relebactam
Mechanisms of ResistanceMolecular Basis of Class A β-Lactamase Inhibition by Relebactamβ-Lactamase production is the major β-lactam resistance mechanism in Gram-negative bacteria. β-Lactamase inhibitors (BLIs) efficacious against serine β-lactamase (SBL) producers, especially strains carrying the widely disseminated class A enzymes, are required. Relebactam, a diazabicyclooctane (DBO) BLI, is in phase 3 clinical trials in combination with imipenem for the treatment of infections by multidrug-resistant...
SusceptibilityIn Vitro Activity of the New β-Lactamase Inhibitors Relebactam and Vaborbactam in Combination with β-Lactams against Mycobacterium abscessus Complex Clinical IsolatesPulmonary disease due to infection with Mycobacterium abscessus complex (MABC) is notoriously difficult to treat, in large part due to the intrinsic resistance of MABC strains to most antibiotics, including β-lactams. MABC organisms express a broad-spectrum β-lactamase that is resistant to traditional β-lactam-based β-lactamase inhibitors but inhibited by a newer non-...
- PharmacologyPharmacokinetics, Safety, and Tolerability of Single and Multiple Doses of Relebactam, a β-Lactamase Inhibitor, in Combination with Imipenem and Cilastatin in Healthy Participants
Relebactam is a novel class A and C β-lactamase inhibitor that is being developed in combination with imipenem-cilastatin for the treatment of serious infections with Gram-negative bacteria. Here we report on two phase 1 randomized, double-blind, placebo-controlled pharmacokinetics, safety, and tolerability studies of relebactam administered with or without imipenem-cilastatin to healthy participants: (i) a single-dose (25 to 1,150 mg)...
- Experimental TherapeuticsIn Vivo Efficacy of Relebactam (MK-7655) in Combination with Imipenem-Cilastatin in Murine Infection Models
The World Health Organization has identified antimicrobial resistance as a global public health threat since the prevalence and spread of antibiotic resistance among bacterial pathogens worldwide are staggering. Carbapenems, such as imipenem and meropenem, have been used to treat multidrug-resistant bacteria; however, since the development of resistance to carbapenems, β-lactam antibiotics in combination with β-lactamase inhibitors (BLI...
- Mechanisms of ResistanceInactivation of the Pseudomonas-Derived Cephalosporinase-3 (PDC-3) by Relebactam