% in individuals up to 140 kg, after which both twice daily loading and the daily maintenance dose should be increased to 400 mg. For prophylaxis, a 300 mg IV dose is adequate in patients up to 190 kg. CONCLUSIONS Body size has a significant impact on posaconazole CL and V, resulting in a lower exposure in obese subjects compared with normal-weight subjects. For therapeutic use of posaconazole, a dose increase is required in patients above 140 kg. For prophylaxis, a 300 mg IV dose is adequate. For oral treatment, these recommendations can act as a starting point followed by therapeutic drug monitoring.
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Affiliation(s)
- Roeland E Wasmann
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Center of Expertise in Mycology Radboudumc/CWZ, Nijmegen, The Netherlands
- Corresponding author. E-mail:
| | - Cornelis Smit
- Department of Clinical Pharmacy, St Antonius Hospital, Nieuwegein, The Netherlands
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Marieke H van Donselaar
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Eric P A van Dongen
- Department of Anaesthesiology, Intensive Care and Pain Management, St Antonius Hospital, Nieuwegein, The Netherlands
| | - René M J Wiezer
- Department of Surgery, St Antonius Hospital, Nieuwegein, The Netherlands
| | - Paul E Verweij
- Center of Expertise in Mycology Radboudumc/CWZ, Nijmegen, The Netherlands
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - David M Burger
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Catherijne A J Knibbe
- Department of Clinical Pharmacy, St Antonius Hospital, Nieuwegein, The Netherlands
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Roger J M Brüggemann
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Center of Expertise in Mycology Radboudumc/CWZ, Nijmegen, The Netherlands
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12
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Vanderbeke L, Janssen NAF, Bergmans DCJJ, Bourgeois M, Buil JB, Debaveye Y, Depuydt P, Feys S, Hermans G, Hoiting O, van der Hoven B, Jacobs C, Lagrou K, Lemiale V, Lormans P, Maertens J, Meersseman P, Mégarbane B, Nseir S, van Oers JAH, Reynders M, Rijnders BJA, Schouten JA, Spriet I, Thevissen K, Thille AW, Van Daele R, van de Veerdonk FL, Verweij PE, Wilmer A, Brüggemann RJM, Wauters J. Posaconazole for prevention of invasive pulmonary aspergillosis in critically ill influenza patients (POSA-FLU): a randomised, open-label, proof-of-concept trial. Intensive Care Med 2021; 47:674-686. [PMID: 34050768 PMCID: PMC8164057 DOI: 10.1007/s00134-021-06431-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/05/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Influenza-associated pulmonary aspergillosis (IAPA) is a frequent complication in critically ill influenza patients, associated with significant mortality. We investigated whether antifungal prophylaxis reduces the incidence of IAPA. METHODS We compared 7 days of intravenous posaconazole (POS) prophylaxis with no prophylaxis (standard-of-care only, SOC) in a randomised, open-label, proof-of-concept trial in patients admitted to an intensive care unit (ICU) with respiratory failure due to influenza (ClinicalTrials.gov, NCT03378479). Adult patients with PCR-confirmed influenza were block randomised (1:1) within 10 days of symptoms onset and 48 h of ICU admission. The primary endpoint was the incidence of IAPA during ICU stay in patients who did not have IAPA within 48 h of ICU admission (modified intention-to-treat (MITT) population). RESULTS Eighty-eight critically ill influenza patients were randomly allocated to POS or SOC. IAPA occurred in 21 cases (24%), the majority of which (71%, 15/21) were diagnosed within 48 h of ICU admission, excluding them from the MITT population. The incidence of IAPA was not significantly reduced in the POS arm (5.4%, 2/37) compared with SOC (11.1%, 4/36; between-group difference 5.7%; 95% CI - 10.8 to 21.7; p = 0.32). ICU mortality of early IAPA was high (53%), despite rapid antifungal treatment. CONCLUSION The higher than expected incidence of early IAPA precludes any definite conclusion on POS prophylaxis. High mortality of early IAPA, despite timely antifungal therapy, indicates that alternative management strategies are required. After 48 h, still 11% of patients developed IAPA. As these could benefit from prophylaxis, differentiated strategies are likely needed to manage IAPA in the ICU.
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Affiliation(s)
- Lore Vanderbeke
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Nico A F Janssen
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Center of Expertise in Mycology Radboudumc/CWZ, Radboudumc Center for Infectious Diseases (RCI), Nijmegen, The Netherlands
| | - Dennis C J J Bergmans
- Department of Intensive Care Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Marc Bourgeois
- Department of Intensive Care, Algemeen Ziekenhuis Sint-Jan Brugge-Oostende, Brugge, Belgium
| | - Jochem B Buil
- Center of Expertise in Mycology Radboudumc/CWZ, Radboudumc Center for Infectious Diseases (RCI), Nijmegen, The Netherlands.,Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Yves Debaveye
- Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.,Department of Intensive Care Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Pieter Depuydt
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
| | - Simon Feys
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Greet Hermans
- Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Oscar Hoiting
- Department of Intensive Care Medicine, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Ben van der Hoven
- Department of Intensive Care Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Cato Jacobs
- Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Katrien Lagrou
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Department of Laboratory Medicine and National Reference Center for Mycosis, University Hospitals Leuven, Leuven, Belgium
| | - Virginie Lemiale
- Department of Intensive Care Medicine, Saint-Louis Hospital, Paris, France
| | - Piet Lormans
- Department of Anesthesiology and Intensive Care Medicine, Algemeen Ziekenhuis Delta, Roeselare, Belgium
| | - Johan Maertens
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Department of Haematology, University Hospitals Leuven, Leuven, Belgium
| | - Philippe Meersseman
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Bruno Mégarbane
- Department of Medical and Toxicological Critical Care, Lariboisière Hospital, INSERM UMRS-1144, University of Paris, Paris, France
| | - Saad Nseir
- Department of Intensive Care Medicine, Critical Care Center, University Hospital Lille, INSERM U995-E2, Lille Inflammation Research International Center, University of Lille, Lille, France
| | - Jos A H van Oers
- Department of Intensive Care Medicine, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - Marijke Reynders
- Department of Laboratory Medicine, Algemeen Ziekenhuis Sint-Jan Brugge-Oostende, Brugge, Belgium
| | - Bart J A Rijnders
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Jeroen A Schouten
- Department of Intensive Care Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.,Department of Pharmacy, University Hospitals Leuven, Leuven, Belgium
| | - Karin Thevissen
- Department of Microbial and Molecular Systems, Center of Microbial and Plant Genetics (CMPG), KU Leuven, Leuven, Belgium
| | - Arnaud W Thille
- Department of Intensive Care Medicine, University Hospital Poitiers, Poitiers, France
| | - Ruth Van Daele
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.,Department of Pharmacy, University Hospitals Leuven, Leuven, Belgium
| | - Frank L van de Veerdonk
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Center of Expertise in Mycology Radboudumc/CWZ, Radboudumc Center for Infectious Diseases (RCI), Nijmegen, The Netherlands
| | - Paul E Verweij
- Center of Expertise in Mycology Radboudumc/CWZ, Radboudumc Center for Infectious Diseases (RCI), Nijmegen, The Netherlands.,Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alexander Wilmer
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Roger J M Brüggemann
- Center of Expertise in Mycology Radboudumc/CWZ, Radboudumc Center for Infectious Diseases (RCI), Nijmegen, The Netherlands.,Department of Pharmacy, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Joost Wauters
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium. .,Medical Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium.
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13
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Abstract
Posaconazole is typically used for preventing invasive yeast and mold infections such as invasive aspergillosis in high-risk immunocompromised patients. The oral suspension was the first released formulation and many pharmacokinetic and pharmacodynamic studies of this formulation have been published. Erratic absorption profiles associated with this formulation were widely reported. Posaconazole exposure was found to be significantly influenced by food and many gastrointestinal conditions, including pH and motility. As a result, low posaconazole plasma concentrations were obtained in large groups of patients. These issues of erratic absorption urged the development of the subsequently marketed delayed-release tablet, which proved to be associated with higher and more stable exposure profiles. Shortly thereafter, an intravenous formulation was released for patients who are not able to take oral formulations. Both new formulations require a loading dose on day 1 to achieve high posaconazole concentrations more quickly, which was not possible with the oral suspension. So far, there appears to be no evidence of increased toxicity correlated to the higher posaconazole exposure achieved with the regimen for these formulations. The higher systemic availability of posaconazole for the delayed-release tablet and intravenous formulation have resulted in these two formulations being preferable for both prophylaxis and treatment of invasive fungal disease. This review aimed to integrate the current knowledge on posaconazole pharmacokinetics, pharmacodynamics, major toxicity, existing resistance, clinical experience in special populations, and new therapeutic strategies in order to get a clear understanding of the clinical use of this drug.
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14
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Van Daele R, Spriet I, Maertens J. Posaconazole in prophylaxis and treatment of invasive fungal infections: a pharmacokinetic, pharmacodynamic and clinical evaluation. Expert Opin Drug Metab Toxicol 2020; 16:539-550. [DOI: 10.1080/17425255.2020.1764939] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ruth Van Daele
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
- Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
- Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
| | - Johan Maertens
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
- Department of Hematology, University Hospitals Leuven, Leuven, Belgium
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15
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Abdul-Aziz MH, Alffenaar JWC, Bassetti M, Bracht H, Dimopoulos G, Marriott D, Neely MN, Paiva JA, Pea F, Sjovall F, Timsit JF, Udy AA, Wicha SG, Zeitlinger M, De Waele JJ, Roberts JA. Antimicrobial therapeutic drug monitoring in critically ill adult patients: a Position Paper .. Intensive Care Med 2020; 46:1127-1153. [PMID: 32383061 PMCID: PMC7223855 DOI: 10.1007/s00134-020-06050-1] [Citation(s) in RCA: 483] [Impact Index Per Article: 120.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/10/2020] [Indexed: 12/12/2022]
Abstract
Purpose This Position Paper aims to review and discuss the available data on therapeutic drug monitoring (TDM) of antibacterials, antifungals and antivirals in critically ill adult patients in the intensive care unit (ICU). This Position Paper also provides a practical guide on how TDM can be applied in routine clinical practice to improve therapeutic outcomes in critically ill adult patients.
Methods Literature review and analysis were performed by Panel Members nominated by the endorsing organisations, European Society of Intensive Care Medicine (ESICM), Pharmacokinetic/Pharmacodynamic and Critically Ill Patient Study Groups of European Society of Clinical Microbiology and Infectious Diseases (ESCMID), International Association for Therapeutic Drug Monitoring and Clinical Toxicology (IATDMCT) and International Society of Antimicrobial Chemotherapy (ISAC). Panel members made recommendations for whether TDM should be applied clinically for different antimicrobials/classes. Results TDM-guided dosing has been shown to be clinically beneficial for aminoglycosides, voriconazole and ribavirin. For most common antibiotics and antifungals in the ICU, a clear therapeutic range has been established, and for these agents, routine TDM in critically ill patients appears meritorious. For the antivirals, research is needed to identify therapeutic targets and determine whether antiviral TDM is indeed meritorious in this patient population. The Panel Members recommend routine TDM to be performed for aminoglycosides, beta-lactam antibiotics, linezolid, teicoplanin, vancomycin and voriconazole in critically ill patients. Conclusion Although TDM should be the standard of care for most antimicrobials in every ICU, important barriers need to be addressed before routine TDM can be widely employed worldwide. Electronic supplementary material The online version of this article (10.1007/s00134-020-06050-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mohd H Abdul-Aziz
- University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, QLD, 4029, Australia
| | - Jan-Willem C Alffenaar
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.,Westmead Hospital, Westmead, NSW, Australia.,Marie Bashir Institute of Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW, Australia
| | - Matteo Bassetti
- Infectious Diseases Clinic, Department of Health Sciences, University of Genoa, Genoa and Hospital Policlinico San Martino - IRCCS, Genoa, Italy
| | - Hendrik Bracht
- Department of Anaesthesiology, University Ulm, Ulm, Germany
| | - George Dimopoulos
- Department of Critical Care, University Hospital Attikon, National and Kapodistrian University of Athens, Athens, Greece
| | - Deborah Marriott
- Department of Microbiology and Infectious Diseases, St. Vincent's Hospital, Sydney, NSW, Australia
| | - Michael N Neely
- Department of Paediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.,Division of Infectious Diseases, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Jose-Artur Paiva
- Department of Medicine, Faculty of Medicine of Porto, Porto, Portugal.,Department of Emergency and Intensive Care Medicine, Centro Hospitalar Universitario de São João, Porto, Portugal
| | - Federico Pea
- Institute of Clinical Pharmacology, SM Misericordia University Hospital, ASUFC, Udine, Italy
| | - Fredrik Sjovall
- Department of Perioperative Medicine, Skåne University Hospital, Malmö, Sweden
| | - Jean F Timsit
- Department of Intensive Care Medicine and Infectious Diseases, Bichat-Claude Bernard University Hospital, AP-HP, Paris, France.,Infection, Antimicrobials, Modelling, Evolution (IAME), Paris Diderot University, Paris, France
| | - Andrew A Udy
- Australian and New Zealand Intensive Care Research Centre, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia.,Department of Intensive Care and Hyperbaric Medicine, The Alfred, Melbourne, VIC, Australia
| | - Sebastian G Wicha
- Department of Clinical Pharmacy, Institute of Pharmacy, University of Hamburg, Hamburg, Germany
| | - Markus Zeitlinger
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Jan J De Waele
- Department of Critical Care Medicine, Ghent University Hospital, Ghent, Belgium
| | - Jason A Roberts
- University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, QLD, 4029, Australia. .,Department of Intensive Care Medicine and Pharmacy, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia. .,Centre for Translational Anti-infective Pharmacodynamics, School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia. .,Division of Anaesthesiology Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, Nîmes, France.
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16
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Sime FB, Byrne CJ, Parker S, Stuart J, Butler J, Starr T, Pandey S, Wallis SC, Lipman J, Roberts JA. Population pharmacokinetics of total and unbound concentrations of intravenous posaconazole in adult critically ill patients. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:205. [PMID: 31171022 PMCID: PMC6554926 DOI: 10.1186/s13054-019-2483-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 05/20/2019] [Indexed: 01/05/2023]
Abstract
Background The population pharmacokinetics of total and unbound posaconazole following intravenous administration has not yet been described for the critically ill patient population. The aim of this work was, therefore, to describe the total and unbound population pharmacokinetics of intravenous posaconazole in critically ill patients and identify optimal dosing regimens. Methods This was a prospective observational population pharmacokinetic study in critically ill adult patients with presumed/confirmed invasive fungal infection. A single dose of 300 mg posaconazole was administered intravenously as an add-on to standard antifungal therapy, and serial plasma samples were collected over 48 h. Total and unbound posaconazole concentrations, measured by chromatographic method, were used to develop a population pharmacokinetic model and perform dosing simulations in R using Pmetrics. Results From eight patients, 93 pairs of total and unbound concentrations were measured. A two-compartment linear model with capacity-limited plasma protein binding best described the concentration-time data. Albumin and body mass index (BMI) were included as covariates in the final model. Mean (SD) parameter estimates for the volume of the central compartment (V) and the elimination rate constant were 72 (43) L and 42.1 (23.7) h−1, respectively. Dosing simulations showed that high BMI was associated with a reduced probability of achieving target total and unbound posaconazole concentrations. Low serum albumin concentration was associated with a reduced probability of attaining target total but not unbound posaconazole concentrations. Conclusions An important clinical message of this study is that critically ill patients with increased BMI may require larger than approved loading doses of intravenous posaconazole when considering currently recommended dosing targets. Variability in plasma albumin concentration appears unlikely to affect dosing requirements when the assessment is based on unbound concentrations. Where available, therapeutic drug monitoring of unbound concentrations may be useful.
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Affiliation(s)
- Fekade B Sime
- School of Pharmacy, Centre for Translational Anti-infective Pharmacodynamics, The University of Queensland, Brisbane, Australia
| | - Catherine J Byrne
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin, Ireland
| | - Suzanne Parker
- University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Building 71/918, Herston Rd, Herston, Queensland, 4029, Australia
| | - Janine Stuart
- Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Jenie Butler
- Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Therese Starr
- Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Saurabh Pandey
- University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Building 71/918, Herston Rd, Herston, Queensland, 4029, Australia
| | - Steven C Wallis
- University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Building 71/918, Herston Rd, Herston, Queensland, 4029, Australia
| | - Jeffrey Lipman
- University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Building 71/918, Herston Rd, Herston, Queensland, 4029, Australia.,Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Jason A Roberts
- School of Pharmacy, Centre for Translational Anti-infective Pharmacodynamics, The University of Queensland, Brisbane, Australia. .,University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Building 71/918, Herston Rd, Herston, Queensland, 4029, Australia. .,Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia. .,Pharmacy Department, Royal Brisbane and Women's Hospital, Brisbane, Australia.
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17
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Pre-Existing Liver Disease and Toxicity of Antifungals. J Fungi (Basel) 2018; 4:jof4040133. [PMID: 30544724 PMCID: PMC6309049 DOI: 10.3390/jof4040133] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 12/17/2022] Open
Abstract
Pre-existing liver disease in patients with invasive fungal infections further complicates their management. Altered pharmacokinetics and tolerance issues of antifungal drugs are important concerns. Adjustment of the dosage of antifungal agents in these cases can be challenging given that current evidence to guide decision-making is limited. This comprehensive review aims to evaluate the existing evidence related to antifungal treatment in individuals with liver dysfunction. This article also provides suggestions for dosage adjustment of antifungal drugs in patients with varying degrees of hepatic impairment, after accounting for established or emerging pharmacokinetic–pharmacodynamic relationships with regard to antifungal drug efficacy in vivo.
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