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Doripenem

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https://www.readbyqxmd.com/read/28769004/pharmacokinetic-pharmacodynamic-analysis-for-doripenem-regimens-in-intensive-care-unit-patient
#1
Ryota Tanaka, Yuhki Sato, Koji Goto, Norihisa Yasuda, Yoshifumi Ohchi, Yosuke Suzuki, Tamio Ueno, Kentaro Ito, Tetsuya Kaneko, Shusaku Kurogi, Ko Nonoshita, Hiroki Itoh
Doripenem (DRPM) is a broad-spectrum antibacterial agent often used as empirical therapy for critically ill patients, although there is a lack of studies validating the recommended dosage regimen for patients admitted to intensive care unit (ICU), based on pharmacokinetic (PK)/pharmacodynamic (PD) index. In this study, we estimated the free time above minimum inhibitory concentration (fT>MIC (%)) of DRPM using population PK analysis of 12 patients in ICU, and evaluated the validity of the dosage regimen stratified by creatinine clearance...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28760902/mycobacterium-abscessus-l-d-transpeptidases-are-susceptible-to-inactivation-by-carbapenems-and-cephalosporins-but-not-penicillins
#2
Pankaj Kumar, Varsha Chauhan, José Rogério A Silva, Jerônimo Lameira, Felipe d'Andrea, Shaogang Li, Stephan L Ginell, Joel S Freundlich, Cláudio Nahum Alves, Scott Bailey, Keira A Cohen, Gyanu Lamichhane
As a growing number of clinical isolates of Mycobacterium abscessus are resistant to most antibiotics, new treatment options that are effective against these drug-resistant strains are desperately needed. The majority of the linkages in the cell wall peptidoglycan of M. abscessus are synthesized by non-classical transpeptidases, namely the L,D-transpeptidases. Emerging evidence suggests that these enzymes represent a new molecular vulnerability in this pathogen. Recent studies have demonstrated that inhibition of these enzymes by the carbapenem class of β-lactams determines their activity against M...
July 31, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28737463/prevalence-of-a-new-variant-oxa-204-and-oxa-48-carbapenemases-plasmids-encoded-in-klebsiella-pneumoniae-clinical-isolates-in-tunisia
#3
Rym Ouertani, Mariem Ben Jomàa-Jemili, Haythem Gharsa, Anne Limelette, Thomas Guillard, Lucien Brasme, Christophe de Champs, Chedly Chouchani
Carbapenemase-producing Klebsiella pneumoniae strains have emerged as a major problem for healthcare systems. The aim of this study was to determine the role and diversity of plasmids harboring carbapenemases encoding genes from a collection of K. pneumoniae isolates recovered between July 2011 and January 2012, with decreased susceptibility to carbapenems. Imipenem (IPM), ertapenem (ETP), meropenem (MEM), and doripenem (DOR) minimum inhibitory concentrations (MICs) were determined by E-test. Carbapenemase production was detected with the modified Hodge test...
July 24, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28725196/synergistic-effect-of-doripenem-and-cefotaxime-to-inhibit-ctx-m-15-type-%C3%AE-lactamases-biophysical-and-microbiological-views
#4
Lubna Maryam, Asad U Khan
CTX-M-15 type β-lactamase has the ability to hydrolyse cefotaxime, a third generation cephalosporin. The infections caused by multidrug resistant strains, especially CTX-M-15 producing strains are being treated with carbapenem group of β-lactam antibiotics. The objective of the study was to know if cefotaxime in combination with doripenem (carbapemen antibiotic) at very low concentration, inhibits the CTX-M-15 producing bacterial strains. blaCTX-M-15 gene was cloned to express CTX-M-15 enzyme and construct CTX-M-15 producing strain...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28705666/in-vitro-activity-of-ceftolozane-tazobactam-against-pseudomonas-aeruginosa-and-enterobacteriaceae-isolates-recovered-from-hospitalized-patients-in-germany
#5
Harald Seifert, Barbara Körber-Irrgang, Michael Kresken
To evaluate the activity of ceftolozane/tazobactam in comparison with other broad-spectrum antimicrobials against Pseudomonas aeruginosa and Enterobacteriaceae, 497 non-duplicate P. aeruginosa and 802 Enterobacteriaceae clinical isolates were consecutively collected during the period from September 2014 to April 2015 from patients in Germany with bloodstream, lower respiratory tract, intraabdominal or urinary tract infections. Antimicrobial susceptibility testing was performed by broth microdilution. Results were interpreted according to EUCAST criteria...
July 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28648181/a-highly-sensitive-carbapenemase-assay-using-laser-desorption-ionization-mass-spectrometry-based-on-a-parylene-matrix-chip
#6
Jong-Min Park, Jo-Il Kim, Joo-Yoon Noh, Mira Kim, Min-Jung Kang, Jae-Chul Pyun
A quantitative carbapenemase assay was developed using laser desorption/ionization mass spectrometry (LDI-MS) based on a parylene-matrix chip. As a first step, the reproducibility (spot-to-spot, shot-to-shot, and day-to-day) of LDI-MS based on a parylene-matrix chip and the quantification ranges for four carbapenem antibiotics (doripenem, ertapenem, imipenem, and meropenem) were determined. A carbapenem-susceptibility test was performed using the four carbapenems and 51 bacterial strains that displayed (1) carbapenem resistance with carbapenemase, (2) carbapenem resistance without carbapenemase, or (3) carbapenem susceptibility...
September 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28560041/severe-acute-asthma-caused-by-chlamydophila-pneumoniae-infection
#7
Yoshinari Endo, Toshihiro Shirai, Mika Saigusa, Eisuke Mochizuki
Asthma exacerbation is associated with respiratory infections, including those by viruses and atypical bacteria. We herein report a case of severe acute asthma in an adult caused by Chlamydophila pneumoniae (C. pneumoniae) infection. A 39-year-old woman without a history of asthma reported to the emergency department with progressive worsening of cough, shortness of breath, and wheezing with low oxygen saturation. A computed tomography (CT) scan revealed patchy ground-glass opacity and bronchial wall thickening...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28449875/development-and-validation-of-a-quantitative-confirmatory-method-for-30-%C3%AE-lactam-antibiotics-in-bovine-muscle-using-liquid-chromatography-coupled-to-tandem-mass-spectrometry
#8
M Di Rocco, M Moloney, T O'Beirne, S Earley, B Berendsen, A Furey, M Danaher
A method was developed for the confirmatory and quantitative analysis of 30 β-lactam antibiotic residues in bovine muscle. The method includes 12 penicillins (amoxicillin, ampicillin, cloxacillin, dicloxacillin, mecillinam, methicillin, nafcillin, oxacillin, penicillin G, penicillin V, piperacillin, ticarcillin), 12 cephalosporins (cefacetrile, cefadroxil, cephalexin, cefalonium, cefazolin, cefoperazone, cefotaxime, cefquinome, cefuroxime, desacetyl cephapirin, desfuroylceftiofur cysteine disulfide, desfuroylceftiofur dimer), five carbapenems (biapenem, doripenem, ertapenem, imipenem, meropenem) and faropenem...
April 12, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28369424/in-vitro-evaluation-of-different-antimicrobial-combinations-against-carbapenemase-producing-klebsiella-pneumoniae-the-activity-of-the-double-carbapenem-regimen-is-related-to-meropenem-mic-value
#9
A Oliva, L Scorzolini, A Cipolla, M T Mascellino, F Cancelli, D Castaldi, A D'Abramo, C D'Agostino, G Russo, M R Ciardi, C M Mastroianni, V Vullo
Objectives and methods: We evaluated the in vitro activity of different antimicrobial combinations with and without colistin against 39 carbapenem-resistant Klebsiella pneumoniae (CR-Kp) strains (colistin + meropenem/doripenem, colistin + tigecycline, colistin + rifampicin, gentamicin + meropenem, gentamicin + tigecycline and the double-carbapenem regimen meropenem + ertapenem) using the chequerboard method. The triple combination colistin + meropenem + tigecycline was also tested...
March 22, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28358014/untargeted-metabolomics-analysis-reveals-key-pathways-responsible-for-the-synergistic-killing-of-colistin-and-doripenem-combination-against-acinetobacter-baumannii
#10
Mohd Hafidz Mahamad Maifiah, Darren J Creek, Roger L Nation, Alan Forrest, Brian T Tsuji, Tony Velkov, Jian Li
Combination therapy is deployed for the treatment of multidrug-resistant Acinetobacter baumannii, as it can rapidly develop resistance to current antibiotics. This is the first study to investigate the synergistic effect of colistin/doripenem combination on the metabolome of A. baumannii. The metabolite levels were measured using LC-MS following treatment with colistin (2 mg/L) or doripenem (25 mg/L) alone, and their combination at 15 min, 1 hr and 4 hr (n = 4). Colistin caused early (15 min and 1 hr) disruption of the bacterial outer membrane and cell wall, as demonstrated by perturbation of glycerophospholipids and fatty acids...
March 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337084/therapeutic-drug-monitoring-of-continuous-infusion-doripenem-in-a-pediatric-patient-on-continuous-renal-replacement-therapy
#11
Jeffrey J Cies, Wayne S Moore, Susan B Conley, Paul Shea, Adela Enache, Arun Chopra
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...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28333677/y-site-physical-compatibility-of-beta-blocker-infusions-with-intensive-care-unit-admixtures
#12
COMPARATIVE STUDY
Jaime A Foushee, Pmichaele Meredith, Laura M Fox, EdwardE Grace
Parenteral beta-blocker therapy via continuous infusion has shown promising results for improved outcomes for patients with septic shock. As patients with septic shock may require multiple intravenous medications, compatibility is necessary to co-infuse these medications through a y-site connector. The purpose of this study was to examine the physical compatibility of select intravenous drugs used for patients with septic shock combined with various intravenous beta-blockers including esmolol, labetalol, and metoprolol through a simulated y-site infusion...
July 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28324783/recent-updates-of-carbapenem-antibiotics
#13
REVIEW
Mohammed I El-Gamal, Imen Brahim, Noorhan Hisham, Rand Aladdin, Haneen Mohammed, Amany Bahaaeldin
Carbapenems are among the most commonly used and the most efficient antibiotics since they are relatively resistant to hydrolysis by most β-lactamases, they target penicillin-binding proteins, and generally have broad-spectrum antibacterial effect. In this review, we described the initial discovery and development of carbapenems, chemical characteristics, in vitro/in vivo activities, resistance studies, and clinical investigations for traditional carbapenem antibiotics in the market; imipenem-cilastatin, meropenem, ertapenem, doripenem, biapenem, panipenem/betamipron in addition to newer carbapenems such as razupenem, tebipenem, tomopenem, and sanfetrinem...
May 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28314101/dielectrophoresis-system-for-testing-antimicrobial-susceptibility-of-gram-negative-bacteria-to-%C3%AE-lactam-antibiotics
#14
I-Hsiu Su, Wen-Chien Ko, Chung-Hsin Shih, Fang-Hao Yeh, Yung-Nien Sun, Jung-Chih Chen, Po-Lin Chen, Hsien-Chang Chang
Gram-negative bacteria (GNBs) are common pathogens causing severe sepsis. Rapid evaluation of drug susceptibility would guide effective antibiotic treatment and promote life-saving. A total of 78 clinical isolates of 13 Gram-negative species collected between April 2013 and November 2013 from two medical centers in Tainan were tested. Bacterial morphology changes in different concentrations of antibiotics were observed under the electric field of a quadruple electrode array using light microscopy. The minimal inhibitory concentrations (MICs) of four antimicrobial agents, namely, cefazolin, ceftazidime, cefepime, and doripenem, were determined by the dielectrophoretic antimicrobial susceptibility testing (dAST) and by the conventional broth dilution testing (BDT)...
March 31, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28223378/population-pharmacokinetic-analysis-of-doripenem-after-intravenous-infusion-in-korean-patients-with-acute-infections
#15
Dong-Hwan Lee, Yong Kyun Kim, Kyubok Jin, Myoung Joo Kang, Young-Don Joo, Yang Wook Kim, Young Soo Moon, Jae-Gook Shin, Sungmin Kiem
We investigated the population pharmacokinetics (PK) of doripenem in Korean patients with acute infections and determined an appropriate dosing regimen using a Monte Carlo simulation for predicting pharmacodynamics (PD). Patients (n = 37) with a creatinine clearance (CLCR) of 20 to 50 ml/min or >50 ml/min who received a 250-mg or 500-mg dose of doripenem over the course of 1 h every 8 h, respectively, were included in this study. Blood samples were taken predosing and 0 h, 0.5 h, and 4 to 6 h after the fourth infusion...
May 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28168884/population-pharmacokinetics-and-pharmacodynamics-of-doripenem-in-obese-hospitalized-patients
#16
Eun Kyoung Chung, Megan R Fleming, S Christian Cheatham, Michael B Kays
BACKGROUND: Doripenem population pharmacokinetics and dosing recommendations are limited in obesity. OBJECTIVE: To evaluate the population pharmacokinetics and pharmacodynamics of doripenem in obese patients. METHODS: Hospitalized adults with a body mass index (BMI) ≥ 40 kg/m(2) or total body weight (TBW) ≥45.5 kg over their ideal body weight received doripenem 500 mg every 8 hours, infused over 1 hour. Population pharmacokinetic analyses were performed using NONMEM, and Monte Carlo simulations were performed for 5 intermittent and prolonged infusion dosing regimens to calculate probability of target attainment (PTA) at 40% and 100% fT>MIC (free drug concentrations above the minimum inhibitory concentration)...
March 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28167543/carbapenem-mics-in-escherichia-coli-and-klebsiella-species-producing-extended-spectrum-%C3%AE-lactamases-in-critical-care-patients-from-2001-to-2009
#17
J Kristie Johnson, Gwen L Robinson, Lisa L Pineles, Adebola O Ajao, LiCheng Zhao, Jennifer S Albrecht, Anthony D Harris, Kerri A Thom, Jon P Furuno
Extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae strains are increasing in prevalence worldwide. Carbapenem antibiotics are used as a first line of therapy against ESBL-producing Enterobacteriaceae We examined a cohort of critical care patients for gastrointestinal colonization with carbapenem-resistant ESBL-producing strains (CR-ESBL strains). We cultured samples from this cohort of patients for ESBL-producing Klebsiella spp. and Escherichia coli and then tested the first isolate from each patient for susceptibility to imipenem, doripenem, meropenem, and ertapenem...
April 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28135762/stability-of-doripenem-in-reconstituted-solution-thermal-and-oxidative-decomposition-kinetics-and-degradation-products-by-lc-ms
#18
Fábio de Souza Barbosa, José Pedro Etchepare Cassol, Luiz Alcides das Chagas Batista, Everson Willian Fialho Cordeiro, Marí Castro Santos, Adriana Raffin Pohlmann, Elfrides E S Schapoval, Cássia Virginia Garcia, Andreas Sebastian Loureiro Mendez
A ultra-fast liquid chromatography method applied to quantitation of doripenem in powder for injection was validated. Validation parameters were assayed and a rapid analysis was established by a reversed-phase system comprising a C18 column endcapped (50 × 4.0 mm, 2.0 μm), mobile phase consisting of phosphoric acid 0.01% (pH 3.8) and acetonitrile (98:02, v/v) and a flow rate of 0.4 mL min(-1) . Drug stability was studied through submission to forced conditions, allowing the major degradation products to be detected and the kinetics parameters to be established...
August 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28079262/pediatric-obesity-pharmacokinetic-alterations-and-effects-on-antimicrobial-dosing
#19
REVIEW
Stephanie Natale, John Bradley, William Huy Nguyen, Tri Tran, Pamela Ny, Kirsten La, Eva Vivian, Jennifer Le
Limited data exist for appropriate drug dosing in obese children. This comprehensive review summarizes pharmacokinetic (PK) alterations that occur with age and obesity, and these effects on antimicrobial dosing. A thorough comparison of different measures of body weight and specific antimicrobial agents including cefazolin, cefepime, ceftazidime, daptomycin, doripenem, gentamicin, linezolid, meropenem, piperacillin-tazobactam, tobramycin, vancomycin, and voriconazole is presented. PubMed (1966-July 2015) and Cochrane Library searches were performed using these key terms: children, pharmacokinetic, obesity, overweight, body mass index, ideal body weight, lean body weight, body composition, and specific antimicrobial drugs...
March 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28057163/ceftazidime-avibactam-who-says-you-can-t-teach-an-old-drug-new-tricks
#20
Katie E Barber, Jessica K Ortwine, Ronda L Akins
PURPOSE: Gram-negative resistance continues to rise with treatment options becoming more limited. Ceftazidime/avibactam was recently approved in the United States and Europe, which combines an established third-generation cephalosporin with a new, unique, non-β-lactam β-lactamase inhibitor. This review conducts a thorough examination of structure, pharmacology, spectrum of activity, pharmacokinetics/pharmacodynamics, in vitro and clinical efficacy and safety/tolerability of ceftazidime/avibactam, as well as detailed future directions for the agent...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
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