Davis JS

Sud A

O'Sullivan MVN

Robinson JO

Ferguson PE

Foo H

van Hal SJ

Ralph AP

Howden BP

Binks P

Kirby A

Tong SYC

Majumdar S

Baird RW

Gordon C

Jeremiah C

Leung G

Brischetto A

Crowe A

Dakh F

Whykes K

Kirkwood M

Menon M

Somerville L

Subedi S

Owen S

Liu E

Zhou F

Robinson O

Coombs G

Pollet S

Davis R

2016-01-15

In vitro laboratory and animal studies demonstrate a synergistic role for the combination of vancomycin and antistaphylococcal β-lactams for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia. Prospective clinical data are lacking. In this open-label, multicenter, clinical trial, adults with MRSA bacteremia received vancomycin 1.5 g intravenously twice daily and were randomly assigned (1:1) to receive intravenous flucloxacillin 2 g every 6 hours for 7 days (combination group) or no additional therapy (standard therapy group). Participants were stratified by hospital and randomized in permuted blocks of variable size. Randomization codes were kept in sealed, sequentially numbered, opaque envelopes. The primary outcome was the duration of MRSA bacteremia in days. We randomly assigned 60 patients to receive vancomycin (n = 29), or vancomycin plus flucloxacillin (n = 31). The mean duration of bacteremia was 3.00 days in the standard therapy group and 1.94 days in the combination group. According to a negative binomial model, the mean time to resolution of bacteremia in the combination group was 65% (95% confidence interval, 41%-102%; P = .06) that in the standard therapy group. There was no difference in the secondary end points of 28- and 90-day mortality, metastatic infection, nephrotoxicity, or hepatotoxicity. Combining an antistaphylococcal β-lactam with vancomycin may shorten the duration of MRSA bacteremia. Further trials with a larger sample size and objective clinically relevant end points are warranted. Australian New Zealand Clinical Trials Registry: ACTRN12610000940077 (www.anzctr.org.au).

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2016-01-15; 62(2): 173-180

https://pubmed.ncbi.nlm.nih.gov/26349552/?otool=iaurydwlib

https://hdl.handle.net/10137/5443

MRSA

Staphylococcus aureus

bacteremia

clinical trial

vancomycin

β-lactam

Administration, Intravenous

Adolescent

Adult

Aged

Aged, 80 and over

Animals

Anti-Bacterial Agents

Bacteremia

Drug Therapy, Combination

Female

Floxacillin

Humans

Male

Methicillin-Resistant Staphylococcus aureus

Middle Aged

New Zealand

Prospective Studies

Staphylococcal Infections

Time Factors

Treatment Outcome

Vancomycin

Young Adult

Combination of Vancomycin and β-Lactam Therapy for Methicillin-Resistant Staphylococcus aureus Bacteremia: A Pilot Multicenter Randomized Controlled Trial.

Journal Article

Multicenter Study

Randomized Controlled Trial

Publication