In vitro activity of ceftaroline and comparators against bacterial isolates collected globally from patients with skin infections. (September 2021)

• Record Type: Journal Article
• Authors: Piérard, Denis; Stone, Gregory G.
• Is Part Of: Journal of global antimicrobial resistance. Volume 26(2021)
• Page Start: 4
• Page End: 10
• Publication Date: 2021-09
• Subjects: ATLAS -- β-Haemolytic streptococci -- Ceftaroline -- Skin infection -- Staphylococcus aureus -- Surveillance; Drug resistance -- Periodicals; Drug resistance -- Periodicals; Drug resistance; Periodicals; 616.9041
• DOI: 10.1016/j.jgar.2021.04.020
• Languages: English
• ISSNs: 2213-7165

Abstract

Highlights: Isolates collected from patients with skin and skin-structure infections, 2015–2018. Regions included Africa/Middle East, Asia/South Pacific, Europe and Latin America. All MSSA and 90.8–96.5% of MRSA isolates were susceptible to ceftaroline. MIC90 to ceftaroline: S. pyogenes, 0.008 mg/L; S. agalactiae, 0.015–0.03 mg/L. Gram-negatives: regional susceptibility pattern to ceftaroline among ESBL-negative isolates. ABSTRACT: Objectives: This study reports the antimicrobial activities of ceftaroline and comparators against bacterial isolates from patients with skin and skin-structure infections (2015–2018). Methods: A central laboratory performed antimicrobial susceptibility testing according to CLSI broth microdilution methodology. EUCAST breakpoints were used. Results: Isolates were collected in Europe (14 408 isolates; 53.9%), Asia/South Pacific (SP) (5317; 19.9%), Latin America (4268; 16.0%) and Africa/Middle East (ME) (2753; 10.3%). In all regions, all 7950 methicillin-susceptible Staphylococcus aureus (MSSA) isolates were susceptible to ceftaroline and vancomycin; susceptibility to daptomycin, linezolid, teicoplanin and tigecycline was ≥99.6%. Susceptibility of all 9174 methicillin-resistant S. aureus (MRSA) isolates to daptomycin, linezolid, teicoplanin, tigecycline and vancomycin was ≥97.7%, with 90.8–96.5% susceptible to ceftaroline. The ceftaroline MIC90 was 0.008 mg/L against Streptococcus pyogenes, 0.015–0.03 mg/L against Streptococcus agalactiae and 0.008–0.015 mg/L against Streptococcus dysgalactiae . All β-haemolytic streptococci were susceptible to vancomycin. Susceptibility of extended-spectrum β-lactamase (ESBL)-negative Escherichia coli to ceftaroline ranged from 67.0% in Asia/SP to 91.0% in Africa/ME; susceptibility to amikacin, meropenem and tigecycline was ≥96.7% in all regions. Susceptibility of ESBL-negative Klebsiella pneumoniae to ceftaroline ranged from 78.4% in Europe to 83.2% in Africa/ME, and among ESBL-negative Klebsiella oxytoca was 76.3% in Asia/SP and 89.0–93.5% in other regions. Among ESBL-negative K. pneumoniae and ESBL-negative K. oxytoca, susceptibility was highest to amikacin (93.7–96.4% and 95.7–100%, respectively) and meropenem (89.7–97.4% and 98.3–100%, respectively). Conclusion: Ceftaroline was active against the Gram-positive isolates collected. Susceptibility of ESBL-negative Gram-negative isolates showed regional variations.