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The Combination of Aztreonam-Avibactam in Multidrug-Resistant Gram-Negative Infections.

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Aztreonam-avibactam (ATM-AVI) shows promise for treating complicated intra-abdominal infections, with efficacy comparable to meropenem. Further research is needed to fully define ATM-AVI's role in other serious gram-negative infections.

Keywords:
Emblaveoaztreonam-avibactamcIAI

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Area of Science:

  • Infectious Diseases
  • Pharmacology
  • Clinical Medicine

Background:

  • Difficult-to-treat Gram-negative infections pose a significant clinical challenge.
  • Aztreonam-avibactam (ATM-AVI) is an antibiotic combination developed to address these resistant pathogens.

Purpose of the Study:

  • To review the pharmacology, safety, and clinical utility of aztreonam-avibactam (ATM-AVI).
  • To evaluate ATM-AVI's efficacy in treating complicated Gram-negative infections.

Main Methods:

  • Systematic literature search of PubMed, Embase, and ClinicalTrials.gov.
  • Inclusion of English-language articles from 1985 to 2025 focusing on ATM-AVI's pharmacology, safety, and clinical trials.
  • Analysis of data from the REVISIT trial comparing ATM-AVI to meropenem.

Main Results:

  • ATM-AVI demonstrated comparable efficacy to meropenem in complicated intra-abdominal infections (cIAI) and hospital/ventilator-acquired pneumonia (HAP/VAP).
  • Clinical cure rates for cIAI were 76.4% for ATM-AVI vs. 74% for meropenem.
  • Clinical cure rates for HAP/VAP were 45.9% for ATM-AVI vs. 41.7% for meropenem.
  • ATM-AVI was generally well-tolerated, with hepatic adverse effects being most common.

Conclusions:

  • Aztreonam-avibactam (ATM-AVI) may serve as an alternative treatment for cIAI and other complicated Gram-negative infections.
  • Further clinical studies are required to fully establish ATM-AVI's role in managing various infections.
  • Pharmacoeconomic evaluations may be necessary to determine the cost-benefit of ATM-AVI in specific healthcare systems.