Journal of global antimicrobial resistance · 2022
Susceptibility of ceftobiprole against Gram-positive and Gram-negative clinical isolates from 2019 from different European territories.
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Hawser Stephen, Kothari Nimmi, Jemmely Noëlle, Redder Nowel
Аннотация
OBJECTIVES: Ceftobiprole is approved for use in treatment of hospital-associated and community-acquired pneumonia in 16 different European countries and is currently undergoing clinical trials in the United States.
METHODS: Isolates were collected from hospital laboratories from 16 European countries during 2019 as part of an ongoing post-marketing surveillance study. MICs were determined using EUCAST broth microdilution methodology and interpreted using 2020 EUCAST breakpoints.
RESULTS: Ceftobiprole was active (MIC, ≤2 mg/L) against 100% and 99.3% of methicillin-susceptible Staphylococcus aureus and MRSA isolates collected in 2019. Against Streptococcus pneumoniae, ceftobiprole was active (MIC, ≤0.5 mg/L) against 98.4% of isolates. Overall, 77.4% of Enterobacterales were susceptible though isolate numbers in certain countries were notably low. In addition, based on non-species-related PK/PD breakpoints, 69.7% of Pseudomonas aeruginosa isolates were susceptible to ceftobiprole. Analysis of data by geographical regions showed that susceptibility to ceftobiprole by region or country was not significantly varied though MRSA, S. pneumoniae, Enterobacterales and P. aeruginosa. Isolates from Italy had lower susceptibilities to ceftobiprole: 98% of MRSA, 94% of S. pneumoniae and 61% of Enterobacterales isolates were susceptible to ceftobiprole.
CONCLUSION: The data for ceftobiprole for isolates from 2019 are encouragingly very similar to studies performed on isolates from earlier years showing that susceptibility to ceftobiprole has not changed and, importantly, that resistance emergence remains low throughout Europe.
METHODS: Isolates were collected from hospital laboratories from 16 European countries during 2019 as part of an ongoing post-marketing surveillance study. MICs were determined using EUCAST broth microdilution methodology and interpreted using 2020 EUCAST breakpoints.
RESULTS: Ceftobiprole was active (MIC, ≤2 mg/L) against 100% and 99.3% of methicillin-susceptible Staphylococcus aureus and MRSA isolates collected in 2019. Against Streptococcus pneumoniae, ceftobiprole was active (MIC, ≤0.5 mg/L) against 98.4% of isolates. Overall, 77.4% of Enterobacterales were susceptible though isolate numbers in certain countries were notably low. In addition, based on non-species-related PK/PD breakpoints, 69.7% of Pseudomonas aeruginosa isolates were susceptible to ceftobiprole. Analysis of data by geographical regions showed that susceptibility to ceftobiprole by region or country was not significantly varied though MRSA, S. pneumoniae, Enterobacterales and P. aeruginosa. Isolates from Italy had lower susceptibilities to ceftobiprole: 98% of MRSA, 94% of S. pneumoniae and 61% of Enterobacterales isolates were susceptible to ceftobiprole.
CONCLUSION: The data for ceftobiprole for isolates from 2019 are encouragingly very similar to studies performed on isolates from earlier years showing that susceptibility to ceftobiprole has not changed and, importantly, that resistance emergence remains low throughout Europe.