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Antimicrobial Agents and Chemotherapy, December 2000, p. 3408-3413, Vol. 44, No. 12
0066-4804/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Randomized Comparison of Linezolid (PNU-100766)
versus Oxacillin-Dicloxacillin for Treatment of Complicated Skin
and Soft Tissue Infections
Dennis L.
Stevens,1,2,*
Leon G.
Smith,3
Jon B.
Bruss,4
Maureen A.
McConnell-Martin,4
Sue E.
Duvall,4
Wesley Mark
Todd,4 and
Barry
Hafkin4 for the Linezolid
Skin and Soft Tissue Infections Study Group
Infectious Diseases Section, Veterans
Administration Medical Center, Boise, Idaho1;
University of Washington School of Medicine,
Seattle, Washington2; Saint
Michael's Medical Center, Newark, New
Jersey3; and Pharmacia & Upjohn, Kalamazoo, Michigan4
Received 14 February 2000/Returned for modification 12 July
2000/Accepted 6 September 2000
This randomized, double-blind, multicenter trial compared the
efficacy and safety of linezolid, an oxazolidinone, with those of
oxacillin-dicloxacillin in patients with complicated skin and soft
tissue infections. A total of 826 hospitalized adult patients were
randomized to receive linezolid (600 mg intravenously [i.v.]) every
12 h or oxacillin (2 g i.v.) every 6 h; following sufficient clinical improvement, patients were switched to the respective oral
agents (linezolid [600 mg orally] every 12 h or dicloxacillin [500 mg orally] every 6 hours). Primary efficacy variables were clinical cure rates in both the intent-to-treat (ITT) population and
clinically evaluable (CE) patients and microbiological success rate in
microbiologically evaluable (ME) patients. Safety and tolerability were
evaluated in the ITT population. Demographics and baseline
characteristics were similar across treatment groups in the 819 ITT
patients. In the ITT population, the clinical cure rates were 69.8 and
64.9% in the linezolid and oxacillin-dicloxacillin groups,
respectively (P = 0.141; 95% confidence interval
1.58 to 11.25). In 298 CE linezolid-treated patients, the clinical cure rate was 88.6%, compared with a cure rate of 85.8% in 302 CE
patients who received oxacillin-dicloxacillin. In 143 ME
linezolid-treated patients, the microbiological success rate was
88.1%, compared with a success rate of 86.1% in 151 ME
patients who received oxacillin-dicloxacillin. Both agents were well
tolerated; most adverse events were of mild-to-moderate intensity. No
serious drug-related adverse events were reported in the linezolid
group. These data support the use of linezolid for the treatment of
adults with complicated skin and soft tissue infections.
*
Corresponding author. Mailing address: Infectious
Diseases Section, Bldg. 45, VA Medical Center, 500 W. Fort St., Boise,
ID 83702. Phone: (208) 422-1599. Fax: (208) 422-1364. E-mail:
dlsteven{at}primenet.com.
Antimicrobial Agents and Chemotherapy, December 2000, p. 3408-3413, Vol. 44, No. 12
0066-4804/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
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