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Cree ML, Abdul-Aziz MH, Schlapbach LJ, Roberts JA, Parker SL. The impact of extracorporeal support on antimicrobial pharmacokinetics in critically ill neonatal and paediatric patients: A systematic review. Int J Antimicrob Agents 2024; 64:107311. [PMID: 39197687 DOI: 10.1016/j.ijantimicag.2024.107311] [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: 02/05/2024] [Revised: 07/24/2024] [Accepted: 08/19/2024] [Indexed: 09/01/2024]
Abstract
OBJECTIVES Infections represent a major risk for critically ill neonatal and paediatric patients requiring extracorporeal life-saving support such as extracorporeal membrane oxygenation (ECMO) and/or continuous renal replacement therapies (CRRT). Patient outcomes rely on achieving target antimicrobial concentrations. In critically ill adults on extracorporeal support, suboptimal antimicrobial concentrations have been shown to be common. Our objective was to systematically review antimicrobial pharmacokinetic studies in critically ill term neonatal and paediatric patients receiving ECMO and/or CRRT and compare them to similar cohorts of patients not receiving ECMO or CRRT. METHODS Studies published between 1990 and 2022 were identified through systematic searches in PUBMED, Embase, Web of Science, Medline, Google Scholar and CINAHL. Studies were included which provided antimicrobial pharmacokinetic parameters (volume of distribution and clearance) in the neonatal and paediatric patients receiving ECMO and/or CRRT. Studies were excluded if no antimicrobial pharmacokinetic parameters were described or could be calculated. RESULTS Forty-four pharmacokinetic studies were identified describing 737 patients, with neonatal patients recruited in 70% of the ECMO studies and <1% of the CRRT studies. Of all the studies, 50% were case reports or case series. The pharmacokinetics were altered for gentamicin, daptomycin, ceftolozane, micafungin, voriconazole, cefepime, fluconazole, piperacillin, and vancomycin, although considerable patient variability was described. CONCLUSION Significant gaps remain in our understanding of the pharmacokinetic alterations in neonatal and paediatric patients receiving ECMO and CRRT support.
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Affiliation(s)
- Michele L Cree
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia; Pharmacy Department, Queensland Children's Hospital, Brisbane, Australia
| | - Mohd Hafiz Abdul-Aziz
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Luregn J Schlapbach
- Pediatric Intensive Care Unit, Queensland Children's Hospital, Brisbane, Australia; Centre for Children's Health Research, The University of Queensland, Brisbane Australia; Department of Intensive Care and Neonatology, and Children`s Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Jason A Roberts
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia; Department of Intensive Care Medicine, Royal Brisbane & Women's Hospital, Brisbane Australia; Faculty of Medicine, Centre for Translational Anti-infective Pharmacodynamics, The University of Queensland, Brisbane, Australia; Division of Anaesthesiology Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, Nîmes, France; Pharmacy Department, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Suzanne L Parker
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia.
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Wang Y, Ye Q, Li P, Huang L, Qi Z, Chen W, Zhan Q, Wang C. Renal Replacement Therapy as a New Indicator of Voriconazole Clearance in a Population Pharmacokinetic Analysis of Critically Ill Patients. Pharmaceuticals (Basel) 2024; 17:665. [PMID: 38931333 PMCID: PMC11206427 DOI: 10.3390/ph17060665] [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: 04/24/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 06/28/2024] Open
Abstract
AIMS The pharmacokinetic (PK) profiles of voriconazole in intensive care unit (ICU) patients differ from that in other patients. We aimed to develop a population pharmacokinetic (PopPK) model to evaluate the effects of using extracorporeal membrane oxygenation (ECMO) and continuous renal replacement therapy (CRRT) and those of various biological covariates on the voriconazole PK profile. METHODS Modeling analyses of the PK parameters were conducted using the nonlinear mixed-effects modeling method (NONMEM) with a two-compartment model. Monte Carlo simulations (MCSs) were performed to observe the probability of target attainment (PTA) when receiving CRRT or not under different dosage regimens, different stratifications of quick C-reactive protein (qCRP), and different minimum inhibitory concentration (MIC) ranges. RESULTS A total of 408 critically ill patients with 746 voriconazole concentration-time data points were included in this study. A two-compartment population PK model with qCRP, CRRT, creatinine clearance rate (CLCR), platelets (PLT), and prothrombin time (PT) as fixed effects was developed using the NONMEM. CONCLUSIONS We found that qCRP, CRRT, CLCR, PLT, and PT affected the voriconazole clearance. The most commonly used clinical regimen of 200 mg q12h was sufficient for the most common sensitive pathogens (MIC ≤ 0.25 mg/L), regardless of whether CRRT was performed and the level of qCRP. When the MIC was 0.5 mg/L, 200 mg q12h was insufficient only when the qCRP was <40 mg/L and CRRT was performed. When the MIC was ≥2 mg/L, a dose of 300 mg q12h could not achieve ≥ 90% PTA, necessitating the evaluation of a higher dose.
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Affiliation(s)
- Yuqiong Wang
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China; (Y.W.); (C.W.)
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (Q.Y.); (L.H.); (Z.Q.)
| | - Qinghua Ye
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (Q.Y.); (L.H.); (Z.Q.)
| | - Pengmei Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China;
| | - Linna Huang
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (Q.Y.); (L.H.); (Z.Q.)
| | - Zhijiang Qi
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (Q.Y.); (L.H.); (Z.Q.)
| | - Wenqian Chen
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China;
| | - Qingyuan Zhan
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China; (Y.W.); (C.W.)
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (Q.Y.); (L.H.); (Z.Q.)
| | - Chen Wang
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China; (Y.W.); (C.W.)
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (Q.Y.); (L.H.); (Z.Q.)
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Jendoubi A, Pressiat C, De Roux Q, Hulin A, Ghaleh B, Tissier R, Kohlhauer M, Mongardon N. The impact of extracorporeal membrane oxygenation on antifungal pharmacokinetics: A systematic review. Int J Antimicrob Agents 2024; 63:107078. [PMID: 38161046 DOI: 10.1016/j.ijantimicag.2023.107078] [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: 07/14/2023] [Revised: 11/09/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND AND OBJECTIVE The use of extracorporeal membrane oxygenation (ECMO) as a cardiocirculatory or respiratory support has tremendously increased in critically ill patients. In the setting of ECMO support, invasive fungal infections are a severe cause of morbidity and mortality. This vulnerable population is at risk of suboptimal antifungal exposure due to an increased volume of distribution (Vd), drug sequestration and decreased clearance. Here, we aimed to summarize ex-vivo and clinical studies on the potential impact of ECMO on the pharmacokinetics (PK) of antifungal agents and dosing requirements. METHODS A systematic search of the literature within electronic databases PubMed and EMBASE was conducted from database inception to 30 April 2023. Inclusion criteria were as follows: critically ill patients receiving ECMO regardless of age and reporting at least one PK parameter. RESULTS Thirty-six studies met inclusion criteria, including seven ex-vivo experiments and 29 clinical studies evaluating three classes of antifungals: polyenes, triazoles and echinocandins. Based on the available ex-vivo PK data, we found a significant sequestration of highly lipophilic and protein-bound antifungals within the ECMO circuit such as voriconazole, posaconazole and micafungin but the PK of several antifungals remains to be addressed such as amphotericin B, isavuconazole and anidulafungin. Most clinical studies have shown increased Vd of some antifungals like fluconazole and micafungin, particularly in the pediatric population. Conflicting data exist about caspofungin exposure. CONCLUSIONS The available literature on the antifungal PK changes in ECMO setting is scarce. Whenever possible, therapeutic drug monitoring is highly advised to personalize antifungal therapy.
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Affiliation(s)
- Ali Jendoubi
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France; Service d'Anesthésie-Réanimation Chirurgicale, DMU CARE, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Claire Pressiat
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France; Faculté de Santé, Université Paris Est Créteil, Créteil, France; Laboratoire de Pharmacologie, DMU Biologie-Pathologie, Assistance Publique des Hôpitaux de Paris (APHP), Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Quentin De Roux
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France; Service d'Anesthésie-Réanimation Chirurgicale, DMU CARE, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Anne Hulin
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France; Faculté de Santé, Université Paris Est Créteil, Créteil, France; Laboratoire de Pharmacologie, DMU Biologie-Pathologie, Assistance Publique des Hôpitaux de Paris (APHP), Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Bijan Ghaleh
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France; Faculté de Santé, Université Paris Est Créteil, Créteil, France; Laboratoire de Pharmacologie, DMU Biologie-Pathologie, Assistance Publique des Hôpitaux de Paris (APHP), Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Renaud Tissier
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France
| | - Matthias Kohlhauer
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France
| | - Nicolas Mongardon
- Inserm U955-IMRB, Équipe 03 "Pharmacologie et Technologies pour les Maladies Cardiovasculaires (PROTECT)", École Nationale Vétérinaire d'Alfort (EnVA), Université Paris Est Créteil (UPEC), Maisons-Alfort, France; Service d'Anesthésie-Réanimation Chirurgicale, DMU CARE, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Henri Mondor, Créteil, France; Faculté de Santé, Université Paris Est Créteil, Créteil, France.
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Sharad N, Singh G, Xess I, Agarwal R, Seth T, Reeta KH, Kothari S. Therapeutic Drug Monitoring of Voriconazole in Children with Hematologic Malignancy and Invasive Fungal Infections: An RCT from a Tertiary Care Centre in India. Cardiovasc Hematol Disord Drug Targets 2023; 23:285-292. [PMID: 38192215 DOI: 10.2174/011871529x245299231102055046] [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: 02/28/2023] [Revised: 09/01/2023] [Accepted: 09/18/2023] [Indexed: 01/10/2024]
Abstract
INTRODUCTION Voriconazole is a triazole anti-fungal with non-linear kinetics and a narrow therapeutic range. The objective of our study was to monitor the voriconazole serum levels in children with hematological malignancy and clinically suspected invasive fungal infections. METHODS The study was a prospective, randomized controlled trial conducted from June 2016 to December 2017. All children who had haematologic malignancies with clinically suspected invasive fungal infections and received voriconazole as the only anti-fungal were included in the study. The children were randomly allotted into two groups; one was the group that underwent TDM, and the other, TDM, was not done. Bioassay was the method employed for TDM. The trough levels were evaluated on a sample obtained on the fifth day of starting the drug. The institute's ethics committee approved the study. RESULT A total of 30 children were included in the study: 15 in the TDM group and 15 in the non-TDM group. The most common underlying malignancy was AML. Neutropenia due to chemotherapy sessions was these patients' most common risk factor. A favorable outcome was seen in 13/15 (86.7%) in the TDM group and 11/15 in the non-TDM group (73.3%). CONCLUSION Only five out of 15 (33.3%) children had voriconazole serum levels within the therapeutic range. Alterations in dose had to be done in the remaining to achieve the recommended serum levels. Thus, we recommend TDM for all children of hematologic malignancy receiving voriconazole for better management. Our findings also revealed that children with AML had lower than recommended levels of voriconazole on TDM evaluation, whereas those with ALL had normal to elevated levels of voriconazole.
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Affiliation(s)
- Neha Sharad
- Department of Microbiology, AIIMS, New Delhi, India
| | | | | | | | - Tulika Seth
- Department of Haematology, AIIMS, New Delhi, India
| | - K H Reeta
- Department of Pharmacology, AIIMS, New Delhi, India
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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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Mathieu A, Thiboutot Z, Ferreira V, Benoit P, Grandjean Lapierre S, HÉtu PO, Halwagi A. Voriconazole Sequestration During Extracorporeal Membrane Oxygenation for Invasive Lung Aspergillosis: A Case Report. ASAIO J 2022; 68:e56-e58. [PMID: 33788798 DOI: 10.1097/mat.0000000000001427] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The increasing use of extracorporeal membrane oxygenation (ECMO) in critical care introduces new challenges with medication dosing. Voriconazole, a commonly used antifungal and the first-choice agent for the treatment of invasive aspergillosis, is a poorly water-soluble and highly protein-bound drug. Significant sequestration in ECMO circuits can be expected; however, no specific dosing recommendations are available. We report on the therapeutic drug monitoring and clinical evolution of a patient treated with voriconazole for invasive pulmonary aspergillosis while receiving ECMO therapy. Voriconazole trough levels were persistently low (<1 µg/mL) after initiation of ECMO despite additional loading doses and dose increases. Voriconazole dose had to be increased to 6.5 mg/kg three times daily to obtain therapeutic trough levels. The inability to achieve therapeutic levels of voriconazole for a prolonged period (a minimum of 9 days) while undergoing ECMO therapy is believed to have been a significant contributing factor in the patient's fatal outcome. Therapeutic trough levels of voriconazole cannot be guaranteed with standard dosing in patients undergoing ECMO and much higher doses may be necessary. Empirical use of higher doses and/or combination therapy may be reasonable and frequent therapeutic drug monitoring is mandatory.
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Affiliation(s)
- Alexandre Mathieu
- From the Department of Pharmacy, Centre Hospitalier de l'Université de Montréal, 1051 Rue Sanguinet, Montréal, Québec, Canada
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Québec, Canada
| | - ZoÉ Thiboutot
- From the Department of Pharmacy, Centre Hospitalier de l'Université de Montréal, 1051 Rue Sanguinet, Montréal, Québec, Canada
- Innovation Hub Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Québec, Canada
| | - Victor Ferreira
- From the Department of Pharmacy, Centre Hospitalier de l'Université de Montréal, 1051 Rue Sanguinet, Montréal, Québec, Canada
| | - Patrick Benoit
- Microbiology, Infectious Diseases and Immunology Department, Université de Montréal, 2900 Boulevard Édouard Montpetit, Montréal, Québec, Canada
| | - Simon Grandjean Lapierre
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Québec, Canada
- Microbiology, Infectious Diseases and Immunology Department, Université de Montréal, 2900 Boulevard Édouard Montpetit, Montréal, Québec, Canada
| | - Pierre-Olivier HÉtu
- Department of Laboratory Medicine, Centre Hospitalier de l'Université de Montréal, 1000 rue Saint-Denis, Montréal, Québec, Canada
| | - Antoine Halwagi
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal, 1000 rue Saint-Denis, Montréal, Québec, Canada
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Dubinsky S, Watt K, Saleeb S, Ahmed B, Carter C, Yeung CH, Edginton A. Pharmacokinetics of Commonly Used Medications in Children Receiving Continuous Renal Replacement Therapy: A Systematic Review of Current Literature. Clin Pharmacokinet 2022; 61:189-229. [PMID: 34846703 PMCID: PMC8816883 DOI: 10.1007/s40262-021-01085-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND OBJECTIVE The use of continuous renal replacement therapy (CRRT) for renal support has increased substantially in critically ill children compared with intermittent modalities owing to its preferential effects on hemodynamic stability. With the expanding role of CRRT, the quantification of extracorporeal clearance and the effect on primary pharmacokinetic parameters is of the utmost importance. Within this review, we aimed to summarize the current state of the literature and compare published pharmacokinetic analyses of commonly used medications in children receiving CRRT to those who are not. METHODS A systematic search of the literature within electronic databases PubMed, EMBASE, Cochrane Library, and Web of Science was conducted. Published studies that were included contained relevant information on the use of commonly administered medications to children, from neonates to adolescents, receiving CRRT. Pharmacokinetic parameters that were analyzed included volume of distribution, total clearance, extracorporeal clearance, area under the curve, and elimination half-life. Information regarding CRRT circuit, flow rates, and membrane components was analyzed to investigate differences in pharmacokinetics between each modality. RESULTS Forty-five studies met the final inclusion criteria within this systematic review, totaling 833 pediatric patients, with 586 receiving CRRT. Antimicrobials were the most common pharmacological class represented within the literature, representing 81% (35/43) of studies analyzed. Children receiving CRRT largely had similar volume of distribution and total clearance to critically ill children not receiving CRRT, suggesting reno-protective dose adjustments may lead to subtherapeutic dosing regimens in these patients. Overall, there was a tendency for hydrophilic agents, with a low protein binding to undergo elevated total clearance in these children. However, results should be interpreted with caution because of the large variability amongst patient populations and heterogeneity with CRRT modalities, flow rates, and use of extracorporeal membrane oxygenation within studies. This review was able to identify that variation in solute removal, or CRRT modalities, properties (i.e., flow rates), and membrane composition, may have differing effects on the pharmacokinetics of commonly administered medications. CONCLUSIONS The current state of the literature regarding medications administered to children receiving CRRT largely focuses on antimicrobials. Significant gaps remain with other commonly used medications such as sedatives and analgesics. Overall reporting of patient clinical characteristics, CRRT settings, and circuit composition was poor, with only 10% of articles including all relevant information to assess the impact of CRRT on total clearance. Changes in pharmacokinetics because of CRRT often required higher than labeled doses, suggesting renally adjusted or reno-protective doses may lead to subtherapeutic dosing regimens. A thorough understanding of the interplay between patient, drug, and CRRT-circuit factors are required to ensure adequate delivery of dosing regimens to this vulnerable population.
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Affiliation(s)
- Samuel Dubinsky
- University of Waterloo, School of Pharmacy, Waterloo, Ontario, Canada
| | - Kevin Watt
- University of Waterloo, School of Pharmacy, Waterloo, Ontario, Canada;,Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | | | | | - Caitlin Carter
- University of Waterloo, School of Pharmacy, Waterloo, Ontario, Canada
| | - Cindy H.T. Yeung
- University of Waterloo, School of Pharmacy, Waterloo, Ontario, Canada
| | - Andrea Edginton
- University of Waterloo, School of Pharmacy, Waterloo, Ontario, Canada
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Van Daele R, Bekkers B, Lindfors M, Broman LM, Schauwvlieghe A, Rijnders B, Hunfeld NGM, Juffermans NP, Taccone FS, Coimbra Sousa CA, Jacquet LM, Laterre PF, Nulens E, Grootaert V, Lyster H, Reed A, Patel B, Meersseman P, Debaveye Y, Wauters J, Vandenbriele C, Spriet I. A Large Retrospective Assessment of Voriconazole Exposure in Patients Treated with Extracorporeal Membrane Oxygenation. Microorganisms 2021; 9:microorganisms9071543. [PMID: 34361978 PMCID: PMC8303158 DOI: 10.3390/microorganisms9071543] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/12/2021] [Accepted: 07/14/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Voriconazole is one of the first-line therapies for invasive pulmonary aspergillosis. Drug concentrations might be significantly influenced by the use of extracorporeal membrane oxygenation (ECMO). We aimed to assess the effect of ECMO on voriconazole exposure in a large patient population. METHODS Critically ill patients from eight centers in four countries treated with voriconazole during ECMO support were included in this retrospective study. Voriconazole concentrations were collected in a period on ECMO and before/after ECMO treatment. Multivariate analyses were performed to evaluate the effect of ECMO on voriconazole exposure and to assess the impact of possible saturation of the circuit's binding sites over time. RESULTS Sixty-nine patients and 337 samples (190 during and 147 before/after ECMO) were analyzed. Subtherapeutic concentrations (<2 mg/L) were observed in 56% of the samples during ECMO and 39% without ECMO (p = 0.80). The median trough concentration, for a similar daily dose, was 2.4 (1.2-4.7) mg/L under ECMO and 2.5 (1.4-3.9) mg/L without ECMO (p = 0.58). Extensive inter-and intrasubject variability were observed. Neither ECMO nor squared day of ECMO (saturation) were retained as significant covariates on voriconazole exposure. CONCLUSIONS No significant ECMO-effect was observed on voriconazole exposure. A large proportion of patients had voriconazole subtherapeutic concentrations.
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Affiliation(s)
- Ruth Van Daele
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium;
- Pharmacy Department, University Hospitals Leuven, 3000 Leuven, Belgium;
- Correspondence:
| | - Britt Bekkers
- Pharmacy Department, University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Mattias Lindfors
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, 17177 Stockholm, Sweden; (M.L.); (L.M.B.)
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Lars Mikael Broman
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, 17177 Stockholm, Sweden; (M.L.); (L.M.B.)
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Alexander Schauwvlieghe
- Department of Hematology, Ghent University Hospital, 9000 Ghent, Belgium;
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands;
| | - Bart Rijnders
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands;
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands
| | - Nicole G. M. Hunfeld
- Department of Intensive Care and Department of Hospital Pharmacy, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands;
| | - Nicole P. Juffermans
- Department of Intensive Care, Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands;
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium; (F.S.T.); (C.A.C.S.)
| | - Carlos Antônio Coimbra Sousa
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium; (F.S.T.); (C.A.C.S.)
| | - Luc-Marie Jacquet
- Cardiovascular Intensive Care, Cliniques Universitaires Saint-Luc, 1050 Brussels, Belgium;
| | - Pierre-François Laterre
- Department of Intensive Care, Cliniques Universitaires St-Luc, Université Catholique de Louvain, 1050 Brussels, Belgium;
| | - Eric Nulens
- Laboratory Medicine, Medical Microbiology, Algemeen Ziekenhuis Sint-Jan, Brugge-Oostende, 8000 Brugge, Belgium;
| | - Veerle Grootaert
- Pharmacy Department, Algemeen Ziekenhuis Sint-Jan Brugge-Oostende AV, 8000 Brugge, Belgium;
| | - Haifa Lyster
- Pharmacy Department, Royal Brompton & Harefield Hospitals, London SW3 6NP, UK;
- Cardiothoracic Transplant Unit, Royal Brompton & Harefield Hospitals, London SW3 6NP, UK;
| | - Anna Reed
- Cardiothoracic Transplant Unit, Royal Brompton & Harefield Hospitals, London SW3 6NP, UK;
- Imperial College London, London SW3 6NP, UK
| | - Brijesh Patel
- Division of Anaesthetics, Pain Medicine & Intensive Care, Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London SW3 6NP, UK;
- Department of Adult Intensive Care, The Royal Brompton and Harefield Hospitals, London SW3 6NP, UK;
| | - Philippe Meersseman
- Department of General Internal Medicine, Medical Intensive Care Unit, University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Yves Debaveye
- Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium;
- Intensive Care Unit, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Joost Wauters
- Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium;
- Medical Intensive Care Unit, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Christophe Vandenbriele
- Department of Adult Intensive Care, The Royal Brompton and Harefield Hospitals, London SW3 6NP, UK;
- Department of Cardiovascular Sciences, KU Leuven, 3000 Leuven, Belgium
- Department of Cardiovascular Diseases, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium;
- Pharmacy Department, University Hospitals Leuven, 3000 Leuven, Belgium;
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9
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Cies JJ, Moore WS, Giliam N, Low T, Marino D, Deacon J, Enache A, Chopra A. Oxygenator impact on voriconazole in extracorporeal membrane oxygenation circuits. Perfusion 2020; 35:529-533. [PMID: 32627659 DOI: 10.1177/0267659120937906] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
INTRODUCTION To determine the oxygenator impact on alterations of voriconazole in a contemporary neonatal/pediatric (1/4 inch) and adolescent/adult (3/8 inch) extracorporeal membrane oxygenation circuit including the Quadrox-i® oxygenator. METHODS Simulated closed-loop extracorporeal membrane oxygenation circuits (1/4 and 3/8 inch) were prepared with a Quadrox-i pediatric and Quadrox-i adult oxygenator and blood primed. In addition, 1/4- and 3/8-inch circuits were also prepared without an oxygenator in series. A one-time dose of voriconazole was administered into the circuits, and serial pre- and post-oxygenator concentrations were obtained at 5 minutes, 1, 2, 3, 4, 5, 6, and 24 hour time points. Voriconazole was also maintained in a glass vial and samples were taken from the vial at the same time periods for control purposes to assess for spontaneous drug degradation. RESULTS For the 1/4-inch circuit, there was an approximate mean of 64-67% voriconazole loss with the oxygenator in series and mean of 15-20% voriconazole loss without an oxygenator in series at 24 hours. For the 3/8-inch circuit, there was an approximate mean of 44-51% voriconazole loss with the oxygenator in series and a mean of 8-12% voriconazole loss without an oxygenator in series at 24 hours. The reference voriconazole concentrations remained relatively constant during the entire study period demonstrating that the drug loss in each size of the extracorporeal membrane oxygenation circuit with or without an oxygenator was not a result of spontaneous drug degradation. CONCLUSION This ex vivo investigation demonstrated substantial voriconazole loss within an extracorporeal membrane oxygenation circuit with an oxygenator in series with both sizes of the Quadrox-i oxygenator at 24 hours and no significant voriconazole loss in the absence of an oxygenator. Further evaluations with multiple dose in vitro and in vivo investigations are needed before specific voriconazole dosing recommendations can be made for clinical application with extracorporeal membrane oxygenation.
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Affiliation(s)
- Jeffrey J Cies
- The Center for Pediatric Pharmacotherapy LLC, Pottstown, PA, USA.,Drexel University College of Medicine, Philadelphia, PA, USA
| | - Wayne S Moore
- The Center for Pediatric Pharmacotherapy LLC, Pottstown, PA, USA
| | - Nadji Giliam
- St. Christopher's Hospital for Children, Philadelphia, PA, USA
| | - Tracy Low
- St. Christopher's Hospital for Children, Philadelphia, PA, USA
| | - Daniel Marino
- St. Christopher's Hospital for Children, Philadelphia, PA, USA
| | - Jillian Deacon
- St. Christopher's Hospital for Children, Philadelphia, PA, USA
| | - Adela Enache
- Atlantic Diagnostic Laboratories, Bensalem, PA, USA
| | - Arun Chopra
- The Center for Pediatric Pharmacotherapy LLC, Pottstown, PA, USA.,NYU Langone Medical Center, New York, NY, USA.,NYU School of Medicine, New York, NY, USA
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10
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Sutiman N, Koh JC, Watt K, Hornik C, Murphy B, Chan YH, Lee JH. Pharmacokinetics Alterations in Critically Ill Pediatric Patients on Extracorporeal Membrane Oxygenation: A Systematic Review. Front Pediatr 2020; 8:260. [PMID: 32670992 PMCID: PMC7332755 DOI: 10.3389/fped.2020.00260] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 04/27/2020] [Indexed: 12/13/2022] Open
Abstract
Objectives: This study aimed to identify alterations in pharmacokinetics in children on extracorporeal membrane oxygenation (ECMO), identify knowledge gaps, and inform future pharmacology studies. Data Sources: We systematically searched the databases MEDLINE, CINAHL, and Embase from earliest publication until November 2018 using a controlled vocabulary and keywords related to "ECMO" and "pharmacokinetics," "pharmacology," "drug disposition," "dosing," and "pediatrics." Study Selection: Inclusion criteria were as follows: study population aged <18 years, supported on ECMO for any indications, received any medications while on ECMO, and reported pharmacokinetic data. Data Extraction: Clearance and/or volume of distribution values were extracted from included studies. Data Synthesis: Forty-one studies (total patients = 574) evaluating 23 drugs met the inclusion criteria. The most common drugs studied were antimicrobials (n = 13) and anticonvulsants (n = 3). Twenty-eight studies (68%) were conducted in children <1 year of age. Thirty-three studies (80%) were conducted without intra-study comparisons to non-ECMO controls. Increase in volume of distribution attributable to ECMO was demonstrated for nine (56%) drugs: cefotaxime, gentamicin, piperacillin/tazobactam, fluconazole, micafungin, levetiracetam, clonidine, midazolam, and sildenafil (range: 23-345% increase relative to non-ECMO controls), which may suggest the need for higher initial dosing. Decreased volume of distribution was reported for two drugs: acyclovir and ribavirin (50 and 69%, respectively). Decreased clearance was reported for gentamicin, ticarcillin/clavulanate, bumetanide, and ranitidine (range: 26-95% decrease relative to non-ECMO controls). Increased clearance was reported for caspofungin, micafungin, clonidine, midazolam, morphine, and sildenafil (range: 25-455% increase relative to non-ECMO controls). Conclusions: There were substantial pharmacokinetic alterations in 70% of drugs studied in children on ECMO. However, studies evaluating pharmacokinetic changes of many drug classes and those that allow direct comparisons between ECMO and non-ECMO patients are still lacking. Systematic evaluations of pharmacokinetic alterations of drugs on ECMO that incorporate multidrug opportunistic trials, physiologically based pharmacokinetic modeling, and other methods are necessary for definitive dose recommendations. Trial Registration Prospero Identifier: CRD42019114881.
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Affiliation(s)
| | - Janine Cynthia Koh
- Children's Intensive Care Unit, Department of Pediatrics, KK Women's and Children's Hospital, Singapore, Singapore
| | - Kevin Watt
- Department of Pediatrics, Duke University Medical Center, Durham, NC, United States
- Duke Clinical Research Institute, Durham, NC, United States
| | - Christoph Hornik
- Department of Pediatrics, Duke University Medical Center, Durham, NC, United States
- Duke Clinical Research Institute, Durham, NC, United States
| | - Beverly Murphy
- Duke University Medical Center Library and Archives, Durham, NC, United States
| | - Yoke Hwee Chan
- Duke-NUS Medical School, Singapore, Singapore
- Children's Intensive Care Unit, Department of Pediatrics, KK Women's and Children's Hospital, Singapore, Singapore
| | - Jan Hau Lee
- Duke-NUS Medical School, Singapore, Singapore
- Children's Intensive Care Unit, Department of Pediatrics, KK Women's and Children's Hospital, Singapore, Singapore
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11
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Raffaeli G, Cavallaro G, Allegaert K, Koch BCP, Mosca F, Tibboel D, Wildschut ED. Sequestration of Voriconazole and Vancomycin Into Contemporary Extracorporeal Membrane Oxygenation Circuits: An in vitro Study. Front Pediatr 2020; 8:468. [PMID: 32974242 PMCID: PMC7481439 DOI: 10.3389/fped.2020.00468] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/03/2020] [Indexed: 12/29/2022] Open
Abstract
Background: Bacterial and fungal infections are common and often contribute to death in patients undergoing extracorporeal membrane oxygenation (ECMO). Drug disposition is altered during ECMO, and adsorption in the circuit is an established causative factor. Vancomycin and voriconazole are widely used, despite the lack of evidence-based prescription guidelines. Objective: The objective of this study was to determine the extraction of voriconazole and vancomycin by the Xenios/Novalung ECMO circuits. Methods: We have set up nine closed-loop ECMO circuits, consisting of four different iLAActivve ® kits for neonatal, pediatric, and adult support: three iLA-ActivveMiniLung ® petite kits, two iLA-ActivveMiniLung ® kits, two iLA-ActivveiLA ® kits, and two iLA-Activve X-lung ® kits. The circuits were primed with whole blood and maintained at physiologic conditions for 24 h. Voriconazole and vancomycin were injected as a single-bolus age-related dose into the circuits. Pre-membrane (P2) blood samples were obtained at baseline and after drug injection at 2, 10, 30, 180, 360 min, and 24 h. A control sample at 2 min was collected for spontaneous drug degradation testing at 24 h. Results: Seventy-two samples were analyzed in triplicate. The mean percentage of drug recovery at 24 h was 20% for voriconazole and 62% for vancomycin. Conclusions: The extraction of voriconazole and vancomycin by contemporary ECMO circuits is clinically relevant across all age-related circuit sizes and may result in reduced drug exposure in vivo.
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Affiliation(s)
- Genny Raffaeli
- Intensive Care and Department of Pediatric Surgery Erasmus MC-Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, Netherlands.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Giacomo Cavallaro
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Karel Allegaert
- Department of Development and Regeneration and Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.,Hospital Pharmacy, Erasmus MC, Rotterdam, Netherlands
| | | | - Fabio Mosca
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Dick Tibboel
- Intensive Care and Department of Pediatric Surgery Erasmus MC-Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Enno D Wildschut
- Intensive Care and Department of Pediatric Surgery Erasmus MC-Sophia Children's Hospital, University Medical Center Rotterdam, Rotterdam, Netherlands
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12
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Risk factors associated with insufficient and potentially toxic voriconazole plasma concentrations: an observational study. J Chemother 2019; 31:401-407. [PMID: 31359851 DOI: 10.1080/1120009x.2019.1646974] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The aim of this study was to identify potential factors associated with insufficient/toxic voriconazole trough concentrations (VTCs) in patients in order to screen the high-risk population. A total of 119 VTCs were obtained from 67 patients. Multivariate regression analysis suggested that insufficient VTCs (<1.0 mg/L) were significantly associated with younger age and underlying hematological malignancy, and toxic VTCs (>5.5 mg/L) were significantly associated with lower serum albumin (ALB) level. Receiver operating characteristic curve analysis indicated that patients whose age < 47 years were the high-risk population of insufficient VTCs, and patients whose ALB <27 g/L were the high-risk population of toxic VTCs. Younger age and underlying hematological malignancy were significant predictors of insufficient VTCs, and lower ALB level was found to be a significant predictor of toxic VTCs. Therefore, we recommend to increase the monitoring on these high-risk population to avoid treatment failure and to prevent toxic adverse events.
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13
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In Vitro and In Vivo Efficacy of a Novel and Long-Acting Fungicidal Azole, PC1244, on Aspergillus fumigatus Infection. Antimicrob Agents Chemother 2018; 62:AAC.01941-17. [PMID: 29439966 PMCID: PMC5923123 DOI: 10.1128/aac.01941-17] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 02/05/2018] [Indexed: 12/19/2022] Open
Abstract
The antifungal effects of the novel triazole PC1244, designed for topical or inhaled administration, against Aspergillus fumigatus were tested in a range of in vitro and in vivo studies. PC1244 demonstrated potent antifungal activities against clinical A. fumigatus isolates (n = 96) with a MIC range of 0.016 to 0.25 μg/ml, whereas the MIC range for voriconazole was 0.25 to 0.5 μg/ml. PC1244 was a strong tight-binding inhibitor of recombinant A. fumigatus CYP51A and CYP51B (sterol 14α-demethylase) enzymes and strongly inhibited ergosterol synthesis in A. fumigatus with a 50% inhibitory concentration of 8 nM. PC1244 was effective against a broad spectrum of pathogenic fungi (MIC range, <0.0078 to 2 μg/ml), especially Aspergillus terreus, Trichophyton rubrum, Candida albicans, Candida glabrata, Candida krusei, Cryptococcus gattii, Cryptococcus neoformans, and Rhizopus oryzae. PC1244 also proved to be quickly absorbed into both A. fumigatus hyphae and bronchial epithelial cells, producing persistent antifungal effects. In addition, PC1244 showed fungicidal activity (minimum fungicidal concentration, 2 μg/ml) which indicated that it was 8-fold more potent than voriconazole. In vivo, once-daily intranasal administration of PC1244 (3.2 to 80 μg/ml) to temporarily neutropenic, immunocompromised mice 24 h after inoculation with itraconazole-susceptible A. fumigatus substantially reduced the fungal load in the lung, the galactomannan concentration in serum, and circulating inflammatory cytokine levels. Furthermore, 7 days of extended prophylaxis with PC1244 showed in vivo effects superior to those of 1 day of prophylactic treatment, suggesting accumulation of the effects of PC1244. Thus, PC1244 has the potential to be a novel therapy for the treatment of A. fumigatus infection in the lungs of humans.
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14
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Di Nardo M, Wildschut ED. Drugs pharmacokinetics during veno-venous extracorporeal membrane oxygenation in pediatrics. J Thorac Dis 2018; 10:S642-S652. [PMID: 29732182 DOI: 10.21037/jtd.2017.11.02] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Data evaluating pharmacokinetic/pharmacodynamic (PK/PD) aspect in the pediatric population are scarce especially regarding the pediatric intensive care unit. Dosing of frequently used drugs (sedatives, analgesics, antibiotics and cardiovascular drugs) are mainly based on non "pediatric intensive care unit (PICU)" patients, and sometimes are translated from adult patients. Among PICU patients, the most complex patients are the ones who are critically ill and are receiving mechanical circulatory/respiratory support for cardiac and/or respiratory failure. The use of extracorporeal membrane oxygenation is associated with major PK and PD changes, especially in neonates and children. The objective of this review is to assess the current literature for pediatric PK data in patients receiving extracorporeal membrane oxygenation (ECMO).
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Affiliation(s)
- Matteo Di Nardo
- Pediatric Intensive Care Unit, Children's Hospital Bambino Gesù, IRCCS, Rome, Italy
| | - Enno Diederick Wildschut
- Intensive Care and Department of Pediatric Surgery Erasmus MC, Sophia Children's Hospital, Rotterdam, Netherlands
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15
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Job KM, Olson J, Stockmann C, Constance JE, Enioutina EY, Rower JE, Linakis MW, Balch AH, Yu T, Liu X, Thorell EA, Sherwin CMT. Pharmacodynamic studies of voriconazole: informing the clinical management of invasive fungal infections. Expert Rev Anti Infect Ther 2017; 14:731-46. [PMID: 27355512 DOI: 10.1080/14787210.2016.1207526] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Voriconazole is a broad-spectrum antifungal agent commonly used to treat invasive fungal infections (IFI), including aspergillosis, candidiasis, Scedosporium infection, and Fusarium infection. IFI often occur in immunocompromised patients, leading to increased morbidity and mortality. AREAS COVERED The objective of this review is to summarize the pharmacodynamic properties of voriconazole and to provide considerations for potential optimal dosing strategies. Studies have demonstrated superior clinical response when an AUC/MIC >25 or Cmin/MIC >1 is attained in adult patients, correlating to a trough concentration range as narrow as 2-4.5 mg/L; however, these targets are poorly established in the pediatric population. Topics in this discussion include voriconazole use in multiple age groups, predisposing patient factors for IFI, and considerations for clinicians managing IFI. Expert commentary: The relationship between voriconazole dosing and exposure is not well defined due to the large inter- and intra-subject variability. Development of comprehensive decision support tools for individualizing dosing, particularly in children who require higher dosing, will help to increase the probability of achieving therapeutic efficacy and decrease sub-therapeutic dosing and adverse events.
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Affiliation(s)
- Kathleen M Job
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA
| | - Jared Olson
- b Pharmacy, Primary Children's Hospital, Intermountain Healthcare , University of Utah , Salt Lake City , UT , USA
| | - Chris Stockmann
- c Division of Pediatric Infectious Diseases, Department of Pediatrics , University of Utah , Salt Lake City , UT , USA
| | - Jonathan E Constance
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA
| | - Elena Y Enioutina
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA.,d Division of Microbiology and Immunology, Department of Pathology , University of Utah , Salt Lake City , UT , USA
| | - Joseph E Rower
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA
| | - Matthew W Linakis
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA
| | - Alfred H Balch
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA
| | - Tian Yu
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA
| | - Xiaoxi Liu
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA
| | - Emily A Thorell
- c Division of Pediatric Infectious Diseases, Department of Pediatrics , University of Utah , Salt Lake City , UT , USA
| | - Catherine M T Sherwin
- a Division of Clinical Pharmacology , University of Utah , Salt Lake City , UT , USA.,e Department of Pharmacology and Toxicology, College of Pharmacy , University of Utah , Salt Lake City , UT , USA
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16
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In Vivo Biomarker Analysis of the Effects of Intranasally Dosed PC945, a Novel Antifungal Triazole, on Aspergillus fumigatus Infection in Immunocompromised Mice. Antimicrob Agents Chemother 2017. [PMID: 28630185 PMCID: PMC5571324 DOI: 10.1128/aac.00124-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
PC945 is a novel triazole optimized for lung delivery, and the objective of this study is to determine the effects of intranasally dosed PC945 on Aspergillus fumigatus infection and associated biomarkers in immunocompromised mice. PC945, posaconazole, or voriconazole was administered intranasally once daily on days 0 to 3 (early intervention) or days 1 to 3 (late intervention) postinfection in temporarily neutropenic A/J mice infected intranasally with A. fumigatus, and bronchoalveolar lavage fluid (BALF) and serum were collected on day 3. The effects of extended prophylaxis treatment (daily from days −7 to +3 or days −7 to 0) were also compared with those of the shorter treatment regimens (days −1 to +3 or days −1 and 0). Early and late interventions with PC945 (2.8 to 350 μg/mouse; approximately 0.11 to ∼14 mg/kg of body weight) were found to inhibit lung fungal loads and to decrease the concentrations of galactomannan (GM) in both BALF and serum as well as several biomarkers in BALF (interferon gamma [IFN-γ], interleukin-17 [IL-17], and malondialdehyde) and serum (tumor necrosis factor alpha [TNF-α] and IL-6) in a dose-dependent manner and were >3- and >47-fold more potent than intranasally dosed posaconazole and voriconazole, respectively. Furthermore, extended prophylaxis with low-dose PC945 (0.56 μg/mouse; 0.022 mg/kg) was found to inhibit fungal loads and to decrease the concentrations biomarkers more potently than did the shorter treatment regimens. Thus, PC945 dosed intranasally once daily showed potent antifungal effects, and the effects of PC945 accumulated upon repeat dosing and were persistent. Therefore, PC945 has the potential to be a novel inhaled therapy for the treatment of A. fumigatus infection in humans.
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17
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Kang HM, Lee HJ, Cho EY, Yu KS, Lee H, Lee JW, Kang HJ, Park KD, Shin HY, Choi EH. The Clinical Significance of Voriconazole Therapeutic Drug Monitoring in Children With Invasive Fungal Infections. Pediatr Hematol Oncol 2016; 32:557-67. [PMID: 26558811 DOI: 10.3109/08880018.2015.1088905] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Voriconazole is an antifungal drug used to treat fungal infections. This was a retrospective study of 61 children with hemato-oncologic diseases or solid organ transplantation who were administered voriconazole for invasive fungal infections. Of the 61 patients, 31 (50.8%) were in the therapeutic drug monitoring (TDM) group, and 30 (49.2%) were in the non-TDM group. At 12 weeks, treatment failure rate in the non-TDM group was higher than the TDM group (78.6% versus 40.0%, p = 0.038). Drug discontinuation due to adverse events was less frequent in the TDM group than the non-TDM group (26.0% versus 92.3%, p = 0.001). Children required higher dosages to maintain drug levels within the targeted therapeutic range: an average of 8.3 mg/kg/dose in patients <12 years old and 6.9 mg/kg/dose for those ≥12 years old. Treatment failure rates were higher in patients whose voriconazole levels remained below 1.0 mg/L for more than 50% of their treatment duration than those above 1.0 mg/L (71.4% vs. 9.1% after 12 weeks, p = 0.013). Serial monitoring of voriconazole levels in children is important for improving treatment response and preventing unnecessary drug discontinuation. Higher dosages are needed in children to reach therapeutic range.
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Affiliation(s)
- Hyun Mi Kang
- a Department of Pediatrics , Seoul National University Hospital , Seoul , South Korea.,b Department of Pediatrics , Seoul National University College of Medicine , Seoul , South Korea
| | - Hoan Jong Lee
- a Department of Pediatrics , Seoul National University Hospital , Seoul , South Korea.,b Department of Pediatrics , Seoul National University College of Medicine , Seoul , South Korea
| | - Eun Young Cho
- b Department of Pediatrics , Seoul National University College of Medicine , Seoul , South Korea.,c Department of Pediatrics , Chungnam National University Hospital , Daejeon , South Korea
| | - Kyung-Sang Yu
- d Department of Clinical Pharmacology and Therapeutics , Seoul National University College of Medicine , Seoul , South Korea
| | - Hyunju Lee
- b Department of Pediatrics , Seoul National University College of Medicine , Seoul , South Korea.,e Department of Pediatrics , Seoul National University Bundang Hospital , Seongnam , South Korea
| | - Ji Won Lee
- a Department of Pediatrics , Seoul National University Hospital , Seoul , South Korea.,f Department of Pediatrics , Cancer Research Institute, Seoul National University College of Medicine , Seoul , South Korea
| | - Hyoung Jin Kang
- a Department of Pediatrics , Seoul National University Hospital , Seoul , South Korea.,f Department of Pediatrics , Cancer Research Institute, Seoul National University College of Medicine , Seoul , South Korea
| | - Kyung Duk Park
- a Department of Pediatrics , Seoul National University Hospital , Seoul , South Korea.,f Department of Pediatrics , Cancer Research Institute, Seoul National University College of Medicine , Seoul , South Korea
| | - Hee Young Shin
- a Department of Pediatrics , Seoul National University Hospital , Seoul , South Korea.,f Department of Pediatrics , Cancer Research Institute, Seoul National University College of Medicine , Seoul , South Korea
| | - Eun Hwa Choi
- a Department of Pediatrics , Seoul National University Hospital , Seoul , South Korea.,b Department of Pediatrics , Seoul National University College of Medicine , Seoul , South Korea
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18
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Pharmacokinetics and Dosing of Anti-infective Drugs in Patients on Extracorporeal Membrane Oxygenation: A Review of the Current Literature. Clin Ther 2016; 38:1976-94. [PMID: 27553752 DOI: 10.1016/j.clinthera.2016.07.169] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 07/23/2016] [Accepted: 07/27/2016] [Indexed: 12/23/2022]
Abstract
PURPOSE Extracorporeal membrane oxygenation (ECMO) is a cardiopulmonary bypass device that is used to temporarily support the most critically ill of patients with respiratory and/or cardiac failure. Infection and its sequelae may be an indication for ECMO or infections may be acquired while on ECMO and are associated with a mortality >50%. Effective therapy requires optimal dosing. However, optimal dosing can be different in patients on ECMO because the ECMO circuit can alter drug pharmacokinetics. This review assessed the current literature for pharmacokinetic data and subsequent dosing recommendations for anti-infective drugs in patients on ECMO. METHODS We searched the PubMed and Embase databases (1965 to February 2016) and included case reports, case series, or studies that provided pharmacokinetic data for anti-infective drugs including antibiotics, antifungals, and antivirals being used to treat patients of all age groups on ECMO. Pharmacokinetic parameters and dosing recommendations based on these data are presented. FINDINGS The majority of data on this topic comes from neonatal studies of antibiotics from the 1980s and 1990s. These studies generally demonstrate a larger volume of distribution due to ECMO and therefore higher doses are needed initially. More adult data are now emerging, but with a predominance of case reports and case series without comparison with critically ill controls. The available pharmacokinetic analyses do suggest that volume of distribution and clearance are unchanged in the adult population, and therefore dosing recommendations largely remain unchanged. There is a lack of data on children older than 1 year of age. The data support the importance of therapeutic drug monitoring when available in this population of patients. IMPLICATIONS This review found reasonably robust dosing recommendations for some drugs and scant or no data for other important anti-infectives. In order to better determine optimal dosing for patients on ECMO, a systematic approach is needed. Approaches that combine ex vivo ECMO experiments, animal studies, specialized pharmacokinetic modeling, and human clinical trials are being developed.
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Himebauch AS, Kilbaugh TJ, Zuppa AF. Pharmacotherapy during pediatric extracorporeal membrane oxygenation: a review. Expert Opin Drug Metab Toxicol 2016; 12:1133-42. [PMID: 27322360 DOI: 10.1080/17425255.2016.1201066] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Pediatric critical illness and associated alterations in organ function can change drug pharmacokinetics (PK). Extracorporeal membrane oxygenation (ECMO), a life-saving therapy for severe cardiac and/or respiratory failure, causes additional PK alterations that affect drug disposition. AREAS COVERED The purposes of this review are to discuss the PK changes that occur during ECMO, the associated therapeutic implications, and to review PK literature relevant to pediatric ECMO. We discuss various classes of drugs commonly used for pediatric patients on ECMO, including sedatives, analgesics, antimicrobials and cardiovascular drugs. Finally, we discuss future areas of research and recommend strategies for future pediatric ECMO pharmacologic investigations. EXPERT OPINION Clinicians caring for pediatric patients treated with ECMO must have an understanding of PK alterations that could lead to either therapeutic failures or increased drug toxicity during this life-saving therapy. Limited data currently exist for optimal drug dosing in pediatric populations who are treated with ECMO. While there are clear challenges to conducting and analyzing data associated with clinical pharmacokinetic-pharmacodynamic studies of children on ECMO, we present techniques to address these challenges. Improved understanding of the physiology and drug disposition during ECMO combined with PK-PD modeling will allow for more adaptable and individualized dosing schemes.
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Affiliation(s)
- Adam S Himebauch
- a Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine , University of Pennsylvania, The Children's Hospital of Philadelphia , Philadelphia , PA , USA.,b Center for Clinical Pharmacology , The Children's Hospital of Philadelphia , Philadelphia , PA , USA
| | - Todd J Kilbaugh
- a Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine , University of Pennsylvania, The Children's Hospital of Philadelphia , Philadelphia , PA , USA
| | - Athena F Zuppa
- a Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine , University of Pennsylvania, The Children's Hospital of Philadelphia , Philadelphia , PA , USA.,b Center for Clinical Pharmacology , The Children's Hospital of Philadelphia , Philadelphia , PA , USA
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Moriyama B, Kadri S, Henning SA, Danner RL, Walsh TJ, Penzak SR. Therapeutic Drug Monitoring and Genotypic Screening in the Clinical Use of Voriconazole. CURRENT FUNGAL INFECTION REPORTS 2015; 9:74-87. [PMID: 26918067 DOI: 10.1007/s12281-015-0219-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Voriconazole is an antifungal triazole that is the first line agent for treatment of invasive aspergillosis. It is metabolized by CYP2C19, CYP2C9, and CYP3A4 and demonstrates wide interpatient variability in serum concentrations. Polymorphisms in CYP2C19 contribute to variability in voriconazole pharmacokinetics. Here, evidence is examined for the use of voriconazole therapeutic drug monitoring (TDM) and the role of CYP2C19 genotyping in voriconazole dosing. The majority of studies exploring the impact of voriconazole TDM on efficacy and safety have found TDM to be beneficial. However, most of these studies are observational, with only one being a randomized controlled trial. High-volume multicenter randomized controlled trials of TDM are currently not available to support definitive guidelines. There is a significant relationship in healthy volunteers between CYP2C19 genotype and voriconazole pharmacokinetics, but this association is markedly less visible in actual patients. While CYP2C19 genotype data may explain variability of voriconazole serum levels, they alone are not sufficient to guide initial dosing. The timeliness of availability of CYP2C19 genotype data in treatment of individual patients also remains challenging. Additional studies are needed before implementation of CYP2C19 genotyping for voriconazole dosing into routine clinical care.
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Affiliation(s)
- Brad Moriyama
- NIH Clinical Center, Pharmacy Department, Bethesda, MD
| | - Sameer Kadri
- NIH Clinical Center, Critical Care Medicine Department, Bethesda, MD
| | | | - Robert L Danner
- NIH Clinical Center, Critical Care Medicine Department, Bethesda, MD
| | - Thomas J Walsh
- Transplantation-Oncology Infectious Diseases Program, Department of Medicine, Pediatrics, and Microbiology and Infectious Diseases, Weill Cornell Medical Center of Cornell University, New York, NY
| | - Scott R Penzak
- Department of Pharmacotherapy University of North Texas System College of Pharmacy, Fort Worth, TX
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Abstract
Background:Scedosporial infections are usually encountered in the immunocompromised patients. However, they are now emerging in the immunocompetent population and have an affinity for the central nervous system. They represent a therapeutic challenge, since they are highly resistant to most antifungal medications.Methods:We report the case of an immunocompetent patient with multiple cerebral abscesses secondary to Scedosporium apiospermum following extracorporeal membrane oxygenation (ECMO) and review the literature about this challenging cerebral infection.Results:A previously healthy 33-year-old male admitted to the hospital for a community-acquired pneumonia requiring ECMO subsequently developed multiple cerebral abscesses. He was empirically treated with caspofungin, which was changed to voriconazole once surgical aspiration revealed Scedosporium apiospermum. Despite multiple aspirations, decompressive craniectomy to alleviate intracranial pressure, and an appropriate antifungal agent, the patient did not survive this aggressive infection.Conclusion:Brain abscesses with Scedosporium apiospermum present a therapeutic challenge. High clinical suspicion leading to early appropriate antifungal therapy and combined surgical interventions might improve the prognosis.
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Serum voriconazole level variability in patients with hematological malignancies receiving voriconazole therapy. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2014; 25:271-6. [PMID: 25371690 PMCID: PMC4211351 DOI: 10.1155/2014/214813] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Voriconazole is an important antifungal agent used to treat invasive fungal infections; however, its administration can be difficult because of the narrow range between the level required for therapeutic efficacy and the level at which there is risk for hepatic and neurological toxicity. The purpose of this study was to elucidate the relationships among oral dosage, voriconazole levels and liver enzyme levels among leukemia patients. INTRODUCTION: Voriconazole plasma concentrations have been correlated with oral dosing in healthy subjects, but have been poorly characterized in ill patients with hematological malignancies receiving intensive chemotherapy. METHODS: The relationship between orally administered voriconazole, plasma concentrations and liver toxicity was examined in a cohort of 69 primarily acute leukemia patients undergoing intensive chemotherapy. RESULTS: Oral administration of voriconazole was associated with significant interpatient variability, with voriconazole steady-state concentrations ranging from 0 μg/mL to 16.6 μg/mL. Approximately 20% of patients achieved steady-state concentrations <1 μg/mL. When adjusted for weight, patients receiving higher voriconazole doses tended toward higher plasma concentrations; however, there was no significant relationship between the plasma concentration and genotype, age, sex or use of concomitant proton pump inhibitors. Voriconazole concentrations were correlated with higher serum alkaline phosphatase levels at day 6 to 8, and with higher bilirubin and aspartate aminotransferase levels at day 14 to 16, but not with other liver enzyme levels. CONCLUSION: In ill patients with acute leukemia and related disorders undergoing treatment with oral voriconazole, there is a poor correlation between the voriconazole dose and plasma concentrations, and many patients achieve levels that are considered to be subtherapeutic. The findings support the routine use of therapeutic drug monitoring in these patients.
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Kim SH, Lee DG, Kwon JC, Lee HJ, Cho SY, Park C, Kwon EY, Park SH, Choi SM, Choi JH, Yoo JH. Clinical Impact of Cytochrome P450 2C19 Genotype on the Treatment of Invasive Aspergillosis under Routine Therapeutic Drug Monitoring of Voriconazole in a Korean Population. Infect Chemother 2013; 45:406-14. [PMID: 24475354 PMCID: PMC3902809 DOI: 10.3947/ic.2013.45.4.406] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 09/18/2013] [Accepted: 10/16/2013] [Indexed: 01/28/2023] Open
Abstract
Background Genetic polymorphisms of cytochrome P450 enzymes, especially CYP2C19 influence voriconazole pharmacokinetics. However, the impact of CYP2C19 genetic polymorphisms on the therapeutic efficacy and toxicity of voriconazole therapy are not well established. Materials and Methods In this prospective observational study, we analyzed all consecutive adult patients with hematologic diseases who were treated for invasive aspergillosis (IA) with voriconazole between January 2011 and June 2012. CYP2C19 genotype and routine therapeutic drug monitoring of voriconazole were performed. The target range for voriconazole trough levels was 1-5.5 mg/L. Results A total of 104 consecutive patients were enrolled, including 39 homozygous extensive metabolizers (EMs, 38%), 50 heterozygous extensive metabolizers (HEMs, 48%), and 15 poor metabolizers (PMs, 14%). The initial voriconazole trough levels were 1.8, 2.7, and 3.2 mg/L in EMs, HEMs, and PMs, respectively (P = 0.068). Out-of-range initial trough levels were most frequently observed in EMs (46%) followed by HEMs (26%) and PMs (0%) (P = 0.001). The frequency of initial trough levels < 1 mg/L but not > 5.5 mg/L differed significantly among the 3 groups (P = 0.005). However, treatment response, all-cause and IA-attributable mortality, and the occurrence of voriconazole-related adverse events did not differ significantly among the 3 groups (P = 0.399, P = 0.412, P = 0.317, and P = 0.518, respectively). Conclusions While none of the initial voriconazole trough levels in PMs was outside the target range, subtherapeutic initial trough levels were frequent in EMs. Although there was no significant relationship between CYP2C19 genotype and either the clinical outcomes of IA or toxicity of voriconazole, further large-scale multicenter studies using clinical data from homogeneous populations are required.
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Affiliation(s)
- Si-Hyun Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Dong-Gun Lee
- Division of Infectious Diseases, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Catholic Blood and Marrow Transplantation Center, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jae-Cheol Kwon
- Department of Internal Medicine, Daniel Medical Center, Bucheon, Korea
| | - Hyo-Jin Lee
- Division of Infectious Diseases, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sung-Yeon Cho
- Division of Infectious Diseases, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Chulmin Park
- Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Eun-Young Kwon
- Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sun Hee Park
- Division of Infectious Diseases, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Su-Mi Choi
- Division of Infectious Diseases, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jung-Hyun Choi
- Division of Infectious Diseases, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jin-Hong Yoo
- Division of Infectious Diseases, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. ; Vaccine Bio Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
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Heng SC, Nation RL, Levvey B, Snell GI, Slavin MA, Kong DCM. Quantification of voriconazole in human bronchoalveolar lavage fluid using high-performance liquid chromatography with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 913-914:171-5. [PMID: 23314356 DOI: 10.1016/j.jchromb.2012.11.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 11/27/2012] [Accepted: 11/27/2012] [Indexed: 11/25/2022]
Abstract
The quantification of voriconazole concentration in lung epithelial lining fluid to facilitate the management of pulmonary fungal colonisation or aspergillosis is of increasing interest. An accurate and reproducible high-performance liquid chromatography method to quantify voriconazole in human bronchoalveolar lavage (BAL) fluid was developed and validated. BAL samples were concentrated by freeze-drying and reconstituted with water prior to deproteinisation. Separation was achieved with a C18 column employing fluorescence detection (excitation: 260nm, emission: 370nm). The calibration curves were linear from 2.5 to 500ng/mL. The intra- and inter-day precisions were within 7%. Accuracies ranged from 102% to 107%. The clinical applicability was established by successful measurement of voriconazole concentrations in lung transplant recipients. The assay provides an alternative approach for those with negligible access to liquid chromatography-tandem mass spectrometry instrumentation.
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Affiliation(s)
- S C Heng
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
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Wildschut ED, van Saet A, Pokorna P, Ahsman MJ, Van den Anker JN, Tibboel D. The impact of extracorporeal life support and hypothermia on drug disposition in critically ill infants and children. Pediatr Clin North Am 2012; 59:1183-204. [PMID: 23036251 PMCID: PMC4709257 DOI: 10.1016/j.pcl.2012.07.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Extracorporeal membrane oxygenation (ECMO) support is an established lifesaving therapy for potentially reversible respiratory or cardiac failure. In 10% of all pediatric patients receiving ECMO, ECMO therapy is initiated during or after cardiopulmonary resuscitation. Therapeutic hypothermia is frequently used in children after cardiac arrest, despite the lack of randomized controlled trials that show its efficacy. Hypothermia is frequently used in children and neonates during cardiopulmonary bypass (CPB). By combining data from pharmacokinetic studies in children on ECMO and CPB and during hypothermia, this review elucidates the possible effects of hypothermia during ECMO on drug disposition.
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Affiliation(s)
- Enno D. Wildschut
- Department of Pediatric Surgery, Intensive Care, Erasmus MC-Sophia Children’s Hospital, Dr. Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands,Corresponding author. Department of Pediatric Surgery, Intensive Care, Erasmus MC-Sophia Children’s Hospital, Dr Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands.
| | - Annewil van Saet
- Department of Pediatric Surgery, Intensive Care, Erasmus MC-Sophia Children’s Hospital, Dr. Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands,Department of Cardio-Thoracic Anesthesiology, Erasmus MC, Dr. Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands
| | - Pavla Pokorna
- Department of Pediatric Surgery, Intensive Care, Erasmus MC-Sophia Children’s Hospital, Dr. Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands,Faculty of Medicine, Department of Pediatrics, PICU/NICU, Charles University, ke Karlovu 2, Praha 2, 121 00 Prague, Czech Republic
| | - Maurice J. Ahsman
- LAP&P Consultants BV, Archimedesweg 31, 2333 CM, Leiden, The Netherlands
| | - John N. Van den Anker
- Department of Pediatric Surgery, Intensive Care, Erasmus MC-Sophia Children’s Hospital, Dr. Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands,Division of Pediatric Clinical Pharmacology, Children’s National Medical Center, Sheikh Zayed Campus for Advanced Children’s Medicine, 111 Michigan Avenue, NW, Washington, DC 20010, USA,Department of Pediatrics, School of Medicine and Health Sciences, The George Washington University, Washington, DC, USA,Department of Pharmacology & Physiology, School of Medicine and Health Sciences, The George Washington University, Washington, DC, USA
| | - Dick Tibboel
- Department of Pediatric Surgery, Intensive Care, Erasmus MC-Sophia Children’s Hospital, Dr. Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands
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An automated method for the simultaneous measurement of azole antifungal drugs in human plasma or serum using turbulent flow liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2012; 404:513-23. [DOI: 10.1007/s00216-012-6176-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 05/30/2012] [Accepted: 05/30/2012] [Indexed: 10/28/2022]
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Mitsani D, Nguyen MH, Shields RK, Toyoda Y, Kwak EJ, Silveira FP, Pilewski JM, Crespo MM, Bermudez C, Bhama JK, Clancy CJ. Prospective, observational study of voriconazole therapeutic drug monitoring among lung transplant recipients receiving prophylaxis: factors impacting levels of and associations between serum troughs, efficacy, and toxicity. Antimicrob Agents Chemother 2012; 56:2371-7. [PMID: 22330924 PMCID: PMC3346665 DOI: 10.1128/aac.05219-11] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 12/24/2011] [Indexed: 12/28/2022] Open
Abstract
Voriconazole prophylaxis is common following lung transplantation, but the value of therapeutic drug monitoring is unknown. A prospective, observational study of lung transplant recipients (n = 93) receiving voriconazole prophylaxis was performed. Serum voriconazole troughs (n = 331) were measured by high-pressure liquid chromatography. The median initial and subsequent troughs were 1.91 and 1.46 μg/ml, respectively. The age of the patient directly correlated with initial troughs (P = 0.005). Patients that were ≥ 60 years old and cystic fibrosis patients were significantly more likely to have higher and lower initial troughs, respectively. In 95% (88/93) of patients, ≥ 2 troughs were measured. In 28% (25/88) and 32% (28/88) of these patients, all troughs were ≤ 1.5 μg/ml or >1.5 μg/ml, respectively. Ten percent (10/93) and 27% (25/93) of the patients developed invasive fungal infection (tracheobronchitis) and fungal colonization, respectively. The median troughs at the times of positive and negative fungal cultures were 0.92 and 1.72 μg/ml (P = 0.07). Invasive fungal infections or colonization were more likely with troughs of ≤ 1.5 μg/ml (P = 0.01) and among patients with no trough of >1.5 μg/ml (P = 0.007). Other cutoff troughs correlated less strongly with microbiologic outcomes. Troughs correlated directly with aspartate transferase levels (P = 0.003), but not with other liver enzymes. Voriconazole was discontinued due to suspected toxicity in 27% (25/93) of the patients. The troughs did not differ at the times of suspected drug-induced hepatotoxicity, central nervous system (CNS) toxicity, or nausea/vomiting and in the absence of toxicity. Voriconazole prophylaxis was most effective at troughs of >1.5 μg/ml. A cutoff for toxicity was not identified, but troughs of >4 μg/ml were rare. The data support a target range of >1.5 to 4 μg/ml.
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Affiliation(s)
| | | | | | - Yoshiya Toyoda
- Department of Cardiothoracic Surgery, University of Pittsburgh
| | | | | | | | | | | | - Jay K. Bhama
- Department of Cardiothoracic Surgery, University of Pittsburgh
| | - Cornelius J. Clancy
- Divisions of Infectious Diseases
- V.A. Pittsburgh Healthcare System, Pittsburgh, Pennsylvania, USA
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Shekar K, Fraser JF, Smith MT, Roberts JA. Pharmacokinetic changes in patients receiving extracorporeal membrane oxygenation. J Crit Care 2012; 27:741.e9-18. [PMID: 22520488 DOI: 10.1016/j.jcrc.2012.02.013] [Citation(s) in RCA: 207] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 02/13/2012] [Accepted: 02/20/2012] [Indexed: 10/28/2022]
Abstract
Extracorporeal membrane oxygenation (ECMO) is a form of prolonged cardiopulmonary bypass used to temporarily sustain cardiac and/or respiratory function in critically ill patients. Extracorporeal membrane oxygenation further complicates the management of critically ill patients who already have profound physiologic derangements with consequent altered pharmacokinetics. The purpose of this study is to identify and critically review the published literature describing pharmacokinetics in the presence of ECMO. This review revealed a dearth of data describing pharmacokinetics during ECMO in critically ill adults, with most of the available data originating in neonates. Of concern, the present data indicate substantial variability and a lack of predictability in drug behavior in the presence of ECMO. The most common mechanisms by which ECMO affects pharmacokinetics are sequestration in the circuit, increased volume of distribution, and decreased drug elimination. While lipophilic drugs and highly protein-bound drugs (eg, voriconazole and fentanyl) are significantly sequestered in the circuit, hydrophilic drugs (eg, β-lactam antibiotics, glycopeptides) are significantly affected by hemodilution and other pathophysiologic changes that occur during ECMO. Although the published literature is insufficient to make any meaningful recommendations for adjusting therapy for drug dosing, this review systematically describes the available data enabling clinicians to make conclusions based on available data. Furthermore, this review serves to highlight the need for well-designed and conducted clinical and laboratory-based studies to provide the data from which robust dosing guidance can be developed to improve clinical outcomes in this most unwell cohort of patients.
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Affiliation(s)
- Kiran Shekar
- Critical Care Research Group, The Prince Charles Hospital and The University of Queensland, Brisbane, Australia.
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Kim KH, Lee S, Lee S, Yun NR, Kim NJ, Yu KS, Jang IJ, Park WB, Oh MD. Voriconazole-associated severe hyponatremia. Med Mycol 2012; 50:103-5. [DOI: 10.3109/13693786.2011.587210] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Heinz WJ, Silling G, Böhme A. Utilisation, efficacy and safety of voriconazole: prospective, non-interventional study on treatment of IFIs in clinical practice. Curr Med Res Opin 2011; 27:335-42. [PMID: 21155707 DOI: 10.1185/03007995.2010.542137] [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] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Invasive fungal infections (IFIs) are an important cause of morbidity and mortality, particularly in patients with cancer. The triazole voriconazole, given as oral or intravenous formulation, has a high bioavailability and proven efficacy against invasive aspergillosis, candidiasis and other fungi. We aimed to assess the utilisation, efficacy and safety of voriconazole with emphasis on the route of administration under standard clinical conditions. METHODS Prospective, observational study performed by 17 hospitals and office-based physicians in Germany. RESULTS A total of 264 patients received oral (53%) or intravenous (22%) voriconazole or both formulations sequentially (25%). Of 228 patients with specified fungal diagnosis, 95 (36.0%) had aspergillosis, 73 (27.7%) candidiasis. Sixty (22.7%) received voriconazole for other fungal indications (OFI). In 195 of 226 patients (86.2%), treatment was successful (39.8% cured and 46.5% partial response). In terms of primary diagnoses, favourable responses were noted in 90% for pulmonary aspergillosis, 85% for candidiasis and 87% for OFI. Microbiological success was documented in 138 patients, of whom 105 (76.1%) had complete eradication of fungi. Response rates by initial route were similar for oral and intravenous administration (86 and 87%). Twenty-six of 264 patients died during the study, 53 patients experienced a serious adverse event (five treatment related), and 10 withdrew due to all-causality adverse events (AEs). Tolerability was assessed as very good in 55%, and good in 40% of patients. CONCLUSIONS Voriconazole as oral or intravenous formulation was well tolerated and equally effective in critically ill patients with IFIs. This study in daily care confirms the outcomes of controlled clinical trials.
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Affiliation(s)
- Werner J Heinz
- Department of Internal Medicine II, Division of Infectious Diseases, University of Wuerzburg Medical Centre, Wuerzburg, Germany.
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Kim MJ, Youn MH, Kim SB, Cho YH, Lee MY, Cho SY, Kwon JC, Kim SH, Kim YJ, Lee DG. A Case of Visual and Auditory Hallucinations during Intravenous Voriconazole Therapy. Infect Chemother 2011. [DOI: 10.3947/ic.2011.43.5.421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Min-Ju Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Moon-Hee Youn
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang-Bae Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yul Hee Cho
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Min-Young Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung-Yeon Cho
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae-Cheol Kwon
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Si-Hyun Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoo-Jin Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Dong-Gun Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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McCoy D, Depestel DD, Carver PL. Primary antifungal prophylaxis in adult hematopoietic stem cell transplant recipients: current therapeutic concepts. Pharmacotherapy 2010; 29:1306-25. [PMID: 19857148 DOI: 10.1592/phco.29.11.1306] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In recipients of hematopoietic stem cell transplants (HSCTs), the mortality associated with invasive fungal infections (IFIs) remains high, despite the introduction of broad-spectrum antifungal agents over the past 2 decades. Preventing exposure to fungal pathogens in this population is impossible; therefore, clinicians have focused on prophylactic use of antifungal agents to prevent IFIs in high-risk HSCT recipients. It is important to target antifungal prophylaxis by type of HSCT (autologous or allogeneic), local epidemiology, and risk factors for IFIs so that patients can receive the most appropriate agent while balancing costs and the risks of toxicity, and minimizing the development of resistance. To assist clinicians in weighing the pros and cons of currently available antifungal agents when choosing a suitable prophylactic regimen, we provide a review of several key prospective randomized trials that evaluated various antifungal agents for primary prophylaxis in adult HSCT recipients. In addition, we describe the epidemiology of and risk factors for IFIs in HSCT recipients, the difficulties in diagnosing IFIs, antifungal agents used for prophylaxis, and the goals of primary prophylaxis. Fluconazole remains the gold standard for primary prophylaxis in autologous HSCT recipients. For allogeneic HSCT recipients, the agent chosen for prophylaxis must be based on the patient's risk factors for IFIs. In low-risk patients, fluconazole is an appropriate agent to use for primary prophylaxis immediately after transplantation. However, in allogeneic HSCT recipients who develop complications, such as graft failure, graft-versus-host disease, or cytomegalovirus infection, prophylaxis with a mould-active agent should be used.
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Affiliation(s)
- Dorothy McCoy
- Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
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Borrelli F, Izzo AA. Herb-drug interactions with St John's wort (Hypericum perforatum): an update on clinical observations. AAPS JOURNAL 2009; 11:710-27. [PMID: 19859815 DOI: 10.1208/s12248-009-9146-8] [Citation(s) in RCA: 149] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Accepted: 09/21/2009] [Indexed: 12/15/2022]
Abstract
St John's wort (SJW) extracts, prepared from the aerial parts of Hypericum perforatum, contain numerous pharmacologically active ingredients, including naphthodianthrones (e.g., hypericin and its derivatives), phloroglucinols derivatives (e.g., hyperforin, which inhibits the reuptake of a number of neurotransmitters, including serotonin), and flavonoids. Such extracts are widely used for the treatment of mild-to-moderate depression. As a monotherapy, SJW has an encouraging safety profile. However, relevant and, in some case, life-threatening interactions have been reported, particularly with drugs which are substrate of cytochrome P450 and/or P-glycoprotein. Well-documented SJW interactions include (1) reduced blood cyclosporin concentration, as suggested by multiple case reports as well as by clinical trials, (2) serotonin syndrome or lethargy when SJW was given with serotonin reuptake inhibitors, (3) unwanted pregnancies in women while using oral contraceptives and SJW, and (4) reduced plasma drug concentration of antiretroviral (e.g., indinavir, nevirapine) and anticancer (i.e., irinotecan, imatinib) drugs. Hyperforin, which is believed to contribute to the antidepressant action of St John's wort, is also strongly suspected to be responsible of most of the described interactions.
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Affiliation(s)
- Francesca Borrelli
- Department of Experimental Pharmacology, University of Naples Federico II, Via D. Montesano 49, 80131, Naples, Italy.
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