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Li Y, Zhang Y, Zhao J, Bian J, Zhao Y, Hao X, Liu B, Hu L, Liu F, Yang C, Feng Y, Huang L. Combined impact of hypoalbuminemia and pharmacogenomic variants on voriconazole trough concentration: data from a real-life clinical setting in the Chinese population. J Chemother 2024; 36:179-189. [PMID: 37599449 DOI: 10.1080/1120009x.2023.2247208] [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: 05/16/2023] [Revised: 07/01/2023] [Accepted: 08/08/2023] [Indexed: 08/22/2023]
Abstract
Voriconazole (VRC) displays highly variable pharmacokinetics impacting treatment efficacy and safety. To provide evidence for optimizing VRC therapy regimens, the authors set out to determine the factors impacting VRC steady-state trough concentration (Cmin) in patients with various albumin (Alb) level. A total of 275 blood samples of 120 patients and their clinical characteristics and genotypes of CYP2C19, CYP3A4, CYP3A5, CYP2C9, FMO3, ABCB1, POR, NR1I2 and NR1I3 were included in this study. Results of multivariate linear regression analysis demonstrated that C-reactive protein (CRP) and total bilirubin (T-Bil) were predictors of the VRC Cmin adjusted for dose in patients with hypoalbuminemia (Alb < 35 g/L) (R2 = 0.16, P < 0.001). Additionally, in patients with normal albumin level (Alb ≥ 35 g/L), it resulted in a significant model containing factors of the poor metabolizer (PM) CYP2C19 genotype and CRP level (R2 = 0.26, P < 0.001). Therefore, CRP and T-Bil levels ought to receive greater consideration than genetic factors in patients with hypoalbuminemia.
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Affiliation(s)
- Yuanyuan Li
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ying Zhang
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jinxia Zhao
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Jialu Bian
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yinyu Zhao
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xu Hao
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Boyu Liu
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Lei Hu
- Department of Pharmacy, Peking University People's Hospital, Beijing, China
| | - Fang Liu
- Department of Mathematics and Physics, School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Changqing Yang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 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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Liu S, Yao X, Tao J, Zhao S, Sun S, Wang S, Tian X. Impact of CYP2C19, CYP2C9, CYP3A4, and FMO3 Genetic Polymorphisms and Sex on the Pharmacokinetics of Voriconazole after Single and Multiple Doses in Healthy Chinese Subjects. J Clin Pharmacol 2024. [PMID: 38654529 DOI: 10.1002/jcph.2440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/20/2024] [Indexed: 04/26/2024]
Abstract
Voriconazole is the first-line treatment for invasive aspergillosis. Its pharmacokinetics exhibit considerable inter- and intra-individual variability. The purpose of this study was to investigate the effects of CYP2C19, CYP2C9, CYP3A4, and FMO3 genetic polymorphisms and sex on the pharmacokinetics of voriconazole in healthy Chinese adults receiving single-dose and multiple-dose voriconazole, to provide a reference for its clinical individualized treatment. A total of 123 healthy adults were enrolled in the study, with 108 individuals and 15 individuals in the single-dose and multiple-dose doses, respectively. Plasma voriconazole concentrations were measured using a validated LC-MS/MS method, and pharmacokinetics parameters were calculated using the non-compartmental method with WinNonlin 8.2. CYP2C19, CYP2C9, CYP3A4, and FMO3 single-nucleotide polymorphisms were sequenced using the Illumina Hiseq X-Ten platform. The results suggested that CYP2C19 genetic polymorphisms significantly affected the pharmacokinetics of voriconazole at single doses of 4, 6, and 8 mg/kg and multiple doses of voriconazole. CYP3A4 rs2242480 had a significant effect on AUC0-∞ (area under the plasma concentration-time curve from time 0 to infinity) and MRT (mean residence time) of voriconazole at a single dose of 4 mg/kg in CYP2C19 extensive metabolizer. Regardless of the CYP2C19 genotype, CYP2C9 rs1057910 and FMO3 rs2266780 were not associated with the pharmacokinetics of voriconazole at three single-dose levels or multiple doses. No significant differences in most voriconazole pharmacokinetics parameters were noted between male and female participants after single and multiple dosing. For patients receiving voriconazole treatment, CYP2C19 genetic polymorphisms should be genotyped for its precision administration. In contrast, based on our study of healthy Chinese adults, it seems unnecessary to consider the effects of CYP2C9, CYP3A4, and FMO3 genetic polymorphisms on voriconazole pharmacokinetics.
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Affiliation(s)
- Shuaibing Liu
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Xia Yao
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Jun Tao
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Shiyu Zhao
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Suke Sun
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Suyun Wang
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Xin Tian
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
- Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, Henan Province, China
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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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Li G, Li Q, Zhang C, Yu Q, Li Q, Zhou X, Yang R, Yang X, Liu H, Yang Y. The impact of gene polymorphism and hepatic insufficiency on voriconazole dose adjustment in invasive fungal infection individuals. Front Genet 2023; 14:1242711. [PMID: 37693307 PMCID: PMC10484623 DOI: 10.3389/fgene.2023.1242711] [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: 06/19/2023] [Accepted: 08/10/2023] [Indexed: 09/12/2023] Open
Abstract
Voriconazole (VRZ) is a broad-spectrum antifungal medication widely used to treat invasive fungal infections (IFI). The administration dosage and blood concentration of VRZ are influenced by various factors, posing challenges for standardization and individualization of dose adjustments. On the one hand, VRZ is primarily metabolized by the liver, predominantly mediated by the cytochrome P450 (CYP) 2C19 enzyme. The genetic polymorphism of CYP2C19 significantly impacts the blood concentration of VRZ, particularly the trough concentration (Ctrough), thereby influencing the drug's efficacy and potentially causing adverse drug reactions (ADRs). Recent research has demonstrated that pharmacogenomics-based VRZ dose adjustments offer more accurate and individualized treatment strategies for individuals with hepatic insufficiency, with the possibility to enhance therapeutic outcomes and reduce ADRs. On the other hand, the security, pharmacokinetics, and dosing of VRZ in individuals with hepatic insufficiency remain unclear, making it challenging to attain optimal Ctrough in individuals with both hepatic insufficiency and IFI, resulting in suboptimal drug efficacy and severe ADRs. Therefore, when using VRZ to treat IFI, drug dosage adjustment based on individuals' genotypes and hepatic function is necessary. This review summarizes the research progress on the impact of genetic polymorphisms and hepatic insufficiency on VRZ dosage in IFI individuals, compares current international guidelines, elucidates the current application status of VRZ in individuals with hepatic insufficiency, and discusses the influence of CYP2C19, CYP3A4, CYP2C9, and ABCB1 genetic polymorphisms on VRZ dose adjustments and Ctrough at the pharmacogenomic level. Additionally, a comprehensive summary and analysis of existing studies' recommendations on VRZ dose adjustments based on CYP2C19 genetic polymorphisms and hepatic insufficiency are provided, offering a more comprehensive reference for dose selection and adjustments of VRZ in this patient population.
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Affiliation(s)
- Guolin Li
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Qinhui Li
- Department of Medical, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Changji Zhang
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Qin Yu
- College of Pharmacy, Southwest Medical University, Luzhou, China
| | - Qi Li
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoshi Zhou
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Rou Yang
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xuerong Yang
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Hailin Liu
- Department of Pharmacy, The People’s Hospital of Chongqing Liangjiang New Area, Chongqing, China
| | - Yong Yang
- Department of Pharmacy, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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Zhou L, Li M, Li H, Guo Z, Gao Y, Zhang H, Qin F, Sang Z, Xing Q, Cheng L, Cao W. Establishment of a mathematical prediction model for voriconazole stable maintenance dose: a prospective study. Front Cell Infect Microbiol 2023; 13:1157944. [PMID: 37565064 PMCID: PMC10410275 DOI: 10.3389/fcimb.2023.1157944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/11/2023] [Indexed: 08/12/2023] Open
Abstract
Background In patients with invasive fungal infection (IFI), the steady-state serum trough concentration (C min) of voriconazole (VCZ) is highly variable and can lead to treatment failure (C min < 0.5 mg/L) and toxicity (C min ≥ 5.0 mg/L). However, It remains challenging to determine the ideal maintenance dose to achieve the desired C min level quickly. Aims This randomized, prospective observational single-center study aimed to identify factors affecting VCZ-C min and maintenance dose and create an algorithmic model to predict the necessary maintenance dose. MeThe study enrolled 306 adult IFI patients, split into two groups: non-gene-directed (A) (where CYP2C19 phenotype is not involved in determining VCZ dose) and gene-directed (B) (where CYP2C19 phenotype is involved in determining VCZ dose). Results Results indicated that CYP2C19 genetic polymorphisms might significantly impact VCZ loading and maintenance dose selection. CYP2C19 phenotype, C-reaction protein (CRP), and average daily dose/body weight were significant influencers on VCZ-C min, while CYP2C19 phenotype, CRP, and body weight significantly impacted VCZ maintenance dose. A feasible predictive formula for VCZ stable maintenance dose was derived from the regression equation as a maintenance dose (mg) =282.774-0.735×age (year)+2.946×body weight(Kg)-19.402×CYP2C19 phenotype (UM/RM/NM:0, IM:1, PM:2)-0.316×CRP (mg/L) (p < 0.001). Discussion DiThis formula may serve as a valuable supplement to the Clinical Pharmacogenetics Implementation Consortium (CPIC®) guideline for CYP2C19 and VCZ therapy, especially for IFI patients with highly variable inflammatory cytokines during VCZ therapy.
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Affiliation(s)
- Lijuan Zhou
- Translational Medicine Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Min Li
- Translational Medicine Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Huihong Li
- Translational Medicine Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Zhiqiang Guo
- Department of Hematology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Yanqiu Gao
- Department of Respiratory Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Hua Zhang
- Department of Respiratory Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Fuli Qin
- Department of Hematology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Zhihui Sang
- Translational Medicine Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
- College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan, China
| | - Qinghe Xing
- Institutes of Biomedical Sciences and Children’s Hospital, Fudan University, Shanghai, China
| | - Long Cheng
- College of Nursing, Chifeng University, Chifeng, Inner Mongolia, China
| | - Wei Cao
- Translational Medicine Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
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Factors Influencing Blood Concentration of Voriconazole and Therapeutic Drug Monitoring in Patients with Child–Pugh Class C Cirrhosis. J Clin Pharm Ther 2023. [DOI: 10.1155/2023/4240869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
What Is Known and Objective. CYP2C19 is an important influencing factor for voriconazole trough plasma concentration (Cmin); however, it is not verified in Child–Pugh C (CP-C) cirrhosis patients, and no voriconazole dosage regimen is recommended for these patients in the package insert. This retrospective study identified CYP2C19 and other factors influencing voriconazole Cmin for CP-C cirrhosis, and obtained an appropriate method of application of voriconazole for them. Methods. A total of 66 patients with CP-C cirrhosis who accepted voriconazole therapy were involved. The voriconazole Cmin, clinical characteristics, CYP2C19 genotype, and adverse effects (AEs) were recorded and analyzed. Results. Unlike other research studies, voriconazole Cmin was not different among normal metabolizers (NMs), intermediate metabolizers (IMs), and poor metabolizers (PMs) of the CYP2C19 enzyme in CP-C cirrhosis (
> 0.05). The maintenance dose regimen for voriconazole was the only independent influencing factor for Cmin (
= 0.045; OR = 3.753; 95% CI, 1.029–13.694). At about 1/3 of the recommended maintenance dose, only 16.7% (8/48) had Cmin >5.5 μg/mL, 4.5% (3/48) had Cmin <1 μg/mL, and only one AE happened. There were four voriconazole-related AEs that happened in this study, and three AEs occurred (3/4, 75%) when the maintenance dose was not adjusted with therapeutic drug monitoring (TDM). What Is New and Conclusion. Voriconazole Cmin did not significantly vary according to CYP2C19 enzyme metabolization status (being an NM, IM, or PM) in CP-C cirrhosis. Reducing the maintenance dose of voriconazole to approximately 1/3 the standard maintenance dose and administering in combination with TDM in patients with CP-C cirrhosis are recommended.
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Cheng L, Liang Z, Liu F, Lin L, Zhang J, Xie L, Yu M, Sun F. Factors influencing plasma concentration of voriconazole and voriconazole- N-oxide in younger adult and elderly patients. Front Pharmacol 2023; 14:1126580. [PMID: 36860301 PMCID: PMC9969092 DOI: 10.3389/fphar.2023.1126580] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 02/03/2023] [Indexed: 02/15/2023] Open
Abstract
Background: Voriconazole (VCZ) metabolism is influenced by many factors. Identifying independent influencing factors helps optimize VCZ dosing regimens and maintain its trough concentration (C0) in the therapeutic window. Methods: We conducted a prospective study investigating independent factors influencing VCZ C0 and the VCZ C0 to VCZ N-oxide concentration ratio (C0/CN) in younger adults and elderly patients. A stepwise multivariate linear regression model, including the IL-6 inflammatory marker, was used. The receiver operating characteristic (ROC) curve analysis was used to evaluate the predictive effect of the indicator. Results: A total of 463 VCZ C0 were analyzed from 304 patients. In younger adult patients, the independent factors that influenced VCZ C0 were the levels of total bile acid (TBA) and glutamic-pyruvic transaminase (ALT) and the use of proton-pump inhibitors. The independent factors influencing VCZ C0/CN were IL-6, age, direct bilirubin, and TBA. The TBA level was positively associated with VCZ C0 (ρ = 0.176, p = 0.019). VCZ C0 increased significantly when the TBA levels were higher than 10 μmol/L (p = 0.027). ROC curve analysis indicated that when the TBA level ≥4.05 μmol/L, the incidence of a VCZ C0 greater than 5 μg/ml (95% CI = 0.54-0.74) (p = 0.007) increased. In elderly patients, the influencing factors of VCZ C0 were DBIL, albumin, and estimated glomerular filtration rate (eGFR). The independent factors that affected VCZ C0/CN were eGFR, ALT, γ-glutamyl transferase, TBA, and platelet count. TBA levels showed a positive association with VCZ C0 (ρ = 0.204, p = 0.006) and C0/CN (ρ = 0.342, p < 0.001). VCZ C0/CN increased significantly when TBA levels were greater than 10 μmol/L (p = 0.025). ROC curve analysis indicated that when the TBA level ≥14.55 μmol/L, the incidence of a VCZ C0 greater than 5 μg/ml (95% CI = 0.52-0.71) (p = 0.048) increased. Conclusion: TBA level may serve as a novel marker for VCZ metabolism. eGFR and platelet count should also be considered when using VCZ, especially in elderly patients.
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Affiliation(s)
| | | | - Fang Liu
- Department of Pharmacy, The First Affiliated Hospital of Army Medical University, Third Military Medical University, Chongqing, China
| | - Ling Lin
- Department of Pharmacy, The First Affiliated Hospital of Army Medical University, Third Military Medical University, Chongqing, China
| | - Jiao Zhang
- Department of Pharmacy, The First Affiliated Hospital of Army Medical University, Third Military Medical University, Chongqing, China
| | - Linli Xie
- Department of Pharmacy, The First Affiliated Hospital of Army Medical University, Third Military Medical University, Chongqing, China
| | - Mingjie Yu
- *Correspondence: Mingjie Yu, ; Fengjun Sun,
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Jiang Z, Wu Z, Liu R, Du Q, Fu X, Li M, Kuang Y, Lin S, Wu J, Xie W, Shi G, Peng Y, Zheng F. Effect of polymorphisms in drug metabolism and transportation on plasma concentration of atorvastatin and its metabolites in patients with chronic kidney disease. Front Pharmacol 2023; 14:1102810. [PMID: 36923356 PMCID: PMC10010391 DOI: 10.3389/fphar.2023.1102810] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 02/15/2023] [Indexed: 03/02/2023] Open
Abstract
Dyslipidemia due to renal insufficiency is a common complication in patients with chronic kidney diseases (CKD), and a major risk factor for the development of cardiovascular events. Atorvastatin (AT) is mainly used in the treatment of dyslipidemia in patients with CKD. However, response to the atorvastatin varies inter-individually in clinical applications. We examined the association between polymorphisms in genes involved in drug metabolism and transport, and plasma concentrations of atorvastatin and its metabolites (2-hydroxy atorvastatin (2-AT), 2-hydroxy atorvastatin lactone (2-ATL), 4-hydroxy atorvastatin (4-AT), 4-hydroxy atorvastatin lactone (4-ATL), atorvastatin lactone (ATL)) in kidney diseases patients. Genotypes were determined using TaqMan real time PCR in 212 CKD patients, treated with 20 mg of atorvastatin daily for 6 weeks. The steady state plasma concentrations of atorvastatin and its metabolites were quantified using ultraperformance liquid chromatography in combination with triple quadrupole mass spectrometry (UPLC-MS/MS). Univariate and multivariate analyses showed the variant in ABCC4 (rs3742106) was associated with decreased concentrations of AT and its metabolites (2-AT+2-ATL: β = -0.162, p = 0.028 in the dominant model; AT+2-AT+4-AT: β = -0.212, p = 0.028 in the genotype model), while patients carrying the variant allele ABCC4-rs868853 (β = 0.177, p = 0.011) or NR1I2-rs6785049 (β = 0.123, p = 0.044) had higher concentrations of 2-AT+2-ATL in plasma compared with homozygous wildtype carriers. Luciferase activity was enhanced in HepG2 cells harboring a construct expressing the rs3742106-T allele or the rs868853-G allele (p < 0.05 for each) compared with a construct expressing the rs3742106G or the rs868853-A allele. These findings suggest that two functional polymorphisms in the ABCC4 gene may affect transcriptional activity, thereby directly or indirectly affecting release of AT and its metabolites from hepatocytes into the circulation.
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Affiliation(s)
- Zebin Jiang
- Clinical Pharmacology Laboratory, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Zemin Wu
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Ruixue Liu
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Qin Du
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Xian Fu
- Clinical Pharmacology Laboratory, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Min Li
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Yongjun Kuang
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Shen Lin
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Jiaxuan Wu
- Department of Anesthesiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Weiji Xie
- Department of Nephrology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Ganggang Shi
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Yanqiang Peng
- Department of Nephrology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
- *Correspondence: Fuchun Zheng, ; Yanqiang Peng,
| | - Fuchun Zheng
- Clinical Pharmacology Laboratory, First Affiliated Hospital of Shantou University Medical College, Shantou, China
- Department of Pharmacology, Shantou University Medical College, Shantou, China
- *Correspondence: Fuchun Zheng, ; Yanqiang Peng,
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Zhai Q, van der Lee M, van Gelder T, Swen JJ. Why We Need to Take a Closer Look at Genetic Contributions to CYP3A Activity. Front Pharmacol 2022; 13:912618. [PMID: 35784699 PMCID: PMC9243486 DOI: 10.3389/fphar.2022.912618] [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: 04/05/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Cytochrome P450 3A (CYP3A) subfamily enzymes are involved in the metabolism of 40% of drugs in clinical use. Twin studies have indicated that 66% of the variability in CYP3A4 activity is hereditary. Yet, the complexity of the CYP3A locus and the lack of distinct drug metabolizer phenotypes has limited the identification and clinical application of CYP3A genetic variants compared to other Cytochrome P450 enzymes. In recent years evidence has emerged indicating that a substantial part of the missing heritability is caused by low frequency genetic variation. In this review, we outline the current pharmacogenomics knowledge of CYP3A activity and discuss potential future directions to improve our genetic knowledge and ability to explain CYP3A variability.
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10
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Aiuchi N, Nakagawa J, Sakuraba H, Takahata T, Kamata K, Saito N, Ueno K, Ishiyama M, Yamagata K, Kayaba H, Niioka T. Impact of polymorphisms of pharmacokinetics-related genes and the inflammatory response on the metabolism of voriconazole. Pharmacol Res Perspect 2022; 10:e00935. [PMID: 35199485 PMCID: PMC8866912 DOI: 10.1002/prp2.935] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 01/17/2022] [Accepted: 01/24/2022] [Indexed: 12/13/2022] Open
Abstract
The effects of inflammatory responses and polymorphisms of the genes encoding cytochrome P450 (CYP) (CYP2C19 and CYP3A5), flavin-containing monooxygenase 3 (FMO3), pregnane X receptor (NR1I2), constitutive androstane receptor (NR1I3), and CYP oxidoreductase (POR) on the ratio of voriconazole (VRCZ) N-oxide to VRCZ (VNO/VRCZ) and steady-state trough concentrations (C0h ) of VRCZ were investigated. A total of 56 blood samples were collected from 36 Japanese patients. Results of multiple linear regression analyses demonstrated that the presence of the extensive metabolizer CYP2C19 genotype, the dose per administration, and the presence of the NR1I2 rs3814057 C/C genotype were independent factors influencing the VNO/VRCZ ratio in patients with CRP levels of less than 40 mg/L (standardized regression coefficients (SRC) = 0.448, -0.301, and 0.390, respectively; all p < .05). With regard to the concentration of VRCZ itself, in addition to the above factors, the presence of the NR1I2 rs7643645 G/G and rs3814055 T/T genotypes were found to be independent factors influencing the VRCZ C0h in these patients (SRC = -0.430, 0.424, -0.326, 0.406 and -0.455, respectively; all p < .05). On the contrary, in patients with CRP levels of at least 40 mg/L, no independent factors were found to affect VNO/VRCZ and VRCZ C0h . Inflammatory responses, and CYP2C19 and NR1I2 polymorphisms may be useful information for the individualization of VRCZ dosages.
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Affiliation(s)
- Naoya Aiuchi
- Department of Pharmacy, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Junichi Nakagawa
- Department of Pharmacy, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Takenori Takahata
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Kosuke Kamata
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Norihiro Saito
- Department of Clinical Laboratory Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Kayo Ueno
- Department of Pharmacy, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Masahiro Ishiyama
- Department of Clinical Laboratory, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Kazufumi Yamagata
- Department of Bioscience and Laboratory Medicine, Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - Hiroyuki Kayaba
- Department of Clinical Laboratory Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Takenori Niioka
- Department of Pharmacy, Hirosaki University Hospital, Hirosaki, Aomori, Japan.,Department of Pharmaceutical Science, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
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11
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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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12
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Huang F, Zhou C, Zhang XY, Shen MY, Zhang H, Wang Y, Sun L. Impact of CYP2C19 genotype on voriconazole exposure and effect of voriconazole on the activity of CYP3A in patients with haematological malignancies. Xenobiotica 2021; 51:1199-1206. [PMID: 34402388 DOI: 10.1080/00498254.2021.1969481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Voriconazole (VRC) is a first-line drug for the treatment of invasive fungal infections (IFIs) and an inhibitor of CYP3A activity. The aims of this study are to investigate the influence of related factors on the plasma concentration of voriconazole and the effect of voriconazole on the activity of CYP3A in patients with haematological malignancies.A total of 89 patients received an initial dose of 6 mg/kg followed by 4 mg/kg every 12 h were included in the study. Blood samples were collected before and 2 h after administration for subsequent testing and for the extraction of DNA samples. Voriconazole and voriconazole N-oxide in the plasma were detected by LC-MS/MS. The effect of voriconazole on CYP3A activity was evaluated by the ratio of the endogenous biomarkers 6β-hydroxycortisol and cortisol.During the study period, the overall incidence of adverse reactions was 33.6% (with no deaths). The metabolite type of CYP2C19 and combined use of CYP2C19 enzyme inhibitors both had a significant impact on voriconazole exposure. Voriconazole has a long-lasting and potent inhibitory effect on CYP3A activity. The exposure of CYP3A substrate in combination with metabolic enzyme inhibitors voriconazole could increase. Therefore, the combination uses with voriconazole need to be considered carefully and assessed adequately.
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Affiliation(s)
- Fengru Huang
- Research Division of Clinical Pharmacology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
| | - Chen Zhou
- Research Division of Clinical Pharmacology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
| | - Xiao-Yan Zhang
- Department of Hematology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
| | - Miss Ye Shen
- Research Division of Clinical Pharmacology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
| | - Hongwen Zhang
- Research Division of Clinical Pharmacology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
| | - Yongqing Wang
- Research Division of Clinical Pharmacology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
| | - Luning Sun
- Research Division of Clinical Pharmacology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
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13
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Skandalaki A, Sarantis P, Theocharis S. Pregnane X Receptor (PXR) Polymorphisms and Cancer Treatment. Biomolecules 2021; 11:biom11081142. [PMID: 34439808 PMCID: PMC8394562 DOI: 10.3390/biom11081142] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 12/20/2022] Open
Abstract
Pregnane X Receptor (PXR) belongs to the nuclear receptors’ superfamily and mainly functions as a xenobiotic sensor activated by a variety of ligands. PXR is widely expressed in normal and malignant tissues. Drug metabolizing enzymes and transporters are also under PXR’s regulation. Antineoplastic agents are of particular interest since cancer patients are characterized by significant intra-variability to treatment response and severe toxicities. Various PXR polymorphisms may alter the function of the protein and are linked with significant effects on the pharmacokinetics of chemotherapeutic agents and clinical outcome variability. The purpose of this review is to summarize the roles of PXR polymorphisms in the metabolism and pharmacokinetics of chemotherapeutic drugs. It is also expected that this review will highlight the importance of PXR polymorphisms in selection of chemotherapy, prediction of adverse effects and personalized medicine.
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14
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Jia SJ, Gao KQ, Huang PH, Guo R, Zuo XC, Xia Q, Hu SY, Yu Z, Xie YL. Interactive Effects of Glucocorticoids and Cytochrome P450 Polymorphisms on the Plasma Trough Concentrations of Voriconazole. Front Pharmacol 2021; 12:666296. [PMID: 34113252 PMCID: PMC8185288 DOI: 10.3389/fphar.2021.666296] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/06/2021] [Indexed: 01/21/2023] Open
Abstract
Aims: To explore the interactive influence of glucocorticoids and cytochrome P450 (CYP450) polymorphisms on voriconazole (VRC) plasma trough concentrations (Cmin) and provide a reliable basis for reasonable application of VRC. Methods: A total of 918 VRC Cmin from 231 patients was collected and quantified using high-performance liquid chromatography in this study. The genotypes of CYP2C19, CYP3A4, and CYP3A5 were detected by DNA sequencing assay. The effects of different genotypes and the coadministration of glucocorticoids on VRC Cmin were investigated. Furthermore, the interactive effects of glucocorticoids with CYP450s on VRC Cmin were also analyzed. Results: The median Cmin of oral administration was lower than that of intravenous administration (1.51 vs. 4.0 mg l−1). Coadministration of glucocorticoids (including dexamethasone, prednisone, prednisolone, and methylprednisolone) reduced the VRC Cmin/dose, respectively, among which dexamethasone make the median of the VRC Cmin/dose ratio lower. As a result, when VRC was coadministrated with glucocorticoids, the proportion of VRC Cmin/dose in the subtherapeutic window was increased. Different CYP450 genotypes have different effects on the Cmin/dose of VRC. Mutations of CYP2C19*2 and *3 increased Cmin/dose of VRC, while CYP2C19*17 and CYP3A4 rs4646437 polymorphisms decreased Cmin/dose of VRC. The mutation of CYP3A5 has no significant effect. Furthermore, CYP2C19*17 mutants could strengthen the effects of glucocorticoids and decrease VRC Cmin/dose to a larger extent. Conclusion: Our study revealed that glucocorticoids reduced the Cmin/dose levels of VRC and different SNPs of CYP450 have different effects on the Cmin/dose ratio of VRC. Glucocorticoids and CYP2C19*17 mutants had a synergistic effect on reducing VRC Cmin/dose. The present results suggested that when VRC is combined with glucocorticoids, we should pay more attention to the clinical efficacy of VRC, especially when CYP2C19*17 mutants exist.
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Affiliation(s)
- Su-Jie Jia
- Department of Pharmacy, The Third Xiangya Hospital of Central South University, Changsha, China.,Department of Pharmacy and Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ke-Qin Gao
- Department of Clinical Pharmacy, Weifang People's Hospital, Weifang, China
| | - Pan-Hao Huang
- Department of Pharmacy, The Third Xiangya Hospital of Central South University, Changsha, China.,Department of Pharmacy and Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ren Guo
- Department of Pharmacy, The Third Xiangya Hospital of Central South University, Changsha, China.,Department of Pharmacy and Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiao-Cong Zuo
- Department of Pharmacy, The Third Xiangya Hospital of Central South University, Changsha, China.,Department of Pharmacy and Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Qing Xia
- Zunyi Medical College, Zunyi, China
| | | | - Zhen Yu
- Department of Pharmacy, Kangya Hospital, Yiyang, China
| | - Yue-Liang Xie
- Department of Pharmacy, The Third Xiangya Hospital of Central South University, Changsha, China.,Department of Pharmacy and Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
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15
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Cryptococcal Immune Reconstitution Inflammatory Syndrome: From Blood and Cerebrospinal Fluid Biomarkers to Treatment Approaches. Life (Basel) 2021; 11:life11020095. [PMID: 33514007 PMCID: PMC7912256 DOI: 10.3390/life11020095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/20/2021] [Accepted: 01/23/2021] [Indexed: 12/31/2022] Open
Abstract
Immune reconstitution inflammatory syndrome (IRIS) presents as an exaggerated immune reaction that occurs during dysregulated immune restoration in immunocompromised patients in late-stage human immunodeficiency virus (HIV) infection who have commenced antiretroviral treatments (ART). Virtually any opportunistic pathogen can provoke this type of immune restoration disorder. In this review, we focus on recent developments in the identification of risk factors for Cryptococcal IRIS and on advancements in our understanding of C-IRIS immunopathogenesis. We overview new findings in blood and cerebrospinal fluid which can potentially be useful in the prediction and diagnosis of cryptococcal meningitis IRIS (CM-IRIS). We assess current therapeutic regimens and novel treatment approaches to combat CM-IRIS. We discuss the utility of biomarkers for clinical monitoring and adjusting treatment modalities in acquired immunodeficiency syndrome (AIDS) patients co-infected with Cryptococcus who have initiated ART.
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16
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Gautier-Veyret E, Thiebaut-Bertrand A, Roustit M, Bolcato L, Depeisses J, Schacherer M, Schummer G, Fonrose X, Stanke-Labesque F. Optimization of voriconazole therapy for treatment of invasive aspergillosis: Pharmacogenomics and inflammatory status need to be evaluated. Br J Clin Pharmacol 2020; 87:2534-2541. [PMID: 33217017 DOI: 10.1111/bcp.14661] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/04/2020] [Accepted: 11/11/2020] [Indexed: 12/13/2022] Open
Abstract
AIMS Cytochrome 2C19 genotype-directed dosing of voriconazole (VRC) reduces the incidence of insufficient VRC trough concentrations (Cmin ) but does not account for CYP3A polymorphisms, also involved in VRC metabolism. This prospective observational study aimed to evaluate the utility of a genetic score combining CYP2C19 and CYP3A genotypes to predict insufficient initial VRC Cmin (<1 mg/L). METHODS The genetic score was determined in hematological patients treated with VRC. The higher the genetic score, the faster the metabolism of the patient. The impact of the genetic score was evaluated considering initial VRC Cmin and all VRC Cmin (n = 159) determined during longitudinal therapeutic drug monitoring. RESULTS Forty-three patients were included, of whom 41 received VRC for curative indication. Thirty-six patients had a genetic score ≥2, of whom 11 had an initial insufficient VRC Cmin . A genetic score ≥2 had a positive predictive value of 0.31 for having an initial insufficient VRC Cmin and initial VRC Cmin was not associated with the genetic score. The lack of association between the genetic score and VRC Cmin may be related to the inflammatory status of the patients (C-reactive protein [CRP] levels: median [Q1-Q3]: 43.0 [11.0-110.0] mg/L), as multivariate analysis performed on all VRC Cmin identified CRP as an independent determinant of the VRC Cmin adjusted for dose (P < .0001). CONCLUSION The combined genetic score did not predict low VRC exposure in patients with inflammation, which is frequent in patients with invasive fungal infections. Strategies for the individualization of VRC dose should integrate the inflammatory status of patients in addition to pharmacogenetic variants.
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Affiliation(s)
- Elodie Gautier-Veyret
- Inserm, CHU Grenoble Alpes, HP2, Universitaire Grenoble Alpes, Grenoble, 38000, France
| | | | - Matthieu Roustit
- Inserm, CHU Grenoble Alpes, HP2, Universitaire Grenoble Alpes, Grenoble, 38000, France
| | - Léa Bolcato
- Laboratoire de Pharmacologie, Pharmacogénétique et Toxicologie, CHU Grenoble Alpes, France
| | | | | | - Gabriel Schummer
- Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, Grenoble, France
| | - Xavier Fonrose
- Laboratoire de Pharmacologie, Pharmacogénétique et Toxicologie, CHU Grenoble Alpes, France
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