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FDA ALERT

Sunday, 18 March 2007 18:00 Ramaz Mitaishvili
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March 19, 2007
FDA MedWatch: Zyvox (linezolid) - Clinical trial showed higher chance of death in the treatment of seriously ill patients with intravascular catheter-related bloodstream infections
FDA ALERTMedWatch - The FDA Safety Information and Adverse Event Reporting Program
FDA notified healthcare professionals of new emerging safety concerns about Zyvox (linezolid) from a recent clinical study. This open-label, randomized trial compared linezolid to vancomycin, oxacillin, or dicloxacillin in the treatment of seriously ill patients with intravascular catheter-related bloodstream infections including those with catheter-site infections. Patients treated with linezolid had a higher chance of death than did patients treated with any comparator antibiotic, and the chance of death was related to the type of organism causing the infection. Patients with Gram positive infections had no difference in mortality according to their antibiotic treatment. In contrast, mortality was higher in patients treated with linezolid who were infected with Gram negative organisms alone, with both Gram positive and Gram negative organisms, or who had no infection when they entered the study.
Linezolid is not approved for the treatment of catheter-related bloodstream infections, catheter-site infections, or for the treatment of infections caused by Gram negative bacteria. If infection with Gram negative bacteria is known or suspected, appropriate therapy should be started immediately.
Read the complete MedWatch 2007 Safety summary, including a link to the Drug Information Page, at:

Last Updated ( Monday, 11 February 2008 19:54 )  
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