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Plazomicin

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https://www.readbyqxmd.com/read/29378708/efficacy-and-safety-of-plazomicin-compared-with-levofloxacin-in-the-treatment-of-complicated-urinary-tract-infection-and-acute-pyelonephritis-a-multicenter-randomized-double-blind-phase-2-study
#1
Lynn E Connolly, Valerie Riddle, Deborah Cebrik, Eliana S Armstrong, Loren G Miller
Increasing antimicrobial resistance among uropathogens limits treatment options for patients with complicated urinary tract infection (cUTI). Plazomicin, a next-generation aminoglycoside, has in vitro activity against multidrug-resistant Enterobacteriaceae, including isolates resistant to currently available aminoglycosides as well as extended-spectrum β-lactamase-producing and carbapenem-resistant Enterobacteriaceae. We evaluated the efficacy and safety of plazomicin in a double-blind, comparator-controlled, phase 2 study in adults with cUTI or acute pyelonephritis...
January 29, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29337703/new-antibiotics-for-ventilator-associated-pneumonia
#2
Matteo Bassetti, Antionio Vena, Nadia Castaldo, Elda Righi, Maddalena Peghin
PURPOSE OF REVIEW: Ventilator-associated pneumonia (VAP) caused by multidrug-resistant (MDR) bacteria represents a global emerging problem. Delayed prescription of an adequate treatment for VAP has been associated with higher morbidity and mortality. New molecules have been developed to face the need of compounds that are active against resistant Gram-positive and Gram-negative pathogens. The aim of this review is to summarize the current scenario of new therapeutic options for the treatment of VAP...
January 13, 2018: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/29223516/antimicrobial-activity-of-plazomicin-against-enterobacteriaceae-producing-carbapenemases-from-50-brazilian-medical-centers
#3
Andreza Francisco Martins, Larissa Bail, Carmen Antonia Sanches Ito, Keite da Silva Nogueira, Tanise Vendruscolo Dalmolin, Amanda Silva Martins, Jaime Luis Lopes Rocha, Alisa W Serio, Felipe Francisco Tuon
Plazomicin is a next-generation aminoglycoside with activity against Enterobacteriaceae, including carbapenemase-producing Enterobacteriaceae (CPE). The aim of this study was to evaluate the activity of plazomicin against CPE (Klebsiella spp., Escherichia coli, Serratia spp., Enterobacter spp., Citrobacter spp., Morganella spp., Proteus spp., Providencia spp.) from different Brazilian hospitals. A total of 4000 carbapenem-resistant Enterobacteriaceae isolates were collected from clinical samples in 50 Brazilian hospitals during 2013-2015...
November 10, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29091226/plazomicin-activity-against-polymyxin-resistant-enterobacteriaceae-including-mcr-1-producing-isolates
#4
Valérie Denervaud-Tendon, Laurent Poirel, Lynn E Connolly, Kevin M Krause, Patrice Nordmann
Objectives: Plazomicin, a novel aminoglycoside with in vitro activity against MDR Gram-negative organisms, is under development to treat patients with serious enterobacterial infections. We evaluated the activity of plazomicin and comparators against colistin-resistant enterobacterial isolates. Methods: Susceptibility to plazomicin and comparators was tested by broth microdilution for a collection of 95 colistin-resistant enterobacterial isolates collected from 29 hospitals in eight countries...
October 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29091224/in-vitro-activity-of-plazomicin-against-%C3%AE-lactamase-producing-carbapenem-resistant-enterobacteriaceae-cre
#5
Yunliang Zhang, Ankita Kashikar, Karen Bush
Background: Carbapenem-resistant Enterobacteriaceae (CRE) represent an urgent threat because few drugs are available to treat infections caused by these pathogens. Plazomicin is a novel aminoglycoside that recently completed a Phase 3 clinical trial for treatment of infections caused by CRE. Methods: A set of 110 characterized unique CRE patient isolates from central Indiana healthcare centres was tested by microbroth dilution for susceptibility to plazomicin, and to reference aminoglycosides and carbapenems...
October 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28893690/new-agents-for-the-treatment-of-infections-with-gram-negative-bacteria-restoring-the-miracle-or-false-dawn
#6
REVIEW
H Wright, R A Bonomo, D L Paterson
BACKGROUND: Antibiotic resistance in Gram-negative resistance has developed without a commensurate response in the successful development of antibiotic agents, though recent progress has been made. AIMS: This review aims to provide a summary of the existing evidence on efficacy, spectrum of activity and the development of resistance of new agents that have been licensed or have completed advanced clinical trials and that possess activity against resistant Gram-negative organisms...
October 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28577932/in-vitro-activity-of-several-antimicrobial-agents-against-methicillin-resistant-staphylococcus-aureus-mrsa-isolates-expressing-aminoglycoside-modifying-enzymes-potency-of-plazomicin-alone-and-in-combination-with-other-agents
#7
María Carmen López Díaz, Esther Ríos, Iciar Rodríguez-Avial, Rosa Janneth Simaluiza, Juan José Picazo, Esther Culebras
This study investigated the in-vitro activity of clinically relevant aminoglycosides and new antimicrobial agents-plazomicin, ceftobiprole and dalbavancin-against 55 methicillin-resistant Staphylococcus aureus (MRSA) isolates producing aminoglycoside-modifying enzymes (AMEs). The checkerboard method was used to assess synergism between plazomicin and four antibiotics (fosfomycin, ceftobiprole, cefoxitin and meropenem), and time-kill assays were performed for the most active combinations. Among the aminoglycosides tested, plazomicin was the most active agent against MRSA, with >90% of isolates being inhibited at a minimum inhibitory concentration (MIC) of ≤1 mg/L...
August 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/27919895/plazomicin-activity-against-346-extended-spectrum-%C3%AE-lactamase-ampc-producing-escherichia-coli-urinary-isolates-in-relation-to-aminoglycoside-modifying-enzymes
#8
Maria Del Carmen López-Diaz, Esther Culebras, Iciar Rodríguez-Avial, Esther Rios, José Manuel Viñuela-Prieto, Juan J Picazo, Carmen Rodríguez-Avial
The activity of plazomicin and clinically relevant aminoglycosides was tested against 346 extended-spectrum-β-lactamase/AmpC-producing Escherichia coli urinary isolates, and the results were correlated with the presence of aminoglycoside-modifying enzymes (AMEs). Data showed that plazomicin was very active against all ESBL/AmpC-producing E. coli urinary isolates. Its activity was not related to the AME genes studied.
February 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27614915/plazomicin-is-effective-in-a-non-human-primate-pneumonic-plague-model
#9
William M Mega, Melanie Doyle-Eisele, Robert T Cass, Corwin F Kostrub, Robert L Sherwood, Matthew A Metz, Ryan T Cirz
The efficacy of plazomicin for pneumonic plague was evaluated in a non-human primate model. African Green monkeys challenged with a lethal aerosol of Yersinia pestis [median (range) of 98 (15-331) LD50s] received placebo (n=12) or 'humanized' dose regimens (6.25, 12.5 or 25mg/kg every 24h) of plazomicin (n=52) after the onset of fever for a duration of 5 or 10days. All animals treated with placebo died, while 36 plazomicin-treated animals survived through study end. The majority (33/36) were either in the 10-day (high-/mid-/low-dose) or 5-day high-dose groups...
December 15, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27400643/the-antibiotic-pipeline-for-multi-drug-resistant-gram-negative-bacteria-what-can-we-expect
#10
REVIEW
Matthew E Falagas, Andreas D Mavroudis, Konstantinos Z Vardakas
INTRODUCTION: A real concern in the medical community is the increasing resistance of bacteria, especially that of Gram-negative types. New antibiotics are currently under clinical development, promising to tackle severe infections caused, especially, by multi-drug resistant (MDR) bacteria and broaden the armamentarium of clinicians. AREAS COVERED: We searched PUBMED and GOOGLE databases. Combinations of already approved β-lactams or monobactams with new β-lactamase inhibitors [imipenem-cilastatin/MK-7655 (relebactam), meropenem/RPX7009 (vaborbactam), ceftaroline/avibactam, aztreonam/avibactam], new β-lactams (S-649266, BAL30072), aminoglycosides (plazomicin), quinolones (finafloxacin) and tetracyclines (eravacycline) were included in the review...
August 2016: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/27384881/role-of-newer-and-re-emerging-older-agents-in-the-treatment-of-infections-caused-by-carbapenem-resistant-enterobacteriaceae
#11
Joshua T Thaden, Jason M Pogue, Keith S Kaye
Antimicrobial resistance has been identified by the World Health Organization as "one of the three greatest threats to human health." Gram negative bacteria in particular drive this alarming trend. Carbapenem-resistant Enterobacteriaceae (CRE) such as Escherichia coli, Klebsiella pneumoniae, and Enterobacter species are of particular importance as they are associated with poor clinical outcomes and are common causes for a variety of infections including bacteremia, urinary tract infection, intra-abdominal infections and pneumonia...
May 19, 2017: Virulence
https://www.readbyqxmd.com/read/27347712/emerging-drugs-for-nosocomial-pneumonia
#12
REVIEW
Adamantia Liapikou, Antoni Torres
INTRODUCTION: Hospital-acquired pneumonia (HAP) is one of the leading nosocomial infections worldwide and is associated with an elevated morbidity and mortality and increased hospital costs. Nevertheless, prompt and adequate antimicrobial treatment is mandatory following VAP development, especially in the face of multidrug resistant pathogens. AREAS COVERED: We searched Pubmed and ClinicalTrials.gov site reports in English language of phase III clinical trials, between 2000-2016 referring to the antibiotic treatment of nosocomial pneumonia...
September 2016: Expert Opinion on Emerging Drugs
https://www.readbyqxmd.com/read/27297487/association-between-the-presence-of-aminoglycoside-modifying-enzymes-and-in-vitro-activity-of-gentamicin-tobramycin-amikacin-and-plazomicin-against-klebsiella-pneumoniae-carbapenemase-and-extended-spectrum-%C3%AE-lactamase-producing-enterobacter-species
#13
Ghady Haidar, Ammar Alkroud, Shaoji Cheng, Travis M Churilla, Bryce M Churilla, Ryan K Shields, Yohei Doi, Cornelius J Clancy, M Hong Nguyen
We compared the in vitro activities of gentamicin (GEN), tobramycin (TOB), amikacin (AMK), and plazomicin (PLZ) against 13 Enterobacter isolates possessing both Klebsiella pneumoniae carbapenemase and extended-spectrum β-lactamase (KPC+/ESBL+) with activity against 8 KPC+/ESBL-, 6 KPC-/ESBL+, and 38 KPC-/ESBL- isolates. The rates of resistance to GEN and TOB were higher for KPC+/ESBL+ (100% for both) than for KPC+/ESBL- (25% and 38%, respectively), KPC-/ESBL+ (50% and 17%, respectively), and KPC-/ESBL- (0% and 3%, respectively) isolates...
September 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27208771/aminoglycoside-resistance-the-emergence-of-acquired-16s-ribosomal-rna-methyltransferases
#14
REVIEW
Yohei Doi, Jun-Ichi Wachino, Yoshichika Arakawa
Aminoglycoside-producing Actinobacteria are known to protect themselves from their own aminoglycoside metabolites by producing 16S ribosomal RNA methyltransferase (16S-RMTase), which prevents them from binding to the 16S rRNA targets. Ten acquired 16S-RMTases have been reported from gram-negative pathogens. Most of them posttranscriptionally methylate residue G1405 of 16S rRNA resulting in high-level resistance to gentamicin, tobramycin, amikacin, and plazomicin. Strains that produce 16S-RMTase are frequently multidrug-resistant or even extensively drug-resistant...
June 2016: Infectious Disease Clinics of North America
https://www.readbyqxmd.com/read/27139351/looking-for-new-preparations-for-antibacterial-therapy-iv-new-antimicrobial-agents-from-the-aminoglycoside-macrolide-and-tetracycline-groups-in-clinical-trials
#15
Izabela Karpiuk, Stefan Tyski
This paper is the fourth in a series on the search for new antibacterial therapies, and covers new compounds belonging to the aminoglycoside, macrolide and tetracycline groups of antibiotics. The article describes eight new substances at the clinical trial stage of development. One of them is an aminoglycoside (plazomicin), four are macrolides, collectively known as ketolides (cethromycin, solithromycin, EDP-420 and EDP-788), and the remaining three are members of the tetracycline group (omadacycline, eravacycline, sarecycline)...
2015: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27005457/new-drugs-for-the-treatment-of-complicated-intra-abdominal-infections-in-the-era-of-increasing-antimicrobial-resistance
#16
REVIEW
Ling-Shan Syue, Yen-Hsu Chen, Wen-Chien Ko, Po-Ren Hsueh
The continuing increase in multidrug-resistant organisms (MDROs) worldwide has created new challenges in treating complicated intra-abdominal infections (cIAIs). A number of novel antimicrobial agents have been developed against resistant pathogens. To target extended-spectrum β-lactamase (ESBL)-producing pathogens, novel β-lactam antibiotics, such as ceftolozane/tazobactam, ceftazidime/avibactam, aztreonam/avibactam, imipenem/relebactam and S-649266, are antimicrobial alternatives for cIAIs. Two new drugs, eravacycline and plazomicin, have activity against Klebsiella pneumoniae carbapenemase (KPC)-producing K...
April 2016: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/26610040/recent-developments-in-antibiotic-agents-for-the-treatment-of-complicated-intra-abdominal-infections
#17
REVIEW
Shang-Yi Lin, Chung-Hao Huang, Wen-Chien Ko, Yen-Hsu Chen, Po-Ren Hsueh
INTRODUCTION: Treatment of complicated intra-abdominal infections (cIAIs) is becoming increasingly difficult because of the widespread emergence of multidrug-resistant organisms. AREAS COVERED: In this review, we discuss the effectiveness of several new antibiotics for the treatment of cIAIs, including new β-lactamase inhibitor combinations (BLICs) and tetracycline-class drugs, recently developed aminoglycosides and quinolones, and novel lipoglycopeptides and oxazolidinones...
2016: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/26475603/-new-antibacterial-agents-on-the-market-and-in-the-pipeline
#18
REVIEW
W V Kern
After some years of stagnation there have been several new successful developments in the field of antibacterial agents. Most of these new developments have been in conventional antibacterial classes. New drugs among the beta-lactam agents are methicillin-resistant Staphylococcus aureus (MRSA) active cephalosporins (ceftaroline and ceftobiprole) and new combinations of beta-lactam with beta-lactamase inhibitors (ceftolozane/tazobactam, ceftazidime/avibactam, imipenem/relebactam and meropenem/RPX7009). New developments can also be observed among oxazolidinones (tedizolid, radezolid, cadazolid and MRX-I), macrolides/ketolides (modithromycin and solithromycin), aminoglycosides (plazomicin), quinolones (nemonoxacin, delafloxacin and avarofloxacin), tetracyclines (omadacycline and eravacycline) as well as among glycopeptides and lipopeptides (oritavancin, telavancin, dalbavancin and surotomycin)...
November 2015: Der Internist
https://www.readbyqxmd.com/read/26419762/plazomicin-an-investigational-therapy-for-the-treatment-of-urinary-tract-infections
#19
REVIEW
Ilias Karaiskos, Maria Souli, Helen Giamarellou
INTRODUCTION: Living in the ever-expanding era of multidrug-resistant (MDR), extensively drug-resistant (XDR), and even pandrug-resistant Gram-negative microorganisms, the medical community is facing the approaching fear of the "End of Antibiotics." Plazomicin is a next-generation aminoglycoside designed to evade all clinically relevant aminoglycoside-modifying enzymes, the main mechanism of aminoglycoside resistance. A newer aminoglycoside active against several MDR-XDR microorganisms is herein presented and discussed...
2015: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/26391381/in-vitro-activity-of-the-next-generation-aminoglycoside-plazomicin-alone-and-in-combination-with-colistin-meropenem-fosfomycin-or-tigecycline-against-carbapenemase-producing-enterobacteriaceae-strains
#20
Iciar Rodríguez-Avial, Irene Pena, Juan J Picazo, Carmen Rodríguez-Avial, Esther Culebras
Carbapenemase-producing Enterobacteriaceae (CPE) cause serious infections and are associated with high mortality in part due to limited treatment options. The in vitro activities of the new aminoglycoside plazomicin and comparators were evaluated against a collection of 164 CPE (VIM-1, n=125; KPC-2, n=34; OXA-48, n=4; and IMP-22, n=1). MIC90 values of gentamicin, tobramycin and amikacin were 256, 64 and 16 mg/L, respectively. Plazomicin exhibited an MIC range of 0.12-4 mg/L with MIC50 and MIC90 values of 0...
December 2015: International Journal of Antimicrobial Agents
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