1
|
Dinçel S, Demirpolat E. Evaluation of the appropriateness of vancomycin therapeutic drug monitoring in the intensive care unit with a clinical pharmacy approach, a cross-sectional study. Eur J Hosp Pharm 2024:ejhpharm-2023-004073. [PMID: 38834285 DOI: 10.1136/ejhpharm-2023-004073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 05/28/2024] [Indexed: 06/06/2024] Open
Abstract
OBJECTIVES Vancomycin, a glycopeptide antibiotic has antibacterial activity against Gram-positive bacteria and is frequently used in the intensive care unit (ICU). Inappropriate therapeutic drug monitoring (TDM) of vancomycin is a common problem encountered in hospital daily practice. The aim of this study was to evaluate the appropriateness of vancomycin trough-guided TDM in patients treated in the ICU using a clinical pharmacy approach. METHODS The study was conducted retrospectively in patients over 18 years old who had at least one vancomycin trough level and who had received intravenous (IV) vancomycin for ≥3 days between 1 November 2020 and 1 April 2022. The study included 137 patients. Patient demographics and relevant vancomycin TDM data were collected from medical records. The appropriateness of TDM was evaluated according to the criteria established based on the monitoring recommendations specified in consensus guidelines for therapeutic drug monitoring of vancomycin published by the American Society of Health-System Pharmacists (ASHP) in 2009 and 2020. RESULTS Of a total of 238 vancomycin trough levels measured in patients, 32.4% were collected at an inappropriate time. When patients were evaluated in terms of TDM appropriateness according to vancomycin level ranges (<10 µg/mL, 10-20 µg/mL and >20 µg/mL), we found the appropriate TDM was significantly higher in the therapeutic range (10-20 µg/mL) (p <0.001). Of the total 238 vancomycin trough concentrations taken from patients, 77 (32.4%) were measured at an inappropriate time. This caused dose withholding, wrong adjustments and therapy failure. The total TDM appropriateness of vancomycin was significantly higher in the therapeutic range defined as 10-20 µg/mL when evaluated based on 'TDM appropriateness criteria' (p <0.001). CONCLUSION Our study shows that appropriate vancomycin TDM increases the likelihood of achieving target trough concentrations. Involvement of clinical pharmacists in TDM management may prevent the development of adverse reactions by ensuring appropriate sampling time and appropriate interpretation of vancomycin levels.
Collapse
Affiliation(s)
- Sema Dinçel
- Clinical Pharmacy Department, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Eren Demirpolat
- Clinical Pharmacy Department, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
- Pharmacology Department, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| |
Collapse
|
2
|
Cervantes FC, Mizuno T, Dong M, Tang P, Arbough T, Vinks AA, Kaplan JM, Girdwood SCT. Ceftriaxone Pharmacokinetics and Pharmacodynamics in 2 Pediatric Patients on Extracorporeal Membrane Oxygenation Therapy. Ther Drug Monit 2023; 45:832-836. [PMID: 37725684 PMCID: PMC10840633 DOI: 10.1097/ftd.0000000000001133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/13/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Critically ill patients with cardiac or respiratory failure may require extracorporeal membrane oxygenation (ECMO). Antibiotics are frequently administered when the suspected cause of organ failure is an infection. Ceftriaxone, a β-lactam antibiotic, is commonly used in patients who are critically ill. Although studies in adults on ECMO have suggested minimal impact on ceftriaxone pharmacokinetics, limited research exists on ceftriaxone pharmacokinetics/pharmacodynamics (PK/PD) in pediatric ECMO patients. We report the PK profiles and target attainment of 2 pediatric patients on ECMO who received ceftriaxone. METHODS Ceftriaxone concentrations were measured in 2 pediatric patients on ECMO using scavenged opportunistic sampling. PK profiles were generated and individual PK parameters were estimated using measured free ceftriaxone concentrations and a published population PK model in children who are critically ill, using Bayesian estimation. RESULTS Patient 1, an 11-year-old boy on venovenous ECMO for respiratory failure received 2 doses of 52 mg/kg ceftriaxone 12 hours apart while on ECMO and additional doses every 12 hours off ECMO. On ECMO, ceftriaxone clearance was 13.0 L/h/70 kg compared with 7.6 L/h/70 kg off ECMO, whereas the model-predicted mean clearance in children who are critically ill without ECMO support was 6.54 L/h/70 kg. Patient 2, a 2-year-old boy on venoarterial ECMO due to cardiac arrest received 50 mg/kg ceftriaxone every 12 hours while on ECMO for >7 days. Only clearance while on ECMO could be estimated (9.1 L/h/70 kg). Trough concentrations in both patients were >1 mg/L (the breakpoint for Streptococcus pneumoniae ) while on ECMO. CONCLUSIONS ECMO increased ceftriaxone clearance above the model-predicted clearances in the 2 pediatric patients studied. Twelve-hour dosing allowed concentrations to remain above the breakpoint for commonly targeted bacteria but not 4 times the breakpoint in one patient, suggesting that precision dosing may be beneficial to ensure target attainment in children on ECMO.
Collapse
Affiliation(s)
- Francisco C. Cervantes
- Department of Medical Education, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
| | - Tomoyuki Mizuno
- Department of Pediatrics, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45220, United States of America
| | - Min Dong
- Department of Pediatrics, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45220, United States of America
| | - Peter Tang
- Department of Pediatrics, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
- Division of Pathology, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45220, United States of America
| | - Trent Arbough
- Department of Medical Education, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
| | - Alexander A. Vinks
- Department of Pediatrics, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45220, United States of America
| | - Jennifer M. Kaplan
- Department of Pediatrics, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45220, United States of America
| | - Sonya C. Tang Girdwood
- Department of Pediatrics, University of Cincinnati College of Medicine, 320 Eden Avenue, Cincinnati, OH, 45267, United States of America
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45220, United States of America
- Division of Hospital Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45220, United States of America
| |
Collapse
|
3
|
Nelson NR, Mendoza C, Rhoney DH. Augmented Renal Clearance in the Hematology and Oncology Populations: A Scoping Review for Pharmacists. J Pharm Pract 2023; 36:1485-1497. [PMID: 35972988 DOI: 10.1177/08971900221121362] [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] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Until recently, interest in renal function has focused on impairment to limit drug toxicity and increase medication safety. Augmented renal clearance (ARC) has been increasingly studied in multiple patient populations, including oncology, and could lead to decreased drug efficacy from faster elimination resulting in subtherapeutic concentrations. This scoping review sought to summarize ARC literature in cancer and identify areas of research to better inform pharmacy practitioners. DATA SOURCES Electronic databases were searched for English articles related to augmented/enhanced renal function/clearance following a framework for scoping reviews. DATA SYNTHESIS Fourteen articles were analyzed, divided according to article objective: descriptive studies or ARC's impact on pharmacokinetics/pharmacodynamics. ARC was most defined as creatinine clearance >130 mL/min/1.73 m2, reported in 10%-100% of patients. Febrile neutropenia in adult and pediatric patients, and age <50-65 years, hematologic malignancy, and lower serum creatinine in adult patients were notable risk factors for ARC. The impact of ARC has only been evaluated with antimicrobial agents consistently resulting in lower than anticipated trough levels. Identified gaps include: elucidation of ARC's mechanism and associated biomarkers, an inclusive ARC definition for relative renal enhancement, and study of additional drug classes to ascertain the breadth of ARC impact on drug therapy. CONCLUSIONS ARC is proving to be a frequent phenomenon in patients with cancer which pharmacists could play a vital role. Further research is needed to better understand the impact of ARC in patient care and a potential need to stage ARC based on degree of renal enhancement to establish specific drug dosing recommendations.
Collapse
Affiliation(s)
- Nicholas R Nelson
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, Chapel Hill, NC, USA
| | - Chelsea Mendoza
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Denise H Rhoney
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, Chapel Hill, NC, USA
| |
Collapse
|
4
|
Monti G, Bradić N, Marzaroli M, Konkayev A, Fominskiy E, Kotani Y, Likhvantsev VV, Momesso E, Nogtev P, Lobreglio R, Redkin I, Toffoletto F, Bruni A, Baiardo Redaelli M, D’Andrea N, Paternoster G, Scandroglio AM, Gallicchio F, Ballestra M, Calabrò MG, Cotoia A, Perone R, Cuffaro R, Montrucchio G, Pota V, Ananiadou S, Lembo R, Musu M, Rauch S, Galbiati C, Pinelli F, Pasin L, Guarracino F, Santarpino G, Agrò FE, Bove T, Corradi F, Forfori F, Longhini F, Cecconi M, Landoni G, Bellomo R, Zangrillo A. Continuous vs Intermittent Meropenem Administration in Critically Ill Patients With Sepsis: The MERCY Randomized Clinical Trial. JAMA 2023; 330:141-151. [PMID: 37326473 PMCID: PMC10276329 DOI: 10.1001/jama.2023.10598] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
Importance Meropenem is a widely prescribed β-lactam antibiotic. Meropenem exhibits maximum pharmacodynamic efficacy when given by continuous infusion to deliver constant drug levels above the minimal inhibitory concentration. Compared with intermittent administration, continuous administration of meropenem may improve clinical outcomes. Objective To determine whether continuous administration of meropenem reduces a composite of mortality and emergence of pandrug-resistant or extensively drug-resistant bacteria compared with intermittent administration in critically ill patients with sepsis. Design, Setting, and Participants A double-blind, randomized clinical trial enrolling critically ill patients with sepsis or septic shock who had been prescribed meropenem by their treating clinicians at 31 intensive care units of 26 hospitals in 4 countries (Croatia, Italy, Kazakhstan, and Russia). Patients were enrolled between June 5, 2018, and August 9, 2022, and the final 90-day follow-up was completed in November 2022. Interventions Patients were randomized to receive an equal dose of the antibiotic meropenem by either continuous administration (n = 303) or intermittent administration (n = 304). Main Outcomes and Measures The primary outcome was a composite of all-cause mortality and emergence of pandrug-resistant or extensively drug-resistant bacteria at day 28. There were 4 secondary outcomes, including days alive and free from antibiotics at day 28, days alive and free from the intensive care unit at day 28, and all-cause mortality at day 90. Seizures, allergic reactions, and mortality were recorded as adverse events. Results All 607 patients (mean age, 64 [SD, 15] years; 203 were women [33%]) were included in the measurement of the 28-day primary outcome and completed the 90-day mortality follow-up. The majority (369 patients, 61%) had septic shock. The median time from hospital admission to randomization was 9 days (IQR, 3-17 days) and the median duration of meropenem therapy was 11 days (IQR, 6-17 days). Only 1 crossover event was recorded. The primary outcome occurred in 142 patients (47%) in the continuous administration group and in 149 patients (49%) in the intermittent administration group (relative risk, 0.96 [95% CI, 0.81-1.13], P = .60). Of the 4 secondary outcomes, none was statistically significant. No adverse events of seizures or allergic reactions related to the study drug were reported. At 90 days, mortality was 42% both in the continuous administration group (127 of 303 patients) and in the intermittent administration group (127 of 304 patients). Conclusions and Relevance In critically ill patients with sepsis, compared with intermittent administration, the continuous administration of meropenem did not improve the composite outcome of mortality and emergence of pandrug-resistant or extensively drug-resistant bacteria at day 28. Trial Registration ClinicalTrials.gov Identifier: NCT03452839.
Collapse
Affiliation(s)
- Giacomo Monti
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Nikola Bradić
- Clinical Department of Anesthesiology, Resuscitation and Intensive Medicine, University Hospital Dubrava, Zagreb, Croatia
- University North, Varazdin, Croatia
| | - Matteo Marzaroli
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Aidos Konkayev
- National Scientific Center of Traumatology and Orthopedia named acad NBatpenov, Astana Medical University, Astana, Kazakhstan
| | - Evgeny Fominskiy
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Yuki Kotani
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
- Kameda Medical Center, Kamogawa, Japan
| | | | - Elena Momesso
- UOC Anestesia Rianimazione Ospedale San Donà di Piave, San Donà di Piave, Italy
| | - Pavel Nogtev
- I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Rosetta Lobreglio
- Department of Anesthesia, Intensive Care and Emergency, Citta della Salute e della Scienza University Hospital, Turin, Italy
| | - Ivan Redkin
- Federal Research and Clinical Center of Resuscitation and Rehabilitation, Moscow, Russia
| | - Fabio Toffoletto
- UOC Anestesia Rianimazione Ospedale San Donà di Piave, San Donà di Piave, Italy
| | - Andrea Bruni
- Anesthesia and Intensive Care, Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Martina Baiardo Redaelli
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Natascia D’Andrea
- Department of Anesthesia and Intensive Care Medicine, ASUFC University Hospital of Udine, Udine, Italy
| | | | - Anna Mara Scandroglio
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | | | - Maria Grazia Calabrò
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Romina Perone
- Department of Cardio Thoracic and Vascular Surgery, Pineta Grande Hospital, Pineta Grande, Italy
| | - Raffaele Cuffaro
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giorgia Montrucchio
- Department of Anesthesia, Intensive Care and Emergency, Citta della Salute e della Scienza University Hospital, Turin, Italy
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Vincenzo Pota
- Università della Campania L. Vanvitelli, Napoli, Italy
| | | | - Rosalba Lembo
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Mario Musu
- Dipartimento di Scienze Mediche e Sanità Pubblica, Università degli Studi di Cagliari, Cagliari, Italy
- Azienda Ospedaliero Universitaria di Cagliari, Cagliari, Italy
| | - Simon Rauch
- Department of Anaesthesiology and Intensive Care Medicine, Hospital of Merano, Merano, Italy
| | - Carola Galbiati
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fulvio Pinelli
- Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Laura Pasin
- Azienda Ospedale Università Padova, Padua, Italy
| | - Fabio Guarracino
- Dipartimento Anestesia e Rianimazione, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Giuseppe Santarpino
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
- GVM Care and Research, Department of Cardiac Surgery, Città di Lecce Hospital, Lecce, Italy
- Department of Cardiac Surgery, Paracelsus Medical University, Nuremberg, Germany
| | - Felice Eugenio Agrò
- Research Unit of Anesthesia and Intensive Care, Department of Medicine and Surgery, Università Campus Bio-Medico, Rome, Italy
- Operative Research Unit of Anesthesia and Intensive Care, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Tiziana Bove
- Department of Anesthesia and Intensive Care Medicine, ASUFC University Hospital of Udine, Udine, Italy
- Department of Medicine, University of Udine, Udine, Italy
| | - Francesco Corradi
- Department of Surgical, Medical, Molecular Pathology, and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Francesco Forfori
- Department of Surgical, Medical, Molecular Pathology, and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Federico Longhini
- Anesthesia and Intensive Care, Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Maurizio Cecconi
- Department of Biomedical Sciences, Humanitas University Pieve Emanuele, Milan, Italy
- Department of Anaesthesia and Intensive Care, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Giovanni Landoni
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Rinaldo Bellomo
- Department of Critical Care, University of Melbourne, Melbourne, Australia
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Australia
| | - Alberto Zangrillo
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| |
Collapse
|
5
|
Tang Girdwood S, Tang P, Fenchel M, Dong M, Stoneman E, Jones R, Ostermeier A, Curry C, Forton M, Hail T, Mullaney R, Diseroad E, Punt N, Kaplan J, Vinks AA. Pharmacokinetic parameters over time during sepsis and the association of target attainment and outcomes in critically ill children and young adults receiving ceftriaxone. Pharmacotherapy 2023. [PMID: 36727212 PMCID: PMC10363190 DOI: 10.1002/phar.2774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/16/2022] [Accepted: 01/21/2023] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Early sepsis results in pharmacokinetic (PK) changes due to physiologic alterations. PK changes can lead to suboptimal drug target attainment, risking inadequate coverage from antibiotics like ceftriaxone. Little is known about how ceftriaxone PK and target attainment quantitatively change over time in patients with sepsis or the association between target attainment and outcomes in critically ill children and young adults. METHODS A retrospective analysis of a prospective study was conducted in a single-center pediatric intensive care unit. Septic patients given at least one ceftriaxone dose (commonly as 50 mg/kg every 12 h) and who had blood obtained in both the first 48 h of therapy (early) and afterwards (late) were included. Normalized clearance and central volume were estimated and compared in both sepsis phases. We evaluated target attainment, defined as concentrations above 1× or 4× the minimum inhibitory concentration (MIC) for 100% of dosing intervals, and investigated the association between target attainment and clinical outcomes. RESULTS Fifty-five septic patients (median age: 7.5 years) were included. Normalized clearance and central volume were similar in both phases (6.18 ± 1.48 L/h/70 kg early vs. 6.10 ± 1.61 L/h/70 kg late, p = 0.60; 26.6 [IQR 22.3, 31.3] L/70 kg early vs. 24.5 [IQR 22.0, 29.4] L/70 kg late, p = 0.18). Individual percent differences in normalized clearance and central volume between sepsis phases ranged from -39% to 276% and -51% to 212% (reference, late sepsis), respectively. Fewer patients attained the 1× MIC target in late sepsis (82% late vs. 96% early, p = 0.013), which was associated with transition to once daily dosing, typically done due to transfer from the pediatric intensive care unit (PICU) to a lower acuity unit. Failure to attain either target in late sepsis was associated with antibiotic broadening. CONCLUSION Ceftriaxone PK parameters were similar between early and late sepsis, but there were large individual differences. Fewer patients attained MIC targets in late sepsis and all who did not attain the less stringent target received once daily dosing during this period. The failure to attain targets in late sepsis was associated with antibiotic broadening and could be an area for antibiotic stewardship intervention.
Collapse
Affiliation(s)
- Sonya Tang Girdwood
- Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Clinical Pharmacology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Peter Tang
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Pathology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Matthew Fenchel
- Division of Biostatistics and Epidemiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Min Dong
- Division of Clinical Pharmacology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Erin Stoneman
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Rhonda Jones
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Austin Ostermeier
- Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Calise Curry
- Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Melissa Forton
- Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Traci Hail
- Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Randi Mullaney
- Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Emily Diseroad
- Department of Pharmacy, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Nieko Punt
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.,Medimatics, Maastricht, The Netherlands
| | - Jennifer Kaplan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Alexander A Vinks
- Division of Clinical Pharmacology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| |
Collapse
|
6
|
Tang Girdwood S, Pavia K, Paice K, Hambrick HR, Kaplan J, Vinks AA. β-lactam precision dosing in critically ill children: Current state and knowledge gaps. Front Pharmacol 2022; 13:1044683. [PMID: 36532752 PMCID: PMC9752101 DOI: 10.3389/fphar.2022.1044683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022] Open
Abstract
There has been emerging interest in implementing therapeutic drug monitoring and model-informed precision dosing of β-lactam antibiotics in critically ill patients, including children. Despite a position paper endorsed by multiple international societies that support these efforts in critically ill adults, implementation of β-lactam precision dosing has not been widely adopted. In this review, we highlight what is known about β-lactam antibiotic pharmacokinetics and pharmacodynamics in critically ill children. We also define the knowledge gaps that present barriers to acceptance and implementation of precision dosing of β-lactam antibiotics in critically ill children: a lack of consensus on which subpopulations would benefit most from precision dosing and the uncertainty of how precision dosing changes outcomes. We conclude with opportunities for further research to close these knowledge gaps.
Collapse
Affiliation(s)
- Sonya Tang Girdwood
- Division of Clinical Pharmacology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Division of Hospital Medicine, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,*Correspondence: Sonya Tang Girdwood,
| | - Kathryn Pavia
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Kelli Paice
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - H. Rhodes Hambrick
- Division of Nephrology and Hypertension, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Jennifer Kaplan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Alexander A. Vinks
- Division of Clinical Pharmacology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| |
Collapse
|
7
|
Bergin SP, Calvert SB, Farley J, Sun JL, Chiswell K, Dieperink W, Kluytmans J, Lopez-Delgado JC, Leon-Lopez R, Zervos MJ, Kollef MH, Sims M, Kabchi BA, Rubin D, Santiago J, Natarajan M, Tenaerts P, Fowler VG, Holland TL, Bonten MJ, Hullegie SJ. PROPHETIC EU: Prospective Identification of Pneumonia in Hospitalized Patients in the Intensive Care Unit in European and United States Cohorts. Open Forum Infect Dis 2022; 9:ofac231. [PMID: 35836748 PMCID: PMC9274438 DOI: 10.1093/ofid/ofac231] [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: 01/18/2022] [Accepted: 05/06/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The prospective identification of patients at high risk for hospital-acquired/ventilator-associated bacterial pneumonia may improve clinical trial feasibility and foster antibacterial development. In a prior study conducted in the United States, clinical criteria were used to prospectively identify these patients; however, these criteria have not been applied in a European population.
Methods
Adults considered high risk for pneumonia (treatment with ventilation or high levels of supplemental oxygen) in the intensive care units of seven European hospitals were prospectively enrolled from June 12-December 27, 2017. We estimated the proportion of high-risk patients developing pneumonia according to United States Food and Drug Administration guidance and a subset potentially eligible for antibacterial trial enrollment. We compared patient characteristics, treatment exposures, and pneumonia incidence in the European and previously described United States cohorts.
Results
Of 888 high-risk patients, 211/888 (24%) were treated for possible pneumonia and 150/888 (17%) met the Food and Drug Administration definition for hospital-acquired/ventilator-associated bacterial pneumonia. A higher proportion of European patients treated for possible pneumonia met the pneumonia definition (150/211 [71%] versus 537/1464 [37%], p<0.001). Among patients developing pneumonia, a higher proportion of European patients met antibacterial trial eligibility criteria (124/150 [83%] versus 371/537 [69%], p<0.001).
Conclusions
Clinical criteria prospectively identified high-risk patients with high rates of pneumonia in the European cohort. Despite higher rates of established risk factors and incident pneumonia, European patients were significantly less likely to receive antibiotics for possible pneumonia than United States patients. Different treatment practices may contribute to lower rates of antibacterial trial enrollment in the United States.
Collapse
Affiliation(s)
| | | | - John Farley
- U.S. Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, MD, USA
| | - Jie-Lena Sun
- Duke Clinical Research Institute, Durham, NC, USA
| | | | | | | | | | - Rafael Leon-Lopez
- Reina Sofía University Hospital/University of Córdoba, Córdoba, Spain
| | | | - Marin H. Kollef
- Washington University School of Medicine, St Louis, Missouri, USA
| | | | | | - Daniel Rubin
- U.S. Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, MD, USA
| | - Jonas Santiago
- U.S. Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, MD, USA
| | - Mukil Natarajan
- U.S. Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, MD, USA
| | | | - Vance G. Fowler
- Duke University, Durham, NC, USA
- Duke Clinical Research Institute, Durham, NC, USA
| | - Thomas L. Holland
- Duke University, Durham, NC, USA
- Duke Clinical Research Institute, Durham, NC, USA
| | - Marc J. Bonten
- University Medical Center Utrecht, Utrecht, the Netherlands
| | | |
Collapse
|
8
|
Mao W, Lu D, Zhou J, Zhen J, Yan J, Li L. Chinese ICU physicians' knowledge of antibiotic pharmacokinetics/pharmacodynamics (PK/PD): a cross-sectional survey. BMC MEDICAL EDUCATION 2022; 22:173. [PMID: 35287666 PMCID: PMC8920424 DOI: 10.1186/s12909-022-03234-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Patients with sepsis have a high mortality rate, accumulated evidences suggest that an optimal antibiotic administration strategy based on pharmacokinetics/pharmacodynamics (PK/PD) can improve the prognosis of septic patients. Therefore, we assessed Chinese intensive care unit (ICU) physicians' knowledge about PK/PD. METHODS In December 2019, we designed a questionnaire focused on Chinese ICU physicians' knowledge about PK/PD and collected the questionnaires after 3 months. The questionnaire was distributed via e-mail and WeChat, and was distributed to ICU doctors in 31 administrative regions of China except Hong Kong, Macao and Taiwan. The passing score was corrected by the Angoff method, and the ICU physicians' knowledge about PK/PD was analysed accordingly. RESULTS We received a total of 1,309 questionnaires and retained 1,240 valid questionnaires. The passing score was 90.8, and the overall pass rate was 56.94%. The pass rate for tertiary and secondary hospitals was 59.07% and 37.19%, respectively. ICU physicians with less than 5 years of work experience and resident physician accounted for the highest pass rate, while those with between 5 to 10 years of work experience and attending accounted for the lowest pass rate. The majority of participants in the Chinese Critical Care Certified Course (5C) were from Jiangsu and Henan provinces, and they had the highest average scores (125.8 and 126.5, respectively). For Beijing and Shanghai, the average score was only 79.4 and 90.9, respectively. CONCLUSIONS Chinese ICU physicians' knowledge about PK/PD is unsatisfactory. Therefore, it is essential to strengthen ICU physicians' knowledge about PK/PD.
Collapse
Affiliation(s)
- Wenchao Mao
- Department of Critical Care Medicine, Zhejiang Hospital, Hangzhou, 310013, China
| | - Difan Lu
- The First Affiliated Hospital of Zhejiang University, Hangzhou, 310003, Zhejiang, China
| | - Jia Zhou
- Department of Critical Care Medicine, Zhejiang Hospital, Hangzhou, 310013, China
| | - Junhai Zhen
- Department of Critical Care Medicine, Zhejiang Hospital, Hangzhou, 310013, China
| | - Jing Yan
- Department of Critical Care Medicine, Zhejiang Hospital, Hangzhou, 310013, China.
| | - Li Li
- Department of Critical Care Medicine, Zhejiang Hospital, Hangzhou, 310013, China.
| |
Collapse
|
9
|
Al Sulaiman K, Alshaya A, Aljuhani O, Alsaeed A, Alshehri N, Vishwakarma R, Alzahrani H, Althewaibi S, Alghamdi N, Alhelal K, Alharbi A, Al Harbi S. The impact of early target attainment of vancomycin in critically ill patients with confirmed Gram-positive infection: A retrospective cohort study. BMC Infect Dis 2021; 21:1182. [PMID: 34819023 PMCID: PMC8613993 DOI: 10.1186/s12879-021-06840-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/29/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Vancomycin is a commonly used antibiotic in critically ill patients for various indications. Critical illness imposes pharmacokinetic-pharmacodynamics challenges, which makes optimizing vancomycin in this population cumbersome. Data are scarce on the clinical impact of time to therapeutic trough levels of vancomycin in critically ill patients. This study aims to evaluate the timing to achieve therapeutic trough level of vancomycin on 30-day mortality in critically ill patients. METHOD A retrospective cohort study was conducted for all adult critically ill patients with confirmed Gram-positive infection who received IV vancomycin between January 1, 2017, and December 31, 2020. We compared early (< 48 h) versus late (≥ 48 h) attainment of vancomycin therapeutic trough levels. The primary outcome was the 30-day mortality in critically ill patients. Secondary outcomes were the development of resistant organisms, microorganisms eradication within 4-5 days of vancomycin initiation, acute kidney injury (AKI), and length of stay (LOS). Propensity score-matched (1:1 ratio) used based on patient's age, serum creatinine, and albumin values at baseline. RESULTS A total of 326 patients were included; 110 patients attained the therapeutic trough levels within 48 h of vancomycin initiation. Late achievement of the therapeutic trough levels was associated with higher 30-day mortality (HR: 2.54; 95% CI [1.24-5.22]; p = 0.01). Additionally, patients who achieved therapeutic trough levels of vancomycin late were more likely to develop AKI (OR = 2.59; 95% CI [1.01-6.65]; p = 0.04). Other outcomes were not statistically significant between the two groups. CONCLUSION Early achievement of vancomycin therapeutic levels in patients with confirmed Gram-positive infection was associated with possible survival benefits.
Collapse
Affiliation(s)
- Khalid Al Sulaiman
- Pharmaceutical Care Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia. .,College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. .,King Abdullah International Medical Research Center, Riyadh, Saudi Arabia. .,King Abdulaziz Medical City, King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
| | - Abdulrahman Alshaya
- Pharmaceutical Care Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia.,College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Ohoud Aljuhani
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Amjad Alsaeed
- College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Nadiyah Alshehri
- Pharmaceutical Care Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Ramesh Vishwakarma
- Statistics Department, European Organization for Research and Treatment of Cancer (EORTC) Headquarters, Brussels, Belgium
| | - Hamdan Alzahrani
- Microbiology Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Sara Althewaibi
- College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Nawaf Alghamdi
- College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Khalid Alhelal
- College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Aisha Alharbi
- Pharmaceutical Care Department, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Shmeylan Al Harbi
- Pharmaceutical Care Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia.,College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| |
Collapse
|
10
|
Shorr AF, Bruno CJ, Zhang Z, Jensen E, Gao W, Feng HP, Huntington JA, Yu B, Rhee EG, De Anda C, Basu S, Kollef MH. Ceftolozane/tazobactam probability of target attainment and outcomes in participants with augmented renal clearance from the randomized phase 3 ASPECT-NP trial. Crit Care 2021; 25:354. [PMID: 34600585 PMCID: PMC8487337 DOI: 10.1186/s13054-021-03773-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 09/16/2021] [Indexed: 11/11/2022] Open
Abstract
Background The randomized, double-blind, phase 3 ASPECT-NP trial evaluated the efficacy of 3 g of ceftolozane/tazobactam (C/T) versus 1 g of meropenem infused every 8 h for 8 to 14 days for treatment of adults with hospital-acquired bacterial pneumonia (HABP) or ventilator-associated bacterial pneumonia (VABP). We assessed the probability of target attainment and compared efficacy outcomes from ASPECT-NP in participants with augmented renal clearance (ARC) versus those with normal renal function. Methods Baseline renal function was categorized as normal renal function (creatinine clearance 80–130 mL/min) or ARC (creatinine clearance > 130 mL/min). Population pharmacokinetic models informed Monte Carlo simulations to assess probability of target attainment in plasma and pulmonary epithelial lining fluid. Outcomes included 28-day all-cause mortality and clinical cure and per-participant microbiologic cure rates at the test-of-cure visit. Results A > 99% and > 80% probability of target attainment was demonstrated for ceftolozane and tazobactam, respectively, in simulated plasma and epithelial lining fluid. Within treatment arms, 28-day all-cause mortality rates in participants with normal renal function (C/T, n = 131; meropenem, n = 123) and ARC (C/T, n = 96; meropenem, n = 113) were comparable (data comparisons presented as rate; treatment difference [95% CI]) (C/T: normal renal function, 17.6%; ARC, 17.7%; 0.2 [− 9.6 to 10.6]; meropenem: normal renal function, 20.3%; ARC, 17.7%; − 2.6 [− 12.6 to 7.5]). Clinical cure rates at test-of-cure were also comparable across renal function groups within treatment arms (C/T: normal renal function, 57.3%; ARC, 59.4%; − 2.1 [− 14.8 to 10.8]; meropenem: normal renal function, 59.3%; ARC, 57.5%; 1.8 [− 10.6 to 14.2]). Per-participant microbiologic cure rates at test-of-cure were consistent across renal function groups within treatment arms (C/T: normal renal function, 72.2% [n/N = 70/97]; ARC, 71.4% [n/N = 55/77]; 0.7 [− 12.4 to 14.2]; meropenem: normal renal function, 75.0% [n/N = 66/88]; ARC, 70.0% [n/N = 49/70]; 5.0 [− 8.7 to 19.0]). Conclusions C/T and meropenem resulted in 28-day all-cause mortality, clinical cure, and microbiologic cure rates that were comparable between participants with ARC or normal renal function. In conjunction with high probability of target attainment, these results confirm that C/T (3 g) every 8 h is appropriate in patients with HABP/VABP and ARC. Trial registration ClinicalTrials.gov identifier: NCT02070757, registered February 25, 2014; EudraCT: 2012-002862-11.
Collapse
Affiliation(s)
| | | | - Zufei Zhang
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | - Erin Jensen
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | - Wei Gao
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | - Hwa-Ping Feng
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | | | - Brian Yu
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | - Elizabeth G Rhee
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | - Carisa De Anda
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | - Sumit Basu
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA
| | - Marin H Kollef
- Washington University School of Medicine, St. Louis, MO, USA
| |
Collapse
|
11
|
Rhoney DH, Metzger SA, Nelson NR. Scoping review of augmented renal clearance in critically ill pediatric patients. Pharmacotherapy 2021; 41:851-863. [PMID: 34431121 DOI: 10.1002/phar.2617] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 11/06/2022]
Abstract
Augmented renal clearance (ARC), a phenomenon of enhanced elimination of renal solutes, has been described in adult critically ill patients, but little is known about the phenomenon in children. The aim of this scoping review was to gather and summarize all evidence on ARC in pediatric patients to examine its breadth and depth including prevalence, risk factors, and pharmacokinetic alterations and identify any gaps for further areas of inquiry. PubMed, Embase, and Web of Science were searched for titles, abstracts, or keywords that focused on ARC. Non-English studies, reviews, and nonhuman studies were excluded. Reporting followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Scoping Reviews (PRISMA-ScR) guidelines. Data were extracted on article type, study details, patient population, ARC definition and prevalence, methods of renal function assessment, and study results. A total of 215 citations were found with 25 citations meeting the criteria for inclusion in pediatrics (2102 total patients); the majority of studies (84%) focused on pharmacokinetics (PK) of antimicrobial agents. The median/mean age range was 1.25-12 years. There were a total of 10 different definitions of ARC. The prevalence of ARC ranged from 7.8% to 78%. The most common method for documenting creatinine clearance (CrCl) was the modified Schwartz equation (64%). Only 20% of studies reported risk factors for ARC including low serum creatinine, increasing age, febrile neutropenia, male, septic shock, and treatment with antibiotics. Glycopeptide antimicrobials were the most evaluated class (42.9%) among the 21 antimicrobial drug studies. All studies reported increased drug clearance and/or poor probability of achieving target concentrations of the agents studied. ARC showed variable prevalence in pediatric patients likely due to the lack of a standard definition and many studies not considering age-related changes in CrCl with pediatric intensive care unit (PICU) patients. ARC was shown to impact PK of antibiotics commonly administered to pediatric patients, which may necessitate changes in standard dosing regimens.
Collapse
Affiliation(s)
- Denise H Rhoney
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, Chapel Hill, North Carolina, USA
| | | | - Nicholas R Nelson
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, Chapel Hill, North Carolina, USA
| |
Collapse
|
12
|
Nicolau DP, De Waele J, Kuti JL, Caro L, Larson KB, Yu B, Gadzicki E, Zeng Z, Rhee EG, Rizk ML. Pharmacokinetics and Pharmacodynamics of Ceftolozane/Tazobactam in Critically Ill Patients With Augmented Renal Clearance. Int J Antimicrob Agents 2021; 57:106299. [PMID: 33567333 DOI: 10.1016/j.ijantimicag.2021.106299] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/21/2021] [Accepted: 01/30/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To determine whether established ceftolozane/tazobactam (C/T) dosing is adequate for patients with augmented renal clearance (ARC) and bacterial infection. METHODS ARC (creatinine clearance [CrCl] ≥ 130 mL/min) was confirmed by directly measured CrCl in 11 critically ill patients in a phase 1 pharmacokinetics study. Patients received 3 g C/T (ceftolozane 2 g/tazobactam 1 g) as a 60-minute intravenous infusion. Pharmacokinetic sampling occurred at 0 (predose), 1, 2, 4, 6, and 8 hours after the start of the infusion. Noncompartmental analyses were conducted on concentration data. The following pharmacodynamic targets were evaluated: time that free (unbound) drug concentrations exceeded the minimum inhibitory concentration (fT>MIC) of 4 μg/mL for ceftolozane and time that the unbound concentration exceeded the 1 μg/mL target threshold (fT>threshold = 1 µg/mL) for > 20% of the dosing interval for tazobactam. Safety was evaluated. RESULTS Mean (SD) area under the plasma concentration-time curve from 0 to infinity, clearance and volume of distribution at steady state (Vss) were 236 (118) h*µg/mL, 10.4 (4.5) L/h and 30.8 (10.8) L, respectively, for ceftolozane; and 35.5 (18.5) h*µg/mL, 35.3 (16.5) L/h and 54.8 (20.1) L, respectively, for tazobactam. Clearance and Vss were higher for both ceftolozane and tazobactam in patients with ARC compared with healthy individuals. The mean estimated ceftolozane fT>MIC at 4 µg/mL was 86.4%; the mean estimated tazobactam fT>threshold = 1 µg/mL was 54.9%. Treatment-emergent adverse events were mild to moderate. CONCLUSIONS In patients with ARC, a 3 g C/T dose met respective pharmacodynamic targets for ceftolozane and tazobactam. CLINICALTRIALS. GOV IDENTIFIER NCT02387372.
Collapse
Affiliation(s)
- David P Nicolau
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
| | | | - Joseph L Kuti
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
| | | | | | - Brian Yu
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | | | - Zhen Zeng
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | | | | |
Collapse
|
13
|
Chu Y, Luo Y, Jiang M, Zhou B. Application of vancomycin in patients with augmented renal clearance. Eur J Hosp Pharm 2020; 27:276-279. [PMID: 32839259 DOI: 10.1136/ejhpharm-2018-001781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 10/30/2018] [Accepted: 11/07/2018] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To analyse the influence of factors on the steady-state trough concentration (Ctrough) of vancomycin, especially in patients with augmented renal clearance, and to provide a reference for clinical application. METHODS Data on patient demographics, routine blood examination, hepatic function and kidney function were collected from May 2013 to October 2016. A total of 292 patients were enrolled and correlations between Ctroughof vancomycin and other test indices were analysed by SPSS software. RESULTS The patients with augmented renal clearance were significantly younger with relatively lower Ctrough values and higher weight, ALB and PLT compared to others. And age was the most important factor of Ctroughamong subgroups of ARC. CONCLUSIONS Inpatients with augmented renal clearance,vancomycin Ctrough was mainly affected by age. Clinicians and pharmacists should adjust the dosage regimen in a timely manner based on therapeutic drug monitoring and these influencing factors.
Collapse
Affiliation(s)
- Yang Chu
- Department of Clinical Epidemiology and Center of Evidence-Based Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China.,Department of Pharmacy, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yifan Luo
- Department of Pharmacy, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Mingyan Jiang
- Department of Pharmacy, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Baosen Zhou
- Department of Clinical Epidemiology and Center of Evidence-Based Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
| |
Collapse
|
14
|
Chu Y, Luo Y, Ji S, Jiang M, Zhou B. Population pharmacokinetics of vancomycin in Chinese patients with augmented renal clearance. J Infect Public Health 2020; 13:68-74. [DOI: 10.1016/j.jiph.2019.06.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 06/10/2019] [Accepted: 06/17/2019] [Indexed: 11/16/2022] Open
|
15
|
Selecting the dosage of ceftazidime-avibactam in the perfect storm of nosocomial pneumonia. Eur J Clin Pharmacol 2019; 76:349-361. [PMID: 31836928 PMCID: PMC7223046 DOI: 10.1007/s00228-019-02804-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 11/20/2019] [Indexed: 01/04/2023]
Abstract
PURPOSE Ceftazidime-avibactam is a novel β-lactam/β-lactamase inhibitor combination recently approved in Europe and the USA for the treatment of adults with hospital-acquired pneumonia (HAP) and ventilator-associated pneumonia (VAP), among other indications. In the phase III REPROVE trial (NCT01808092), ceftazidime-avibactam demonstrated non-inferiority to meropenem for the treatment of patients with nosocomial pneumonia (NP), including VAP. As ceftazidime-avibactam was not studied in patients with NP prior to REPROVE, selecting an appropriate dosage regimen in the "perfect storm" of NP required careful consideration of potential determinants and confounders of response specific to the NP patient population. METHODS This review describes the series of preclinical studies and pharmacokinetic/pharmacodynamic (PK/PD) analyses that supported ceftazidime-avibactam dosage selection for patients with NP/VAP (2000/500 mg by 2-h intravenous infusion every 8 h, adjusted for renal function). In parallel, important considerations for antibiotic dosage selection in patients with NP are highlighted, including adequate drug penetration into the lungs, the suitability of murine-derived plasma PK/PD targets, evaluation of MIC distributions against clinical bacterial isolates from patients with NP, and consideration of PK in patients with NP, who are often critically ill. These analyses also supported the European approval of ceftazidime-avibactam for adults with HAP, including VAP, before the completion of REPROVE. CONCLUSIONS This work serves as a successful practical example of dosage design for a new antibacterial drug therapy in the indication of NP, including VAP, where previous drug therapies have failed, possibly as a result of evaluation of too few variables, thereby limiting the accuracy of pharmacodynamic predictions.
Collapse
|
16
|
Koulenti D, Xu E, Mok IYS, Song A, Karageorgopoulos DE, Armaganidis A, Lipman J, Tsiodras S. Novel Antibiotics for Multidrug-Resistant Gram-Positive Microorganisms. Microorganisms 2019; 7:E270. [PMID: 31426596 PMCID: PMC6723731 DOI: 10.3390/microorganisms7080270] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/11/2019] [Accepted: 08/15/2019] [Indexed: 02/07/2023] Open
Abstract
Increasing multidrug-resistance to Gram-positive pathogens, particularly to staphylococci, enterococci and streptococci, is a major problem, resulting in significant morbidity, mortality and healthcare costs. In recent years, only a small number of novel antibiotics effective against Gram-positive bacteria has been approved. This review will discuss the current evidence for novel branded antibiotics that are highly effective in the treatment of multidrug-resistant infections by Gram-positive pathogens, namely ceftobiprole, ceftaroline, telavancin, oritavancin, dalbavancin, tedizolid, besifloxacin, delafloxacin, ozenoxacin, and omadacycline. The mechanism of action, pharmacokinetics, microbiological spectrum, efficacy and safety profile will be concisely presented. As for any emerging antibiotic agent, resistance is likely to develop against these highly effective antibiotics. Only through appropriate dosing, utilization and careful resistance development monitoring will these novel antibiotics continue to treat Gram-positive pathogens in the future.
Collapse
Affiliation(s)
- Despoina Koulenti
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia.
- 2nd Critical Care Department, Attikon University Hospital, 12462 Athens, Greece.
| | - Elena Xu
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Isaac Yin Sum Mok
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Andrew Song
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia.
| | | | | | - Jeffrey Lipman
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia.
- Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, 4029 Brisbane, Australia
- Anesthesiology and Critical Care, Centre Hospitalier Universitaire De Nîmes (CHU), University of Montpellier, 30029 Nîmes, France
| | - Sotirios Tsiodras
- 4th Department of Internal Medicine, Attikon University Hospital, 12462 Athens, Greece
| |
Collapse
|
17
|
Rodríguez-Gascón A, Canut-Blasco A. Deciphering pharmacokinetics and pharmacodynamics of fosfomycin. REVISTA ESPANOLA DE QUIMIOTERAPIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE QUIMIOTERAPIA 2019; 32 Suppl 1:19-24. [PMID: 31131588 PMCID: PMC6555163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Fosfomycin, a low molecular weight and hydrophilic drug with negligible protein binding, is eliminated almost exclusively by glomerular filtration, whose clearance is subject to patient renal function. The volume of distribution approximates to the extracellular body water (about 0.3 L/Kg) in healthy volunteers, but it is increased in critically ill patients with bacterial infections. Fosfomycin presents a high ability to distribute into many tissues, including inflamed tissues and abscess fluids. Based on PK/PD analysis and Monte Carlo simulations, we have evaluated different fosfomycin dosing regimen to optimize the treatment of septic patients due to Enterobacterales and Pseudomonas aeruginosa. As PK/PD targets, we selected %T>MIC > 70% for all pathogens, and AUC24/MIC > 24 and AUC24/MIC > 15 for net stasis of Enterobacterales and P. aeruginosa, respectively. Pharmacokinetic parameters in critically ill patients were obtained from the literature. Several dosing regimens were studied in patients with normal renal function: fosfomycin 2-8 g given every 6-12 hours, infused over 30 minutes- 24 hours. At the susceptibility EUCAST breakpoint for Enterobacterales and Staphylococcus spp. (MIC ≤ 32 mg/L), fosfomycin 4 g/8h or higher infused over 30 minutes achieved a probability of target attainment (PTA) > 90%, based in both %T>MIC and AUC24/MIC. For MIC of 64 mg/L, fosfomycin 6 g/6h in 30-minute infusion and 8 g/ 8h in 30-minute and 6 hours infusions also achieved PTA values higher than 90%. No fosfomycin monotherapy regimen was able to achieve PK/PD targets related to antimicrobial efficacy for P. aeruginosa with MICs of 256-512 mg/L.
Collapse
Affiliation(s)
- Alicia Rodríguez-Gascón
- Pharmacokinetics, Nanotechnology and Gene Therapy Group (PharmaNanoGene), Faculty of Pharmacy, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, España,Centro de Investigación Lascaray ikergunea, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, España
| | - Andrés Canut-Blasco
- Microbiology Service, Hospital Universitario de Álava, Servicio Vasco de Salud Osakidetza, Vitoria-Gasteiz, España,Instituto de Investigación Biosanitaria (BIOARABA), Servicio Vasco de Salud Osakidetza, Vitoria-Gasteiz, España
| |
Collapse
|
18
|
Muller AE, Huttner B, Huttner A. Therapeutic Drug Monitoring of Beta-Lactams and Other Antibiotics in the Intensive Care Unit: Which Agents, Which Patients and Which Infections? Drugs 2019; 78:439-451. [PMID: 29476349 DOI: 10.1007/s40265-018-0880-z] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Antibiotics are among the medications most frequently administered to the critically ill, a population with high levels of intra- and inter-individual pharmacokinetic variability. Our knowledge of the relationships among antibiotic dosing, exposure and clinical effect in this population has increased in recent decades. Therapeutic drug monitoring (TDM) of serum antibiotic concentrations is the most practical means of assessing adequate antibiotic exposure, though until recently, it has been underutilised for this end. Now TDM is becoming more widespread, particularly for the beta-lactam antibiotics, a class historically thought to have a wide therapeutic range. We review the basic requirements, indications, and targets for effective TDM of the glycopeptides, aminoglycosides, quinolones and beta-lactam antibiotics in the adult intensive-care setting, with a special focus on TDM of the beta-lactam antibiotics, the most widely used antibiotic class.
Collapse
Affiliation(s)
- Anouk E Muller
- Department of Medical Microbiology, Haaglanden Medisch Centrum, The Hague, The Netherlands.,Department of Medical Microbiology and Infectious Diseases, Erasmus MC, Rotterdam, The Netherlands
| | - Benedikt Huttner
- Division of Infectious Diseases, University Hospitals of Geneva, Rue Gabrielle-Gentil-Perret 4, 1205, Geneva, Switzerland
| | - Angela Huttner
- Division of Infectious Diseases, University Hospitals of Geneva, Rue Gabrielle-Gentil-Perret 4, 1205, Geneva, Switzerland.
| |
Collapse
|
19
|
Affiliation(s)
- Edward Cox
- From the Food and Drug Administration, Silver Spring, MD (E.C., S.N.)
| | - Sumathi Nambiar
- From the Food and Drug Administration, Silver Spring, MD (E.C., S.N.)
| | - Lindsey Baden
- From the Food and Drug Administration, Silver Spring, MD (E.C., S.N.)
| |
Collapse
|
20
|
Bricheux A, Lenggenhager L, Hughes S, Karmime A, Lescuyer P, Huttner A. Therapeutic drug monitoring of imipenem and the incidence of toxicity and failure in hospitalized patients: a retrospective cohort study. Clin Microbiol Infect 2018; 25:383.e1-383.e4. [PMID: 30528370 DOI: 10.1016/j.cmi.2018.11.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVES Therapeutic drug monitoring (TDM) of beta-lactam antibiotics is increasingly employed to ensure adequate antibiotic exposure and slow emergence of resistance. Imipenem's therapeutic range has not been defined; we report plasma concentrations and clinical outcomes of patients receiving imipenem for bacterial infections. METHODS All hospitalized adult patients undergoing imipenem TDM during therapy for suspected or confirmed bacterial infections between 1 January 2013 and 28 February 2017 were included in this single-centre retrospective cohort. The primary outcome was incidence of clinical toxicity; secondary outcomes included incidence of clinical failure and median imipenem concentrations in those with and without toxicity and/or failure. Total imipenem concentrations were measured via high-performance liquid chromatography with ultraviolet detection. RESULTS A total of 403 imipenem levels were drawn from 300 patients. Fifteen (5%) patients experienced an adverse event considered at least possibly related to imipenem. Eighty-eight (29%) patients had clinical failure; augmented renal clearance appeared to emerge as a protective factor against failure (OR 0.42; 95% CI 0.20-0.89). Median first-measure trough concentration was 3.2 mg/L (IQR 1.7-6.5). Patients with suspected toxicity did not have higher concentrations. Patients whose dose was not increased after a trough level <2 mg/L was returned trended towards increased clinical failure (3/28 (11%) vs. 12/63 (19%)), though the difference was not statistically significant. CONCLUSIONS Toxicity was rare and clinical failure frequent in this cohort of patients whose imipenem concentrations were generally low and occasionally undetectable. Larger trials are needed to define optimal imipenem exposure.
Collapse
Affiliation(s)
- A Bricheux
- Geneva University Faculty of Medicine, Geneva, Switzerland
| | - L Lenggenhager
- Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - S Hughes
- Toxicology and Therapeutic Drug Monitoring Laboratory, Geneva University Hospitals, Geneva, Switzerland
| | - A Karmime
- Toxicology and Therapeutic Drug Monitoring Laboratory, Geneva University Hospitals, Geneva, Switzerland
| | - P Lescuyer
- Toxicology and Therapeutic Drug Monitoring Laboratory, Geneva University Hospitals, Geneva, Switzerland
| | - A Huttner
- Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland.
| |
Collapse
|
21
|
Dahyot-Fizelier C, Marchand S, Lipman J. Is augmented renal clearance the Holy Grail of antibiotic therapy failure in ventilator-acquired pneumonia? Anaesth Crit Care Pain Med 2018; 37:5-6. [PMID: 29362162 DOI: 10.1016/j.accpm.2017.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Claire Dahyot-Fizelier
- Neuro-Intensive Care and Intensive Care Units, centre hospitalier universitaire de Poitiers, 2, rue de la Milétrie, 86000 Poitiers, France; Inserm UMR1070, Pharmacology of anti-infective agents, université de Poitiers, 86073 Poitiers, France.
| | - Sandrine Marchand
- Neuro-Intensive Care and Intensive Care Units, centre hospitalier universitaire de Poitiers, 2, rue de la Milétrie, 86000 Poitiers, France; Inserm UMR1070, Pharmacology of anti-infective agents, université de Poitiers, 86073 Poitiers, France
| | - Jeffrey Lipman
- Royal Brisbane and Women's Hospital and The University of Queensland, Queensland, Australia
| |
Collapse
|
22
|
Cies JJ, LaCoursiere RJ, Moore WS, Chopra A. Therapeutic Drug Monitoring of Prolonged Infusion Aztreonam for Multi-Drug Resistant Pseudomonas aeruginosa: A Case Report. J Pediatr Pharmacol Ther 2017; 22:467-470. [PMID: 29290748 DOI: 10.5863/1551-6776-22.6.467] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aztreonam, a broad-spectrum monobactam, is typically reserved for multidrug resistant (MDR) infections. Pharmacokinetic (PK) data to guide dosing in children, however, are limited to healthy volunteers or nonintensive care unit (ICU) patients. Impaired antibiotic delivery into tissue remains a major concern and may explain the high morbidity and mortality associated with MDR infections. Therefore, evaluating the PK changes in pediatric ICU patients is necessary to elucidate the most appropriate antimicrobial regimen. We describe the PK of prolonged infusion aztreonam in a patient with MDR Pseudomonas aeruginosa empyema. The 16-year-old tetraplegic male with a cervical spinal cord injury, chronic respiratory failure, and tracheostomy was admitted with a 2-day history of fever and hypoxemia. Chest x-ray revealed a left lower lobe infiltrate. On hospital day 2, computed tomography scan noted a massive collapse of the left lung with bronchiectasis and hepatization with a pneumatocele. He underwent bronchoscopy on days 2, 6, and 10 and the cultures subsequently grew P aeruginosa only sensitive to aztreonam (minimum inhibitory concentration [MIC] of 2-6 mg/L). A regimen of aztreonam 2 grams intravenously (IV) every 6 hours (each dose infused over 4 hours) and polymyxin B 1,000,000 units IV every 12 hours (each dose infused over 30 minutes) was initiated on day 3. On day 8, the aztreonam serum plateau concentration was 71 mg/L. Repeat respiratory and bronchoscopy cultures from days 19 to 37 remained negative. Aztreonam clearance was 2.3 mL/kg/min, which was significantly increased when compared with the 1.3 mL/kg/min suggested in the prescribing information based on adult data. A prolonged infusion of 2 grams of aztreonam every 6 hours (each dose infused over 4 hours) successfully attained 100% of the target serum and lung concentrations above the MIC for at least 40% of the dosing interval, and was associated with successful treatment of MDR P aeruginosa empyema.
Collapse
Affiliation(s)
- Jeffrey J Cies
- The Center for Pediatric Pharmacotherapy (JJC, WSM, AC), LLC, Pottstown, Pennsylvania; St. Christopher's Hospital for Children (JJC), Philadelphia, Pennsylvania; Drexel University College of Medicine (JJC), Philadelphia, Pennsylvania; Thomas Jefferson University School of Pharmacy (RJL), Philadelphia, Pennsylvania; NYU Langone Medical Center (AC), New York, New York; NYU School of Medicine (AC), New York, New York
| | - Richard J LaCoursiere
- The Center for Pediatric Pharmacotherapy (JJC, WSM, AC), LLC, Pottstown, Pennsylvania; St. Christopher's Hospital for Children (JJC), Philadelphia, Pennsylvania; Drexel University College of Medicine (JJC), Philadelphia, Pennsylvania; Thomas Jefferson University School of Pharmacy (RJL), Philadelphia, Pennsylvania; NYU Langone Medical Center (AC), New York, New York; NYU School of Medicine (AC), New York, New York
| | - Wayne S Moore
- The Center for Pediatric Pharmacotherapy (JJC, WSM, AC), LLC, Pottstown, Pennsylvania; St. Christopher's Hospital for Children (JJC), Philadelphia, Pennsylvania; Drexel University College of Medicine (JJC), Philadelphia, Pennsylvania; Thomas Jefferson University School of Pharmacy (RJL), Philadelphia, Pennsylvania; NYU Langone Medical Center (AC), New York, New York; NYU School of Medicine (AC), New York, New York
| | - Arun Chopra
- The Center for Pediatric Pharmacotherapy (JJC, WSM, AC), LLC, Pottstown, Pennsylvania; St. Christopher's Hospital for Children (JJC), Philadelphia, Pennsylvania; Drexel University College of Medicine (JJC), Philadelphia, Pennsylvania; Thomas Jefferson University School of Pharmacy (RJL), Philadelphia, Pennsylvania; NYU Langone Medical Center (AC), New York, New York; NYU School of Medicine (AC), New York, New York
| |
Collapse
|
23
|
Using Population Pharmacokinetic Modeling and Monte Carlo Simulations To Determine whether Standard Doses of Piperacillin in Piperacillin-Tazobactam Regimens Are Adequate for the Management of Febrile Neutropenia. Antimicrob Agents Chemother 2017; 61:AAC.00311-17. [PMID: 28807922 DOI: 10.1128/aac.00311-17] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/30/2017] [Indexed: 01/08/2023] Open
Abstract
Changes in the pharmacokinetics of piperacillin in febrile neutropenic patients have been reported to result in suboptimal exposures. This study aimed to develop a population pharmacokinetic model for piperacillin and perform dosing simulation to describe optimal dosing regimens for hematological malignancy patients with febrile neutropenia. Concentration-time data were obtained from previous prospective observational pharmacokinetic and interventional therapeutic drug monitoring studies. Nonparametric population pharmacokinetic analysis and Monte Carlo dosing simulations were performed with the Pmetrics package for R. A two-compartment model, with between-subject variability for clearance (CL), adequately described the data from 37 patients (21 males, age of 59 ± 12 years [means ± standard deviations] and weight of 77 ± 16 kg). Parameter estimates were CL of 18.0 ± 4.8 liters/h, volume of distribution of the central compartment of 14.3 ± 7.3 liters, rate constant for piperacillin distribution from the central to peripheral compartment of 1.40 ± 1.35 h-1, and rate constant for piperacillin distribution from the peripheral to central compartment of 4.99 ± 7.81 h-1 High creatinine clearance (CLCR) was associated with reduced probability of target attainment (PTA). Extended and continuous infusion regimens achieved a high PTA of >90% for an unbound concentration of piperacillin remaining above the MIC (fT>MIC) of 50%. Only continuous regimens achieved >90% PTA for 100% fT>MIC when CLCR was high. The cumulative fraction of response (FTA, for fractional target attainment) was suboptimal (<85%) for conventional regimens for both empirical and directed therapy considering 50% and 100% fT>MIC FTA was maximized with prolonged infusions. Overall, changes in piperacillin pharmacokinetics and the consequences on therapeutic dosing requirements appear similar to those observed in intensive care patients. Guidelines should address the altered dosing needs of febrile neutropenic patients exhibiting high CLCR or with known/presumed infections from high-MIC bacteria.
Collapse
|
24
|
Domes C, Domes R, Popp J, Pletz MW, Frosch T. Ultrasensitive Detection of Antiseptic Antibiotics in Aqueous Media and Human Urine Using Deep UV Resonance Raman Spectroscopy. Anal Chem 2017; 89:9997-10003. [PMID: 28840713 DOI: 10.1021/acs.analchem.7b02422] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Deep UV resonance Raman spectroscopy is introduced as an analytical tool for ultrasensitive analysis of antibiotics used for empirical treatment of patients with sepsis and septic shock, that is, moxifloxacin, meropenem, and piperacillin in aqueous solution and human urine. By employing the resonant excitation wavelengths λexc = 244 nm and λexc = 257 nm, only a small sample volume and short acquisition times are needed. For a better characterization of the matrix urine, the main ingredients were investigated. The capability of detecting the antibiotics in clinically relevant concentrations in aqueous media (LODs: 13.0 ± 1.4 μM for moxifloxacin, 43.6 ± 10.7 μM for meropenem, and 7.1 ± 0.6 μM for piperacillin) and in urine (LODs: 36.6 ± 11.0 μM for moxifloxacin, and 114.8 ± 3.1 μM for piperacillin) points toward the potential of UV Raman spectroscopy as point-of-care method for therapeutic drug monitoring (TDM). This procedure enables physicians to achieve fast adequate dosing of antibiotics to improve the outcome of patients with sepsis.
Collapse
Affiliation(s)
- Christian Domes
- Leibniz Institute of Photonic Technology , Jena 07745, Germany
| | - Robert Domes
- Leibniz Institute of Photonic Technology , Jena 07745, Germany
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology , Jena 07745, Germany.,Friedrich Schiller University , Institute for Physical Chemistry, Jena 07743, Germany.,Friedrich Schiller University , Abbe Centre of Photonics, Jena 07745, Germany
| | - Mathias W Pletz
- Center for Infectious Diseases and Infection Control, Jena University Hospital , Jena 07743, Germany
| | - Torsten Frosch
- Leibniz Institute of Photonic Technology , Jena 07745, Germany.,Friedrich Schiller University , Institute for Physical Chemistry, Jena 07743, Germany.,Friedrich Schiller University , Abbe Centre of Photonics, Jena 07745, Germany
| |
Collapse
|
25
|
T’jollyn H, Vermeulen A, Van Bocxlaer J, Colin P. A Physiologically Based Pharmacokinetic Perspective on the Clinical Utility of Albumin-Based Dose Adjustments in Critically Ill Patients. Clin Pharmacokinet 2017; 57:59-69. [DOI: 10.1007/s40262-017-0549-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
26
|
Cies JJ, Moore WS, Conley SB, Shea P, Enache A, Chopra A. Therapeutic Drug Monitoring of Continuous Infusion Doripenem in a Pediatric Patient on Continuous Renal Replacement Therapy. J Pediatr Pharmacol Ther 2017; 22:69-73. [PMID: 28337084 DOI: 10.5863/1551-6776-22.1.69] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An 11-year-old African American male with severe combined immunodeficiency variant, non-cystic fibrosis bronchiectasis, pancreatic insufficiency, chronic mycobacterium avium-intracellulare infection, chronic sinusitis, and malnutrition presented with a 1-week history of fevers. He subsequently developed respiratory decompensation and cefepime was discontinued and doripenem was initiated. Doripenem was the carbapenem used due to a national shortage of meropenem. By day 7 the patient (24.7 kg) had a positive fluid balance of 6925 mL (28% FO), and on days 7 into 8 developed acute kidney injury evidenced by an elevated serum creatinine of 0.68 mg/dL, an increase from the baseline of 0.28 mg/dL. On day 9, the patient was initiated on continuous renal replacement therapy (CRRT) and the doripenem dosing was changed to a continuous infusion of 2.5 mg/kg/hr (60 mg/kg/day). Approximately 12.5 hours after the start of the doripenem a serum concentration was obtained, which was 4.01 mg/L corresponding to a clearance of 10.5 mL/min/kg. The pediatric dosing and pharmacokinetic data available for doripenem suggest a clearance estimate of 4.4 to 4.8 mL/min/kg, and the adult clearance estimate is 2.4 to 3.78 mL/min/kg. The calculated clearance in our patient of 10.5 mL/min/kg is over double the highest clearance estimate in the pediatric literature. This case demonstrates that doripenem clearance is significantly increased with CRRT in comparison with the published pediatric and adult data. An appropriate pharmacodynamic outcome (time that free drug concentration > minimum inhibitory concentration) can be achieved by continuous infusion doripenem with concurrent therapeutic drug monitoring.
Collapse
|
27
|
Tokimatsu I, Shigemura K, Kotaki T, Yoshikawa H, Yamamichi F, Tomo T, Arakawa S, Fujisawa M, Kadota JI. A Prospective Study of the Efficacy, Safety and Pharmacokinetics of Enteral Moxifloxacin in the Treatment of Hemodialysis Patients with Pneumonia. Intern Med 2017; 56:1315-1319. [PMID: 28566592 PMCID: PMC5498193 DOI: 10.2169/internalmedicine.56.8369] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objectives To investigate the efficacy of oral moxifloxacin (MFLX) as a treatment for pneumonia in hemodialysis (HD) patients and the pharmacokinetic (PK) profile of MFLX after oral administration. Methods Thirteen adult patients who required HD due to chronic renal failure were enrolled in the present study, which was performed to investigate the treatment of community-acquired pneumonia in HD patients. A standard dose of MFLX (400 mg, once daily) was administered. The therapy was continued, discontinued, or switched to another antibiotic depending on the response of the pneumonia to MFLX. A population PK model was developed using the post-hoc method. Results In total, 13 HD patients with pneumonia (male, n=7; female, n=6) were enrolled in the present study. The evaluation on the 3rd day showed that treatment was successful in 11 patients (84.6%) and that 10 patients were cured (76.9%). In the one case in which MFLX treatment failed, the patient was cured by switching to ceftriaxone (CTRX) (2 g, intravenously) plus levofloxacin (LVFX) (250 mg, orally). The causative bacterium in this male patient was P. aeruginosa. It did not display resistance to fluoroquinolones. One patient had liver dysfunction due to MFLX. The estimated PK parameters of MFLX were as follows: AUC0→24, 61.04±17.74 μg h/mL; Cmax, 5.25±1.12 μg/mL; and Ctrough, 1.15±0.45 μg/mL. The PK parameters of MFLX among the patients in whom adverse events occurred or in whom a cure was not achieved did not differ from those of the other patients to a statistically significant extent. Conclusion MFLX showed good efficacy and safety in HD patients with community-acquired pneumonia and the results of the PK analysis were favorable. Further prospective studies with larger numbers of patients will be needed to draw definitive conclusions.
Collapse
Affiliation(s)
- Issei Tokimatsu
- Department of Infection Prevention and Control, Kobe University Hospital, Japan
| | - Katsumi Shigemura
- Department of Infection Prevention and Control, Kobe University Hospital, Japan
- Department of Urology, Kobe University Graduate School of Medicine, Japan
- Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Science, Japan
| | - Tomohiro Kotaki
- Department of Infection Prevention and Control, Kobe University Hospital, Japan
- Division of Infectious Diseases, Department of International Health, Kobe University Graduate School of Health Science, Japan
| | - Hiroki Yoshikawa
- Department of Respiratory Medicine and Infectious Diseases, Oita University, Faculty of Medicine, Japan
| | - Fukashi Yamamichi
- Department of Urology, Hyogo Prefectural Amagasaki General Medical Center, Japan
| | - Tadashi Tomo
- Blood Purification Center, Oita University Hospital, Japan
| | | | - Masato Fujisawa
- Department of Urology, Kobe University Graduate School of Medicine, Japan
| | - Jun-Ichi Kadota
- Department of Respiratory Medicine and Infectious Diseases, Oita University, Faculty of Medicine, Japan
| |
Collapse
|
28
|
Chu Y, Luo Y, Qu L, Zhao C, Jiang M. Application of vancomycin in patients with varying renal function, especially those with augmented renal clearance. PHARMACEUTICAL BIOLOGY 2016; 54:2802-2806. [PMID: 27251880 DOI: 10.1080/13880209.2016.1183684] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 04/23/2016] [Indexed: 06/05/2023]
Abstract
CONTEXT Augmented renal clearance (ARC) refers to enhanced renal elimination of circulating solute, and has attracted wide attention in recent years. OBJECTIVE This study evaluates the effects of ARC on serum vancomycin concentration in patients administered vancomycin. MATERIALS AND METHODS This was a retrospective study in patients receiving vancomycin treatment at a dose of 1000 mg in every 12 h and undergoing serum monitoring admitted over a 2-year period (May 2013 to May 2015), in order to estimate the influence of ARC on serum vancomycin concentration. In this study, statistical comparisons were made on the results from patients grouped according to creatinine clearance (CLcr). RESULTS One hundred forty-eight patients were enrolled in our study. The results showed that ARC patients were significantly younger, with a significantly lower Scr and higher GFR. The CLcr and steady-state trough concentrations of serum vancomycin exhibited a logarithmic correlation (Rs = -0.699, R2 = 0.488, p < 0.01) in the patients included in our study. The trough vancomycin concentrations of 62.9% patients in high CLcr group were under 10 μg/mL. DISCUSSION AND CONCLUSION Since ARC was significantly associated with subtherapeutic serum vancomycin concentration, it was necessary to devise adjusted dosage regimens for these patients based on their CLcr.
Collapse
Affiliation(s)
- Yang Chu
- a Department of Pharmacy , the First Affiliated Hospital of China Medical University , Shenyang , China
- b Department of the First Clinical Pharmacy , China Medical University , Shenyang , China
| | - Yifan Luo
- a Department of Pharmacy , the First Affiliated Hospital of China Medical University , Shenyang , China
- b Department of the First Clinical Pharmacy , China Medical University , Shenyang , China
| | - Lianyue Qu
- a Department of Pharmacy , the First Affiliated Hospital of China Medical University , Shenyang , China
- b Department of the First Clinical Pharmacy , China Medical University , Shenyang , China
| | - Chunyang Zhao
- a Department of Pharmacy , the First Affiliated Hospital of China Medical University , Shenyang , China
- b Department of the First Clinical Pharmacy , China Medical University , Shenyang , China
| | - Mingyan Jiang
- a Department of Pharmacy , the First Affiliated Hospital of China Medical University , Shenyang , China
| |
Collapse
|
29
|
Selmi V, Loriga B, Vitali L, Carlucci M, Di Filippo A, Carta G, Sgambati E, Tofani L, De Gaudio AR, Novelli A, Adembri C. Changes in ceftriaxone pharmacokinetics/pharmacodynamics during the early phase of sepsis: a prospective, experimental study in the rat. J Transl Med 2016; 14:316. [PMID: 27846855 PMCID: PMC5111190 DOI: 10.1186/s12967-016-1072-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 11/01/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sepsis is characterized by the loss of the perm-selectivity properties of the glomerular filtration barrier (GFB) with consequent albuminuria. We examined whether the pharmacokinetics-pharmacodynamics (PK/PD) of ceftriaxone (CTX), an extensively protein-bound 3rd generation cephalosporin, is altered during early sepsis and whether an increase in urinary loss of bound-CTX, due to GFB alteration, can occur in this condition. METHODS A prospective, experimental, randomized study was carried out in adult male Sprague-Dawley rats. Sepsis was induced by cecal ligation and puncture (CLP). Rats were divided into two groups: Sham-operated and CLP. CTX (100 mg i.p., equivalent to 1 g dose in humans) was administered in order to measure plasma and lung CTX concentrations at several time-points: baseline and 1, 2, 4 and 6 h after administration. CTX was measured by High Performance Liquid Chromatography (HPLC). The morphological status of the sialic components of the GFB barrier was assessed by lectin histo-chemistry. Monte Carlo simulation was performed to calculate the probability of target attainment (PTA >90%) for 80 and 100% of Tfree > minimum inhibitory concentration (MIC) for 80 and 100% of dosing interval. MEASUREMENTS AND MAIN RESULTS After CLP, sepsis developed in rats as documented by the growth of polymicrobial flora in the peritoneal fluid (≤1 × 101 CFU in sham rats vs 5 × 104-1 × 105 CFU in CLP rats). CTX plasma concentrations were higher in CLP than in sham rats at 2 and 4 h after administration (difference at 2 h was 47.3, p = 0.012; difference at 4 h was 24.94, p = 0.004), while lung penetration tended to be lower. An increased urinary elimination of protein-bound CTX occurred (553 ± 689 vs 149 ± 128 mg/L, p < 0.05; % of bound/total CTX 22 ± 6 in septic rats vs 11 ± 4 in sham rats, p < 0.01) and it was associated with loss of the GFB sialic components. According to Monte Carlo simulation a PTA > 90% for 100% of the dosing interval was reached neither for sham nor CLP rats using MIC = 1 mg/L, the clinical breakpoint for Enterobacteriacee. CONCLUSIONS Sepsis causes changes in the PK of CTX and an alteration in the sialic components of the GFB, with consequent loss of protein-bound CTX. Among factors that can affect drug pharmacokinetics during the early phases of sepsis, urinary loss of both free and albumin-bound antimicrobials should be considered.
Collapse
Affiliation(s)
- Valentina Selmi
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy
| | - Beatrice Loriga
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy.
| | - Luca Vitali
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy
| | - Martina Carlucci
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy
| | - Alessandro Di Filippo
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy
| | - Giulio Carta
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy
| | - Eleonora Sgambati
- Department of Biosciences and Territory, University of Molise, Contrada Fonte Lappone, 86090, Pesche, IS, Italy
| | - Lorenzo Tofani
- Department of Neurosciences, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
| | - Angelo Raffaele De Gaudio
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy
| | - Andrea Novelli
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Viale Pieraccini 6, 50139, Florence, Italy
| | - Chiara Adembri
- Department of Health Sciences, Section of Anesthesiology and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134, Florence, Italy
| |
Collapse
|
30
|
Phe K, Cadle RM, Guervil DJ, Guzman OE, Lockwood AM, Perez KK, Vuong NN, Aitken SL. Significant publications on infectious diseases pharmacotherapy in 2014. Am J Health Syst Pharm 2016; 72:1380-92. [PMID: 26246295 DOI: 10.2146/ajhp150112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
PURPOSE The most important articles on infectious diseases (ID) pharmacotherapy published in the peer-reviewed literature in 2014, as nominated and selected by panels of pharmacists and others with ID expertise, are summarized. SUMMARY Members of the Houston Infectious Diseases Network were asked to nominate articles published in 2014 from prominent peer-reviewed journals that were felt to have a major impact in the field of ID pharmacotherapy. A list of 19 nominated articles on general ID-related topics and 9 articles specifically related to human immunodeficiency virus (HIV) infection or acquired immunodeficiency syndrome (AIDS) was compiled. In a national online survey, members of the Society of Infectious Diseases Pharmacists (SIDP) were asked to select from the list 10 general ID articles believed to have made a significant contribution to the field of ID pharmacotherapy and 1 article contributing to HIV/AIDS pharmacotherapy. Of the 291 SIDP members surveyed, 134 (46%) and 56 (19%) participated in the selection of general ID-related articles and HIV/AIDS-related articles, respectively. The 11 highest-ranked papers (10 general ID-related articles, 1 HIV/AIDS-related article) are summarized here. CONCLUSION With the vast number of articles published each year, it is difficult to remain up-to-date on current, significant ID pharmacotherapy publications. This review of significant publications in 2014 may be helpful by lessening this burden.
Collapse
Affiliation(s)
- Kady Phe
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston
| | - Richard M Cadle
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston
| | - David J Guervil
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston
| | - Oscar E Guzman
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston
| | - Ashley M Lockwood
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston
| | - Katherine K Perez
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston
| | - Nancy N Vuong
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston
| | - Samuel L Aitken
- Kady Phe, Pharm.D., BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy, Houston, TX. Richard M. Cadle, Pharm.D., BCPS (AQ-ID), FASHP, is Clinical Pharmacy Manager and Residency Program Director, Pharmacy Practice (Postgraduate Year 1) and Infectious Disease (Postgraduate Year 2) Programs, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX. David J. Guervil, Pharm.D., is Clinical Pharmacy Specialist-Infectious Diseases, Department of Pharmacy, Memorial Hermann-Texas Medical Center, Houston. Oscar E. Guzman, Pharm.D., BCPS, is Clinical Director, Infectious Diseases and Critical Care, Cardinal Health, Innovative Delivery Solutions, Houston. Ashley M. Lockwood, Pharm.D., is Postgraduate Year 2 Infectious Diseases Pharmacy Resident, Department of Pharmacy, Houston Methodist Hospital, Houston. Katherine K. Perez, Pharm.D., BCPS, is Clinical Specialist, Infectious Diseases, Departments of Pharmacy and Pathology and Genomic Medicine, Houston Methodist Hospital, and Assistant Professor of Health Sciences and Assistant Clinical Member, Institute for Academic Medicine, Houston Methodist Research Institute, Houston. Nancy N. Vuong, Pharm.D., MBIOT, BCPS, is Infectious Diseases Pharmacotherapy Fellow, Department of Clinical Sciences and Administration, University of Houston College of Pharmacy. Samuel L. Aitken, Pharm.D., BCPS, is Clinical Pharmacy Specialist, Infectious Diseases, Division of Pharmacy, The University of Texas M. D. Anderson Cancer Center, Houston.
| | | |
Collapse
|
31
|
Cies JJ, Moore WS, Conley SB, Dickerman MJ, Small C, Carella D, Shea P, Parker J, Chopra A. Pharmacokinetics of Continuous Infusion Meropenem With Concurrent Extracorporeal Life Support and Continuous Renal Replacement Therapy: A Case Report. J Pediatr Pharmacol Ther 2016; 21:92-7. [PMID: 26997934 DOI: 10.5863/1551-6776-21.1.92] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Pharmacokinetic parameters can be significantly altered for both extracorporeal life support (ECLS) and continuous renal replacement therapy (CRRT). This case report describes the pharmacokinetics of continuous-infusion meropenem in a patient on ECLS with concurrent CRRT. A 2.8-kg, 10-day-old, full-term neonate born via spontaneous vaginal delivery presented with hypothermia, lethargy, and a ~500-g weight loss from birth. She progressed to respiratory failure on hospital day 2 (HD 2) and developed sepsis, disseminated intravascular coagulation, and liver failure as a result of disseminated adenoviral infection. By HD 6, acute kidney injury was evident, with progressive fluid overload >1500 mL (+) for the admission. On HD 6 venoarterial ECLS was instituted for lung protection and fluid removal. On HD 7 she was initiated on CRRT. On HD 12, a blood culture returned positive and subsequently grew Pseudomonas aeruginosa with a minimum inhibitory concentration (MIC) for meropenem of 0.25 mg/L. She was started on vancomycin, meropenem, and amikacin. A meropenem bolus of 40 mg/kg was given, followed by a continuous infusion of 10 mg/kg/hr (240 mg/kg/day). On HD 15 (ECLS day 9) a meropenem serum concentration of 21 mcg/mL was obtained, corresponding to a clearance of 7.9 mL/kg/min. Repeat cultures from HDs 13 to 15 (ECLS days 7-9) were sterile. This meropenem regimen was successful in providing a target attainment of 100% for serum concentrations above the MIC for ≥40% of the dosing interval and was associated with a sterilization of blood in this complex patient on concurrent ECLS and CRRT circuits.
Collapse
Affiliation(s)
- Jeffrey J Cies
- The Center for Pediatric Pharmacotherapy LLC, Pottstown, Pennsylvania ; St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Wayne S Moore
- The Center for Pediatric Pharmacotherapy LLC, Pottstown, Pennsylvania
| | - Susan B Conley
- St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Mindy J Dickerman
- St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Christine Small
- St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Dominick Carella
- St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Paul Shea
- St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Jason Parker
- St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Arun Chopra
- The Center for Pediatric Pharmacotherapy LLC, Pottstown, Pennsylvania ; NYU Langone Medical Center, New York, New York ; NYU School of Medicine, New York, New York
| |
Collapse
|
32
|
Streit F, Perl T, Schulze MH, Binder L. Personalised beta-lactam therapy: basic principles and practical approach. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/labmed-2016-0050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract:Bacterial infections are potentially life-threatening diseases requiring effective antibiotic treatment right from the outset to achieve a favourable prognosis. Therapeutic success depends on the susceptibility of the bacterial pathogen, determined by the minimum inhibitory concentration (MIC), and the concentration of the antibiotic at the focus of infection, which is influenced by drug metabolism and pharmacokinetic (PK) factors. Beta-lactams are time-dependent antibiotics. Bacterial killing correlates with the duration of the drug concentration above the MIC of the pathogen. Critical illness is associated with major PK changes. This may lead to unexpected drug concentrations and unpredictable dose requirements differing significantly from standard dosages. Emerging dosing strategies are therefore based on PK/pharmacodynamic (PD) principles. Therapeutic drug monitoring (TDM) is increasingly playing a key role in antibiotic treatment optimisation in general and in beta-lactam therapy, in particular, notably in severely ill patients. Furthermore, evidence of the superiority of continuous beta-lactam infusions over shorter administration regimens is growing. Target drug concentrations have to be defined, considering MIC values especially in pathogens with limited susceptibility. For reliable TDM results, correct pre-analytical sample handling is indispensable. Personalised, TDM-guided therapy currently offers the most promising approach to assuring that beta-lactam treatment is effective, especially in critically ill patients.
Collapse
|
33
|
Can we transfer pharmacokinetics/pharmacodynamics of antimicrobials into clinical practice? Int J Antimicrob Agents 2015; 46 Suppl 1:S40-2. [DOI: 10.1016/j.ijantimicag.2015.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
34
|
Hobbs ALV, Shea KM, Roberts KM, Daley MJ. Implications of Augmented Renal Clearance on Drug Dosing in Critically Ill Patients: A Focus on Antibiotics. Pharmacotherapy 2015; 35:1063-75. [DOI: 10.1002/phar.1653] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Athena L. V. Hobbs
- Department of Pharmacy; Baptist Memorial Hospital - Memphis; Memphis Tennessee
| | | | - Kirsten M. Roberts
- Department of Pharmacy; Northwestern Memorial Hospital; Chicago Illinois
| | | |
Collapse
|
35
|
|
36
|
Huttner A, Harbarth S, Hope WW, Lipman J, Roberts JA. Therapeutic drug monitoring of the β-lactam antibiotics: what is the evidence and which patients should we be using it for? J Antimicrob Chemother 2015; 70:3178-83. [PMID: 26188037 DOI: 10.1093/jac/dkv201] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Traditional antibiotic dosing was not designed for today's escalating antibiotic resistance, lack of novel antibiotics and growing complexity in patient populations. Dosing that ensures optimal antibiotic exposures should be considered essential to increase the likelihood of effective patient treatment. Given the variability in these exposures across different patients, a 'one-dose-fits-all' approach is increasingly problematic. Therapeutic drug monitoring (TDM) of the β-lactams, the most widely used antibiotic class, is underutilized in certain populations. Clinical experience with β-lactam TDM remains relatively scarce. Patients most likely to benefit from such an intervention include the critically ill, the obese, the elderly and those with cystic fibrosis. Most centres actively performing β-lactam TDM target a minimum 100% of the time during the dosing interval that the free (unbound) concentration of antibiotic exceeds the MIC of the pathogen (100% fT>MIC), which is higher than a traditional target supported by in vitro data. Ideally, isolated pathogens should undergo MIC testing along with TDM on a regular basis, allowing clinicians to address the triad of bug, drug and patient ('mug') in equal measure.
Collapse
Affiliation(s)
- Angela Huttner
- Infection Control Programme, Geneva University Hospitals and Faculty of Medicine, Rue Gabrielle-Gentil-Perret 4, 1211 Geneva, Switzerland
| | - Stephan Harbarth
- Infection Control Programme, Geneva University Hospitals and Faculty of Medicine, Rue Gabrielle-Gentil-Perret 4, 1211 Geneva, Switzerland
| | - William W Hope
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK
| | - Jeffrey Lipman
- Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia Department of Intensive Care, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Jason A Roberts
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia Department of Intensive Care, Royal Brisbane and Women's Hospital, Brisbane, Australia Pharmacy Department, Royal Brisbane and Women's Hospital, Brisbane, Australia
| |
Collapse
|
37
|
Tabah A, De Waele J, Lipman J, Zahar JR, Cotta MO, Barton G, Timsit JF, Roberts JA. The ADMIN-ICU survey: a survey on antimicrobial dosing and monitoring in ICUs. J Antimicrob Chemother 2015; 70:2671-7. [PMID: 26169558 DOI: 10.1093/jac/dkv165] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 05/26/2015] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES There is little evidence and few guidelines to inform the most appropriate dosing and monitoring for antimicrobials in the ICU. We aimed to survey current practices around the world. METHODS An online structured questionnaire was developed and sent by e-mail to obtain information on local antimicrobial prescribing practices for glycopeptides, piperacillin/tazobactam, carbapenems, aminoglycosides and colistin. RESULTS A total of 402 professionals from 328 hospitals in 53 countries responded, of whom 78% were specialists in intensive care medicine (41% intensive care, 30% anaesthesiology, 14% internal medicine) and 12% were pharmacists. Vancomycin was used as a continuous infusion in 31% of units at a median (IQR) daily dose of 25 (25-30) mg/kg. Piperacillin/tazobactam was used as an extended infusion by 22% and as a continuous infusion by 7%. An extended infusion of carbapenem (meropenem or imipenem) was used by 27% and a continuous infusion by 5%. Colistin was used at a daily dose of 7.5 (3.9-9) million IU (MIU)/day, predominantly as a short infusion. The most commonly used aminoglycosides were gentamicin (55%) followed by amikacin (40%), with administration as a single daily dose reported in 94% of the cases. Gentamicin was used at a daily dose of 5 (5-6) mg/day and amikacin at a daily dose of 15 (15-20) mg/day. Therapeutic drug monitoring of vancomycin, piperacillin/tazobactam and meropenem was used by 74%, 1% and 2% of the respondents, respectively. Peak aminoglycoside concentrations were sampled daily by 28% and trough concentrations in all patients by 61% of the respondents. CONCLUSIONS We found wide variability in reported practices for antibiotic dosing and monitoring. Research is required to develop evidence-based guidelines to standardize practices.
Collapse
Affiliation(s)
- Alexis Tabah
- Intensive Care Unit, The Royal Brisbane and Women's Hospital, Brisbane, Australia Burns, Trauma, and Critical Care Research Centre, The University of Queensland, Brisbane, Australia
| | - Jan De Waele
- Department of Critical Care Medicine, Ghent University Hospital, Ghent, Belgium
| | - Jeffrey Lipman
- Intensive Care Unit, The Royal Brisbane and Women's Hospital, Brisbane, Australia Burns, Trauma, and Critical Care Research Centre, The University of Queensland, Brisbane, Australia Faculty of Health, Queensland University of Technology, Brisbane, Australia
| | - Jean Ralph Zahar
- Unité de Prévention et de Lutte contre les Infections Nosocomiales, CHU Angers - Université D'Angers, Angers, France
| | - Menino Osbert Cotta
- Intensive Care Unit, The Royal Brisbane and Women's Hospital, Brisbane, Australia Burns, Trauma, and Critical Care Research Centre, The University of Queensland, Brisbane, Australia
| | - Greg Barton
- Pharmacy Department, St Helens and Knowsley Teaching Hospitals NHS Trust, Liverpool, UK School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Jean-Francois Timsit
- APHP - Hopital Bichat - Reanimation Medicale et des maladies infectieuses, F-75018 Paris, France UMR 1137 - IAME Team 5 - DeSCID: Decision SCiences in Infectious Diseases, control and care; Inserm/Univ Paris Diderot, Sorbonne Paris Cité, F-75018 Paris, France
| | - Jason A Roberts
- Intensive Care Unit, The Royal Brisbane and Women's Hospital, Brisbane, Australia Burns, Trauma, and Critical Care Research Centre, The University of Queensland, Brisbane, Australia
| | | |
Collapse
|
38
|
De Waele JJ, Lipman J, Carlier M, Roberts JA. Subtleties in practical application of prolonged infusion of β-lactam antibiotics. Int J Antimicrob Agents 2015; 45:461-3. [PMID: 25749200 DOI: 10.1016/j.ijantimicag.2015.01.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 01/09/2015] [Indexed: 01/10/2023]
Abstract
Prolonged infusion (PI) of β-lactam antibiotics is increasingly used in order to optimise antibiotic exposure in critically ill patients. Physicians are often not aware of a number of subtleties that may jeopardise the treatment. In this clinically based paper, we stress pragmatic issues, such as the importance of a loading dose before PI, and discuss a number of important practicalities that are mandatory to benefit from the pharmacokinetic advantages of prolonged β-lactam antibiotic administration.
Collapse
Affiliation(s)
- Jan J De Waele
- Department of Critical Care Medicine, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium.
| | - Jeffrey Lipman
- Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Queensland, Australia; Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Mieke Carlier
- Department of Critical Care Medicine, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium; Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Jason A Roberts
- Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Queensland, Australia; Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia; Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| |
Collapse
|
39
|
Moxifloxacin pharmacokinetic profile and efficacy evaluation in empiric treatment of community-acquired pneumonia. Antimicrob Agents Chemother 2015; 59:2398-404. [PMID: 25666151 DOI: 10.1128/aac.04659-14] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
When antimicrobials are used empirically, pathogen MICs equal to clinical breakpoints or epidemiological cutoff values must be considered. This is to ensure that the most resistant pathogen subpopulation is appropriately targeted to prevent emergence of resistance. Accordingly, we determined the pharmacokinetic (PK) profile of moxifloxacin at 400 mg/day in 18 patients treated empirically for community-acquired pneumonia. We developed a population pharmacokinetic model to assess the potential efficacy of moxifloxacin and to simulate the maximal MICs for which recommended pharmacokinetic-pharmacodynamic (PK-PD) estimates are obtained. Moxifloxacin plasma concentrations were determined the day after therapy initiation using ultra-high-performance liquid chromatography. Peak drug concentrations (Cmax) and area under the free drug concentration-time curve from 0 to 24 h (fAUC0-24) values predicted for each patient were evaluated against epidemiological cutoff MIC values for Streptococcus pneumoniae, Haemophilus influenzae, and Legionella pneumophila. PK-PD targets adopted were a Cmax/MIC of ≥12.2 for all pathogens, an fAUC0-24/MIC of >34 for S. pneumoniae, and an fAUC0-24/MIC of >75 for H. influenzae and L. pneumophila. Individual predicted estimates for Cmax/MIC and fAUC0-24/MIC as well as simulated maximal MICs resulting in target attainment for oral and intravenous administration of the drug were suitable for S. pneumoniae and H. influenzae but not for L. pneumophila. These results indicate that caution must be taken when moxifloxacin is used as monotherapy to treat community-acquired pneumonia caused by L. pneumophila. In conclusion, this report reveals key information relevant to the empirical treatment of community-acquired pneumonia while highlighting the robust and flexible nature of this population pharmacokinetic model to predict therapeutic success. (Clinical Trials Registration no. NCT01983839.).
Collapse
|
40
|
Roberts JA, Udy AA, Jarrett P, Wallis SC, Hope WW, Sharma R, Kirkpatrick CMJ, Kruger PS, Roberts MS, Lipman J. Plasma and target-site subcutaneous tissue population pharmacokinetics and dosing simulations of cefazolin in post-trauma critically ill patients. J Antimicrob Chemother 2015; 70:1495-502. [PMID: 25608584 DOI: 10.1093/jac/dku564] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 12/15/2014] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVES The objective of this study was to describe the population pharmacokinetics of cefazolin in plasma and the interstitial fluid of subcutaneous tissue of post-trauma critically ill patients and provide clinically relevant dosing recommendations that result in optimal concentrations at the target site. PATIENTS AND METHODS This was a pharmacokinetic study in a tertiary referral ICU. We recruited 30 post-trauma critically ill adult patients and collected serial total and unbound plasma cefazolin concentrations. Interstitial fluid concentrations were determined using in vivo microdialysis. Population pharmacokinetic analysis and Monte Carlo simulations were undertaken with Pmetrics(®). Fractional target attainment against an MIC distribution for Staphylococcus aureus isolates was calculated. RESULTS The mean (SD) age, weight, APACHE II score and CLCR were 37.0 (14.1) years, 86.8 (22.7) kg, 16.9 (5.3) and 163 (44) mL/min, respectively. A three-compartment linear population pharmacokinetic model was most appropriate. Covariates included in the model were CLCR on drug clearance and serum albumin concentration and body weight on the volume of the central compartment. The fractional target attainment for a 1 g intravenous 8-hourly dose for a CLCR of 50 mL/min was 88%, whereas for a patient with a CLCR of 215 mL/min, a dose of 2 g 6-hourly achieved 84% fractional target attainment. CONCLUSIONS Clinicians should be mindful of the effects of elevated CLCR and serum albumin concentrations on dosing requirements for post-trauma critically ill patients.
Collapse
Affiliation(s)
- Jason A Roberts
- Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia Department of Intensive Care Medicine, Royal Brisbane and Womens' Hospital, Brisbane, Australia Pharmacy Department, Royal Brisbane and Womens' Hospital, Brisbane, Australia Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK
| | - Andrew A Udy
- Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia Department of Intensive Care and Hyperbaric Medicine, The Alfred Hospital, Melbourne, Australia
| | - Paul Jarrett
- Pharmacy Department, Royal Brisbane and Womens' Hospital, Brisbane, Australia
| | - Steven C Wallis
- Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia
| | - William W Hope
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK
| | - Raman Sharma
- Liverpool School for Tropical Medicine, University of Liverpool, Liverpool, UK
| | | | - Peter S Kruger
- Department of Intensive Care Medicine, Princess Alexandra Hospital, Brisbane, Australia
| | - Michael S Roberts
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Jeffrey Lipman
- Burns, Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Australia Department of Intensive Care Medicine, Royal Brisbane and Womens' Hospital, Brisbane, Australia
| |
Collapse
|
41
|
Adnan S, Ratnam S, Kumar S, Paterson D, Lipman J, Roberts J, Udy AA. Select critically ill patients at risk of augmented renal clearance: experience in a Malaysian intensive care unit. Anaesth Intensive Care 2014; 42:715-22. [PMID: 25342403 DOI: 10.1177/0310057x1404200606] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Augmented renal clearance (ARC) refers to increased solute elimination by the kidneys. ARC has considerable implications for altered drug concentrations. The aims of this study were to describe the prevalence of ARC in a select cohort of patients admitted to a Malaysian intensive care unit (ICU) and to compare measured and calculated creatinine clearances in this group. Patients with an expected ICU stay of <24 hours plus an admission serum creatinine concentration <120 µmol/l, were enrolled from May to July 2013. Twenty-four hour urinary collections and serum creatinine concentrations were used to measure creatinine clearance. A total of 49 patients were included, with a median age of 34 years. Most study participants were male and admitted after trauma. Thirty-nine percent were found to have ARC. These patients were more commonly admitted in emergency (P=0.03), although no other covariants were identified as predicting ARC, likely due to the inclusion criteria and the study being under-powered. Significant imprecision was demonstrated when comparing calculated Cockcroft-Gault creatinine clearance (Crcl) and measured Crcl. Bias was larger in ARC patients, with Cockcroft-Gault Crcl being significantly lower than measured Crcl (P <0.01) and demonstrating poor correlation (rs=-0.04). In conclusion, critically ill patients with 'normal' serum creatinine concentrations have varied Crcl. Many are at risk of ARC, which may necessitate individualised drug dosing. Furthermore, significant bias and imprecision between calculated and measured Crcl exists, suggesting clinicians should carefully consider which method they employ in assessing renal function.
Collapse
Affiliation(s)
- S Adnan
- Burns, Trauma and Critical Care Research Centre, Royal Brisbane and Women's Hospital, Herston, Queensland
| | - S Ratnam
- Hospital Sungai Buloh, Sungai Buloh, Malaysia
| | - S Kumar
- Hospital Sungai Buloh, Sungai Buloh, Malaysia
| | - D Paterson
- University of Queensland Centre for Clinical Research (UQCCR), Brisbane, Queensland
| | - J Lipman
- Burns, Trauma and Critical Care Research Centre, Royal Brisbane and Women's Hospital, Herston, Queensland
| | - J Roberts
- Burns, Trauma and Critical Care Research Centre, Royal Brisbane and Women's Hospital, Herston, Queensland
| | - A A Udy
- Intensive Care Unit, Alfred Hospital, Melbourne, Victoria
| |
Collapse
|
42
|
De Waele J, De Bus L. How to treat infections in a surgical intensive care unit. BMC Infect Dis 2014; 14:193. [PMID: 25430804 PMCID: PMC4289346 DOI: 10.1186/1471-2334-14-193] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 04/10/2014] [Indexed: 12/23/2022] Open
Abstract
The management of infections in surgical intensive care unit patients poses specific challenges. Although the overall approach to the patient is no different from other patients, diagnosis is often problematic. As in other infections, multidrug resistance is increasingly described, and changes in pharmacokinetics may require different dosing strategies. Also the need for source control adds a level of complexity to the management of the patient. Whereas source control was a purely surgical issue before, percutaneous drainage has emerged as an important alternative. Appropriate timing of source control often remains difficult to determine, but in most severe infections source control should not be delayed. But also the need for a multidisciplinary approach can make the decision making difficult. New concepts such as dedicated source control teams may further assist in selecting the most appropriate treatment strategy and further improve outcome of surgical severe sepsis patients.
Collapse
Affiliation(s)
- Jan De Waele
- Department of Critical Care Medicine, Ghent University Hospital, De Pintelaan 185, 9000 Gent, Belgium.
| | | |
Collapse
|
43
|
Wong G, Sime FB, Lipman J, Roberts JA. How do we use therapeutic drug monitoring to improve outcomes from severe infections in critically ill patients? BMC Infect Dis 2014; 14:288. [PMID: 25430961 PMCID: PMC4289211 DOI: 10.1186/1471-2334-14-288] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 05/23/2014] [Indexed: 11/16/2022] Open
Abstract
High mortality and morbidity rates associated with severe infections in the critically ill continue to be a significant issue for the healthcare system. In view of the diverse and unique pharmacokinetic profile of drugs in this patient population, there is increasing use of therapeutic drug monitoring (TDM) in attempt to optimize the exposure of antibiotics, improve clinical outcome and minimize the emergence of antibiotic resistance. Despite this, a beneficial clinical outcome for TDM of antibiotics has only been demonstrated for aminoglycosides in a general hospital patient population. Clinical outcome studies for other antibiotics remain elusive. Further, there is significant variability among institutions with respect to the practice of TDM including the selection of patients, sampling time for concentration monitoring, methodologies of antibiotic assay, selection of PK/PD targets as well as dose optimisation strategies. The aim of this paper is to review the available evidence relating to practices of antibiotic TDM, and describe how TDM can be applied to potentially improve outcomes from severe infections in the critically ill.
Collapse
Affiliation(s)
| | | | | | - Jason A Roberts
- Burns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Queensland, Australia.
| |
Collapse
|
44
|
The effect of pathophysiology on pharmacokinetics in the critically ill patient--concepts appraised by the example of antimicrobial agents. Adv Drug Deliv Rev 2014; 77:3-11. [PMID: 25038549 DOI: 10.1016/j.addr.2014.07.006] [Citation(s) in RCA: 297] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 06/30/2014] [Accepted: 07/08/2014] [Indexed: 12/14/2022]
Abstract
Critically ill patients are at high risk for development of life-threatening infection leading to sepsis and multiple organ failure. Adequate antimicrobial therapy is pivotal for optimizing the chances of survival. However, efficient dosing is problematic because pathophysiological changes associated with critical illness impact on pharmacokinetics of mainly hydrophilic antimicrobials. Concentrations of hydrophilic antimicrobials may be increased because of decreased renal clearance due to acute kidney injury. Alternatively, antimicrobial concentrations may be decreased because of increased volume of distribution and augmented renal clearance provoked by systemic inflammatory response syndrome, capillary leak, decreased protein binding and administration of intravenous fluids and inotropes. Often multiple conditions that may influence pharmacokinetics are present at the same time thereby excessively complicating the prediction of adequate concentrations. In general, conditions leading to underdosing are predominant. Yet, since prediction of serum concentrations remains difficult, therapeutic drug monitoring for individual fine-tuning of antimicrobial therapy seems the way forward.
Collapse
|
45
|
Varghese JM, Jarrett P, Wallis SC, Boots RJ, Kirkpatrick CMJ, Lipman J, Roberts JA. Are interstitial fluid concentrations of meropenem equivalent to plasma concentrations in critically ill patients receiving continuous renal replacement therapy? J Antimicrob Chemother 2014; 70:528-33. [PMID: 25336163 DOI: 10.1093/jac/dku413] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES To describe the interstitial fluid (ISF) and plasma pharmacokinetics of meropenem in patients on continuous venovenous haemodiafiltration (CVVHDF). PATIENTS AND METHODS This was a prospective observational pharmacokinetic study. Meropenem (500 mg) was administered every 8 h. CVVHDF was targeted as a 2-3 L/h exchange using a polyacrylonitrile filter with a surface area of 1.05 m2 and a blood flow rate of 200 mL/min. Serial blood (pre- and post-filter), filtrate/dialysate and ISF concentrations were measured on 2 days of treatment (Profiles A and B). Subcutaneous tissue ISF concentrations were determined using microdialysis. RESULTS A total of 384 samples were collected. During Profile A, the comparative median (IQR) ISF and plasma peak concentrations were 13.6 (12.0-16.8) and 40.7 (36.6-45.6) mg/L and the trough concentrations were 2.6 (2.4-3.4) and 4.9 (3.5-5.0) mg/L, respectively. During Profile B, the ISF trough concentrations increased by ∼40%. Meropenem ISF penetration was estimated at 63% (60%-69%) and 69% (65%-74%) for Profiles A and B, respectively, using comparative plasma and ISF AUCs. For Profile A, the plasma elimination t1/2 was 3.7 (3.3-4.0) h, the volume of distribution was 0.35 (0.25-0.46) L/kg, the total clearance was 4.1 (4.1-4.8) L/h and the CVVHDF clearance was 2.9 (2.7-3.1) L/h. CONCLUSIONS This is the first known report of concurrent plasma and ISF concentrations of a meropenem antibiotic during CVVHDF. We observed that the ISF concentrations of meropenem were significantly lower than the plasma concentrations, although the present dose was appropriate for infections caused by intermediately susceptible pathogens (MIC≤4 mg/L).
Collapse
Affiliation(s)
- Julie M Varghese
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Level 7, Block 6 Royal Brisbane and Women's Hospital, Brisbane, Queensland 4029, Australia
| | - Paul Jarrett
- Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Level 3, Ned Hanlon Building, Brisbane, Queensland 4029, Australia
| | - Steven C Wallis
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Level 7, Block 6 Royal Brisbane and Women's Hospital, Brisbane, Queensland 4029, Australia
| | - Robert J Boots
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Level 7, Block 6 Royal Brisbane and Women's Hospital, Brisbane, Queensland 4029, Australia Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Level 3, Ned Hanlon Building, Brisbane, Queensland 4029, Australia
| | - Carl M J Kirkpatrick
- Centre for Medicine Use and Safety, Monash University, 381 Royal Parade, Melbourne, Victoria 3052, Australia
| | - Jeffrey Lipman
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Level 7, Block 6 Royal Brisbane and Women's Hospital, Brisbane, Queensland 4029, Australia Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Level 3, Ned Hanlon Building, Brisbane, Queensland 4029, Australia
| | - Jason A Roberts
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Level 7, Block 6 Royal Brisbane and Women's Hospital, Brisbane, Queensland 4029, Australia Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Level 3, Ned Hanlon Building, Brisbane, Queensland 4029, Australia Pharmacy Department, Royal Brisbane and Women's Hospital, Level 1, Ned Hanlon Building, Brisbane, Queensland 4029, Australia
| |
Collapse
|
46
|
Buyle FM, Wallaert M, Beck N, Boelens J, Callens S, Claeys G, Deryckere S, Haegeman E, Leroux-Roels I, Sermijn E, Steel E, Robays H, Vandekerckhove L, Vermis K, Vogelaers D. Implementation of a multidisciplinary infectious diseases team in a tertiary hospital within an Antimicrobial Stewardship Program. Acta Clin Belg 2014; 69:320-6. [PMID: 25027808 DOI: 10.1179/2295333714y.0000000045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND In January 2011, as part of an antimicrobial stewardship program the Antimicrobial Management Team (AMT) at the Ghent University Hospital initiated a multidisciplinary Infectious Diseases Team (MIT) consisting of infectious diseases physicians, clinical microbiologists, and clinical pharmacists. The aim of this study is to describe the type and acceptance rate of recommendations provided by the MIT. METHOD Prospective, observational study in a tertiary care, university teaching hospital with 1062 beds in non-consecutive hospitalized adult patients, excluding intensive care units and paediatrics. RESULTS The MIT communicated 432 recommendations in 87 days observed. Of the 293 patients for whom a recommendation was made, the median age was 57 years (range: 16-91 years) and 169 (57·7%) were male. Skin or soft tissue infections (14%), respiratory tract infections (13%), infections without known focus (11%), abdominal infections (11%), and bone infections (8%) were most common. Recommendations were made to perform additional clinical investigation(s) [N = 137 (27%)], to adjust the dose of an antimicrobial drug [N = 42 (8%)], to stop an antimicrobial drug [N = 104 (21%)], to switch from a parenteral to an oral drug [N = 39 (8%)] or to initiate an antimicrobial drug [N = 178 (36%)], with an acceptance rate of 73·0%, 83·3%, 81·7%, 76·9%, and 84·0%, respectively. CONCLUSIONS The MIT formulated about five recommendations a day primarily focusing on pharmacotherapy, but also on clinical investigations. In both fields, a high acceptance rate was observed.
Collapse
|
47
|
Cies JJ, Moore WS, Dickerman MJ, Small C, Carella D, Chopra A, Parker J. Pharmacokinetics of Continuous-Infusion Meropenem in a Pediatric Patient Receiving Extracorporeal Life Support. Pharmacotherapy 2014; 34:e175-9. [DOI: 10.1002/phar.1476] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jeffrey J. Cies
- St. Christopher's Hospital for Children; Philadelphia Pennsylvania
- Drexel University College of Medicine; Philadelphia Pennsylvania
- Alfred I. duPont Hospital for Children; Wilmington Delaware
| | - Wayne S. Moore
- Alfred I. duPont Hospital for Children; Wilmington Delaware
| | - Mindy J. Dickerman
- St. Christopher's Hospital for Children; Philadelphia Pennsylvania
- Drexel University College of Medicine; Philadelphia Pennsylvania
| | - Christine Small
- St. Christopher's Hospital for Children; Philadelphia Pennsylvania
- Drexel University College of Medicine; Philadelphia Pennsylvania
| | - Dominick Carella
- St. Christopher's Hospital for Children; Philadelphia Pennsylvania
- Drexel University College of Medicine; Philadelphia Pennsylvania
| | - Arun Chopra
- NYU Langone Medical Center; New York New York
- NYU School of Medicine; New York New York
| | - Jason Parker
- St. Christopher's Hospital for Children; Philadelphia Pennsylvania
- Drexel University College of Medicine; Philadelphia Pennsylvania
| |
Collapse
|
48
|
Roberts JA, Udy AA, Bulitta JB, Stuart J, Jarrett P, Starr T, Lassig-Smith M, Roberts NA, Dunlop R, Hayashi Y, Wallis SC, Lipman J. Doripenem population pharmacokinetics and dosing requirements for critically ill patients receiving continuous venovenous haemodiafiltration. J Antimicrob Chemother 2014; 69:2508-16. [PMID: 24879665 DOI: 10.1093/jac/dku177] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Doripenem is a newer carbapenem with little data available to guide effective dosing during renal replacement therapy in critically ill patients. The objective of this study was to determine the population pharmacokinetics of doripenem in critically ill patients undergoing continuous venovenous haemodiafiltration (CVVHDF) for acute kidney injury (AKI). METHODS This was an observational pharmacokinetic study in 12 infected critically ill adult patients with AKI undergoing CVVHDF and receiving 500 mg of doripenem intravenously every 8 h as a 60 min infusion. Serial blood samples were taken on 2 days of treatment and used for population pharmacokinetic analysis with S-ADAPT. RESULTS The median (IQR) age was 62 (53-71) years, the median (IQR) weight was 77 (67-96) kg and the median (IQR) APACHE II score was 29 (19-32). The median blood, dialysate and replacement fluid rates were 200, 1000 and 1000 mL/h, respectively. A two-compartment linear model with doripenem clearance described by CVVHDF, renal or non-renal mechanisms was most appropriate. The mean value for total doripenem clearance was 4.46 L/h and volume of distribution was 38.0 L. Doripenem clearance by CVVHDF was significantly correlated with the replacement fluid flow rate and accounted for ∼30%-37% of total clearance. A dose of 500 mg intravenously every 8 h achieved favourable pharmacokinetic/pharmacodynamics for all patients up to an MIC of 4 mg/L. CONCLUSIONS This is the first paper describing the pharmacokinetics/pharmacodynamics of doripenem in critically ill patients with AKI receiving CVVHDF. A dose of 500 mg intravenously every 8 h was appropriate for our CVVHDF settings for infections caused by susceptible bacteria.
Collapse
Affiliation(s)
- Jason A Roberts
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, Australia Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Andrew A Udy
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, Australia Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Juergen B Bulitta
- Centre for Medicine Use and Safety, Monash University (Parkville Campus), Parkville, Australia
| | - Janine Stuart
- Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Paul Jarrett
- Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Therese Starr
- Royal Brisbane and Women's Hospital, Brisbane, Australia
| | | | | | - Rachel Dunlop
- Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Yoshiro Hayashi
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, Australia Department of Intensive Care Medicine, Kameda Medical Center, Kamogawa, Japan UQ Centre for Clinical Research, The University of Queensland, Brisbane, Australia
| | - Steven C Wallis
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, Australia
| | - Jeffrey Lipman
- Burns, Trauma and Critical Care Research Centre, University of Queensland, Brisbane, Australia Royal Brisbane and Women's Hospital, Brisbane, Australia
| |
Collapse
|
49
|
Roberts JA, Paul SK, Akova M, Bassetti M, De Waele JJ, Dimopoulos G, Kaukonen KM, Koulenti D, Martin C, Montravers P, Rello J, Rhodes A, Starr T, Wallis SC, Lipman J. Reply to Rhodes et al. Clin Infect Dis 2014; 59:907-8. [PMID: 24867785 DOI: 10.1093/cid/ciu403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Jason A Roberts
- Burns Trauma and Critical Care Research Centre, University of Queensland Royal Brisbane and Women's Hospital, Australia Department of Molecular and Clinical Pharmacology, University of Liverpool, United Kingdom
| | - Sanjoy K Paul
- Clinical Trials and Biostatistics Unit, Queensland Institute for Medical Research Berghofer Medical Research Institute, Australia Queensland Clinical Trials and Biostatistics Centre, School of Population Health, University of Queensland, Brisbane, Australia
| | - Murat Akova
- Hacettepe University, School of Medicine, Ankara, Turkey
| | - Matteo Bassetti
- Azienda Ospedaliera Universitaria Santa Maria della Misericordia, Udine, Italy
| | | | | | | | - Despoina Koulenti
- Burns Trauma and Critical Care Research Centre, University of Queensland Attikon University Hospital, Athens, Greece
| | - Claude Martin
- Hospital Nord, Marseille, France AzuRea Group, France
| | - Philippe Montravers
- Centre Hospitalier Universitaire Bichat-Claude Bernard, Assistance Publique Hopitaux de Paris, Université Paris VII, France
| | - Jordi Rello
- Centro de Investigacion Biomedica en Red, Vall d'Hebron Institut of Research, Universitat Autonoma de Barcelona, Spain
| | - Andrew Rhodes
- St George's Healthcare National Health Service Trust and St George's University of London, United Kingdom
| | | | - Steven C Wallis
- Burns Trauma and Critical Care Research Centre, University of Queensland
| | - Jeffrey Lipman
- Burns Trauma and Critical Care Research Centre, University of Queensland Royal Brisbane and Women's Hospital, Australia
| |
Collapse
|
50
|
Augmented renal clearance in the ICU: results of a multicenter observational study of renal function in critically ill patients with normal plasma creatinine concentrations*. Crit Care Med 2014; 42:520-7. [PMID: 24201175 DOI: 10.1097/ccm.0000000000000029] [Citation(s) in RCA: 201] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To describe the prevalence and natural history of augmented renal clearance in a cohort of recently admitted critically ill patients with normal plasma creatinine concentrations. DESIGN Multicenter, prospective, observational study. SETTING Four, tertiary-level, university-affiliated, ICUs in Australia, Singapore, Hong Kong, and Portugal. PATIENTS Study participants had to have an expected ICU length of stay more than 24 hours, no evidence of absolute renal impairment (admission plasma creatinine < 120 µmol/L), and no history of prior renal replacement therapy or chronic kidney disease. Convenience sampling was used at each participating site. INTERVENTIONS Eight-hour urinary creatinine clearances were collected daily, as the primary method of measuring renal function. Augmented renal clearance was defined by a creatinine clearance more than or equal to 130 mL/min/1.73 m. Additional demographic, physiological, therapeutic, and outcome data were recorded prospectively. MEASUREMENTS AND MAIN RESULTS Nine hundred thirty-two patients were admitted to the participating ICUs over the study period, and 281 of which were recruited into the study, contributing 1,660 individual creatinine clearance measures. The mean age (95% CI) was 54.4 years (52.5-56.4 yr), Acute Physiology and Chronic Health Evaluation II score was 16 (15.2-16.7), and ICU mortality was 8.5%. Overall, 65.1% manifested augmented renal clearance on at least one occasion during the first seven study days; the majority (74%) of whom did so on more than or equal to 50% of their creatinine clearance measures. Using a mixed-effects model, the presence of augmented renal clearance on study day 1 strongly predicted (p = 0.019) sustained elevation of creatinine clearance in these patients over the first week in ICU. CONCLUSIONS Augmented renal clearance appears to be a common finding in this patient group, with sustained elevation of creatinine clearance throughout the first week in ICU. Future studies should focus on the implications for accurate dosing of renally eliminated pharmaceuticals in patients with augmented renal clearance, in addition to the potential impact on individual clinical outcomes.
Collapse
|