Bacterial infections are common in cancer patients. Ceftaroline (CFT) is a broad-spectrum cephalosporin with activity against most Gram-positive organisms (GPOs) and many Gram-negative organisms. In this study, the in vitro activity of CFT was compared with vancomycin (VAN), daptomycin (DAP), linezolid (LZD), trimethoprim/sulphamethoxazole (SXT) and tigecycline (TIG) against bacteria (predominantly blood culture isolates) isolated from cancer patients in 2014 and 2015. CFT was active against methicillin-susceptible Staphylococcus aureus (MSSA), methicillin-resistant S. aureus (MRSA), methicillin-susceptible coagulase-negative staphylococci (MS-CoNS) and methicillin-resistant coagulase-negative staphylococci (MR-CoNS) with MIC₉₀ values (minimum inhibitory concentration that inhibited 90% of the isolates) of 0.25, 2.0, 0.12 and 0.5 mg/L, respectively. MIC₉₀ values for other GPOs were: Bacillus spp., >8.0 mg/L; Corynebacterium spp., 2.0 mg/L; Micrococcus spp., <0.06 mg/L; viridans group streptococci, 0.5 mg/L; Streptococcus pneumoniae, 0.25 mg/L; and Streptococcus spp., <0.06 mg/L. Among the comparator agents, VAN, DAP, TIG and LZD were active against the majority of GPOs tested. CFT also had moderate activity against common extended-spectrum β-lactamase (ESBL)-negative Gram-negative bacilli such as Enterobacter cloacae, Escherichia coli, Klebsiella spp., Proteus mirabilis and Serratia spp.

01 Jun 2002·International Journal of Antimicrobial AgentsQ2 · MEDICINE

Outcomes associated with trimethoprim/sulphamethoxazole (TMP/SMX) therapy in TMP/SMX resistant community-acquired UTI

Q2 · MEDICINE

Review

Author: Kalpana Gupta ; Walter E Stamm

The increase in resistance rates to TMP/SMX among E. coli causing community-acquired UTI has resulted in consideration of alternative agents as first line therapy for these infections. However, there has been little study of the clinical significance of the in vitro trends in resistance which have been reported. We review studies that address the correlation between in vitro resistance to TMP/SMX and clinical outcome in uncomplicated UTI. From these data, it is clear that in vitro resistance does translate into therapeutic failure for 50-60% of patients with a TMP/SMX resistant uropathogen. Thus, it is reasonable to consider an agent other than TMP/SMX when the TMP/SMX resistance prevalence reaches 20%.

01 Mar 2002·International Journal of Antimicrobial AgentsQ2 · MEDICINE

Prevalence of antimicrobial resistance in Haemophilus influenzae, Streptococcus pneumoniae, Moraxella catarrhalis and Streptococcus pyogenes: results of a multicentre study in Turkey

Q2 · MEDICINE

Article

Author: Deniz Gür ; İftihar Köksal ; Meral Özalp ; Kurtuluş Töreci ; Arif Kaygusuz ; Bülent Sümerkan ; Ufuk Över ; Güner Söyletir

The in vitro activities of several antimicrobial agents against clinical isolates of Streptococcus pneumoniae (283), Haemophilus influenzae (272), Moraxella catarrhalis (179) and Streptococcus pyogenes (256) were determined in a multicentre study with the participation of five hospitals from four cities in Turkey. Penicillin resistance in S. pneumoniae was evaluated using the E-test and the remaining agents by disk diffusion. For S. pneumoniae overall 25.8% of the isolates were intermediately and 3.9% were highly resistant to penicillin and resistance to chloramphenicol, azithromycin and trimethoprim/sulphamethoxazole (TMP/SMX) was 3.8, 2.1 and 55.4%, respectively. Seven percent of H. influenzae produced beta-lactamase and all were susceptible to cefotaxime and azithromycin; the highest rate of resistance, 23.5%, was for TMP/SMX. Eighty-one percent of M. catarrhalis isolates produced beta-lactamase, 18.4% were resistant to TMP/SMX and all were susceptible to sulbactam/ampicillin combination. Resistance to chloramphenicol and azithromycin of S. pyogenes was 2.2 and 1.9%, respectively.

100 Deals associated with Sulfamethoxazole/Sulfadiazine/Trimethoprim

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Indication	Country/Location	Organization	Date
Bronchitis, Chronic	CN	Yichun Kangerxin Pharmaceutical Co., Ltd.	01 Jan 1994
Intestinal infections	CN	Yichun Kangerxin Pharmaceutical Co., Ltd.	01 Jan 1994
Urinary Tract Infections	CN	Yichun Kangerxin Pharmaceutical Co., Ltd.	01 Jan 1994

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