Efficacy and safety of sulbactam–durlobactam versus colistin for the treatment of patients with serious infections caused by Acinetobacter baumannii–calcoaceticus complex: a multicentre, randomised, active-controlled, phase 3, non-inferiority clinical trial (ATTACK) - The Lancet Infectious Diseases
The urgent need for effective antibiotics against carbapenem-resistant Acinetobacter baumannii–calcoaceticus complex (ABC) infections led to a phase 3 randomized controlled trial comparing the efficacy and safety of sulbactam–durlobactam versus colistin. The trial involved adults with confirmed ABC-related infections, such as hospital-acquired bacterial pneumonia, ventilator-associated bacterial pneumonia, ventilated pneumonia, or bloodstream infections. Patients received either sulbactam–durlobactam or colistin, in combination with imipenem–cilastatin, as background therapy for 7-14 days.
The primary efficacy endpoint was 28-day all-cause mortality in patients with confirmed carbapenem-resistant ABC. The study concluded that sulbactam–durlobactam was non-inferior to colistin (28-day all-cause mortality of 19% versus 20%). Additionally, sulbactam–durlobactam showed a significantly lower incidence of nephrotoxicity compared to colistin. The trial demonstrated that sulbactam–durlobactam could…
So far There were no significant differences between the groups in terms of mortality, length of ICU and hospital stays, and duration of mechanical ventilation (MV).