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van Rhee KP, Knibbe CAJ, van der Linden PD, Brüggemann RJM. Patients with Obesity Should be Recognised as a Special Patient Population During Drug Development of Antibacterial and Antifungal Agents; A Call to Action. Clin Pharmacokinet 2024; 63:1-12. [PMID: 38180719 PMCID: PMC10786732 DOI: 10.1007/s40262-023-01332-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2023] [Indexed: 01/06/2024]
Abstract
Individuals with obesity are at increased risk of developing infectious diseases. Timely administration of an effective dose of an antimicrobial agent is paramount to safeguard optimal therapy. For this purpose, special patient populations at risk for altered exposure such as renal or hepatic impairment are studied during drug development. Strikingly, there is no such evaluation in individuals with obesity despite a potential influence on exposure and a global obesity prevalence of 13 %. Optimal clinical decision making in patients with obesity is impossible without prior study of the drug of interest in this population. This statement is strengthened by an evaluation of 19 antimicrobial agents that showed tremendous variability in the influence of weight on clearance. In contrast to patient with renal or hepatic impairment who are mainly at risk of overexposure, individuals with obesity can be at risk of both under- and overexposure. Gaining knowledge on the influence of body weight on clearance during early phases of drug development may allow for optimisation of other phases of research, potentially increasing success rate of the drug, and can provide clinicians with vital information as soon as the drug reaches the market. Antimicrobial therapy should be tailored to obesity-related (patho)physiological changes and to reach this goal, obese individuals should be studied during drug development.
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Affiliation(s)
- K P van Rhee
- Department of Clinical Pharmacy Tergooi MC, Van Riebeeckweg 212, 1213 XZ, Hilversum, The Netherlands.
- Department of Clinical Pharmacy, St Jansdal Hospital, Wethouder Jansenlaan 90, 3844 DG, Harderwijk, The Netherlands.
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden, The Netherlands.
| | - C A J Knibbe
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden, The Netherlands
- Department of Clinical Pharmacy, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands
| | - P D van der Linden
- Department of Clinical Pharmacy Tergooi MC, Van Riebeeckweg 212, 1213 XZ, Hilversum, The Netherlands
| | - R J M Brüggemann
- Department of Pharmacy, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
- Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
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De Sutter PJ, De Cock P, Johnson TN, Musther H, Gasthuys E, Vermeulen A. Predictive Performance of Physiologically Based Pharmacokinetic Modelling of Beta-Lactam Antibiotic Concentrations in Adipose, Bone, and Muscle Tissues. Drug Metab Dispos 2023; 51:499-508. [PMID: 36639242 DOI: 10.1124/dmd.122.001129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
Physiologically based pharmacokinetic (PBPK) models consist of compartments representing different tissues. As most models are only verified based on plasma concentrations, it is unclear how reliable associated tissue profiles are. This study aimed to assess the accuracy of PBPK-predicted beta-lactam antibiotic concentrations in different tissues and assess the impact of using effect site concentrations for evaluation of target attainment. Adipose, bone, and muscle concentrations of five beta-lactams (piperacillin, cefazolin, cefuroxime, ceftazidime, and meropenem) in healthy adults were collected from literature and compared with PBPK predictions. Model performance was evaluated with average fold errors (AFEs) and absolute AFEs (AAFEs) between predicted and observed concentrations. In total, 26 studies were included, 14 of which reported total tissue concentrations and 12 unbound interstitial fluid (uISF) concentrations. Concurrent plasma concentrations, used as baseline verification of the models, were fairly accurate (AFE: 1.14, AAFE: 1.50). Predicted total tissue concentrations were less accurate (AFE: 0.68, AAFE: 1.89). A slight trend for underprediction was observed but none of the studies had AFE or AAFE values outside threefold. Similarly, predictions of microdialysis-derived uISF concentrations were less accurate than plasma concentration predictions (AFE: 1.52, AAFE: 2.32). uISF concentrations tended to be overpredicted and two studies had AFEs and AAFEs outside threefold. Pharmacodynamic simulations in our case showed only a limited impact of using uISF concentrations instead of unbound plasma concentrations on target attainment rates. The results of this study illustrate the limitations of current PBPK models to predict tissue concentrations and the associated need for more accurate models. SIGNIFICANCE STATEMENT: Clinical inaccessibility of local effect site concentrations precipitates a need for predictive methods for the estimation of tissue concentrations. This is the first study in which the accuracy of PBPK-predicted tissue concentrations of beta-lactam antibiotics in humans were assessed. Predicted tissue concentrations were found to be less accurate than concurrent predicted plasma concentrations. When using PBPK models to predict tissue concentrations, this potential relative loss of accuracy should be acknowledged when clinical tissue concentrations are unavailable to verify predictions.
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Affiliation(s)
- Pieter-Jan De Sutter
- Laboratory of Medical Biochemistry and Clinical Analysis, Department of Bioanalysis, Faculty of Pharmaceutical Sciences (P-J.DS., E.G., A.V.), Department of Basic and Applied Medical Science, Faculty of Medicine and Health Sciences (P.D-C), Ghent University, Ghent, Belgium; Department of Pharmacy and Department of Pediatric Intensive Care, Ghent University Hospital, Ghent, Belgium (P.D-C.); and Certara UK Limited, Sheffield, United Kingdom (T.N.J., H.M.)
| | - Pieter De Cock
- Laboratory of Medical Biochemistry and Clinical Analysis, Department of Bioanalysis, Faculty of Pharmaceutical Sciences (P-J.DS., E.G., A.V.), Department of Basic and Applied Medical Science, Faculty of Medicine and Health Sciences (P.D-C), Ghent University, Ghent, Belgium; Department of Pharmacy and Department of Pediatric Intensive Care, Ghent University Hospital, Ghent, Belgium (P.D-C.); and Certara UK Limited, Sheffield, United Kingdom (T.N.J., H.M.)
| | - Trevor N Johnson
- Laboratory of Medical Biochemistry and Clinical Analysis, Department of Bioanalysis, Faculty of Pharmaceutical Sciences (P-J.DS., E.G., A.V.), Department of Basic and Applied Medical Science, Faculty of Medicine and Health Sciences (P.D-C), Ghent University, Ghent, Belgium; Department of Pharmacy and Department of Pediatric Intensive Care, Ghent University Hospital, Ghent, Belgium (P.D-C.); and Certara UK Limited, Sheffield, United Kingdom (T.N.J., H.M.)
| | - Helen Musther
- Laboratory of Medical Biochemistry and Clinical Analysis, Department of Bioanalysis, Faculty of Pharmaceutical Sciences (P-J.DS., E.G., A.V.), Department of Basic and Applied Medical Science, Faculty of Medicine and Health Sciences (P.D-C), Ghent University, Ghent, Belgium; Department of Pharmacy and Department of Pediatric Intensive Care, Ghent University Hospital, Ghent, Belgium (P.D-C.); and Certara UK Limited, Sheffield, United Kingdom (T.N.J., H.M.)
| | - Elke Gasthuys
- Laboratory of Medical Biochemistry and Clinical Analysis, Department of Bioanalysis, Faculty of Pharmaceutical Sciences (P-J.DS., E.G., A.V.), Department of Basic and Applied Medical Science, Faculty of Medicine and Health Sciences (P.D-C), Ghent University, Ghent, Belgium; Department of Pharmacy and Department of Pediatric Intensive Care, Ghent University Hospital, Ghent, Belgium (P.D-C.); and Certara UK Limited, Sheffield, United Kingdom (T.N.J., H.M.)
| | - An Vermeulen
- Laboratory of Medical Biochemistry and Clinical Analysis, Department of Bioanalysis, Faculty of Pharmaceutical Sciences (P-J.DS., E.G., A.V.), Department of Basic and Applied Medical Science, Faculty of Medicine and Health Sciences (P.D-C), Ghent University, Ghent, Belgium; Department of Pharmacy and Department of Pediatric Intensive Care, Ghent University Hospital, Ghent, Belgium (P.D-C.); and Certara UK Limited, Sheffield, United Kingdom (T.N.J., H.M.)
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Wang Q, Zheng Y, Liu L, Ji P, Jiang W, Zhao J, Ren J, Yang L. Simultaneous Determination of Ceftazidime and Avibactam in Human Plasma and Cerebrospinal Fluid by High-Performance Liquid Chromatography – Tandem Mass Spectrometry (HPLC-MS/MS). ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2105859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Qinhui Wang
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
| | - Yao Zheng
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
| | - Linna Liu
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
| | - Peigang Ji
- Department of Thoracic Surgery, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
| | - Wei Jiang
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
| | - Jun Zhao
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
| | - Jing Ren
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
| | - Le Yang
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi’an, China
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Tait JR, Bilal H, Rogers KE, Lang Y, Kim TH, Zhou J, Wallis SC, Bulitta JB, Kirkpatrick CMJ, Paterson DL, Lipman J, Bergen PJ, Roberts JA, Nation RL, Landersdorfer CB. Effect of Different Piperacillin-Tazobactam Dosage Regimens on Synergy of the Combination with Tobramycin against Pseudomonas aeruginosa for the Pharmacokinetics of Critically Ill Patients in a Dynamic Infection Model. Antibiotics (Basel) 2022; 11:antibiotics11010101. [PMID: 35052977 PMCID: PMC8772788 DOI: 10.3390/antibiotics11010101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/05/2022] [Accepted: 01/11/2022] [Indexed: 12/10/2022] Open
Abstract
We evaluated piperacillin-tazobactam and tobramycin regimens against Pseudomonas aeruginosa isolates from critically ill patients. Static-concentration time-kill studies (SCTK) assessed piperacillin-tazobactam and tobramycin monotherapies and combinations against four isolates over 72 h. A 120 h-dynamic in vitro infection model (IVM) investigated isolates Pa1281 (MICpiperacillin 4 mg/L, MICtobramycin 0.5 mg/L) and CR380 (MICpiperacillin 32 mg/L, MICtobramycin 1 mg/L), simulating the pharmacokinetics of: (A) tobramycin 7 mg/kg q24 h (0.5 h-infusions, t1/2 = 3.1 h); (B) piperacillin 4 g q4 h (0.5 h-infusions, t1/2 = 1.5 h); (C) piperacillin 24 g/day, continuous infusion; A + B; A + C. Total and less-susceptible bacteria were determined. SCTK demonstrated synergy of the combination for all isolates. In the IVM, regimens A and B provided initial killing, followed by extensive regrowth by 72 h for both isolates. C provided >4 log10 CFU/mL killing, followed by regrowth close to initial inoculum by 96 h for Pa1281, and suppressed growth to <4 log10 CFU/mL for CR380. A and A + B initially suppressed counts of both isolates to <1 log10 CFU/mL, before regrowth to control or starting inoculum and resistance emergence by 72 h. Overall, the combination including intermittent piperacillin-tazobactam did not provide a benefit over tobramycin monotherapy. A + C, the combination regimen with continuous infusion of piperacillin-tazobactam, provided synergistic killing (counts <1 log10 CFU/mL) of Pa1281 and CR380, and suppressed regrowth to <2 and <4 log10 CFU/mL, respectively, and resistance emergence over 120 h. The shape of the concentration–time curve was important for synergy of the combination.
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Affiliation(s)
- Jessica R. Tait
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; (J.R.T.); (K.E.R.); (R.L.N.)
| | - Hajira Bilal
- Centre for Medicine Use and Safety, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; (H.B.); (C.M.J.K.); (P.J.B.)
| | - Kate E. Rogers
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; (J.R.T.); (K.E.R.); (R.L.N.)
| | - Yinzhi Lang
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Orlando, FL 32827, USA; (Y.L.); (J.Z.); (J.B.B.)
| | - Tae-Hwan Kim
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Korea;
| | - Jieqiang Zhou
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Orlando, FL 32827, USA; (Y.L.); (J.Z.); (J.B.B.)
| | - Steven C. Wallis
- The University of Queensland Center for Clinical Research, The University of Queensland, Brisbane, QLD 4029, Australia; (S.C.W.); (D.L.P.); (J.L.); (J.A.R.)
| | - Jürgen B. Bulitta
- Department of Pharmacotherapy and Translational Research, College of Pharmacy, University of Florida, Orlando, FL 32827, USA; (Y.L.); (J.Z.); (J.B.B.)
| | - Carl M. J. Kirkpatrick
- Centre for Medicine Use and Safety, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; (H.B.); (C.M.J.K.); (P.J.B.)
| | - David L. Paterson
- The University of Queensland Center for Clinical Research, The University of Queensland, Brisbane, QLD 4029, Australia; (S.C.W.); (D.L.P.); (J.L.); (J.A.R.)
| | - Jeffrey Lipman
- The University of Queensland Center for Clinical Research, The University of Queensland, Brisbane, QLD 4029, Australia; (S.C.W.); (D.L.P.); (J.L.); (J.A.R.)
- Intensive Care Unit, Royal Brisbane and Women’s Hospital, Brisbane, QLD 4029, Australia
- Division of Anaesthesiology Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, 30900 Nîmes, France
- Jamieson Trauma Institute, Royal Brisbane and Women’s Hospital, Brisbane, QLD 4029, Australia
| | - Phillip J. Bergen
- Centre for Medicine Use and Safety, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; (H.B.); (C.M.J.K.); (P.J.B.)
| | - Jason A. Roberts
- The University of Queensland Center for Clinical Research, The University of Queensland, Brisbane, QLD 4029, Australia; (S.C.W.); (D.L.P.); (J.L.); (J.A.R.)
- Intensive Care Unit, Royal Brisbane and Women’s Hospital, Brisbane, QLD 4029, Australia
- Division of Anaesthesiology Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, 30900 Nîmes, France
| | - Roger L. Nation
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; (J.R.T.); (K.E.R.); (R.L.N.)
| | - Cornelia B. Landersdorfer
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; (J.R.T.); (K.E.R.); (R.L.N.)
- Correspondence: ; Tel.: +61-3-990-39011
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