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Ceftazidime-avibactam + Aztreonam

National University of Singapore · FDA-approved active Small molecule

Ceftazidime-avibactam inhibits bacterial cell wall synthesis while avibactam protects against β-lactamase degradation, and aztreonam provides additional coverage against gram-negative bacteria including those resistant to other β-lactams.

Ceftazidime-avibactam inhibits bacterial cell wall synthesis while avibactam protects against β-lactamase degradation, and aztreonam provides additional coverage against gram-negative bacteria including those resistant to other β-lactams. Used for Complicated intra-abdominal infections, Complicated urinary tract infections, Hospital-acquired and ventilator-associated bacterial pneumonia.

At a glance

Generic nameCeftazidime-avibactam + Aztreonam
SponsorNational University of Singapore
Drug classβ-lactam antibiotic combination with β-lactamase inhibitor
TargetBacterial penicillin-binding proteins; β-lactamases
ModalitySmall molecule
Therapeutic areaInfectious Disease
PhaseFDA-approved

Mechanism of action

Ceftazidime is a third-generation cephalosporin that binds penicillin-binding proteins and inhibits bacterial cell wall cross-linking. Avibactam is a β-lactamase inhibitor that protects ceftazidime from enzymatic degradation by resistant organisms. Aztreonam is a monobactam antibiotic that also inhibits cell wall synthesis and provides synergistic coverage, particularly against multidrug-resistant gram-negative pathogens including Pseudomonas aeruginosa and Enterobacteriaceae.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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