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Xie M, Jiang M, Xu J, Zhu Y, Kong L. Development and validation of a clinical risk score nomogram for predicting voriconazole trough concentration above 5 mg/L: a retrospective cohort study. J Chemother 2024:1-9. [PMID: 38978301 DOI: 10.1080/1120009x.2024.2376453] [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: 03/29/2024] [Accepted: 06/24/2024] [Indexed: 07/10/2024]
Abstract
The therapeutic range of voriconazole (VRC) is narrow, this study aimed to explore factors influencing VRC plasma concentrations > 5 mg/L and to construct a clinical risk score nomogram prediction model. Clinical data from 221 patients with VRC prophylaxis and treatment were retrospectively analyzed. The patients were randomly divided into a training cohort and a validation cohort at a 7:3 ratio. Univariate and binary logistic regression analysis was used to select independent risk factors for VRC plasma concentration above the high limit (5 mg/L). Four indicators including age, weight, CYP2C19 genotype, and albumin were selected to construct the nomogram prediction model. The area under the curve values of the training cohort and the validation cohort were 0.841 and 0.802, respectively. The decision curve analysis suggests that the nomogram model had good clinical applicability. In conclusion, the nomogram provides a reference for early screening and intervention in a high-risk population.
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Affiliation(s)
- Mengyuan Xie
- Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
- School of Pharmacy, Bengbu Medical University, Bengbu, China
| | - Manxue Jiang
- Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
- School of Pharmacy, Bengbu Medical University, Bengbu, China
| | - Jian Xu
- Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
- School of Pharmacy, Bengbu Medical University, Bengbu, China
| | - Yulin Zhu
- Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
- School of Pharmacy, Bengbu Medical University, Bengbu, China
| | - Lingti Kong
- Department of Pharmacy, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
- School of Pharmacy, Bengbu Medical University, Bengbu, China
- Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
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Stanković M, Skaro Bogojevic S, Kljun J, Milanović Ž, Stevanović NL, Lazic J, Vojnovic S, Turel I, Djuran MI, Glišić BĐ. Silver(I) complexes with voriconazole as promising anti-Candida agents. J Inorg Biochem 2024; 256:112572. [PMID: 38691971 DOI: 10.1016/j.jinorgbio.2024.112572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 05/03/2024]
Abstract
Recognizing that metal ions play an important role in modifying the pharmacological properties of known organic-based drugs, the present manuscript addresses the complexation of the antifungal agent voriconazole (vcz) with the biologically relevant silver(I) ion as a strategy for the development of new antimycotics. The synthesized silver(I) complexes with vcz were characterized by mass spectrometry, IR, UV-Vis and NMR spectroscopy and single-crystal X-ray diffraction analysis. The crystallographic results showed that complexes {[Ag(vcz)(H2O)]CH3SO3}n (1), {[Ag(vcz)2]BF4}n (2) and {[Ag(vcz)2]PF6}n (3) have polymeric structures in the solid state, in which silver(I) ions have a distorted tetrahedral geometry. On the other hand, DFT calculations revealed that the investigated silver(I) complexes 1-3 in DMSO exist as linear [Ag(vcz-N2)(vcz-N19)]+ (1a), [Ag(vcz-N2)(vcz-N4)]+ (2a) and [Ag(vcz-N4)2]+ (3a) species, respectively. The evaluated complexes showed an enhanced anti-Candida activity compared to the parent drug with minimal inhibitory concentration (MIC) values in the range of 0.02-1.05 μM. In comparison with vcz, the corresponding silver(I) complexes showed better activity in prevention hyphae and biofilm formation of C. albicans, indicating that they could be considered as promising agents against Candida that significantly inhibit its virulence. Also, these complexes are much better inhibitors of ergosterol synthesis in the cell membrane of C. albicans at the concentration of 0.5 × MIC. This is also confirmed by a molecular docking, which revealed that complexes 1a - 3a showed better inhibitory activity than vcz against the sterol 14α-demethylase enzyme cytochrome P450 (CYP51B), which plays a crucial role in the formation of ergosterol.
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Affiliation(s)
- Mia Stanković
- University of Kragujevac, Faculty of Science, Department of Chemistry, R. Domanovića 12, 34000 Kragujevac, Serbia
| | - Sanja Skaro Bogojevic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Vojvode Stepe 444a, 11042 Belgrade, Serbia
| | - Jakob Kljun
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, SI-1000, Ljubljana, Slovenia
| | - Žiko Milanović
- University of Kragujevac, Institute for Information Technologies Kragujevac, Department of Science, Jovana Cvijića bb, 34000 Kragujevac, Serbia
| | - Nevena Lj Stevanović
- University of Kragujevac, Faculty of Science, Department of Chemistry, R. Domanovića 12, 34000 Kragujevac, Serbia
| | - Jelena Lazic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Vojvode Stepe 444a, 11042 Belgrade, Serbia
| | - Sandra Vojnovic
- University of Belgrade, Institute of Molecular Genetics and Genetic Engineering, Vojvode Stepe 444a, 11042 Belgrade, Serbia
| | - Iztok Turel
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, SI-1000, Ljubljana, Slovenia.
| | - Miloš I Djuran
- Serbian Academy of Sciences and Arts, Knez Mihailova 35, 11000 Belgrade, Serbia.
| | - Biljana Đ Glišić
- University of Kragujevac, Faculty of Science, Department of Chemistry, R. Domanovića 12, 34000 Kragujevac, Serbia.
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Hinze CA, Fuge J, Grote-Koska D, Brand K, Slevogt H, Cornberg M, Simon S, Joean O, Welte T, Rademacher J. Factors influencing voriconazole plasma level in intensive care patients. JAC Antimicrob Resist 2024; 6:dlae045. [PMID: 38500519 PMCID: PMC10946233 DOI: 10.1093/jacamr/dlae045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/22/2024] [Indexed: 03/20/2024] Open
Abstract
Background In clinical routine, voriconazole plasma trough levels (Cmin) out of target range are often observed with little knowledge about predisposing influences. Objectives To determine the distribution and influencing factors on voriconazole blood levels of patients treated on intensive- or intermediate care units (ICU/IMC). Patients and methods Data were collected retrospectively from patients with at least one voriconazole trough plasma level on ICU/IMC (n = 153) to determine the proportion of sub-, supra- or therapeutic plasma levels. Ordinal logistic regression analysis was used to assess factors hindering patients to reach voriconazole target range. Results Of 153 patients, only 71 (46%) reached the target range at the first therapeutic drug monitoring, whereas 66 (43%) patients experienced too-low and 16 (10%) too-high plasma levels. Ordinal logistic regression analysis identified the use of extra corporeal membrane oxygenation (ECMO), low international normalized ratio (INR) and aspartate-aminotransferase (AST) serum levels as predictors for too-low plasma levels. Conclusion Our data highlight an association of ECMO, INR and AST levels with voriconazole plasma levels, which should be considered in the care of critically ill patients to optimize antifungal therapy with voriconazole.
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Affiliation(s)
| | - Jan Fuge
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), Hannover, Germany
| | - Denis Grote-Koska
- Institute of Clinical Chemistry, Hannover Medical School, Hannover, Germany
| | - Korbinian Brand
- Institute of Clinical Chemistry, Hannover Medical School, Hannover, Germany
| | - Hortense Slevogt
- Department of Respiratory Medicine and Infectious Disease, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), Hannover, Germany
- Respiratory Infection Dynamics Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Markus Cornberg
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Centre for Individualized Infection Medicine, Hannover, Germany
- German Center for Infection Research (DZIF), partner-site Hannover-Braunschweig, Hannover, Germany
| | - Susanne Simon
- Department of Respiratory Medicine and Infectious Disease, Hannover Medical School, Hannover, Germany
| | - Oana Joean
- Department of Respiratory Medicine and Infectious Disease, Hannover Medical School, Hannover, Germany
| | - Tobias Welte
- Department of Respiratory Medicine and Infectious Disease, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), Hannover, Germany
| | - Jessica Rademacher
- Department of Respiratory Medicine and Infectious Disease, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), Hannover, Germany
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Bandín-Vilar E, Toja-Camba FJ, Vidal-Millares M, Durán-Maseda MJ, Pou-Álvarez M, Castro-Balado A, Maroñas O, Gil-Rodríguez A, Carracedo Á, Zarra-Ferro I, Soy D, Fernández-Ferreiro A, Mangas-Sanjuan V, Mondelo-García C. Towards precision medicine of long-acting aripiprazole through population pharmacokinetic modelling. Psychiatry Res 2024; 333:115721. [PMID: 38245977 DOI: 10.1016/j.psychres.2024.115721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/02/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024]
Abstract
Population pharmacokinetic (popPK) models constitute a valuable tool for characterizing the pharmacokinetic properties of once-monthly long-acting injectable aripiprazole (LAI aripiprazole) and quantifying the sources of variability in drug exposure. Our aim is to develop a popPK model of both aripiprazole and its metabolite dehydro-aripiprazole in patients treated with LAI aripiprazole, and to personalize the dosing regimen of aripiprazole across different sub-groups of patients. This is a prospective study investigating the pharmacokinetics of LAI aripiprazole. A total of 93 patients were included, 21 for model development and 71 for external model evaluation. A one-compartment model with linear absorption and elimination adequately described both aripiprazole and dehydro-aripiprazole concentrations. The weight of the patients has been shown to be the factor that most influences the absorption. However, the metabolizing phenotype for CYP2D6 and the concomitant treatment with strong inhibitors of this cytochrome have been shown to be the covariates that most influence total drug exposure. This is the first popPK model developed for LAI aripiprazole that includes aripiprazole and its main active metabolite, dehydroaripiprazole. It provides a personalized dosage recommendation that maximizes the probability of achieving optimal therapeutic concentrations and minimizes the difficulties associated with trial-and-error therapeutic strategies carried out in clinical practice.
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Affiliation(s)
- Enrique Bandín-Vilar
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (CHUS), Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Spain; Pharmacology, Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Santiago de Compostela (USC), Spain
| | - Francisco José Toja-Camba
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (CHUS), Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Spain; Pharmacology, Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Santiago de Compostela (USC), Spain
| | - María Vidal-Millares
- Psychiatry Department, University Clinical Hospital of Santiago de Compostela, Spain
| | | | - Marta Pou-Álvarez
- Psychiatry Department, University Clinical Hospital of Santiago de Compostela, Spain
| | - Ana Castro-Balado
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (CHUS), Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Spain; Pharmacology, Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Santiago de Compostela (USC), Spain
| | - Olalla Maroñas
- Genomic Medicine Group CIMUS, University of Santiago de Compostela, Santiago de Compostela 15782, Spain; Galician Foundation of Genomic Medicine, Foundation of Health Research Institute of Santiago de Compostela (FIDIS), SERGAS, Santiago de Compostela, Spain; Centre for Biomedical Network Research on Rare Diseases (CIBERER), Carlos III Health Institute, Madrid, Spain; Pharmacogenomics and drug discovery, Health Research Institute of Santiago de Compostela (IDIS), Spain
| | - Almudena Gil-Rodríguez
- Genomic Medicine Group CIMUS, University of Santiago de Compostela, Santiago de Compostela 15782, Spain; Pharmacogenomics and drug discovery, Health Research Institute of Santiago de Compostela (IDIS), Spain
| | - Ángel Carracedo
- Galician Foundation of Genomic Medicine, Foundation of Health Research Institute of Santiago de Compostela (FIDIS), SERGAS, Santiago de Compostela, Spain; Centre for Biomedical Network Research on Rare Diseases (CIBERER), Carlos III Health Institute, Madrid, Spain; Pharmacogenomics and drug discovery, Health Research Institute of Santiago de Compostela (IDIS), Spain; Genetics group, Health Research Institute of Santiago de Compostela (IDIS), Spain
| | - Irene Zarra-Ferro
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (CHUS), Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Spain
| | - Dolors Soy
- Pharmacy Department Division of Medicines, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain; Department of Pharmacology, Toxicology and Chemical Therapeutics, School of Pharmacy, University of Barcelona, Barcelona, Spain
| | - Anxo Fernández-Ferreiro
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (CHUS), Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Spain.
| | - Víctor Mangas-Sanjuan
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Valencia, Spain; Interuniversity Research Institute for Molecular Recognition and Technological Development, Polytechnic University of Valencia - University of Valencia, Valencia, Spain.
| | - Cristina Mondelo-García
- Pharmacy Department, University Clinical Hospital Santiago de Compostela (CHUS), Spain; Clinical Pharmacology Group, Health Research Institute of Santiago de Compostela (IDIS), Spain.
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Taher KW, Almofada R, Alomair S, Albassam AA, Alsultan A. Therapeutic Drug Monitoring of Voriconazole in Critically Ill Pediatric Patients: A Single-Center Retrospective Study. Paediatr Drugs 2024; 26:197-203. [PMID: 38228969 DOI: 10.1007/s40272-023-00616-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/20/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND AND OBJECTIVE Voriconazole pharmacokinetics are highly variable in pediatric patients, and the optimal dosage has yet to be determined. The purpose of this study was to describe voriconazole pharmacokinetic and pharmacodynamic targets achieved and evaluate the efficacy and safety of voriconazole for critically ill pediatrics. METHODS This is a single-center retrospective study conducted at a pediatric intensive care unit at a tertiary/quaternary hospital. Pediatrics admitted to the pediatric intensive care unit and who received voriconazole for a proven or suspected fungal infection with at least one measured trough concentration were included. The primary outcomes included the percentage of pediatric patients who achieved the pharmacokinetic and pharmacodynamic targets. Secondary outcomes included assessing the correlation between voriconazole trough concentrations and clinical/microbiological outcomes. All statistical analyses were performed using the R statistical software and Microsoft Excel. Multiple logistic regression was used to assess the predictors of both clinical and microbiologic cures. Multiple linear regression was used to determine significant factors associated with trough concentrations. RESULTS A total of 129 voriconazole trough concentrations were measured from 71 participants at steady state after at least three doses of voriconazole. The mean (± standard deviation) of the first and second trough concentrations were 2.9 (4.2) and 2.3 (3.3) mg/L, respectively. Among the first trough concentrations, only 33.8% were within the therapeutic range (1-5 mg/L), 46.5% were below the therapeutic range, and 19.7% were above the therapeutic range. A clinical cure occurred in 78% of patients, while a microbiologic cure occurred in 80% of patients. CONCLUSIONS Voriconazole trough concentrations vary widely in critically ill pediatric patients and only a third of the patients achieved therapeutic concentrations with initial doses.
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Affiliation(s)
- Khalid W Taher
- Pharmaceutical Care Division, King Faisal Specialist Hospital and Research Centre, MBC 11, P.O. Box 3354, 11211, Riyadh, Saudi Arabia.
| | - Razan Almofada
- Pharmaceutical Care Division, King Faisal Specialist Hospital and Research Centre, MBC 11, P.O. Box 3354, 11211, Riyadh, Saudi Arabia
| | - Sufyan Alomair
- Pharmaceutical Care Division, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
- Department of Pharmacy Practice, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Ahmed A Albassam
- Department of Clinical Pharmacy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Abdullah Alsultan
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Wang J, Shen Y, Wu Z, Ge W. Population Pharmacokinetics of Voriconazole and Dose Optimization in Elderly Chinese Patients. J Clin Pharmacol 2024; 64:253-263. [PMID: 37766506 DOI: 10.1002/jcph.2357] [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: 05/21/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023]
Abstract
Voriconazole is commonly recommended as a first-line therapy for invasive aspergillosis infections. Elderly patients are susceptible to infectious diseases owing to their decreased physical function and immune system. Our study aims to establish a population pharmacokinetics model for elderly patients receiving intravenous voriconazole, and to optimize dosing protocols through a simulated approach. An accurate fit to the concentration-time profile of voriconazole was achieved by employing a 1-compartment model featuring first-order elimination. The typical clearance rate of voriconazole was found to be 3.22 L/h, with a typical volume of distribution of 194 L. The covariate analysis revealed that albumin (ALB), gamma-glutamyl transpeptidase, and direct bilirubin had significant impacts on voriconazole clearance. Additionally, body weight was found to be associated with the volume of distribution. Individualized dosing regimens were recommended for different ALB levels based on population pharmacokinetics model prediction. The proposed dosing regimens could provide a rationale for dosage individualization, improve the clinical outcomes, and minimize drug-related toxicities.
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Affiliation(s)
- Jing Wang
- Department of Pharmacy, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Nanjing Medical Center for Clinical Pharmacy, Nanjing, Jiangsu, China
| | - Yue Shen
- Department of Pharmacy,China Pharmaceutical University, Nanjing Drum Tower Hospital, Nanjing, Jiangsu, China
| | - Zejun Wu
- Department of Pharmacy, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Weihong Ge
- Department of Pharmacy, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Nanjing Medical Center for Clinical Pharmacy, Nanjing, Jiangsu, China
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Dvorackova E, Sima M, Vyskocilova K, Kotowski T, Dunovská K, Klapkova E, Havlin J, Lischke R, Slanar O. Population pharmacokinetics and covariate-based dosing individualization of voriconazole in lung transplant recipients. J Chemother 2024; 36:35-44. [PMID: 37272077 DOI: 10.1080/1120009x.2023.2219590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/23/2023] [Indexed: 06/06/2023]
Abstract
This study aimed to explore pharmacokinetics of voriconazole and its covariates in lung transplant recipients using population approach in order to propose dosing individualization. Data from routine therapeutic drug monitoring in adult lung transplant recipients treated with oral voriconazole were analysed with a three-stage population pharmacokinetic model using nonlinear mixed-effects modelling. Monte Carlo simulations based on final voriconazole pharmacokinetic model were used to generate the theoretical distribution of pharmacokinetic profiles at various dosing regimens. A total of 78 voriconazole serum concentrations collected from 40 patients were included in pharmacokinetic analysis. The only significant covariate was age for voriconazole clearance. Population voriconazole apparent clearance started at 32.26 L/h and decreased by 0.021 L/h with each year of patient's age, while population apparent volume of distribution was 964.46 L. Based on this model, we have proposed an easy-to-use dosing regimen consisting of a loading dose of 400 mg every 12 h for the first 48 h of treatment followed by maintenance dose of 300 mg every 12 h in patients aged up to 59 years, or by maintenance dose of 200 mg every 12 h in patients aged above 59 years.
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Affiliation(s)
- Eliska Dvorackova
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Martin Sima
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Kristyna Vyskocilova
- Prague Lung Transplant Program, Department of Pneumology, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Tereza Kotowski
- Prague Lung Transplant Program, Department of Pneumology, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Kateřina Dunovská
- Department of Medical Chemistry and Clinical Biochemistry, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Eva Klapkova
- Department of Medical Chemistry and Clinical Biochemistry, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Jan Havlin
- Prague Lung Transplant Program, 3rd Department of Surgery, First Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Robert Lischke
- Prague Lung Transplant Program, 3rd Department of Surgery, First Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Ondrej Slanar
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
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Yang H, Du R, Xing X, Li Y, Qiu B. Efficacy and influencing factor analysis of Voriconazole in the treatment of invasive fungal infections. Diagn Microbiol Infect Dis 2023; 107:116047. [PMID: 37688949 DOI: 10.1016/j.diagmicrobio.2023.116047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 07/06/2023] [Accepted: 07/28/2023] [Indexed: 09/11/2023]
Abstract
Current study aims to explore the correlation between the administered dose and efficacy of voriconazole in the treatment of invasive fungal infection (IFI). The correlation between different doses of Voriconazole and plasma concentrations as well as clinical efficacy was counted. Consequently, 40 strains of pathogenic micro-organisms were isoninelated and cultured from etiological samples. A total of 66 patients with steady-state trough serum concentrations ranging from 1.0 to 5.5 μg/mL were measured, with a compliance rate of 79.5%. Chi-square test showed that there was a significant correlation between Voriconazole steady-state serum trough concentration and treatment efficacy. In addition, the result of Pearson test showed that steady-state trough serum concentration of Voriconazole was significantly positively correlated with the administered dose (γ = 0.866, P < 0.001). On conclusion, Voriconazole is effective in treatment of IFI, and there is a significant dose-plasma concentration correlation with efficacy.
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Affiliation(s)
- Haotian Yang
- Department of Pharmacy, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Runxuan Du
- Department of Reproductive Genetics, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Xiaoqing Xing
- Department of Pharmacy, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Ying Li
- Department of Pharmacy, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Bo Qiu
- Department of Pharmacy, Hebei General Hospital, Shijiazhuang, Hebei, China.
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Kluwe F, Michelet R, Huisinga W, Zeitlinger M, Mikus G, Kloft C. Towards Model-Informed Precision Dosing of Voriconazole: Challenging Published Voriconazole Nonlinear Mixed-Effects Models with Real-World Clinical Data. Clin Pharmacokinet 2023; 62:1461-1477. [PMID: 37603216 PMCID: PMC10520167 DOI: 10.1007/s40262-023-01274-y] [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] [Accepted: 05/18/2023] [Indexed: 08/22/2023]
Abstract
BACKGROUND AND OBJECTIVES Model-informed precision dosing (MIPD) frequently uses nonlinear mixed-effects (NLME) models to predict and optimize therapy outcomes based on patient characteristics and therapeutic drug monitoring data. MIPD is indicated for compounds with narrow therapeutic range and complex pharmacokinetics (PK), such as voriconazole, a broad-spectrum antifungal drug for prevention and treatment of invasive fungal infections. To provide guidance and recommendations for evidence-based application of MIPD for voriconazole, this work aimed to (i) externally evaluate and compare the predictive performance of a published so-called 'hybrid' model for MIPD (an aggregate model comprising features and prior information from six previously published NLME models) versus two 'standard' NLME models of voriconazole, and (ii) investigate strategies and illustrate the clinical impact of Bayesian forecasting for voriconazole. METHODS A workflow for external evaluation and application of MIPD for voriconazole was implemented. Published voriconazole NLME models were externally evaluated using a comprehensive in-house clinical database comprising nine voriconazole studies and prediction-/simulation-based diagnostics. The NLME models were applied using different Bayesian forecasting strategies to assess the influence of prior observations on model predictivity. RESULTS The overall best predictive performance was obtained using the aggregate model. However, all NLME models showed only modest predictive performance, suggesting that (i) important PK processes were not sufficiently implemented in the structural submodels, (ii) sources of interindividual variability were not entirely captured, and (iii) interoccasion variability was not adequately accounted for. Predictive performance substantially improved by including the most recent voriconazole observations in MIPD. CONCLUSION Our results highlight the potential clinical impact of MIPD for voriconazole and indicate the need for a comprehensive (pre-)clinical database as basis for model development and careful external model evaluation for compounds with complex PK before their successful use in MIPD.
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Affiliation(s)
- Franziska Kluwe
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin, Kelchstraße 31, 12169 Berlin, Germany
- Graduate Research Training Program PharMetrX, Berlin/Potsdam, Germany
| | - Robin Michelet
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin, Kelchstraße 31, 12169 Berlin, Germany
| | - Wilhelm Huisinga
- Institute of Mathematics, University of Potsdam, Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany
| | - Markus Zeitlinger
- Department of Clinical Pharmacology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Gerd Mikus
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin, Kelchstraße 31, 12169 Berlin, Germany
- Department of Clinical Pharmacology and Pharmacoepidemiology, University Hospital Heidelberg, Im Neuenheimer Feld 419, 69120 Heidelberg, Germany
| | - Charlotte Kloft
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin, Kelchstraße 31, 12169 Berlin, Germany
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Gomez-Lopez A, Sanchez Galiano S, Ortega Madueño S, Carballo Gonzalez C. Observed isavuconazole exposure: 5-year experience of azole TDM from a Spanish reference laboratory. Med Mycol 2023; 61:myad086. [PMID: 37580172 DOI: 10.1093/mmy/myad086] [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: 05/20/2023] [Revised: 07/28/2023] [Accepted: 08/12/2023] [Indexed: 08/16/2023] Open
Abstract
We aimed to assess patient exposure to isavuconazole (ISZ) from samples received in our laboratory for therapeutic antifungal monitoring. We used liquid chromatography coupled with ultraviolet (UV) absorbance detection adapted from a multiplex-validated method with photodiode array (PDA) detection to monitor the analytes. The latter device allows the characterization of the azoles UV spectra. The method was validated according to international guidelines for efficient ISZ monitoring. The assay exhibited linearity between 0.25 and 16 mg/l for ISZ. Accuracy and intra- and inter-day precision were within acceptable ranges, and the method was successfully applied to quantify azoles and major metabolites from clinical samples collected from treated patients. We focus on ISZ blood concentrations and compared them to those of voriconazole, posaconazole, and itraconazole for a period of 5 years (2017-2021). Median ISZ concentration was 2.92 mg/l (interquartile range 1.82-5.33 mg/l) with 89% of measurements classified as adequate exposure (> 1 mg/l). Additionally, 71% of samples reach concentration values > 2 mg/l. Different ISZ exposure between adults to children were found. In conclusion, ISZ achieves excellent blood concentrations compared to other azole drugs, they are almost identical to those previously described, they exceed the MICs of most fungi for which its use was recommended and they differ depending on the patient's age. The method we describe for antifungal monitoring is simple, robust, and efficient. It simultaneously analyzes azoles and metabolites, and can be used for tailored interventions, achieve exposures associated with therapeutic success, decrease treatment-related toxicity, and help prevent resistance emergence due to continuous azole sub-optimal concentrations.
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Affiliation(s)
- Alicia Gomez-Lopez
- Mycology Reference and Research Laboratory (National Centre for Microbiology CNM-ISCIII), Instituto de Salud Carlos III Carretera Majadahonda-Pozuelo Km 2 28220 Madrid, Spain
- Center for Biomedical Research in Network in Infectious Diseases (CIBERINFEC-CB21/13/00105), Instituto de Salud Carlos III. Carretera Majadahonda-Pozuelo Km 2 Madrid, Spain
| | - Susana Sanchez Galiano
- Mycology Reference and Research Laboratory (National Centre for Microbiology CNM-ISCIII), Instituto de Salud Carlos III Carretera Majadahonda-Pozuelo Km 2 28220 Madrid, Spain
| | - Sheila Ortega Madueño
- Mycology Reference and Research Laboratory (National Centre for Microbiology CNM-ISCIII), Instituto de Salud Carlos III Carretera Majadahonda-Pozuelo Km 2 28220 Madrid, Spain
| | - Cristina Carballo Gonzalez
- Mycology Reference and Research Laboratory (National Centre for Microbiology CNM-ISCIII), Instituto de Salud Carlos III Carretera Majadahonda-Pozuelo Km 2 28220 Madrid, Spain
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de Jong LM, Boussallami S, Sánchez-López E, Giera M, Tushuizen ME, Hoekstra M, Hawinkels LJAC, Rissmann R, Swen JJ, Manson ML. The impact of CYP2C19 genotype on phenoconversion by concomitant medication. Front Pharmacol 2023; 14:1201906. [PMID: 37361233 PMCID: PMC10285291 DOI: 10.3389/fphar.2023.1201906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023] Open
Abstract
Introduction: Pharmacogenetics-informed drug prescribing is increasingly applied in clinical practice. Typically, drug metabolizing phenotypes are determined based on genetic test results, whereupon dosage or drugs are adjusted. Drug-drug-interactions (DDIs) caused by concomitant medication can however cause mismatches between predicted and observed phenotypes (phenoconversion). Here we investigated the impact of CYP2C19 genotype on the outcome of CYP2C19-dependent DDIs in human liver microsomes. Methods: Liver samples from 40 patients were included, and genotyped for CYP2C19*2, *3 and *17 variants. S-mephenytoin metabolism in microsomal fractions was used as proxy for CYP2C19 activity, and concordance between genotype-predicted and observed CYP2C19 phenotype was examined. Individual microsomes were subsequently co-exposed to fluvoxamine, voriconazole, omeprazole or pantoprazole to simulate DDIs. Results: Maximal CYP2C19 activity (Vmax) in genotype-predicted intermediate metabolizers (IMs; *1/*2 or *2/*17), rapid metabolizers (RMs; *1/*17) and ultrarapid metabolizers (UMs; *17/*17) was not different from Vmax of predicted normal metabolizers (NMs; *1/*1). Conversely, CYP2C19*2/*2 genotyped-donors exhibited Vmax rates ∼9% of NMs, confirming the genotype-predicted poor metabolizer (PM) phenotype. Categorizing CYP2C19 activity, we found a 40% concordance between genetically-predicted CYP2C19 phenotypes and measured phenotypes, indicating substantial phenoconversion. Eight patients (20%) exhibited CYP2C19 IM/PM phenotypes that were not predicted by their CYP2C19 genotype, of which six could be linked to the presence of diabetes or liver disease. In subsequent DDI experiments, CYP2C19 activity was inhibited by omeprazole (-37% ± 8%), voriconazole (-59% ± 4%) and fluvoxamine (-85% ± 2%), but not by pantoprazole (-2 ± 4%). The strength of CYP2C19 inhibitors remained unaffected by CYP2C19 genotype, as similar percental declines in CYP2C19 activity and comparable metabolism-dependent inhibitory constants (Kinact/KI) of omeprazole were observed between CYP2C19 genotypes. However, the consequences of CYP2C19 inhibitor-mediated phenoconversion were different between CYP2C19 genotypes. In example, voriconazole converted 50% of *1/*1 donors to a IM/PM phenotype, but only 14% of *1/*17 donors. Fluvoxamine converted all donors to phenotypic IMs/PMs, but *1/*17 (14%) were less likely to become PMs than *1/*1 (50%) or *1/*2 and *2/*17 (57%). Conclusion: This study suggests that the differential outcome of CYP2C19-mediated DDIs between genotypes are primarily dictated by basal CYP2C19 activity, that may in part be predicted by CYP2C19 genotype but likely also depends on disease-related factors.
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Affiliation(s)
- Laura M. de Jong
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden, Netherlands
| | - Soukayna Boussallami
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden, Netherlands
| | - Elena Sánchez-López
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Martin Giera
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Maarten E. Tushuizen
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, Netherlands
| | - Menno Hoekstra
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden, Netherlands
| | - Lukas J. A. C. Hawinkels
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, Netherlands
| | - Robert Rissmann
- Centre for Human Drug Research, Leiden, Netherlands
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden, Netherlands
- Department of Dermatology, Leiden University Medical Center, Leiden, Netherlands
| | - Jesse J. Swen
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, Netherlands
| | - Martijn L. Manson
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden, Netherlands
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Personalizing atomoxetine dosing in children with ADHD: what can we learn from current supporting evidence. Eur J Clin Pharmacol 2023; 79:349-370. [PMID: 36645468 DOI: 10.1007/s00228-022-03449-1] [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: 08/24/2022] [Accepted: 12/20/2022] [Indexed: 01/17/2023]
Abstract
PURPOSE There is marked heterogeneity in treatment response of atomoxetine in patients with attention deficit/hyperactivity disorder (ADHD), especially for the pediatric population. This review aims to evaluate current evidence to characterize the dose-exposure relationship, establish clinically relevant metrics for systemic exposure to atomoxetine, define a therapeutic exposure range, and to provide a dose-adaptation strategy before implementing personalized dosing for atomoxetine in children with ADHD. METHODS A comprehensive search was performed across electronic databases (PubMed and Embase) covering the period of January 1, 1985 to July 10, 2022, to summarize recent advances in the pharmacokinetics, pharmacogenomics/pharmacogenetics (PGx), therapeutic drug monitoring (TDM), physiologically based pharmacokinetics (PBPK), and population pharmacokinetics (PPK) of atomoxetine in children with ADHD. RESULTS Some factors affecting the pharmacokinetics of atomoxetine were summarized, including food, CYP2D6 and CYP2C19 phenotypes, and drug‒drug interactions (DDIs). The association between treatment response and genetic polymorphisms of genes encoding pharmacological targets, such as norepinephrine transporter (NET/SLC6A2) and dopamine β hydroxylase (DBH), was also discussed. Based on well-developed and validated assays for monitoring plasma concentrations of atomoxetine, the therapeutic reference range in pediatric patients with ADHD proposed by several studies was summarized. However, supporting evidence on the relationship between systemic atomoxetine exposure levels and clinical response was far from sufficient. CONCLUSION Personalizing atomoxetine dosage may be even more complex than anticipated thus far, but elucidating the best way to tailor the non-stimulant to a patient's individual need will be achieved by combining two strategies: detailed research in linking the pharmacokinetics and pharmacodynamics in pediatric patients, and better understanding in nature and causes of ADHD, as well as environmental stressors.
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Voriconazole exposure is influenced by inflammation: A population pharmacokinetic model. Int J Antimicrob Agents 2023; 61:106750. [PMID: 36758777 DOI: 10.1016/j.ijantimicag.2023.106750] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 01/29/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Voriconazole is an antifungal drug used for the treatment of invasive fungal infections. Due to highly variable drug exposure, therapeutic drug monitoring (TDM) has been recommended. TDM may be helpful to predict exposure accurately, but covariates, such as severe inflammation, that influence the metabolism of voriconazole have not been included in the population pharmacokinetic (popPK) models suitable for routine TDM. OBJECTIVES To investigate whether the effect of inflammation, reflected by C-reactive protein (CRP), could improve a popPK model that can be applied in clinical care. PATIENTS AND METHODS Data from two previous studies were included in the popPK modelling. PopPK modelling was performed using Edsim++. Different popPK models were compared using Akaike Information Criterion and goodness-of-fit plots. RESULTS In total, 1060 voriconazole serum concentrations from 54 patients were included in this study. The final model was a one-compartment model with non-linear elimination. Only CRP was a significant covariate, and was included in the final model and found to affect the maximum rate of enzyme activity (Vmax). For the final popPK model, the mean volume of distribution was 145 L [coefficient of variation percentage (CV%)=61%], mean Michaelis-Menten constant was 5.7 mg/L (CV%=119%), mean Vmax was 86.4 mg/h (CV%=99%) and mean bioavailability was 0.83 (CV%=143%). Internal validation using bootstrapping resulted in median values close to the population parameter estimates. CONCLUSIONS This one-compartment model with non-linear elimination and CRP as a covariate described the pharmacokinetics of voriconazole adequately.
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[A precision medication study of atomoxetine in children with attention deficit hyperactivity disorder: CYP2D6 genetic testing and therapeutic drug monitoring]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2023; 25:98-103. [PMID: 36655671 PMCID: PMC9893827 DOI: 10.7499/j.issn.1008-8830.2208092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Atomoxetine is the first non-stimulant drug for the treatment of children and adults with attention deficit hyperactivity disorder (ADHD), and its safety and efficacy show significant differences in the pediatric population. This article reviews the genetic factors influencing the pharmacokinetic differences of atomoxetine from the aspect of the gene polymorphisms of the major metabolizing enzyme CYP2D6 of atomoxetine, and then from the perspective of therapeutic drug monitoring, this article summarizes the reference ranges of the effective concentration of atomoxetine in children with ADHD proposed by several studies. In general, there is an association between the peak plasma concentration of atomoxetine and clinical efficacy, but with a lack of data from the Chinese pediatric population. Therefore, it is necessary to establish related clinical indicators for atomoxetine exposure, define the therapeutic exposure range of children with ADHD in China, and combine CYP2D6 genotyping to provide support for the precision medication of atomoxetine.
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15
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de Almeida Campos L, Fin MT, Santos KS, de Lima Gualque MW, Freire Cabral AKL, Khalil NM, Fusco-Almeida AM, Mainardes RM, Mendes-Giannini MJS. Nanotechnology-Based Approaches for Voriconazole Delivery Applied to Invasive Fungal Infections. Pharmaceutics 2023; 15:pharmaceutics15010266. [PMID: 36678893 PMCID: PMC9863752 DOI: 10.3390/pharmaceutics15010266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/09/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023] Open
Abstract
Invasive fungal infections increase mortality and morbidity rates worldwide. The treatment of these infections is still limited due to the low bioavailability and toxicity, requiring therapeutic monitoring, especially in the most severe cases. Voriconazole is an azole widely used to treat invasive aspergillosis, other hyaline molds, many dematiaceous molds, Candida spp., including those resistant to fluconazole, and for infections caused by endemic mycoses, in addition to those that occur in the central nervous system. However, despite its broad activity, using voriconazole has limitations related to its non-linear pharmacokinetics, leading to supratherapeutic doses and increased toxicity according to individual polymorphisms during its metabolism. In this sense, nanotechnology-based drug delivery systems have successfully improved the physicochemical and biological aspects of different classes of drugs, including antifungals. In this review, we highlighted recent work that has applied nanotechnology to deliver voriconazole. These systems allowed increased permeation and deposition of voriconazole in target tissues from a controlled and sustained release in different routes of administration such as ocular, pulmonary, oral, topical, and parenteral. Thus, nanotechnology application aiming to delivery voriconazole becomes a more effective and safer therapeutic alternative in the treatment of fungal infections.
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Affiliation(s)
- Laís de Almeida Campos
- Pharmaceutical Nanotechnology Laboratory, Department of Pharmacy, Midwest State University (UNICENTRO), Alameda Élio Antonio Dalla Vecchia St, 838, Guarapuava 85040-167, PR, Brazil
| | - Margani Taise Fin
- Pharmaceutical Nanotechnology Laboratory, Department of Pharmacy, Midwest State University (UNICENTRO), Alameda Élio Antonio Dalla Vecchia St, 838, Guarapuava 85040-167, PR, Brazil
| | - Kelvin Sousa Santos
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01, Araraquara 14801-902, SP, Brazil
| | - Marcos William de Lima Gualque
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01, Araraquara 14801-902, SP, Brazil
| | - Ana Karla Lima Freire Cabral
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01, Araraquara 14801-902, SP, Brazil
| | - Najeh Maissar Khalil
- Pharmaceutical Nanotechnology Laboratory, Department of Pharmacy, Midwest State University (UNICENTRO), Alameda Élio Antonio Dalla Vecchia St, 838, Guarapuava 85040-167, PR, Brazil
| | - Ana Marisa Fusco-Almeida
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01, Araraquara 14801-902, SP, Brazil
| | - Rubiana Mara Mainardes
- Pharmaceutical Nanotechnology Laboratory, Department of Pharmacy, Midwest State University (UNICENTRO), Alameda Élio Antonio Dalla Vecchia St, 838, Guarapuava 85040-167, PR, Brazil
- Correspondence: (R.M.M.); (M.J.S.M.-G.)
| | - Maria José Soares Mendes-Giannini
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01, Araraquara 14801-902, SP, Brazil
- Correspondence: (R.M.M.); (M.J.S.M.-G.)
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Takesue Y, Hanai Y, Oda K, Hamada Y, Ueda T, Mayumi T, Matsumoto K, Fujii S, Takahashi Y, Miyazaki Y, Kimura T. Clinical Practice Guideline for the Therapeutic Drug Monitoring of Voriconazole in Non-Asian and Asian Adult Patients: Consensus Review by the Japanese Society of Chemotherapy and the Japanese Society of Therapeutic Drug Monitoring. Clin Ther 2022; 44:1604-1623. [DOI: 10.1016/j.clinthera.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/18/2022] [Accepted: 10/28/2022] [Indexed: 11/23/2022]
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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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18
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Jiang Z, Wei Y, Huang W, Li B, Zhou S, Liao L, Li T, Liang T, Yu X, Li X, Zhou C, Cao C, Liu T. Population pharmacokinetics of voriconazole and initial dosage optimization in patients with talaromycosis. Front Pharmacol 2022; 13:982981. [PMID: 36225581 PMCID: PMC9549404 DOI: 10.3389/fphar.2022.982981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/30/2022] [Indexed: 01/08/2023] Open
Abstract
The high variability and unpredictability of the plasma concentration of voriconazole (VRC) pose a major challenge for clinical administration. The aim of this study was to develop a population pharmacokinetics (PPK) model of VRC and identify the factors influencing VRC PPK in patients with talaromycosis. Medical records and VRC medication history of patients with talaromycosis who were treated with VRC as initial therapy were collected. A total of 233 blood samples from 69 patients were included in the study. A PPK model was developed using the nonlinear mixed-effects models (NONMEM). Monte Carlo simulation was applied to optimize the initial dosage regimens with a therapeutic range of 1.0–5.5 mg/L as the target plasma trough concentration. A one-compartment model with first-order absorption and elimination adequately described the data. The typical voriconazole clearance was 4.34 L/h, the volume of distribution was 97.4 L, the absorption rate constant was set at 1.1 h-1, and the bioavailability was 95.1%. Clearance was found to be significantly associated with C-reactive protein (CRP). CYP2C19 polymorphisms had no effect on voriconazole pharmacokinetic parameters. Monte Carlo simulation based on CRP levels showed that a loading dose of 250 mg/12 h and a maintenance dose of 100 mg/12 h are recommended for patients with CRP ≤ 96 mg/L, whereas a loading dose of 200 mg/12 h and a maintenance dose of 75 mg/12 h are recommended for patients with CRP > 96 mg/L. The average probability of target attainment of the optimal dosage regimen in CRP ≤ 96 mg/L and CRP > 96 mg/L groups were 61.3% and 13.6% higher than with empirical medication, and the proportion of Cmin > 5.5 mg/L decreased by 28.9%. In conclusion, the VRC PPK model for talaromycosis patients shows good robustness and predictive performance, which can provide a reference for the clinical individualization of VRC. Adjusting initial dosage regimens based on CRP may promote the rational use of VRC.
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Affiliation(s)
- Zhiwen Jiang
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning, China
| | - Yinyi Wei
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Weie Huang
- Department of Infectious Diseases, Baise People’s Hospital, Baise, China
| | - Bingkun Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning, China
| | - Siru Zhou
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Liuwei Liao
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning, China
| | - Tiantian Li
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning, China
| | - Tianwei Liang
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning, China
| | - Xiaoshu Yu
- Department of Infectious Diseases, Baise People’s Hospital, Baise, China
| | - Xiuying Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning, China
| | - Changjing Zhou
- Department of Infectious Diseases, Baise People’s Hospital, Baise, China
- *Correspondence: Changjing Zhou, ; Cunwei Cao, ; TaoTao Liu,
| | - Cunwei Cao
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Health Commission Key Lab of Fungi and Mycosis Research and Prevention, Nanning, China
- *Correspondence: Changjing Zhou, ; Cunwei Cao, ; TaoTao Liu,
| | - TaoTao Liu
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- *Correspondence: Changjing Zhou, ; Cunwei Cao, ; TaoTao Liu,
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Ye Q, Yu X, Chen W, Li M, Gu S, Huang L, Zhan Q, Wang C. Impact of extracorporeal membrane oxygenation on voriconazole plasma concentrations: A retrospective study. Front Pharmacol 2022; 13:972585. [PMID: 36059951 PMCID: PMC9428491 DOI: 10.3389/fphar.2022.972585] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 07/19/2022] [Indexed: 12/03/2022] Open
Abstract
Aims: We aimed to assess the impact of extracorporeal membrane oxygenation (ECMO) on voriconazole exposure. Methods: Adult critically ill patients with or without ECMO support receiving intravenous voriconazole therapy were included in this retrospective study conducted in a tertiary referral intensive care unit. The first therapeutic drug monitoring (TDM) results of voriconazole in ECMO patients and non-ECMO patients were collected, and the prevalence of subtherapeutic concentrations was analyzed. Multivariate analyses were performed to evaluate the effect of ECMO on voriconazole exposure. Results: A total of 132 patients (including 66 patients with ECMO support) were enrolled and their respective first voriconazole trough concentrations (Cmin) were recorded. The median Cmin of the ECMO group and the non-ECMO group was 1.9 (1.4–4.4) and 4.4 (3.2–6.9) mg/L, respectively (p = 0.000), and the proportion of the two groups in subtherapeutic concentrations range (<2 mg/L) was 51.5% and 7.6%, respectively (p = 0.000). Multiple linear regression analysis of voriconazole Cmin identified that the use of ECMO and coadministration of glucocorticoids were associated with significantly reduced concentrations, while increasing SOFA score and increasing daily dose were associated with significantly increased concentrations. The model accounted for 32.2% of the variability of voriconazole Cmin. Furthermore, binary logistic regression demonstrated that the use of ECMO was an independent risk factor (OR = 7.78, p = 0.012) for insufficient voriconazole exposure. Conclusion: Our findings showed that, in addition to the known drug interactions, ECMO is a significant covariable affecting voriconazole exposure. In addition, SOFA score was identified as a factor associated with increased voriconazole concentration.
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Affiliation(s)
- Qinghua Ye
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Xin Yu
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Wenqian Chen
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, China
| | - Min Li
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Sichao Gu
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Linna Huang
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Qingyuan Zhan
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
- *Correspondence: Qingyuan Zhan,
| | - Chen Wang
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Maeda Y, Tanaka R, Tatsuta R, Takano K, Hashimoto T, Ogata M, Hiramatsu K, Itoh H. Impact of Inflammation on Intra-individual Variation in Trough Voriconazole Concentration in Patients with Hematological Malignancies. Biol Pharm Bull 2022; 45:1084-1090. [DOI: 10.1248/bpb.b22-00097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yu Maeda
- Department of Clinical Pharmacy, Oita University Hospital
| | - Ryota Tanaka
- Department of Clinical Pharmacy, Oita University Hospital
| | | | | | - Takehiro Hashimoto
- Department of Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine
| | - Masao Ogata
- Department of Hematology, Oita University Hospital
| | - Kazufumi Hiramatsu
- Department of Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine
| | - Hiroki Itoh
- Department of Clinical Pharmacy, Oita University Hospital
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21
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Challenges in the Treatment of Invasive Aspergillosis in Immunocompromised Children. Antimicrob Agents Chemother 2022; 66:e0215621. [PMID: 35766509 PMCID: PMC9295552 DOI: 10.1128/aac.02156-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Invasive aspergillosis (IA) is associated with significant morbidity and mortality. Voriconazole remains the drug of choice for the treatment of IA in children; however, the complex kinetics of voriconazole in children make dosing challenging and therapeutic drug monitoring (TDM) essential for treatment success. The overarching goal of this review is to discuss the role of voriconazole, posaconazole, isavuconazole, liposomal amphotericin B, echinocandins, and combination antifungal therapy for the treatment of IA in children. We also provide a detailed discussion of antifungal TDM in children.
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22
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Huang W, Zheng Y, Huang H, Cheng Y, Liu M, Chaphekar N, Wu X. External evaluation of population pharmacokinetic models for voriconazole in Chinese adult patients with hematological malignancy. Eur J Clin Pharmacol 2022; 78:1447-1457. [PMID: 35764817 DOI: 10.1007/s00228-022-03359-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 06/19/2022] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Patients with hematological malignancies are prone to invasive fungal disease due to long-term chemotherapy or radiotherapy. Voriconazole is a second-generation triazole broad-spectrum antibiotic used to prevent or treat invasive fungal infections. Many population pharmacokinetic (pop PK) models have been published for voriconazole, and various diagnostic methods are available to validate the performance of these pop PK models. However, most of the published models have not been strictly evaluated externally. The purpose of this study is to evaluate these models externally and assess their predictive capabilities. METHODS The external dataset consists of adults receiving voriconazole treatment at Fujian Medical University Union Hospital. We re-established the published models based on their final estimated values in the literature and used our external dataset for initial screening. Each model was evaluated based on the following outcomes: prediction-based diagnostics, prediction- and variability-corrected visual predictive check (pvcVPC), normalized prediction distribution errors (NPDE), and Bayesian simulation results with one to two prior observations. RESULTS A total of 237 samples from 166 patients were collected as an external dataset. After screening, six candidate models suitable for the external dataset were finally obtained for comparison. Among the models, none demonstrated excellent predictive performance. Bayesian simulation shows that all models' prediction precision and accuracy were significantly improved when one or two prior concentrations were given. CONCLUSIONS The published pop PK models of voriconazole have significant differences in prediction performance, and none of the models could perfectly predict the concentrations of voriconazole for our data. Therefore, extensive evaluation should precede the adoption of any model in clinical practice.
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Affiliation(s)
- Weikun Huang
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Rd., Fuzhou, 350001, Fujian, China.,School of Pharmacy, Fujian Medical University, Fuzhou, Fujian, China
| | - You Zheng
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Rd., Fuzhou, 350001, Fujian, China.,School of Pharmacy, Fujian Medical University, Fuzhou, Fujian, China
| | - Huiping Huang
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Rd., Fuzhou, 350001, Fujian, China.,School of Pharmacy, Fujian Medical University, Fuzhou, Fujian, China
| | - Yu Cheng
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Rd., Fuzhou, 350001, Fujian, China
| | - Maobai Liu
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Rd., Fuzhou, 350001, Fujian, China
| | - Nupur Chaphekar
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xuemei Wu
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Rd., Fuzhou, 350001, Fujian, China. .,School of Pharmacy, Fujian Medical University, Fuzhou, Fujian, China.
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23
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Li Z, Wu C, Wang C, Deng Z. Spectrum of voriconazole-associated periostitis in clinical characteristics, diagnosis and management. Infection 2022; 50:1217-1224. [PMID: 35288847 DOI: 10.1007/s15010-022-01795-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/25/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Previous knowledge about the relationship between voriconazole exposure and periostitis was mainly based on limited case reports and few retrospective studies. The purpose of this study was to assess the clinical characteristics, diagnosis and management of voriconazole-associated periostitis. METHODS Case reports and case series from 1998 to November 30, 2021 on periostitis induced by voriconazole were collected for retrospective analysis. RESULTS Forty four patients (18 male and 26 female) from 34 studies were included in total. The median age was 58 years (29-74). The majority of patients had undergone organ transplantation (50.0%) or suffered from hematologic malignancy (31.81%). The median onset time of symptoms was 6 months after the start of voriconazole. The most common initial symptom was diffuse skeletal pain (68.28%) which can be severe and even disabling (66.7%). Ribs (37.21%), femurs (32.56%), scapulae (25.58%), humerus (23.26%), and clavicle (23.26%) were the common involved locations. Most cases were accompanied by different degrees of elevated serum alkaline phosphatase and fluoride level, while some presented with elevated bone-specific alkaline phosphatase. The main radiological features included periosteal reaction and multifocal high radiotracer uptake on bone scintigraphy. The formation of new bone was characterized with bilateral, irregular, nodular, as well as high density. The resolution of symptoms was observed with discontinuation of voriconazole in all patients, of whom 18 patients (52.94%) were relieved within a week. Itraconazole, posaconazole or isavuconazole were safe alternatives to voriconazole in voriconazole-induced periostitis. CONCLUSION Voriconazole-induced periostitis is an infrequent complication characterized by bone inflammation involving one or multiple skeletal areas. Bony pain, elevated serum alkaline phosphatase as well as fluoride level are suspicious signs during voriconazole treatment.
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Affiliation(s)
- Zuojun Li
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Cuifang Wu
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Chunjiang Wang
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Zhenzhen Deng
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China.
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24
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Kably B, Launay M, Derobertmasure A, Lefeuvre S, Dannaoui E, Billaud EM. Antifungal Drugs TDM: Trends and Update. Ther Drug Monit 2022; 44:166-197. [PMID: 34923544 DOI: 10.1097/ftd.0000000000000952] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 12/09/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE The increasing burden of invasive fungal infections results in growing challenges to antifungal (AF) therapeutic drug monitoring (TDM). This review aims to provide an overview of recent advances in AF TDM. METHODS We conducted a PubMed search for articles during 2016-2020 using "TDM" or "pharmacokinetics" or "drug-drug-interaction" with "antifungal," consolidated for each AF. Selection was limited to English language articles with human data on drug exposure. RESULTS More than 1000 articles matched the search terms. We selected 566 publications. The latest findings tend to confirm previous observations in real-life clinical settings. The pharmacokinetic variability related to special populations is not specific but must be considered. AF benefit-to-risk ratio, drug-drug interaction (DDI) profiles, and minimal inhibitory concentrations for pathogens must be known to manage at-risk situations and patients. Itraconazole has replaced ketoconazole in healthy volunteers DDI studies. Physiologically based pharmacokinetic modeling is widely used to assess metabolic azole DDI. AF prophylactic use was studied more for Aspergillus spp. and Mucorales in oncohematology and solid organ transplantation than for Candida (already studied). Emergence of central nervous system infection and severe infections in immunocompetent individuals both merit special attention. TDM is more challenging for azoles than amphotericin B and echinocandins. Fewer TDM requirements exist for fluconazole and isavuconazole (ISZ); however, ISZ is frequently used in clinical situations in which TDM is recommended. Voriconazole remains the most challenging of the AF, with toxicity limiting high-dose treatments. Moreover, alternative treatments (posaconazole tablets, ISZ) are now available. CONCLUSIONS TDM seems to be crucial for curative and/or long-term maintenance treatment in highly variable patients. TDM poses fewer cost issues than the drugs themselves or subsequent treatment issues. The integration of clinical pharmacology into multidisciplinary management is now increasingly seen as a part of patient care.
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Affiliation(s)
- Benjamin Kably
- Laboratoire de Pharmacologie-Toxicologie, Hôpital Européen Georges Pompidou, AP-HP Centre
- Faculté de Médecine, Université de Paris, Paris, France
| | - Manon Launay
- Laboratoire de Pharmacologie-Toxicologie-Gaz du sang, Hôpital Nord-CHU Saint Etienne, Saint-Etienne
| | - Audrey Derobertmasure
- Laboratoire de Pharmacologie-Toxicologie, Hôpital Européen Georges Pompidou, AP-HP Centre
| | - Sandrine Lefeuvre
- Laboratoire de Toxicologie et Pharmacocinétique, CHU de Poitiers, Poitiers; and
| | - Eric Dannaoui
- Faculté de Médecine, Université de Paris, Paris, France
- Unité de Parasitologie-Mycologie, Laboratoire de Microbiologie, Hôpital Européen Georges Pompidou, Paris, France
| | - Eliane M Billaud
- Laboratoire de Pharmacologie-Toxicologie, Hôpital Européen Georges Pompidou, AP-HP Centre
- Faculté de Médecine, Université de Paris, Paris, France
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25
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Li S, Wu S, Gong W, Cao P, Chen X, Liu W, Xiang L, Wang Y, Huang J. Application of Population Pharmacokinetic Analysis to Characterize CYP2C19 Mediated Metabolic Mechanism of Voriconazole and Support Dose Optimization. Front Pharmacol 2022; 12:730826. [PMID: 35046798 PMCID: PMC8762230 DOI: 10.3389/fphar.2021.730826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 12/08/2021] [Indexed: 11/13/2022] Open
Abstract
Purpose: The aims of this study were to establish a joint population pharmacokinetic model for voriconazole and its N-oxide metabolite in immunocompromised patients, to determine the extent to which the CYP2C19 genetic polymorphisms influenced the pharmacokinetic parameters, and to evaluate and optimize the dosing regimens using a simulating approach. Methods: A population pharmacokinetic analysis was conducted using the Phoenix NLME software based on 427 plasma concentrations from 78 patients receiving multiple oral doses of voriconazole (200 mg twice daily). The final model was assessed by goodness of fit plots, non-parametric bootstrap method, and visual predictive check. Monte Carlo simulations were carried out to evaluate and optimize the dosing regimens. Results: A one-compartment model with first-order absorption and mixed linear and concentration-dependent-nonlinear elimination fitted well to concentration-time profile of voriconazole, while one-compartment model with first-order elimination well described the disposition of voriconazole N-oxide. Covariate analysis indicated that voriconazole pharmacokinetics was substantially influenced by the CYP2C19 genetic variations. Simulations showed that the recommended maintenance dose regimen would lead to subtherapeutic levels in patients with different CYP2C19 genotypes, and elevated daily doses of voriconazole might be required to attain the therapeutic range. Conclusions: The joint population pharmacokinetic model successfully characterized the pharmacokinetics of voriconazole and its N-oxide metabolite in immunocompromised patients. The proposed maintenance dose regimens could provide a rationale for dosage individualization to improve clinical outcomes and minimize drug-related toxicities.
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Affiliation(s)
- SiChan Li
- Department of Clinical Pharmacy, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - SanLan Wu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - WeiJing Gong
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Peng Cao
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Xin Chen
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wanyu Liu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liping Xiang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, China
| | - Yang Wang
- Department of Clinical Pharmacy, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - JianGeng Huang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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26
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Yang P, Liu W, Zheng J, Zhang Y, Yang L, He N, Zhai S. Predicting the Outcome of Voriconazole Individualized Medication Using Integrated Pharmacokinetic/Pharmacodynamic Model. Front Pharmacol 2021; 12:711187. [PMID: 34721012 PMCID: PMC8548711 DOI: 10.3389/fphar.2021.711187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/13/2021] [Indexed: 11/13/2022] Open
Abstract
Therapeutic drug monitoring is considered to be an effective tool for the individualized use of voriconazole. However, drug concentration measurement alone doesn’t take into account the susceptibility of the infecting microorganisms to the drug. Linking pharmacodynamic data with the pharmacokinetic profile of individuals is expected to be an effective method to predict the probability of a certain therapeutic outcome. The objective of this study was to individualize voriconazole regimens by integrating individual pharmacokinetic parameters and pathogen susceptibility data through Monte Carlo simulations The individual pharmacokinetic parameters of 35 hospitalized patients who received voriconazole were calculated based on a validated population pharmacokinetic model. The area under the concentration-time curve for free drug/minimal inhibitory concentration (fAUCss/MIC) > 25 was selected as the pharmacokinetic/pharmacodynamic (PK/PD) parameter predicting the efficacy of voriconazole. The cumulative fraction of response (CFR) of the target value was assessed. To verify this conclusion, a logistic regression analysis was used to explore the relationship between actual clinical efficiency and the CFR value. For the 35 patients, the area under the free drug concentration-time curve (fAUCss) was calculated to be 34.90 ± 21.67 mgh/L. According to the dualistic logistic regression analysis, the minimal inhibitory concentration (MIC) value of different kinds of fungi had a great influence on the effectiveness of clinical treatment. It also showed that the actual clinical efficacy and the CFR value of fAUCss/MIC had a high degree of consistency. The results suggest that it is feasible to individualize voriconazole dosing and predict clinical outcomes through the integration of data on pharmacokinetics and antifungal susceptibility.
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Affiliation(s)
- Ping Yang
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Wei Liu
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Jiajia Zheng
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China
| | - Yuanyuan Zhang
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Li Yang
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Na He
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Suodi Zhai
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
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27
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Suetsugu K, Muraki S, Fukumoto J, Matsukane R, Mori Y, Hirota T, Miyamoto T, Egashira N, Akashi K, Ieiri I. Effects of Letermovir and/or Methylprednisolone Coadministration on Voriconazole Pharmacokinetics in Hematopoietic Stem Cell Transplantation: A Population Pharmacokinetic Study. Drugs R D 2021; 21:419-429. [PMID: 34655050 PMCID: PMC8602551 DOI: 10.1007/s40268-021-00365-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2021] [Indexed: 11/26/2022] Open
Abstract
Objective The aim of this study was to identify factors affecting blood concentrations of voriconazole following letermovir coadministration using population pharmacokinetic (PPK) analysis in allogeneic hematopoietic stem cell transplant (allo-HSCT) recipients. Methods The following data were retrospectively collected: voriconazole trough levels, patient characteristics, concomitant drugs, and laboratory information. PPK analysis was performed with NONMEM® version 7.4.3, using the first-order conditional estimation method with interaction. We collected data on plasma voriconazole steady-state trough concentrations at 216 timepoints for 47 patients. A nonlinear pharmacokinetic model with the Michaelis–Menten equation was applied to describe the relationship between steady-state trough concentration and daily maintenance dose of voriconazole. After stepwise covariate modeling, the final model was evaluated using a goodness-of-fit plot, case deletion diagnostics, and bootstrap methods. Results The maximum elimination rate (Vmax) of voriconazole in patients coadministered letermovir and methylprednisolone was 1.72 and 1.30 times larger than that in patients not coadministered these drugs, respectively, resulting in decreased voriconazole trough concentrations. The developed PPK model adequately described the voriconazole trough concentration profiles in allo-HSCT recipients. Simulations clearly showed that increased daily doses of voriconazole were required to achieve an optimal trough voriconazole concentration (1–5 mg/L) when patients received voriconazole with letermovir and/or methylprednisolone. Conclusions The development of individualized dose adjustment is critical to achieve optimal voriconazole concentration, especially among allo-HSCT recipients receiving concomitant letermovir and/or methylprednisolone. Supplementary Information The online version contains supplementary material available at 10.1007/s40268-021-00365-0.
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Affiliation(s)
- Kimitaka Suetsugu
- Department of Pharmacy, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shota Muraki
- Department of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Junshiro Fukumoto
- Department of Clinical Pharmacology and Biopharmaceutics, The Pharmaceutical College, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ryosuke Matsukane
- Department of Pharmacy, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yasuo Mori
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takeshi Hirota
- Department of Pharmacy, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Department of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Toshihiro Miyamoto
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Nobuaki Egashira
- Department of Pharmacy, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Department of Clinical Pharmacology and Biopharmaceutics, The Pharmaceutical College, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Koichi Akashi
- Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ichiro Ieiri
- Department of Pharmacy, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. .,Department of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. .,Department of Clinical Pharmacology and Biopharmaceutics, The Pharmaceutical College, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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28
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Lin XB, Lui KY, Guo PH, Liu XM, Liang T, Hu XG, Tong L, Wu JJ, Xia YZ, Chen P, Zhong GP, Chen X, Cai CJ. Population pharmacokinetic model-guided optimization of intravenous voriconazole dosing regimens in critically ill patients with liver dysfunction. Pharmacotherapy 2021; 42:23-33. [PMID: 34655497 DOI: 10.1002/phar.2634] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/27/2021] [Accepted: 10/04/2021] [Indexed: 11/10/2022]
Abstract
STUDY OBJECTIVES This study aimed to establish a population pharmacokinetic (PPK) model of intravenous voriconazole (VRC) in critically ill patients with liver dysfunction and to explore the optimal dosing strategies in specific clinical scenarios for invasive fungal infections (IFIs) caused by common Aspergillus and Candida species. DESIGN Prospective pharmacokinetics study. SETTING The intensive care unit in a tertiary-care medical center. PATIENTS A total of 297 plasma VRC concentrations from 26 critically ill patients with liver dysfunction were included in the PPK analysis. METHODS Model-based simulations with therapeutic range of 2-6 mg/L as the plasma trough concentration (Cmin ) target and the free area under the concentration-time curve from 0 to 24 h (ƒAUC24 ) divided by the minimum inhibitory concentration (MIC) (ie, ƒAUC24 /MIC) ≥25 as the effective target were performed to optimize VRC dosing regimens for Child-Pugh class A and B (CP-A/B) and Child-Pugh class C (CP-C) patients. RESULTS A two-compartment model with first-order elimination adequately described the data. Significant covariates in the final model were body weight on both central and peripheral distribution volume and Child-Pugh class on clearance. Intravenous VRC loading dose of 5 mg/kg every 12 h (q12h) for the first day was adequate for CP-A/B and CP-C patients to attain the Cmin target at 24 h. The maintenance dose regimens of 100 mg q12h or 200 mg q24h for CP-A/B patients and 50 mg q12h or 100 mg q24h for CP-C patients could obtain the probability of effective target attainment of >90% at an MIC ≤0.5 mg/L and achieve the cumulative fraction of response of >90% against C. albicans, C. parapsilosis, C. glabrata, C. krusei, A. fumigatus, and A. flavus. Additionally, the daily VRC doses could be increased by 50 mg for CP-A/B and CP-C patients at an MIC of 1 mg/L, with plasma Cmin monitored closely to avoid serious adverse events. It is recommended that an appropriate alternative antifungal agent or a combination therapy could be adopted when an MIC ≥2 mg/L is reported, or when the infection is caused by C. tropicalis but the MIC value is not available. CONCLUSIONS For critically ill patients with liver dysfunction, the loading dose of intravenous VRC should be reduced to 5 mg/kg q12h. Additionally, based on the types of fungal pathogens and their susceptibility to VRC, the adjusted maintenance dose regimens with lower doses or longer dosing intervals should be considered for CP-A/B and CP-C patients.
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Affiliation(s)
- Xiao-Bin Lin
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ka Yin Lui
- Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Peng-Hao Guo
- Department of Clinical Laboratory, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Man Liu
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tao Liang
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Guang Hu
- Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Li Tong
- Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing-Jing Wu
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan-Zhe Xia
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Pan Chen
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Guo-Ping Zhong
- Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiao Chen
- Department of Pharmacy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chang-Jie Cai
- Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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29
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Zhao Y, Hou J, Xiao Y, Wang F, Zhang B, Zhang M, Jiang Y, Li J, Gong G, Xiang D, Yan M. Predictors of Voriconazole Trough Concentrations in Patients with Child-Pugh Class C Cirrhosis: A Prospective Study. Antibiotics (Basel) 2021; 10:antibiotics10091130. [PMID: 34572712 PMCID: PMC8470058 DOI: 10.3390/antibiotics10091130] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/12/2021] [Accepted: 09/14/2021] [Indexed: 12/13/2022] Open
Abstract
This prospective observational study aimed to clinically describe voriconazole administrations and trough concentrations in patients with Child–Pugh class C and to investigate the variability of trough concentration. A total of 144 voriconazole trough concentrations from 43 Child–Pugh class C patients were analyzed. The majority of patients (62.8%) received adjustments. The repeated measured trough concentration was higher than the first and final ones generally (median, 4.33 vs. 2.99, 3.90 mg/L). Eight patients with ideal initial concentrations later got supratherapeutic with no adjusted daily dose, implying accumulation. There was a significant difference in concentrations among the six groups by daily dose (p = 0.006). The bivariate correlation analysis showed that sex, CYP2C19 genotyping, daily dose, prothrombin time activity, international normalized ratio, platelet, and Model for end-stage liver disease score were significant factors for concentration. Subsequently, the first four factors mentioned above entered into a stepwise multiple linear regression model (variance inflation factor <5), implying that CYP2C19 testing makes sense for precision medicine of Child–Pugh class C cirrhosis patients. The equation fits well and explains the 34.8% variety of concentrations (R2 = 0.348). In conclusion, it needs more cautious administration clinically due to no recommendation for Child–Pugh class C patients in the medication label. The adjustment of the administration regimen should be mainly based on the results of repeated therapeutic drug monitoring.
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Affiliation(s)
- Yichang Zhao
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
| | - Jingjing Hou
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
| | - Yiwen Xiao
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
| | - Feng Wang
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
| | - Bikui Zhang
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
| | - Min Zhang
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Department of Infection, Central South University, Changsha 410011, China
| | - Yongfang Jiang
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Department of Infection, Central South University, Changsha 410011, China
| | - Jiakai Li
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
| | - Guozhong Gong
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Department of Infection, Central South University, Changsha 410011, China
| | - Daxiong Xiang
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
| | - Miao Yan
- The Second Xiangya Hospital, Central South University, Changsha 410011, China; (Y.Z.); (J.H.); (Y.X.); (F.W.); (B.Z.); (M.Z.); (Y.J.); (J.L.); (G.G.); (D.X.)
- Institute of Clinical Pharmacy, Central South University, Changsha 410011, China
- Correspondence: ; Tel.: +86-0731-8529-2098; Fax: +86-0731-8443-6720
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Arastehfar A, Carvalho A, Houbraken J, Lombardi L, Garcia-Rubio R, Jenks J, Rivero-Menendez O, Aljohani R, Jacobsen I, Berman J, Osherov N, Hedayati M, Ilkit M, Armstrong-James D, Gabaldón T, Meletiadis J, Kostrzewa M, Pan W, Lass-Flörl C, Perlin D, Hoenigl M. Aspergillus fumigatus and aspergillosis: From basics to clinics. Stud Mycol 2021; 100:100115. [PMID: 34035866 PMCID: PMC8131930 DOI: 10.1016/j.simyco.2021.100115] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The airborne fungus Aspergillus fumigatus poses a serious health threat to humans by causing numerous invasive infections and a notable mortality in humans, especially in immunocompromised patients. Mould-active azoles are the frontline therapeutics employed to treat aspergillosis. The global emergence of azole-resistant A. fumigatus isolates in clinic and environment, however, notoriously limits the therapeutic options of mould-active antifungals and potentially can be attributed to a mortality rate reaching up to 100 %. Although specific mutations in CYP 51A are the main cause of azole resistance, there is a new wave of azole-resistant isolates with wild-type CYP 51A genotype challenging the efficacy of the current diagnostic tools. Therefore, applications of whole-genome sequencing are increasingly gaining popularity to overcome such challenges. Prominent echinocandin tolerance, as well as liver and kidney toxicity posed by amphotericin B, necessitate a continuous quest for novel antifungal drugs to combat emerging azole-resistant A. fumigatus isolates. Animal models and the tools used for genetic engineering require further refinement to facilitate a better understanding about the resistance mechanisms, virulence, and immune reactions orchestrated against A. fumigatus. This review paper comprehensively discusses the current clinical challenges caused by A. fumigatus and provides insights on how to address them.
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Affiliation(s)
- A. Arastehfar
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ, 07110, USA
| | - A. Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - J. Houbraken
- Westerdijk Fungal Biodiversity Institute, Utrecht, the Netherlands
| | - L. Lombardi
- UCD Conway Institute and School of Medicine, University College Dublin, Dublin 4, Ireland
| | - R. Garcia-Rubio
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ, 07110, USA
| | - J.D. Jenks
- Department of Medicine, University of California San Diego, San Diego, CA, 92103, USA
- Clinical and Translational Fungal-Working Group, University of California San Diego, La Jolla, CA, 92093, USA
| | - O. Rivero-Menendez
- Medical Mycology Reference Laboratory, National Center for Microbiology, Instituto de Salud Carlos III, Madrid, 28222, Spain
| | - R. Aljohani
- Department of Infectious Diseases, Imperial College London, London, UK
| | - I.D. Jacobsen
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology—Hans Knöll Institute, Jena, Germany
- Institute for Microbiology, Friedrich Schiller University, Jena, Germany
| | - J. Berman
- Research Group Microbial Immunology, Leibniz Institute for Natural Product Research and Infection Biology—Hans Knöll Institute, Jena, Germany
| | - N. Osherov
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine Ramat-Aviv, Tel-Aviv, 69978, Israel
| | - M.T. Hedayati
- Invasive Fungi Research Center/Department of Medical Mycology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - M. Ilkit
- Division of Mycology, Department of Microbiology, Faculty of Medicine, Çukurova University, 01330, Adana, Turkey
| | | | - T. Gabaldón
- Life Sciences Programme, Supercomputing Center (BSC-CNS), Jordi Girona, Barcelona, 08034, Spain
- Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB), Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - J. Meletiadis
- Clinical Microbiology Laboratory, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - W. Pan
- Medical Mycology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - C. Lass-Flörl
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - D.S. Perlin
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ, 07110, USA
| | - M. Hoenigl
- Department of Medicine, University of California San Diego, San Diego, CA, 92103, USA
- Section of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Medical University of Graz, 8036, Graz, Austria
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California San Diego, San Diego, CA 92093, USA
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Model-Oriented Dose Optimization of Voriconazole in Critically Ill Children. Antimicrob Agents Chemother 2021; 65:e0049321. [PMID: 34152812 DOI: 10.1128/aac.00493-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This study aimed to employ a population pharmacokinetic (PK) model to optimize the dosing regimen of voriconazole (VRC) in children with a critical illness. A total of 99 children aged from 0.44 to 13.58 years were included in this study. The stability and predictive performance of the final model were evaluated by statistical and graphical methods. The optimal dosing regimen was proposed for children with different body weights, CYP2C19 phenotypes, and coadministrations with omeprazole. The PK of VRC was described by a two-compartment model with nonlinear Michaelis-Menten elimination. Body weight, CYP2C19 phenotype, and omeprazole were significant covariates on the maximum velocity of elimination (Vmax), which had an estimated typical value of 18.13 mg · h-1. Bayesian estimation suggested that the dose-normalized concentration and total exposure (peak concentration [Cmax]/D, trough concentration [Cmin]/D, and area under the concentration-time curve over 24 h [AUC24]/D) were significantly different between extensive metabolizer (EM) patients and poor metabolizer (PM) patients. To achieve the target concentration early, two loading doses of 9 mg · kg-1 of body weight every 12 h (q12h) were reliable for most children, whereas three loading doses of 6 to 7.5 mg · kg-1 q8h were warranted for young children weighing ≤18 kg (except for PM patients). The maintenance doses decreased about 30 to 40% in PM patients compared to that in EM patients. For children aged <2 years, in EM patients, the maintenance dose could be as high as 9 mg · kg-1. The maintenance dose of VRC was supposed to decrease slightly when coadministered with omeprazole. A population PK model of intravenous VRC for critically ill children has been successfully developed. It is necessary to adjust dosing regimens according to the CYP2C19 genotype. Optimal dosing regimens have been recommended based on the final model.
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Chaudhri K, Stocker SL, Williams KM, McLeay RC, Marriott DJE, Di Tanna GL, Day RO, Carland JE. Voriconazole: an audit of hospital-based dosing and monitoring and evaluation of the predictive performance of a dose-prediction software package. J Antimicrob Chemother 2021; 75:1981-1984. [PMID: 32277819 DOI: 10.1093/jac/dkaa098] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 02/20/2020] [Accepted: 02/22/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Therapeutic drug monitoring (TDM) is recommended to guide voriconazole therapy. OBJECTIVES To determine compliance of hospital-based voriconazole dosing and TDM with the Australian national guidelines and evaluate the predictive performance of a one-compartment population pharmacokinetic voriconazole model available in a commercial dose-prediction software package. METHODS A retrospective audit of voriconazole therapy at an Australian public hospital (1 January to 31 December 2016) was undertaken. Data collected included patient demographics, dosing history and plasma concentrations. Concordance of dosing and TDM with Australian guidelines was assessed. Observed concentrations were compared with those predicted by dose-prediction software. Measures of bias (mean prediction error) and precision (mean squared prediction error) were calculated. RESULTS Adherence to dosing guidelines for 110 courses of therapy (41% for prophylaxis and 59% for invasive fungal infections) was poor, unless oral formulation guidelines recommended a 200 mg dose, the most commonly prescribed dose (56% of prescriptions). Plasma voriconazole concentrations were obtained for 82% (90/110) of courses [median of 3 (range: 1-27) obtained per course]. A minority (27%) of plasma concentrations were trough concentrations [median concentration: 1.5 mg/L (range: <0.1 to >5.0 mg/L)]. Of trough concentrations, 57% (58/101) were therapeutic, 37% (37/101) were subtherapeutic and 6% (6/101) were supratherapeutic. The dose-prediction software performed well, with acceptable bias and precision of 0.09 mg/L (95% CI -0.08 to 0.27) and 1.32 (mg/L)2 (95% CI 0.96-1.67), respectively. CONCLUSIONS Voriconazole dosing was suboptimal based on published guidelines and TDM results. Dose-prediction software could enhance TDM-guided therapy.
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Affiliation(s)
- Kanika Chaudhri
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Darlinghurst, NSW, Australia.,School of Medical Sciences, University of NSW, Kensington, NSW, Australia
| | - Sophie L Stocker
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Darlinghurst, NSW, Australia.,St Vincent's Clinical School, University of NSW, Kensington, NSW, Australia
| | - Kenneth M Williams
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Darlinghurst, NSW, Australia.,School of Medical Sciences, University of NSW, Kensington, NSW, Australia
| | | | - Deborah J E Marriott
- St Vincent's Clinical School, University of NSW, Kensington, NSW, Australia.,Department of Clinical Microbiology and Infectious Diseases, St Vincent's Hospital, Darlinghurst, NSW, Australia
| | - Gian Luca Di Tanna
- The George Institute for Global Health, Newtown, NSW, Australia.,Faculty of Medicine, University of NSW, Kensington, NSW, Australia
| | - Richard O Day
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Darlinghurst, NSW, Australia.,School of Medical Sciences, University of NSW, Kensington, NSW, Australia.,St Vincent's Clinical School, University of NSW, Kensington, NSW, Australia
| | - Jane E Carland
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Darlinghurst, NSW, Australia.,St Vincent's Clinical School, University of NSW, Kensington, NSW, Australia
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Leroux S, Mechinaud-Heloury F, Jacqz-Aigrain E. Contribution of Population Pharmacokinetics of Glycopeptides and Antifungals to Dosage Adaptation in Paediatric Onco-hematological Malignancies: A Review. Front Pharmacol 2021; 12:635345. [PMID: 33867986 PMCID: PMC8048069 DOI: 10.3389/fphar.2021.635345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/08/2021] [Indexed: 11/29/2022] Open
Abstract
The response to medications in children differs not only in comparison to adults but also between children of the different age groups and according to the disease. This is true for anti-infectives that are widely prescribed in children with malignancy. In the absence of pharmacokinetic/pharmacodynamic paediatric studies, dosage is frequently based on protocols adapted to adults. After a short presentation of the drugs, we reviewed the population pharmacokinetic studies available for glycopeptides (vancomycin and teicoplanin, n = 5) and antifungals (voriconazole, posaconazole, and amphotericin B, n = 9) currently administered in children with onco-hematological malignancies. For each of them, we reported the main study characteristics including identified covariates affecting pharmacokinetics and proposed paediatric dosage recommendations. This review highlighted the very limited amount of data available, the lack of consensus regarding PK/PD targets used for dosing optimization and regarding dosage recommendations when available. Additional PK studies are urgently needed in this specific patient population. In addition to pharmacokinetics, efficacy may be altered in immunocompromised patients and prospective clinical evaluation of new dosage regimen should be provided as they are missing in most cases.
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Affiliation(s)
- Stéphanie Leroux
- Department of Paediatrics, CHU Rennes, University of Rennes 1, Rennes, France.,Department of Paediatric Pharmacology and Pharmacogenetics, University Hospital Robert Debré (APHP), Rennes, France
| | | | - Evelyne Jacqz-Aigrain
- Department of Paediatric Pharmacology and Pharmacogenetics, University Hospital Robert Debré (APHP), Rennes, France.,Paris University, Paris, France
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Harada S, Niwa T, Hoshino Y, Fujibayashi A, Suzuki A. Influence of switching from intravenous to oral administration on serum voriconazole concentration. J Clin Pharm Ther 2021; 46:780-785. [PMID: 33393135 DOI: 10.1111/jcpt.13352] [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: 08/06/2020] [Revised: 11/17/2020] [Accepted: 12/21/2020] [Indexed: 12/21/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE While bioavailability of oral voriconazole is known to be >90%, several reports have observed much lower oral bioavailability. The aim of the present study was to assess the oral bioavailability of voriconazole in clinical use by evaluating the change in serum voriconazole concentration in patients who received intravenous-to-oral switch therapy with the same dose of voriconazole. METHODS A single-centre, retrospective cohort study was conducted at the 614-bed Gifu University Hospital in Japan. Patients who received intravenous-to-oral switch therapy with the same dose of voriconazole between 1 January 2011 and 31 December 2018 were enrolled in the present study. We evaluated changes in serum voriconazole concentration before and after switch therapy. RESULTS Voriconazole trough concentrations significantly decreased following oral compared to intravenous treatment (2.5 ± 1.5 µg/mL vs 3.3 ± 2.0 µg/mL, p = 0.021). The median change rate of serum concentration by switching the route of administration was 82.7%, with wide inter-individual variability (range 27.2-333.3%). Further, concomitant glucocorticoid administration was a significant protective factor for reducing serum concentration (OR 0.16, 95% CI 0.03-0.79, p = 0.025). WHAT IS NEW AND CONCLUSION Switching from intravenous to oral treatment resulted in a significant decline in voriconazole trough concentrations with wide inter-individual variability. Therefore, measurement of serum concentration for dose adjustment should be performed after switching to the oral form.
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Affiliation(s)
- Saki Harada
- Department of Pharmacy, Gifu University Hospital, 1-1 Yanagido, Gifu, 501-1104, Japan
| | - Takashi Niwa
- Department of Pharmacy, Gifu University Hospital, 1-1 Yanagido, Gifu, 501-1104, Japan
| | - Yusuke Hoshino
- Department of Pharmacy, Gifu University Hospital, 1-1 Yanagido, Gifu, 501-1104, Japan
| | - Ayasa Fujibayashi
- Department of Pharmacy, Gifu University Hospital, 1-1 Yanagido, Gifu, 501-1104, Japan
| | - Akio Suzuki
- Department of Pharmacy, Gifu University Hospital, 1-1 Yanagido, Gifu, 501-1104, Japan
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Takahashi T, Smith AR, Jacobson PA, Fisher J, Rubin NT, Kirstein MN. Impact of Obesity on Voriconazole Pharmacokinetics among Pediatric Hematopoietic Cell Transplant Recipients. Antimicrob Agents Chemother 2020; 64:e00653-20. [PMID: 32988816 PMCID: PMC7674053 DOI: 10.1128/aac.00653-20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/18/2020] [Indexed: 12/12/2022] Open
Abstract
Voriconazole (VCZ) is an antifungal agent with wide inter- and intrapatient pharmacokinetic (PK) variability and narrow therapeutic index. Although obesity was associated with higher VCZ trough concentrations in adults, the impact of obesity had yet to be studied in children. We characterized the PK of VCZ in obese patients by accounting for age and CYP2C19 phenotype. We conducted intensive PK studies of VCZ and VCZ N-oxide metabolite in 44 hematopoietic stem cell transplantation (HSCT) recipients aged 2 to 21 years who received prophylactic intravenous VCZ every 12 hours (q12h). Blood samples were collected at 5 and 30 minutes; at 1, 3, 6, and 9 hours after infusion completion; and immediately before the next infusion start. We estimated PK parameters with noncompartmental analysis and evaluated for an association with obesity by multiple linear regression analysis. The 44 participants included 9 (20%) with obesity. CYP2C19 metabolism phenotypes were identified as normal in 22 (50%), poor/intermediate in 13 (30%), and rapid/ultrarapid in 9 patients (21%). Obesity status significantly affects the VCZ minimum concentration of drug in serum (Cmin) (higher by 1.4 mg/liter; 95% confidence interval [CI], 0.0 to 2.8; P = 0.047) and VCZ metabolism ratio (VCZRATIO) (higher by 0.4; 95% CI, 0.0 to 0.7; P = 0.03), while no association was observed with VCZ area under the curve (AUC) (P = 0.09) after adjusting for clinical factors. A younger age and a CYP2C19 phenotype were associated with lower VCZ AUC. Obesity was associated with decreased metabolism of VCZ to its inactive N-oxide metabolite and, concurrently, increased VCZ Cmin, which is deemed clinically meaningful. Future research should aim to further characterize its effects and determine a proper dosing regimen for the obese.
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Affiliation(s)
- Takuto Takahashi
- Division of Hematology and Oncology, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Division of Blood and Marrow Transplant, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Angela R Smith
- Division of Blood and Marrow Transplant, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Pamala A Jacobson
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
| | - James Fisher
- Clinical Pharmacology Analytical Services, University of Minnesota, Minneapolis, Minnesota, USA
| | - Nathan T Rubin
- Masonic Cancer Center Biostat Core, University of Minnesota, Minneapolis, Minnesota, USA
| | - Mark N Kirstein
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
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Takahashi T, Smith AR, Jacobson PA, Fisher J, Rubin NT, Kirstein MN. Impact of Obesity on Voriconazole Pharmacokinetics among Pediatric Hematopoietic Cell Transplant Recipients. Antimicrob Agents Chemother 2020. [PMID: 32988816 DOI: 10.1128/aac.00611-20/suppl_file/aac.00611-20-s0001.pdf] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2023] Open
Abstract
Voriconazole (VCZ) is an antifungal agent with wide inter- and intrapatient pharmacokinetic (PK) variability and narrow therapeutic index. Although obesity was associated with higher VCZ trough concentrations in adults, the impact of obesity had yet to be studied in children. We characterized the PK of VCZ in obese patients by accounting for age and CYP2C19 phenotype. We conducted intensive PK studies of VCZ and VCZ N-oxide metabolite in 44 hematopoietic stem cell transplantation (HSCT) recipients aged 2 to 21 years who received prophylactic intravenous VCZ every 12 hours (q12h). Blood samples were collected at 5 and 30 minutes; at 1, 3, 6, and 9 hours after infusion completion; and immediately before the next infusion start. We estimated PK parameters with noncompartmental analysis and evaluated for an association with obesity by multiple linear regression analysis. The 44 participants included 9 (20%) with obesity. CYP2C19 metabolism phenotypes were identified as normal in 22 (50%), poor/intermediate in 13 (30%), and rapid/ultrarapid in 9 patients (21%). Obesity status significantly affects the VCZ minimum concentration of drug in serum (Cmin) (higher by 1.4 mg/liter; 95% confidence interval [CI], 0.0 to 2.8; P = 0.047) and VCZ metabolism ratio (VCZRATIO) (higher by 0.4; 95% CI, 0.0 to 0.7; P = 0.03), while no association was observed with VCZ area under the curve (AUC) (P = 0.09) after adjusting for clinical factors. A younger age and a CYP2C19 phenotype were associated with lower VCZ AUC. Obesity was associated with decreased metabolism of VCZ to its inactive N-oxide metabolite and, concurrently, increased VCZ Cmin, which is deemed clinically meaningful. Future research should aim to further characterize its effects and determine a proper dosing regimen for the obese.
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Affiliation(s)
- Takuto Takahashi
- Division of Hematology and Oncology, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Division of Blood and Marrow Transplant, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Angela R Smith
- Division of Blood and Marrow Transplant, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Pamala A Jacobson
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
| | - James Fisher
- Clinical Pharmacology Analytical Services, University of Minnesota, Minneapolis, Minnesota, USA
| | - Nathan T Rubin
- Masonic Cancer Center Biostat Core, University of Minnesota, Minneapolis, Minnesota, USA
| | - Mark N Kirstein
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
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Impact of Albumin and Omeprazole on Steady-State Population Pharmacokinetics of Voriconazole and Development of a Voriconazole Dosing Optimization Model in Thai Patients with Hematologic Diseases. Antibiotics (Basel) 2020; 9:antibiotics9090574. [PMID: 32899425 PMCID: PMC7557832 DOI: 10.3390/antibiotics9090574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/30/2020] [Accepted: 09/01/2020] [Indexed: 01/16/2023] Open
Abstract
This study aimed to identify factors that significantly influence the pharmacokinetics of voriconazole in Thai adults with hematologic diseases, and to determine optimal voriconazole dosing regimens. Blood samples were collected at steady state in 65 patients (237 concentrations) who were taking voriconazole to prevent or treat invasive aspergillosis. The data were analyzed using a nonlinear mixed-effects modeling approach. Monte Carlo simulation was applied to optimize dosage regimens. Data were fitted with the one-compartment model with first-order absorption and elimination. The apparent oral clearance (CL/F) was 3.43 L/h, the apparent volume of distribution (V/F) was 47.6 L, and the absorption rate constant (Ka) was fixed at 1.1 h−1. Albumin and omeprazole ≥ 40 mg/day were found to significantly influence CL/F. The simulation produced the following recommended maintenance doses of voriconazole: 50, 100, and 200 mg every 12 h for albumin levels of 1.5–3, 3.01–4, and 4.01–4.5 g/dL, respectively, in patients who receive omeprazole ≤ 20 mg/day. Patients who receive omeprazole ≥ 40 mg/day and who have serum albumin level 1.5–3 and 3.01–4.5 g/dL should receive voriconazole 50 and 100 mg, every 12 h, respectively. Albumin level and omeprazole dosage should be carefully considered when determining the appropriate dosage of voriconazole in Thai patients.
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Pharmacokinetic/Pharmacodynamic Analysis of Voriconazole Against Candida spp. and Aspergillus spp. in Allogeneic Stem Cell Transplant Recipients. Ther Drug Monit 2020; 41:740-747. [PMID: 31136417 DOI: 10.1097/ftd.0000000000000657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND To evaluate the adequacy of different dosing regimens of voriconazole for the prophylaxis of invasive candidiasis and aspergillosis in adult allogeneic stem cell transplant recipients by means of population pharmacokinetic (PK) modelling and simulation. METHODS Allogeneic stem cell transplant recipients receiving voriconazole were included in this observational study. A population PK model was developed. Three oral voriconazole-dosing regimens were simulated: 200, 300, and 400 mg twice daily. The pharmacodynamic target was defined as fAUC0-24/0.7. A probability of target attainment ≥90% was considered optimal. The cumulative fraction of response was defined as the fraction of patients achieving the pharmacodynamic target when a population of simulated patients is matched with a simulated population of different Candida spp. and Aspergillus spp. The percentage of patients with trough plasma concentrations at steady state (Ctrough) within the reference range (1-5.5 mg/L) was also calculated. RESULTS A 2-compartment PK model was developed using data from 40 patients, which contributed 237 voriconazole plasma samples, including trough and maximum concentrations. Voriconazole 200, 300, and 400 mg twice daily achieved probability of target attainment ≥90% for minimal inhibitory concentration values ≤0.25, ≤0.38, and ≤0.50 mg/L, respectively. The cumulative fraction of response for A. niger, A. versicolor, and A. flavus increased >10% when increasing voriconazole dose from 200 to 400 mg twice daily (from 72.5% to 89.5% for A. niger; from 77.7% to 88.7% for A. versicolor; and from 82.4% to 94.9% for A flavus). The percentage of patients with Ctrough within the reference range increased 15% when voriconazole dose was increased from 200 to 300 mg twice daily. CONCLUSIONS The PK simulations in this study suggest that transplant recipients on voriconazole prophylaxis against invasive candidiasis or aspergillosis are likely to achieve the target concentrations associated with the desired treatment outcomes if the maintenance dose is 200 mg twice daily. However, Aspergillus spp. with high minimal inhibitory concentrations could require higher maintenance doses.
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Kim HY, Märtson AG, Dreesen E, Spriet I, Wicha SG, McLachlan AJ, Alffenaar JW. Saliva for Precision Dosing of Antifungal Drugs: Saliva Population PK Model for Voriconazole Based on a Systematic Review. Front Pharmacol 2020; 11:894. [PMID: 32595511 PMCID: PMC7304296 DOI: 10.3389/fphar.2020.00894] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 06/01/2020] [Indexed: 12/16/2022] Open
Abstract
Precision dosing for many antifungal drugs is now recommended. Saliva sampling is considered as a non-invasive alternative to plasma sampling for therapeutic drug monitoring (TDM). However, there are currently no clinically validated saliva models available. The aim of this study is firstly, to conduct a systematic review to evaluate the evidence supporting saliva-based TDM for azoles, echinocandins, amphotericin B, and flucytosine. The second aim is to develop a saliva population pharmacokinetic (PK) model for eligible drugs, based on the evidence. Databases were searched up to July 2019 on PubMed® and Embase®, and 14 studies were included in the systematic review for fluconazole, voriconazole, itraconazole, and ketoconazole. No studies were identified for isavuconazole, posaconazole, flucytosine, amphotericin B, caspofungin, micafungin, or anidulafungin. Fluconazole and voriconazole demonstrated a good saliva penetration with an average S/P ratio of 1.21 (± 0.31) for fluconazole and 0.56 (± 0.18) for voriconazole, both with strong correlation (r = 0.89-0.98). Based on the evidence for TDM and available data, population PK analysis was performed on voriconazole using Nonlinear Mixed Effects Modeling (NONMEM 7.4). 137 voriconazole plasma and saliva concentrations from 11 patients (10 adults, 1 child) were obtained from the authors of the included study. Voriconazole pharmacokinetics was best described by one-compartment PK model with first-order absorption, parameterized by clearance of 4.56 L/h (36.9% CV), volume of distribution of 60.7 L, absorption rate constant of 0.858 (fixed), and bioavailability of 0.849. Kinetics of the voriconazole distribution from plasma to saliva was identical to the plasma kinetics, but the extent of distribution was lower, modeled by a scale factor of 0.5 (4% CV). A proportional error model best accounted for the residual variability. The visual and simulation-based model diagnostics confirmed a good predictive performance of the saliva model. The developed saliva model provides a promising framework to facilitate saliva-based precision dosing of voriconazole.
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Affiliation(s)
- Hannah Yejin Kim
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
- Department of Pharmacy, Westmead Hospital, Westmead, NSW, Australia
- Marie Bashir Institute of Infectious Diseases and Biosecurity, The University of Sydney, Camperdown, NSW, Australia
| | - Anne-Grete Märtson
- University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, Netherlands
| | - Erwin Dreesen
- Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Leuven, Belgium
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Leuven, Belgium
- Pharmacy Department, University Hospitals Leuven, Leuven, Belgium
| | - Sebastian G. Wicha
- Department of Clinical Pharmacy, Institute of Pharmacy, University of Hamburg, Hamburg, Germany
| | - Andrew J. McLachlan
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
| | - Jan-Willem Alffenaar
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
- Department of Pharmacy, Westmead Hospital, Westmead, NSW, Australia
- Marie Bashir Institute of Infectious Diseases and Biosecurity, The University of Sydney, Camperdown, NSW, Australia
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Luo X, Li T, Hu L, Liu S, Zhao H, Zhang J, Feng Y, Huang L. Differential effects of C-reactive protein levels on voriconazole metabolism at three age groups in allogeneic hematopoietic cell transplant recipients. J Chemother 2020; 33:95-105. [PMID: 32441568 DOI: 10.1080/1120009x.2020.1765604] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The aim of this study was to evaluate the impact of inflammation on voriconazole (VRCZ) metabolism at three age groups in the allogeneic hematopoietic cell transplant recipients of the Chinese population. The study was performed with collecting more than one VRCZ trough concentration and C-reactive protein (CRP) levels. Longitudinal analysis, correlation and comparative analysis were conducted to evaluate. A total of 104 patients with 386 VRCZ trough concentration and CRP level measured on the same day were collected. For children, CRP levels significantly associated with VRCZ pharmacokinetics in age 11-18 years but not in age 2-10 years. For adults, VRCZ concentrations were increased slightly by 0.006 mg/L when every 1 mg/L increased in CRP levels. Additionally, meropenem and inflammation might work together to cause a higher VRCZ concentration. Therefore, therapeutic drug monitoring of VRCZ should be warranted at age >10 years in allogeneic hematopoietic cell transplant recipients with elevated CRP level.
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Affiliation(s)
- Xingxian Luo
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Taifeng Li
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Lei Hu
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Silu Liu
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Haiyan Zhao
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Jiaqi Zhang
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Yufei Feng
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Lin Huang
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
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Ren QX, Li XG, Mu JS, Bi JF, Du CH, Wang YH, Zhu H, Lv P, Zhao QG. Population Pharmacokinetics of Voriconazole and Optimization of Dosage Regimens Based on Monte Carlo Simulation in Patients With Liver Cirrhosis. J Pharm Sci 2019; 108:3923-3931. [PMID: 31562869 DOI: 10.1016/j.xphs.2019.09.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/19/2019] [Accepted: 09/19/2019] [Indexed: 12/21/2022]
Abstract
Because voriconazole metabolism is highly influenced by liver function, the dose regimen of voriconazole should be carefully assessed in patients with liver cirrhosis. We aimed to identify significant factors associated with plasma concentrations. Blood samples were collected from patients with liver cirrhosis who received voriconazole, and voriconazole concentrations were determined. One-compartment model with first-order absorption and elimination appropriately characterized the in vivo process of voriconazole. The typical population value of voriconazole clearance (CL) was 1.45 L/h and the volume of distribution (V) was 132.12 L. The covariate analysis identified that CYP2C19 gene phenotype and Child-Pugh classification were strongly associated with CL and body weight had a significant influence on V. The results of the Monte Carlo simulation suggested that CYP2C19 gene phenotype was a critical factor for determining voriconazole dosage in patients with liver cirrhosis. The extensive metabolizer patients with Aspergillus fumigatus infections could be treated effectively with a recommended dose of 75 mg twice daily in mild to moderate liver cirrhosis and 100 mg once daily in moderate severe liver cirrhosis. However, the recommended dosage for Candida albicans infections patients was not achieved in present study.
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Affiliation(s)
- Qiu-Xia Ren
- Department of Pharmacy, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Xin-Gang Li
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jin-Song Mu
- Intensive Care Unit, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Jing-Feng Bi
- Research Center for Clinical and Translational Medicine, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Chun-Hui Du
- Department of Pharmacy, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Yan-Hong Wang
- Department of Pharmacy, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Hong Zhu
- Department of Pharmacy, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Peng Lv
- Department of Pharmacy, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Qing-Guo Zhao
- Department of Pharmacy, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China.
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Schulz J, Kluwe F, Mikus G, Michelet R, Kloft C. Novel insights into the complex pharmacokinetics of voriconazole: a review of its metabolism. Drug Metab Rev 2019; 51:247-265. [PMID: 31215810 DOI: 10.1080/03602532.2019.1632888] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Voriconazole, a second-generation triazole frequently used for the prophylaxis and treatment of invasive fungal infections, undergoes complex metabolism mainly involving various (polymorphic) cytochrome P450 enzymes in humans. Although high inter- and intraindividual variability in voriconazole pharmacokinetics have been observed and the therapeutic range for this compound is relatively narrow, the metabolism of voriconazole has not been fully elucidated yet. The available literature data investigating the multiple different pathways and metabolites are extremely unbalanced and thus the absolute or relative contribution of the different pathways and enzymes involved in the metabolism of voriconazole remains uncertain. Furthermore, other factors such as nonlinear pharmacokinetics caused by auto-inhibition or -induction and polymorphisms of the metabolizing enzymes hinder safe and effective voriconazole dosing in clinical practice and have not yet been studied sufficiently. This review aimed at amalgamating the available literature on the pharmacokinetics of voriconazole in vitro and in vivo, with a special focus on metabolism in adults and children, in order to congregate an overall landscape of the current body of knowledge and identify knowledge gaps, opening the way towards further research in order to foster the understanding, towards better therapeutic dosing decisions.
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Affiliation(s)
- Josefine Schulz
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin , Berlin , Germany
| | - Franziska Kluwe
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin , Berlin , Germany.,Graduate Research Training Program PharMetrX , Berlin/Potsdam , Germany
| | - Gerd Mikus
- Department of Clinical Pharmacology and Pharmacoepidemiology, University Hospital Heidelberg , Heidelberg , Germany
| | - Robin Michelet
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin , Berlin , Germany
| | - Charlotte Kloft
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universitaet Berlin , Berlin , Germany
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