Ceftobiprole: first cephalosporin with activity against methicillin-resistant Staphylococcus aureus. 2009

Céline Vidaillac, and Michael J Rybak
Anti-Infective Research Laboratory, Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Avenue, Detroit, MI 48201, USA. m.rybak@wayne.edu

Ceftobiprole medocaril is the first member of a new series of advanced cephalosporins with activity against methicillin-resistant Staphylococcus aureus (MRSA). The drug received an approvable letter from the United States Food and Drug Administration (FDA) in March 2008 and from Health Canada in June 2008 for the treatment of complicated skin and skin structure infections including diabetic foot infections. Ceftobiprole exerts its antibacterial activity by inhibiting the penicillin-binding proteins (PBPs) involved in cell wall synthesis. It has an established stability against hydrolysis by many gram-positive beta-lactamases and a higher affinity for various PBPs (such as PBP2a of MRSA or PBP2x of Streptococcus pneumoniae), which leads to a wider spectrum of activity compared with older beta-lactams. Ceftobiprole activity does not cover extended-spectrum beta-lactamase-producing Enterobacteriaceae and some other pathogens, including Enterococcus faecium or Acinetobacter baumanii. Generally well tolerated, with nausea and taste disturbance being the most common adverse events, ceftobiprole appeared noninferior to empiric therapy in several clinical trials. Ceftobiprole is available only for intravenous administration; recommended dosage regimens have not been approved by the FDA as of this writing. However, based on the Canadian package insert, expected dosage recommendations are 500 mg as a 1-hour intravenous infusion every 12 hours for the treatment of complicated skin and skin structure infections caused by certain gram-positive pathogens, and 500 mg as a 2-hour infusion every 8 hours when susceptible gram-negative or both gram-positive and susceptible gram-negative pathogens are involved. Dosage adjustments are indicated for patients with moderate or severe renal impairment, and dosage recommendations are expected to be 500 or 250 mg, respectively, as a 2-hour infusion every 12 hours. Several precautions regarding hypersensitivity and drug incompatibility are reported. Ceftobiprole represents a promising option for the treatment of mono- and polymicrobial infections caused by multidrug-resistant gram-positive and susceptible gram-negative pathogens, but further toxicity and safety studies are warranted.

UI MeSH Term Description Entries
D002511 Cephalosporins A group of broad-spectrum antibiotics first isolated from the Mediterranean fungus ACREMONIUM. They contain the beta-lactam moiety thia-azabicyclo-octenecarboxylic acid also called 7-aminocephalosporanic acid. Antibiotics, Cephalosporin,Cephalosporanic Acid,Cephalosporin,Cephalosporin Antibiotic,Cephalosporanic Acids,Acid, Cephalosporanic,Acids, Cephalosporanic,Antibiotic, Cephalosporin,Cephalosporin Antibiotics
D002986 Clinical Trials as Topic Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries. Clinical Trial as Topic
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004347 Drug Interactions The action of a drug that may affect the activity, metabolism, or toxicity of another drug. Drug Interaction,Interaction, Drug,Interactions, Drug
D004357 Drug Synergism The action of a drug in promoting or enhancing the effectiveness of another drug. Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013207 Staphylococcal Skin Infections Infections to the skin caused by bacteria of the genus STAPHYLOCOCCUS. Skin Diseases, Staphylococcal,Infections, Staphylococcal Skin,Skin Infections, Staphylococcal,Staphylococcal Diseases, Skin,Staphylococcal Infections, Skin,Staphylococcal Skin Diseases
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D055624 Methicillin-Resistant Staphylococcus aureus A strain of Staphylococcus aureus that is non-susceptible to the action of METHICILLIN. The mechanism of resistance usually involves modification of normal or the presence of acquired PENICILLIN BINDING PROTEINS. MRSA,Methicillin Resistant Staphylococcus aureus

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