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Vancomycin pharmacokinetics and pharmacodynamics

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https://www.readbyqxmd.com/read/29222405/multiple-weekly-dalbavancin-dosing-for-the-treatment-of-native-vertebral-osteomyelitis-caused-by-methicillin-resistant-staphylococcus-aureus-a-case-report
#1
Thamer A Almangour, Valerie Fletcher, Mohammed Alessa, Abdullah A Alhifany, Deanne Tabb
BACKGROUND Native vertebral osteomyelitis (NVO) is a common form of hematogenous osteomyelitis, with Staphylococcus aureus (S. aureus) being the most commonly isolated organism. Dalbavancin is approved by the US Food and Drug Administration (FDA) for the treatment of acute bacterial skin and skin structure infections (ABSSSI) and has a sufficiently promising pharmacokinetic and pharmacodynamic profile to be considered for the treatment of vertebral osteomyelitis. We describe here what is probably the first reported case of using multiple weekly dalbavancin to treat a complicated methicillin-resistant Staphylococcus aureus (MRSA) bacteremia and vertebral osteomyelitis...
December 9, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29109163/evaluation-of-oritavancin-dosing-strategies-against-vancomycin-resistant-enterococcus-faecium-isolates-with-or-without-reduced-susceptibility-to-daptomycin-in-an-in-vitro-pharmacokinetic-pharmacodynamic-model
#2
Adam Belley, Francis A Arhin, Greg Moeck
Clinical development of nonsusceptibility to the lipopeptide antibiotic daptomycin remains a serious concern during therapy for infections caused by vancomycin-resistant Enterococcus faecium (VREfm). The long-acting lipoglycopeptide oritavancin exhibits potent in vitro activity against VREfm although its safety and efficacy in treating clinical VREfm infections have not been established. In this study, novel dosing regimens of daptomycin and oritavancin were assessed against both VREfm and daptomycin-nonsusceptible VREfm isolates in an in vitro pharmacokinetic/pharmacodynamic model...
November 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29063877/optimisation-of-antimicrobial-dosing-based-on-pharmacokinetic-and-pharmacodynamic-principles
#3
REVIEW
Grace Si Ru Hoo, Yi Xin Liew, Andrea Lay-Hoon Kwa
While suboptimal dosing of antimicrobials has been attributed to poorer clinical outcomes, clinical cure and mortality advantages have been demonstrated when target pharmacokinetic (PK) and pharmacodynamic (PD) indices for various classes of antimicrobials were achieved to maximise antibiotic activity. Dosing optimisation requires a good knowledge of PK/PD principles. This review serves to provide a foundation in PK/PD principles for the commonly prescribed antibiotics (β-lactams, vancomycin, fluoroquinolones and aminoglycosides), as well as dosing considerations in special populations (critically ill and obese patients)...
July 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29063519/clinical-pharmacokinetics-and-pharmacodynamics-of-oxazolidinones
#4
REVIEW
Claire Roger, Jason A Roberts, Laurent Muller
Oxazolidinones are a class of synthetic antimicrobial agents with potent activity against a wide range of multidrug-resistant Gram-positive pathogens including methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci. Oxazolidinones exhibit their antibacterial effects by inhibiting protein synthesis acting on the ribosomal 50S subunit of the bacteria and thus preventing formation of a functional 70S initiation complex. Currently, two oxazolidinones have been approved by the US Food and Drug Administration: linezolid and more recently tedizolid...
October 23, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/29056665/review-on-usage-of-vancomycin-in-livestock-and-humans-maintaining-its-efficacy-prevention-of-resistance-and-alternative-therapy
#5
REVIEW
Panditharathnalage Nishantha Kumara Wijesekara, Wikum Widuranga Kumbukgolla, Jayaweera Arachchige Asela Sampath Jayaweera, Diwan Rawat
Vancomycin is one of the "last-line" classes of antibiotics used in the treatment of life-threatening infections caused by Gram-positive bacteria. Even though vancomycin was discovered in the 1950s, it was widely used after the 1980s for the treatment of infections caused by methicillin-resistant Staphylococci, as the prevalence of these strains were increased. However, it is currently evident that vancomycin-resistant Staphylococcus aureus and vancomycin-resistant Enterococci have developed for various reasons, including the use of avaparcin-an analog of vancomycin-as a feed additive in livestock...
January 26, 2017: Veterinary Sciences
https://www.readbyqxmd.com/read/29027654/pharmacokinetic-drug-drug-interactions-in-the-intensive-care-unit-single-centre-experience-and-literature-review
#6
Piotr Łój, Aleksanda Olender, Weronika Ślęzak, Łukasz J Krzych
BACKGROUND: Drug-drug interactions constitute a serious health hazard in everyday clinical practice in critically ill patients. Drug-drug interactions may be pharmacokinetic or pharmacodynamic in their nature. We aimed to investigate the quantity and quality of possible drug-drug interactions, and their possible side effects in intensive care unit patients in a 12-month period. METHODS: This retrospective study covered data on pharmacological treatment of 43 consecutive patients (11 females, 32 males) aged 62 ± 15 years, hospitalized between January 2015 and February 2016...
October 13, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28936957/-pk-pd-of-vancomycin-in-patients-with-severe-acute-pancreatitis-combined-with-augmented-renal-clearance
#7
Juan He, Enqiang Mao, Feng Jing, Huiting Jiang, Wenyun Xu, Wanhua Yang, Erzhen Chen
OBJECTIVE: To evaluate the serum trough concentration and the pharmacokinetics/pharmacodynamics (PK/PD) of vancomycin in patients with severe acute pancreatitis (SAP), and analyze the effect of vancomycin continuous infusion for optimizing the characteristics of its PK/PD. METHODS: The inhospital patients with SAP received vancomycin treatment and admitted to emergency intensive care unit (EICU) of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine from January 2011 to December 2016 were enrolled...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28905331/antibiotic-distribution-into-cerebrospinal-fluid-can-dosing-safely-account-for-drug-and-disease-factors-in-the-treatment-of-ventriculostomy-associated-infections
#8
Nilesh Kumta, Jason A Roberts, Jeffrey Lipman, Menino Osbert Cotta
Ventriculostomy-associated infections, or ventriculitis, in critically ill patients are associated with considerable morbidity. Efficacious antibiotic dosing for the treatment of these infections may be complicated by altered antibiotic concentrations in the cerebrospinal fluid due to variable meningeal inflammation and antibiotic properties. Therefore, doses used to treat infections with a higher degree of meningeal inflammation (such as meningitis) may often fail to achieve equivalent exposures in patients with ventriculostomy-associated infections such as ventriculitis...
September 13, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28807910/24-hour-pharmacokinetic-relationships-for-vancomycin-and-novel-urinary-biomarkers-of-acute-kidney-injury
#9
J Nicholas O'Donnell, Nathaniel J Rhodes, Thomas P Lodise, Walter C Prozialeck, Cristina M Miglis, Medha D Joshi, Natarajan Venkatesan, Gwendolyn Pais, Cameron Cluff, Peter C Lamar, Seema Briyal, John Z Day, Anil Gulati, Marc H Scheetz
Vancomycin has been associated with acute kidney injury in preclinical and clinical settings; however, the precise exposure profiles associated with vancomycin-induced acute kidney injury have not been defined. We sought to determine pharmacokinetic/pharmacodynamics indices associated with the development of acute kidney injury using sensitive urinary biomarkers. Male Sprague-Dawley rats received clinical-grade vancomycin or normal saline as an intraperitoneal injection. Total daily doses between 0 and 400 mg/kg of body weight were administered as a single dose or 2 divided doses over a 24-h period...
November 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28776198/determining-the-optimal-vancomycin-daily-dose-for-pediatrics-a-meta-analysis
#10
REVIEW
Geisa Cristina da Silva Alves, Samuel Dutra da Silva, Virginia Paula Frade, Danielle Rodrigues, André de Oliveira Baldoni, Whocely Victor de Castro, Cristina Sanches
OBJECTIVE: The objective of this study was to check which initial dose of vancomycin is needed to achieve the therapeutic target that is currently used in pediatrics. METHODS: The search was conducted in the following data sources: Pubmed (1980-2017), the Cochrane Library, and Embase (1986-2017) and the references of the published studies; searches were performed using the key terms: child, children, pediatrics, infants and adolescents, vancomycin, pharmacokinetics, and pharmacodynamics...
November 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28650363/population-pharmacokinetics-and-pharmacodynamic-target-attainment-of-vancomycin-in-neonates-on-extracorporeal-life-support
#11
Jeffrey J Cies, Wayne S Moore, Kristen Nichols, Chad A Knoderer, Dominick M Carella, Arun Chopra
OBJECTIVES: To evaluate the population pharmacokinetics and pharmacodynamic target attainment of vancomycin in neonates with a contemporary ¼-inch extracorporeal life support circuit with a Quadrox-iD Pediatric oxygenator (Maquet Cardiovascular, LLC, Wayne, NJ). DESIGN: Retrospective medical record review. SETTING: Two free-standing tertiary/quaternary pediatric children's hospitals. PATIENTS: Neonates receiving either veno-arterial or veno-venous extracorporeal life support and vancomycin for empiric or definitive therapy with resulting serum concentrations...
June 22, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28532398/clinical-outcomes-of-linezolid-and-vancomycin-in-patients-with-nosocomial-pneumonia-caused-by-methicillin-resistant-staphylococcus-aureus-stratified-by-baseline-renal-function-a-retrospective-cohort-analysis
#12
Ping Liu, Blair Capitano, Amy Stein, Ali A El-Solh
BACKGROUND: The primary objective of this study is to assess whether baseline renal function impacts treatment outcomes of linezolid and vancomycin (with a dose-optimized regimen) for methicillin-resistant Staphylococcus aureus (MRSA) pneumonia. METHODS: We conducted a retrospective cohort analysis of data generated from a prospective, randomized, controlled clinical trial (NCT 00084266). The analysis included 405 patients with culture-proven MRSA pneumonia. Baseline renal function was stratified based on creatinine clearance...
May 22, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28494340/simple-and-rapid-quantification-of-vancomycin-in-serum-urine-and-peritoneal-pleural-effusion-via-uhplc-ms-ms-applicable-to-personalized-antibiotic-dosing-research
#13
Lenka Javorska, Lenka Kujovska Krcmova, Petr Solich, Milan Kaska
Management of the therapy of life-threatening bacterial infection is extremely based on an optimal antibiotic treatment. Achieving the correct vancomycin dosage in blood and target tissues can be complicated in special situations, e.g., where large fluid sequestration and/or acute renal failure occur. A UHPLC-MS/MS method operating in electrospray (ESI) positive ion mode was applied for the determination of vancomycin in serum, urine and peritoneal/pleural effusion. Sample pretreatment was composed of dilution and simple protein precipitation where only a small volume (50μL) of serum, urine or peritoneal/pleural effusion was required...
August 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28475731/evaluation-of-daptomycin-combinations-with-cephalosporins-or-gentamicin-against-streptococcus-mitis-group-strains-in-an-in-vitro-model-of-simulated-endocardial-vegetations-sevs
#14
Juwon Yim, Jordan R Smith, Nivedita B Singh, Seth Rice, Kyle Stamper, Cristina Garcia de la Maria, Arnold S Bayer, Nagendra N Mishra, José M Miró, Truc T Tran, Cesar A Arias, Paul Sullam, Michael J Rybak
Objectives: Among viridans group streptococcal infective endocarditis (IE), the Streptococcus mitis group is the most common aetiological organism. Treatment of IE caused by the S. mitis group is challenging due to the high frequency of β-lactam resistance, drug allergy and intolerability of mainstay antimicrobial agents such as vancomycin or gentamicin. Daptomycin has been suggested as an alternative therapeutic option in these scenarios based on its excellent susceptibility profile against S...
August 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28416551/comparative-pharmacodynamics-of-telavancin-and-vancomycin-in-the-neutropenic-murine-thigh-and-lung-infection-models-against-staphylococcus-aureus
#15
Alexander J Lepak, Miao Zhao, David R Andes
The pharmacodynamics of telavancin and vancomycin were compared using neutropenic murine thigh and lung infection models. Four Staphylococcus aureus strains were included. The telavancin MIC ranged from 0.06 to 0.25 mg/liter, and the vancomycin MIC ranged from 1 to 4 mg/liter. The plasma pharmacokinetics of escalating doses (1.25, 5, 20, and 80 mg/kg of body weight) of telavancin and vancomycin were linear over the dose range. Epithelial lining fluid (ELF) pharmacokinetics for each drug revealed that penetration into the ELF mirrored the percentage of the free fraction (the fraction not protein bound) in plasma for each drug...
July 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28350900/gram-positive-bacterial-infections-research-priorities-accomplishments-and-future-directions-of-the-antibacterial-resistance-leadership-group
#16
Sarah B Doernberg, Thomas P Lodise, Joshua T Thaden, Jose M Munita, Sara E Cosgrove, Cesar A Arias, Helen W Boucher, G Ralph Corey, Franklin D Lowy, Barbara Murray, Loren G Miller, Thomas L Holland
Antimicrobial resistance in gram-positive bacteria remains a challenge in infectious diseases. The mission of the Gram-Positive Committee of the Antibacterial Resistance Leadership Group (ARLG) is to advance knowledge in the prevention, management, and treatment of these challenging infections to improve patient outcomes. Our committee has prioritized projects involving methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE) due to the scope of the medical threat posed by these pathogens...
March 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28264598/review-of-the-pharmacokinetics-of-dalbavancin-a-recently-approved-lipoglycopeptide-antibiotic
#17
REVIEW
Ranjeet Prasad Dash, R Jayachandra Babu, Nuggehally R Srinivas
Dalbavancin, a recently approved glycopeptide antibiotic, whose disposition is not affected by renal function as compared to vancomycin is used to treat serious infections caused by Staphylococci and Streptococci including multiple drug-resistant strains. Although reviews of the pharmacodynamic and clinical efficacy of dalbavancin have been published, a comprehensive overview of the pharmacokinetic properties including distribution and disposition in animals and humans has not been published. The aim of this review is to summarize the pharmacokinetics of dalbavancin, which justifies the intravenous dosing regimens and to provide considerations and perspectives with regard to dosing strategies...
July 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28242672/establishment-of-an-auc0-24-threshold-for-nephrotoxicity-is-a-step-towards-individualized-vancomycin-dosing-for-methicillin-resistant-staphylococcus-aureus-bacteremia
#18
R Chavada, N Ghosh, I Sandaradura, M Maley, S J Van Hal
Unlike vancomycin trough concentrations, data on the utility of vancomycin pharmacokinetic (PK) parameters, namely, the area under the concentration-time curve from 0 to 24 h (AUC0-24), in predicting acute kidney injury (AKI) are limited. Our aim was to investigate this relationship in patients receiving vancomycin therapy for methicillin-resistant Staphylococcus aureus bacteremia (MRSA-B). A single-center retrospective observational cohort study involving 127 consecutive MRSA-B patients was conducted to examine the incidence of AKI (defined as serum creatinine of ≥0...
May 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28129815/-dalbavancin-breakpoints-and-recommendations-for-in-vitro-study-of-its-activity
#19
Rafael Cantón, María Díez-Aguilar, María Isabel Morosini
Dalbavancin is a semisynthetic lipoglycopeptide approved for the treatment of acute skin and soft tissue infections due to Gram-positive microorganisms susceptible to this antimicrobial agent. The FDA (Food and Drug Administration) and the EUCAST (European Committee on Antimicrobial Susceptibility Testing) have established clinical breakpoints to interpret the results of the antibiogram (expressed as MIC [minimum inhibitory concentration]) with approved doses (1g intravenously [IV] followed by 0.5g IV at day 8 or 1...
January 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28118218/obesity-and-skin-and-soft-tissue-infections-how-to-optimize-antimicrobial-usage-for-prevention-and-treatment
#20
Mordechai Grupper, David P Nicolau
PURPOSE OF REVIEW: Skin and soft tissue infections (SSTIs) are prevalent in the obese population, with rising trend expected. Although numerous antibiotics are available for the prevention and treatment of SSTIs, their characterization in obese patients is not a regulatory mandate. Consequently, information that carries importance for optimizing the dosing regimen in the obese population may not be readily available. This review focuses on the most recent pharmacokinetic and pharmacodynamic data on this topic with attention to cefazolin for surgical prophylaxis as well as antibiotics that are active against methicillin-resistant Staphylococcus aureus (MRSA)...
April 2017: Current Opinion in Infectious Diseases
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