Multicenter Open-label Randomized Controlled Trial (RCT) to Compare Colistin Alone Versus Colistin Plus Meropenem

Multicenter Open-label RCT to Compare Colistin Alone vs. Colistin Plus Meropenem

The purpose of this study is to determine whether the addition of meropenem to colistin is better than colistin alone in the treatment of clinically significant infections caused by multi-drug resistant bacteria

Inclusion Criteria:

• Adult inpatients
• Clinically significant, microbiological-documented infection caused by carbapenem-resistant and colistin-susceptible Gram-negative bacteria and identified according to CDC criteria- blood stream infections, hospital acquired pneumonia, ventilator associated pneumonia, and urinary tract infections
• Patient recruitment will occur only after microbiological documentation and susceptibility testing. Patients will be included within 96 hours of the time the index culture was taken (typically within 48 hours of isolate identification), regardless of the antibiotic treatment administered during this time period.

Exclusion Criteria:

• Previous inclusion in the trial. Patients will be included in the RCT only once for the first identified episode of infection
• Pregnant women
• Epilepsy or prior seizures
• Known allergy to colistin or a carbapenem