Vancomycin Versus Daptomycin for the Treatment of Methicillin Resistant Staphylococcus Aureus (MRSA) Bacteremia

Summary

The aim of this study is to compare the efficacy of daptomycin treatment versus vancomycin treatment in the treatment of methicillin resistant staphylococcus aureus (MRSA) bloodstream infections (BSI) due to isolates with high vancomycin minimum inhibitory concentrations (MIC) (i.e. \> or equal to 1.5 ug/ml) in terms of reducing all-cause mortality. Our secondary aim is to compare clinical failure rates of daptomycin treatment versus vancomycin treatment and to compare time to microbiological clearance in patients treated with daptomycin versus those treated with vancomycin. Our primary hypothesis is that Daptomycin treatment is superior to vancomycin treatment in reducing mortality from BSIs due to MRSA with high vancomycin MIC from 25% to 10%.

Timeline

Start

2014-01

Primary completion

2015-12

Completion

2015-12

Publications

• Kalimuddin S, Chan YFZ, Phillips R, Ong SP, Archuleta S, Lye DC, Tan TT, Low JGH. A randomized phase 2B trial of vancomycin versus daptomycin for the treatment of methicillin-resistant Staphylococcus aureus bacteremia due to isolates with high vancomycin minimum inhibitory concentrations - results of a prematurely terminated study. Trials. 2018 Jun 1;19(1):305. doi: 10.1186/s13063-018-2702-8.
• Kalimuddin S, Phillips R, Gandhi M, de Souza NN, Low JG, Archuleta S, Lye D, Tan TT. Vancomycin versus daptomycin for the treatment of methicillin-resistant Staphylococcus aureus bacteremia due to isolates with high vancomycin minimum inhibitory concentrations: study protocol for a phase IIB randomized controlled trial. Trials. 2014 Jun 19;15:233. doi: 10.1186/1745-6215-15-233.

Drugs

Indications