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Yang JJ, Brett J, Sordo A, Reuter SE, Stocker SL, Day RO, Roberts DM, Carland JE. The Influence of a Therapeutic Drug Monitoring Service on Vancomycin-Associated Nephrotoxicity. J Clin Pharmacol 2024; 64:19-29. [PMID: 37779493 DOI: 10.1002/jcph.2363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/29/2023] [Indexed: 10/03/2023]
Abstract
Vancomycin's widespread use as the mainstay antibiotic against methicillin-resistant Staphylococcus aureus infections is complicated by its narrow therapeutic index. Therapeutic drug monitoring using area under the concentration-time curve (AUC)-guided dosing is recommended to optimize therapy and prevent vancomycin-associated nephrotoxicity (VAN). In 2018, a consultative therapeutic drug monitoring Advisory Service (the Service) was piloted at an Australian hospital to enable AUC-guided vancomycin dosing. This study sought to compare the incidence of VAN pre- and post-Service implementation. A 4-year retrospective observational study of intravenous vancomycin therapy (greater than 48 hours) in adults (aged 18 years or older), spanning 3 years before and 1-year after implementation of the Service was undertaken. Nephrotoxicity was defined as an increase in serum creatinine concentrations of 26.5 μmol/L or greater or 50% or more from baseline, on 2 or more consecutive days. Univariate analysis was performed to compare patients before and after implementation, and with and without VAN. Independent factors associated with VAN were identified using a multivariate model. In total, 971 courses of vancomycin therapy, administered to 781 patients, were included: 764 courses (603 patients) before implementation and 207 courses (163 patients) after implementation. The incidence of VAN decreased by 5% after Service implementation (15% before implementation vs 10% after implementation; P = .075). Independent factors associated with VAN were sepsis, heart failure, solid-organ transplant, concomitant piperacillin-tazobactam, and average vancomycin AUC during therapy. In conclusion, there was a nonsignificant trend toward a reduced incidence of VAN after the Service. Larger prospective studies are needed to confirm the efficacy of the Service.
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Affiliation(s)
- Jennifer J Yang
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital Sydney, NSW, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Australia
| | - Jonathan Brett
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital Sydney, NSW, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Australia
| | - Anna Sordo
- School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Stephanie E Reuter
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, Australia
| | - Sophie L Stocker
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital Sydney, NSW, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Australia
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Richard O Day
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital Sydney, NSW, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Australia
- School of Medical Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Darren M Roberts
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital Sydney, NSW, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Australia
- Drug Health Services, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Jane E Carland
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital Sydney, NSW, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Australia
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Sugita H, Okada N, Okamoto M, Abe M, Sekido M, Tanaka M, Tamatukuri T, Naito Y, Yoshikawa M, Inoue E, Tanaka H. Evaluation of the initial timing of infection control pharmacist-driven audit and monitoring of vancomycin therapy in patients with infectious diseases: A retrospective observational study. PLoS One 2023; 18:e0291096. [PMID: 37651455 PMCID: PMC10470910 DOI: 10.1371/journal.pone.0291096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/22/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND Early monitoring and feedback on the treatment of infectious diseases are some of the methods for optimising antimicrobial treatment throughout the treatment period. Prospective audits and feedback interventions have also been shown to improve antimicrobial use and reduce antimicrobial resistance. We examined the appropriate use of antimicrobials by focusing on the initial timing for audits and feedback intervention of antimicrobial prescription by Infection Control Team pharmacists. METHODS We conducted a retrospective observational study in a university hospital in Tokyo, Japan from 1 January 2019 to 31 May 2021. We retrospectively enrolled patients with infections and those patients suspected of having an infection, who were administered vancomycin and assessed at our hospital. The definition of primary outcome was the maintenance of target vancomycin trough blood concentrations of 10-20 μg/ml during treatment. Multivariable logistic regression and multivariate linear regression analyses were performed to test the effectiveness of the initial timing of the intervention by Infection Control Team pharmacists as the explanatory variable. RESULTS A total of 638 patients were included in this study, with a median age of 69 years (interquartile range: 54-78 years). Multivariable logistic regression revealed that the maintenance of target vancomycin trough concentrations was not associated with the timing of the audit and the initiation of monitoring by Infection Control Team pharmacists (adjusted odds ratio: 0.99, 95% confidence interval: 0.99-1.00, p = 0.990). Multivariate linear regression revealed that the duration of vancomycin administration was significantly correlated with the timing of initiation of monitoring by Infection Control Team pharmacists (adjusted estimate: 0.0227, standard error: 0.0051, p = 0.012). CONCLUSIONS Our study showed that early initiation of a comprehensive audit and monitoring by Infection Control Team pharmacists did not affect the maintenance of the target vancomycin trough blood concentration. However, it reduced the duration of vancomycin administration.
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Affiliation(s)
- Hideki Sugita
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
| | - Natsumi Okada
- Department of Pharmacy, St. Luke’s International Hospital, Chuo-ku, Tokyo, Japan
| | - Matoka Okamoto
- Division of Clinical Nutrition and Metabolism, Department of Clinical Pharmacy, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
| | - Masakazu Abe
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, St. Luke’s International Hospital, Chuo-ku, Tokyo, Japan
| | - Masae Sekido
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, Showa University Koto Toyosu Hospital, Koto-ku, Tokyo, Japan
| | - Michiko Tanaka
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
| | - Tatsuro Tamatukuri
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, Showa University Hospital, Shinagawa-ku, Tokyo, Japan
| | - Yuika Naito
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, Showa University Hospital, Shinagawa-ku, Tokyo, Japan
| | - Masayuki Yoshikawa
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, Showa University Hospital, Shinagawa-ku, Tokyo, Japan
| | - Eisuke Inoue
- Showa University Research Administration Center, Showa University, Shinagawa-ku, Tokyo, Japan
| | - Hironori Tanaka
- Department of Hospital Pharmaceutics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
- Department of Pharmacy, Showa University Hospital East Branch, Shinagawa-ku, Tokyo, Japan
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Bradley N, Ng K. Evaluation of Real-World Vancomycin Dosing and Attainment of Therapeutic Drug Monitoring Targets. PHARMACY 2023; 11:95. [PMID: 37368421 DOI: 10.3390/pharmacy11030095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/08/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023] Open
Abstract
In 2020, the Infectious Diseases Society of America (IDSA) recommended a change in vancomycin therapeutic drug monitoring from trough-based to AUC/MIC-based to optimize vancomycin's efficacy and reduce nephrotoxicity. Many hospitals have not implemented this change due to barriers such as the cost of AUC/MIC software and lack of provider familiarity. The purpose of this study was to determine the rate of AUC/MIC ratio target attainment using current trough-based vancomycin dosing practices at a city hospital. The rates of acute kidney injury (AKI) were also evaluated. Vancomycin orders were reviewed retrospectively to determine the expected AUC/MIC ratios using first-order pharmacokinetic equations over a 7-month period. Orders were excluded if they were written for a one-time dose, for individuals less than 18 years of age, or for those on hemodialysis. A total of 305 vancomycin orders were included in this review. Overall, 27.9% (85/305) of vancomycin orders attained the AUC/MIC ratio target of 400-600 mg·h/L as recommended by the guidelines. Nearly 35% (106/305) achieved AUC/MIC ratios below 400 mg·h/L and 37.4% (114/305) achieved AUC/MIC ratios above 600 mg·h/L. Orders for obese patients were significantly more likely to have below the target AUC/MIC ratios (68% vs. 23.9%, X2 48.48, p < 0.00001) and non-obese patients were significantly more likely to have above the target AUC/MIC ratios (45.7% vs. 12%, X2 27.36, p < 0.00001). The overall rate of acute kidney injury observed was 2.6%. Most vancomycin orders did not attain therapeutic drug monitoring targets, reflecting the ongoing clinical challenge of optimizing vancomycin doses and implementing new guideline recommendations.
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Affiliation(s)
- Nicole Bradley
- College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Kimberly Ng
- College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
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Alghanem SS, Albassam A, Al-Rashidi N, Bin Haidar Z. Awareness, perception, and barriers of healthcare providers toward the revised consensus guideline for therapeutic monitoring of vancomycin. Saudi Pharm J 2023; 31:955-961. [PMID: 37234339 PMCID: PMC10205763 DOI: 10.1016/j.jsps.2023.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
Background A revised consensus guideline published in 2020 recommended transitioning vancomycin monitoring to the area under the concentration-time curve over 24 h to minimum inhibitory concentration (AUC24/MIC). The decision to transition to AUC24/MIC monitoring or to continue trough-based monitoring is made at the institutional level and is influenced by several factors, including healthcare providers and system-related factors. Changing current practices is expected to be difficult, and it is important to understand healthcare providers' perceptions and potential barriers before the transition. This study assessed the awareness and perception of physicians and pharmacists toward the revised guideline and identified barriers to their implementation in Kuwait. Methods A cross-sectional survey that employed a self-administered questionnaire was used. A random sample of physicians (n = 390), clinical microbiologists (n = 37), and clinical pharmacists (n = 48) across six Kuwaiti public hospitals were surveyed. Descriptive and comparative statistical analyses were performed. Factors associated with awareness and perceptions among the participants were identified. Results The response rate was 85.3% (n = 431). Participants had a high (median = 75%) awareness score for the updated vancomycin guideline, as well as a positive perception (median = 5). The main factor identified to affect the awareness and perception of participants following the group analysis was the years of experience. The main barriers identified were a lack of training to perform vancomycin AUC24 calculations, a lack of accurate documentation sample time, and a long turnaround time for serum levels, which might hinder the implementation of the updated guideline. Conclusion Physicians, clinical microbiologists, and pharmacists working in Kuwait public hospitals were aware of the 2020 vancomycin monitoring guidelines with positive perceptions. Participants agreed on the several barriers to transitioning to the AUC24/MIC approach, which should be considered by stakeholders before implementation.
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Affiliation(s)
- Sarah S. Alghanem
- Department of Pharmacy Practice, College of Pharmacy, Kuwait University, Safat 13110, Kuwait
| | - Abdullah Albassam
- Department of Pharmacy Practice, College of Pharmacy, Kuwait University, Safat 13110, Kuwait
| | - Nwayer Al-Rashidi
- Department of Pharmacy, Alfarwania Hospital, Ministry of Health, Kuwait
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Ren F, Liu Y, Li S, Li X, Wu X, Li Y, Zhang Z. Therapeutic drug monitoring of free vancomycin concentration in practice: A new analytical technique based on the HFCF-UF sample separation method. Biomed Chromatogr 2023; 37:e5559. [PMID: 36478261 DOI: 10.1002/bmc.5559] [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: 09/17/2022] [Revised: 11/22/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
The aim of this study was to establish a method for free vancomycin concentration determination in human plasma and apply it to clinical therapeutic drug monitoring (TDM). The unbound vancomycin in plasma was separated by the hollow fiber centrifugal ultrafiltration (HFCF-UF) technique and analyzed by HPLC. Chromatographic conditions were optimized, the specificity, linearity, precision, recovery and stability of the method were examined, and plasma samples of patients were measured. The standard curve for free vancomycin is y = 0.0277x - 0.0080 with good linearity within 0.25-50 μg·mL-1 . The relative and absolute recovery rates for vancomycin were 98.63-101.0% and 88.41-101.2%, respectively. The intraday and interday precision RSDs were <10%. Plasma was stable under several conditions. The TDM value of the free vancomycin concentration of 20 patients was 0.99-38.51 μg·mL-1 , and the correlation between the free and total concentrations was not significant. The unbound fraction of vancomycin ranged from 25.5 to 84.8%, with large variation. The operation of free vancomycin separation by HFCF-UF was simple and suitable for TDM in practice. The unbound fraction of vancomycin in clinical samples varied significantly between individuals. It is recommended to perform free concentration TDM in critically ill patients.
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Affiliation(s)
- Feifei Ren
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yixin Liu
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Shan Li
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiangchen Li
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xikun Wu
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yaqian Li
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhiqing Zhang
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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Imai S, Kadomura S, Miyai T, Kashiwagi H, Sato Y, Sugawara M, Takekuma Y. Using Japanese big data to investigate novel factors and their high-risk combinations that affect vancomycin-induced nephrotoxicity. Br J Clin Pharmacol 2022; 88:3241-3255. [PMID: 35106797 DOI: 10.1111/bcp.15252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 11/28/2022] Open
Abstract
AIMS Several factors related to vancomycin-induced nephrotoxicity (VIN) have not yet been clarified. In the present study, we used Japanese big data to investigate novel factors and their high-risk combinations that influence VIN. METHODS We employed a large Japanese electronic medical record database and included patients who had been administered intravenous vancomycin between June 2000 and December 2020. VIN was defined as an increase in serum creatinine ≥0.5 mg/dL or 1.5-fold higher than the baseline. The outcomes were: (1) factors affecting VIN that were identified using multiple logistic regression analysis, and (2) combinations of factors that affect the risk of VIN according to a decision tree analysis, which is a typical machine learning method. RESULTS Of the 7,306 patients that were enrolled, VIN occurred in 14.2% of them (1,035). A multivariate analysis extracted 22 variables as independent factors. Concomitant ramelteon use (odds ratio; 0.701, 95% confidence interval; 0.512-0.959), ward pharmacy service (0.741, 0.638-0.861), duration of VCM <7 days (0.748, 0.623-0.899) and trough concentrations 10-15 mg/L (0.668, 0.556-0.802) reduce the risk of VIN. Meanwhile, concomitant piperacillin-tazobactam use (2.056, 1.754-2.409) and piperacillin use (2.868, 1.298-6.338) increase the risk. The decision tree analysis showed that a combination of vancomycin trough concentrations ≥20 mg/L and concomitant piperacillin-tazobactam use was associated with the highest risk. CONCLUSIONS We revealed that the concomitant ramelteon use and ward pharmacy service may decrease the risk of VIN, while the concomitant use of not only piperacillin-tazobactam but also piperacillin may increase the risk.
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Affiliation(s)
- Shungo Imai
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Shota Kadomura
- Department of Pharmacy, Japan Community Healthcare Organization Sapporo Hokushin Hospital, Sapporo, Japan
| | - Takayuki Miyai
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Hitoshi Kashiwagi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Yuki Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Mitsuru Sugawara
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.,Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan.,Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo, Japan
| | - Yoh Takekuma
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
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Moore DC, Elmes JB, Gebru T, Lavery LA, Pellegrino A, Plesca D. Implementation, utilization, and evaluation of a pharmacist-driven romiplostim dosing service for patients with immune thrombocytopenia at a multisite cancer centre. J Oncol Pharm Pract 2022; 28:613-617. [DOI: 10.1177/10781552211073763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction Romiplostim is a thrombopoietin receptor agonist approved for the treatment of patients with chronic immune thrombocytopenia who have had an insufficient response to corticosteroids, immune globulin, or splenectomy. Dose adjustments of romiplostim are based on platelet counts and follow a dosing schema that requires frequent monitoring. As a quality improvement initiative to increase clinical efficiency and promote clinical pharmacy services at our institution, we developed a collaborative practice agreement and implemented a novel pharmacist-driven romiplostim dosing protocol. Methods A retrospective chart review was conducted to evaluate the acceptance, utilization, and impact of the pharmacist-driven romiplostim dosing service. The primary outcome of our analysis was the adoption rate by providers of the romiplostim pharmacist dosing service. Secondary endpoints were focused on patients newly initiating romiplostim on the dosing service and included platelet responses and number of dose adjustments by a pharmacist Results A total of 54 patients received romiplostim in our analysis: 25 patients who had already been receiving romiplostim and 29 patients who newly initiated romiplostim during the study period. Of the 29 patients newly initiating romiplostim, 27 (93%) had their dosing managed by a pharmacist Twenty-one patients (84%) and 18 patients (75%) achieved an initial and durable response with romiplostim, respectively. Pharmacists made a median of 3 dose adjustments to romiplostim per patient. Conclusion The implementation of a pharmacist-driven romiplostim dosing service led to a significant adoption and utilization by physicians at our health system.
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Affiliation(s)
- Donald C. Moore
- Department of Pharmacy, Levine Cancer Institute, 100 Medical Park Drive, Concord NC 28025
| | - Joseph B. Elmes
- Department of Pharmacy, Levine Cancer Institute, 100 Medical Park Drive, Concord NC 28025
| | - Tsion Gebru
- Department of Pharmacy, Levine Cancer Institute, 4525 Cameron Valley Pkwy, Charlotte, NC 28211
| | - Lesli A. Lavery
- Department of Pharmacy, Levine Cancer Institute, 10660 Park Rd, Charlotte, NC 28210
| | - Annie Pellegrino
- Department of Pharmacy, Levine Cancer Institute, 1656 Riverchase Blvd, Rock Hill, SC 29732
| | - Dragos Plesca
- Department of Pharmacy, Levine Cancer Institute, 1021 Morehead Medical Dr, Charlotte, NC 28204
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