ceftobiprole-medocaril and Gram-Negative-Bacterial-Infections

To summarize and evaluate the literature concerning ceftobiprole.. Literature identification was conducted through MEDLINE (1966-February 2008) and International Pharmaceutical Abstracts (1970-February 2008) using the terms ceftobiprole, medocaril, BAL 5788, RO-5788, BAL 9141, RO 63-9141, pyrrolidinone cephalosporin, MRSA, complicated skin and skin-structure infections (cSSSIs), community-acquired pneumonia, and nosocomial pneumonia. Additional publications were identified through a review of articles and abstracts from infectious disease meetings.. All articles in English were evaluated and all pertinent information was included.. Ceftobiprole medocaril is an extended-spectrum cephalosporin with activity against methicillin-resistant Staphylococcus spp., vancomycin-resistant Staphylococcus aureus, penicillin-resistant Streptococcus pneumoniae, vancomycin-resistant Enterococcus faecalis, Enterobacteriaceae, and Pseudomonas aeruginosa. Inactivity includes extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae and Enterococcus faecium. Preliminary data suggest that ceftobiprole may be effective with a 1-hour infusion of 500 mg every 12 hours for gram-positive infections and 500 mg every 8 hours with a 2-hour infusion for polymicrobial infections. Two clinical trials support these dosing regimens for cSSSIs. Ceftobiprole was noninferior to vancomycin in suspected gram-positive cSSSIs, with cure rates of 93.3% and 93.5%, respectively. Furthermore, ceftobiprole was noninferior to vancomycin and ceftazidime in polymicrobial cSSSIs (cure rates 90.5% vs 90.2%, respectively). Although the total number of adverse effects was similar to those of the comparator, more patients in the ceftobiprole group experienced nausea, vomiting, and dysgeusia.. The activity of ceftobiprole and limited clinical data suggest that it may be useful as empiric monotherapy for cSSSI and in combination with other antimicrobials in lower respiratory tract infections for which Phase 3 clinical trials are currently exploring. Although not shown in vitro, ceftobiprole may induce resistance due to its broad spectrum of activity. Approval is expected for the treatment of cSSSI.

Topics: Anti-Bacterial Agents; Cephalosporins; Clinical Trials as Topic; Drug Interactions; Gram-Negative Bacteria; Gram-Negative Bacterial Infections; Gram-Positive Bacteria; Gram-Positive Bacterial Infections; Humans; Microbial Sensitivity Tests

A randomized, double-blind, multicenter trial involving patients with a broad range of complicated skin and skin-structure infections due to either gram-positive or gram-negative bacteria was conducted to compare ceftobiprole monotherapy with treatment with vancomycin plus ceftazidime.. Patients were randomized 2:1 to receive ceftobiprole or to receive vancomycin plus ceftazidime. Outcomes were determined at a test-of-cure visit (7-14 days after completion of therapy) and were analyzed for all patients with complicated skin and skin-structure infections, as well as for subgroups, on the basis of major types of infections and severity of disease.. Among the clinically evaluable and the intent-to-treat populations, clinical cure rates at the test-of-cure visit were similar in the ceftobiprole and comparator treatment arms (clinical cure rate, 90.5% [439 of 485 patients] and 90.2% [220 of 244 patients] in the clinically evaluable population, respectively; 81.9% [448 of 547 patients] and 80.8% [227 of 281 patients] in the intent-to-treat population, respectively). Clinical cure rates in ceftobiprole-treated patients ranged from 86.2% (125 of 145 patients) among those with diabetes who had foot infections to 93.0% (80 of 86 patients) among those with cellulitis. Among patients treated with ceftobiprole, clinical cure rates were similar among patients from whom gram-negative bacteria were isolated (87.9% [109 of 124 patients]) and among patients from whom gram-positive bacteria were isolated (91.8% [292 of 318 patients]) and were not statistically different from the clinical cure rates among comparator-treated patients (89.7% [61 of 68 patients] and 90.3% [149 of 165 patients], respectively). Rates of adverse events and serious adverse events in the 2 treatment groups were similar.. Ceftobiprole monotherapy is as effective as vancomycin plus ceftazidime for treating patients with a broad range of complicated skin and skin-structure infections and infections due to gram-positive and gram-negative bacteria.

Topics: Aged; Ceftazidime; Cephalosporins; Double-Blind Method; Drug Therapy, Combination; Female; Gram-Negative Bacteria; Gram-Negative Bacterial Infections; Gram-Positive Bacteria; Gram-Positive Bacterial Infections; Humans; Male; Middle Aged; Skin Diseases, Bacterial; Treatment Outcome; Vancomycin

Ceftobiprole medocaril, a new cephalosporin, is highly active against a broad spectrum of Gram-positive and Gram-negative clinical pathogens, including methicillin-resistant Staphylococcus aureus (MRSA) and penicillin-resistant pneumococci. In this study, we tested ceftobiprole against various Gram-negative pathogens in a rabbit meningitis model and determined its penetration into the cerebrospinal fluid (CSF). In this animal model, ceftobiprole produced an antibacterial activity similar to that of cefepime against an Escherichia coli strain, a Klebsiella pneumoniae strain, and a β-lactamase-negative Haemophilus influenzae strain. Against a β-lactamase-positive H. influenzae strain, ceftobiprole was significantly superior. The penetration of ceftobiprole through inflamed meninges reached about 16% of serum levels compared to about 2% of serum levels through uninflamed meninges.

Topics: Animals; Anti-Bacterial Agents; beta-Lactamases; Cephalosporins; Disease Models, Animal; Escherichia coli; Gram-Negative Bacteria; Gram-Negative Bacterial Infections; Haemophilus influenzae; Klebsiella pneumoniae; Meningitis, Bacterial; Microbial Sensitivity Tests; Rabbits; Treatment Outcome