Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018)

Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Pfaller M [verfasserIn] Shortridge D [verfasserIn] Chen WT [verfasserIn] Sader H [verfasserIn] Castanheira M [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance

Übergeordnetes Werk:	In: Infection and Drug Resistance - Dove Medical Press, 2009, (2022), Seite 6739-6753
Übergeordnetes Werk:	year:2022 ; pages:6739-6753

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Katalog-ID:	DOAJ025633449

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allfields	(DE-627)DOAJ025633449 (DE-599)DOAJ38bad8cec8de473c9e35cb0324448dfb DE-627 ger DE-627 rakwb eng RC109-216 Pfaller M verfasserin aut Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance Infectious and parasitic diseases Shortridge D verfasserin aut Chen WT verfasserin aut Sader H verfasserin aut Castanheira M verfasserin aut In Infection and Drug Resistance Dove Medical Press, 2009 (2022), Seite 6739-6753 (DE-627)600305996 (DE-600)2494856-1 11786973 nnns year:2022 pages:6739-6753 https://doaj.org/article/38bad8cec8de473c9e35cb0324448dfb kostenfrei https://www.dovepress.com/ceftolozanetazobactam-activity-against-drug-resistant-pseudomonas-aeru-peer-reviewed-fulltext-article-IDR kostenfrei https://doaj.org/toc/1178-6973 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2022 6739-6753
spelling	(DE-627)DOAJ025633449 (DE-599)DOAJ38bad8cec8de473c9e35cb0324448dfb DE-627 ger DE-627 rakwb eng RC109-216 Pfaller M verfasserin aut Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance Infectious and parasitic diseases Shortridge D verfasserin aut Chen WT verfasserin aut Sader H verfasserin aut Castanheira M verfasserin aut In Infection and Drug Resistance Dove Medical Press, 2009 (2022), Seite 6739-6753 (DE-627)600305996 (DE-600)2494856-1 11786973 nnns year:2022 pages:6739-6753 https://doaj.org/article/38bad8cec8de473c9e35cb0324448dfb kostenfrei https://www.dovepress.com/ceftolozanetazobactam-activity-against-drug-resistant-pseudomonas-aeru-peer-reviewed-fulltext-article-IDR kostenfrei https://doaj.org/toc/1178-6973 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2022 6739-6753
allfields_unstemmed	(DE-627)DOAJ025633449 (DE-599)DOAJ38bad8cec8de473c9e35cb0324448dfb DE-627 ger DE-627 rakwb eng RC109-216 Pfaller M verfasserin aut Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance Infectious and parasitic diseases Shortridge D verfasserin aut Chen WT verfasserin aut Sader H verfasserin aut Castanheira M verfasserin aut In Infection and Drug Resistance Dove Medical Press, 2009 (2022), Seite 6739-6753 (DE-627)600305996 (DE-600)2494856-1 11786973 nnns year:2022 pages:6739-6753 https://doaj.org/article/38bad8cec8de473c9e35cb0324448dfb kostenfrei https://www.dovepress.com/ceftolozanetazobactam-activity-against-drug-resistant-pseudomonas-aeru-peer-reviewed-fulltext-article-IDR kostenfrei https://doaj.org/toc/1178-6973 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2022 6739-6753
allfieldsGer	(DE-627)DOAJ025633449 (DE-599)DOAJ38bad8cec8de473c9e35cb0324448dfb DE-627 ger DE-627 rakwb eng RC109-216 Pfaller M verfasserin aut Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance Infectious and parasitic diseases Shortridge D verfasserin aut Chen WT verfasserin aut Sader H verfasserin aut Castanheira M verfasserin aut In Infection and Drug Resistance Dove Medical Press, 2009 (2022), Seite 6739-6753 (DE-627)600305996 (DE-600)2494856-1 11786973 nnns year:2022 pages:6739-6753 https://doaj.org/article/38bad8cec8de473c9e35cb0324448dfb kostenfrei https://www.dovepress.com/ceftolozanetazobactam-activity-against-drug-resistant-pseudomonas-aeru-peer-reviewed-fulltext-article-IDR kostenfrei https://doaj.org/toc/1178-6973 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2022 6739-6753
allfieldsSound	(DE-627)DOAJ025633449 (DE-599)DOAJ38bad8cec8de473c9e35cb0324448dfb DE-627 ger DE-627 rakwb eng RC109-216 Pfaller M verfasserin aut Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018) 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance Infectious and parasitic diseases Shortridge D verfasserin aut Chen WT verfasserin aut Sader H verfasserin aut Castanheira M verfasserin aut In Infection and Drug Resistance Dove Medical Press, 2009 (2022), Seite 6739-6753 (DE-627)600305996 (DE-600)2494856-1 11786973 nnns year:2022 pages:6739-6753 https://doaj.org/article/38bad8cec8de473c9e35cb0324448dfb kostenfrei https://www.dovepress.com/ceftolozanetazobactam-activity-against-drug-resistant-pseudomonas-aeru-peer-reviewed-fulltext-article-IDR kostenfrei https://doaj.org/toc/1178-6973 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2022 6739-6753
language	English
source	In Infection and Drug Resistance (2022), Seite 6739-6753 year:2022 pages:6739-6753
sourceStr	In Infection and Drug Resistance (2022), Seite 6739-6753 year:2022 pages:6739-6753
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance Infectious and parasitic diseases
isfreeaccess_bool	true
container_title	Infection and Drug Resistance
authorswithroles_txt_mv	Pfaller M @@aut@@ Shortridge D @@aut@@ Chen WT @@aut@@ Sader H @@aut@@ Castanheira M @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	600305996
id	DOAJ025633449
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ025633449</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230307090801.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230226s2022 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ025633449</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ38bad8cec8de473c9e35cb0324448dfb</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">RC109-216</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Pfaller M</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016&ndash;2018)</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2022</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. 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callnumber-first	R - Medicine
author	Pfaller M
spellingShingle	Pfaller M misc RC109-216 misc asia misc ceftolozane/tazobactam misc drug resistance misc enterobacterales misc p. aeruginosa misc surveillance misc Infectious and parasitic diseases Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018)
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topic_title	RC109-216 Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018) asia ceftolozane/tazobactam drug resistance enterobacterales p. aeruginosa surveillance
topic	misc RC109-216 misc asia misc ceftolozane/tazobactam misc drug resistance misc enterobacterales misc p. aeruginosa misc surveillance misc Infectious and parasitic diseases
topic_unstemmed	misc RC109-216 misc asia misc ceftolozane/tazobactam misc drug resistance misc enterobacterales misc p. aeruginosa misc surveillance misc Infectious and parasitic diseases
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title	Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018)
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title_full	Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018)
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author_browse	Pfaller M Shortridge D Chen WT Sader H Castanheira M
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title_sort	ceftolozane/tazobactam activity against drug-resistant pseudomonas aeruginosa and enterobacterales causing healthcare-associated infections in eight asian countries: report from an antimicrobial surveillance program (2016–2018)
callnumber	RC109-216
title_auth	Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018)
abstract	Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance
abstractGer	Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance
abstract_unstemmed	Michael Pfaller,1,2 Dee Shortridge,1 Wei-Ting Chen,3 Helio Sader,1 Mariana Castanheira1 1JMI Laboratories, North Liberty, IA, USA; 2University of Iowa College of Medicine, Iowa City, IA, USA; 3Merck & Co., Inc, Kenilworth, NJ, USACorrespondence: Dee Shortridge, JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA, 52317, USA, Tel +1 319-665-3370, Fax +1319-665-3371, Email dee-shortridgejmilabs.comPurpose: To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance
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title_short	Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018)
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Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor.Methods: A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used.Results: Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤ 4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, < 32/< 32 mg/L).Conclusion: Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.Keywords: Asia, ceftolozane/tazobactam, drug resistance, Enterobacterales, P. aeruginosa, surveillance</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">asia</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">ceftolozane/tazobactam</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">drug resistance</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">enterobacterales</subfield></datafield><datafield tag="650" ind1=" " 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Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016&ndash;2018)

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Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016–2018)