Thursday, September 18, 2008

New Antimicrobial against Methicillin-resistant Staphylococcus aureus (MRSA)

ZEFTERA the only approved antibiotic in its class (cephalosporin) by Health Canada to demonstrate efficacy against Methicillin-resistant Staphylococcus aureus (
MRSA), a growing public health concern in both hospital and community settings.ZEFTERA is specially designed to tightly bind to and inhibit targets in both gram-positive (including MRSA) and gram-negative bacteria. The approval of ZEFTERA for the treatment of complicated skin and skin structure infections, including non-limb threatening diabetic foot infections without concomitant osteomyelitis, was based on results of two Phase III, double-blind, randomized, multi-centre, global trials involving 817 patients with cSSSI 2,3. The second Phase III trial included patients with non-limb threatening diabetic foot infections (mild, moderate or severe)3. Pathogens identified at baseline in this subpopulation included MSSA (38 per cent), MRSA (13 per cent), E. cloacae (9 per cent), and P. mirabilis (7 per cent). The results demonstrated the non-inferiority of ceftobiprole versus vancomycin plus ceftazidime in the treatment of diabetic foot infections. In both studies, ZEFTERA was well tolerated. The most common treatment-emergent adverse reactions were nausea (9 per cent) taste disturbance (6 per cent), diarrhea (5 per cent) and vomiting (5 per cent).

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