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Clinical Outcomes of Eravacycline in Patients Treated Predominately for Carbapenem-Resistant Acinetobacter baumannii
Sara Alosaimy1, Taylor Morrisette1, Abdalhamid M Lagnf1
1Anti-Infective Research Laboratory, Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State Universitygrid.254444.7, Detroit, Michigan, USA.
Abstract:
Forty-six patients were treated with eravacycline (ERV) for Acinetobacter baumannii infections, where 69.5% of isolates were carbapenem resistant (CRAB). Infections were primarily pulmonary (58.3%), and most patients received combination therapy (84.4%). The median (IQR) ERV duration was 6.9 days (5.1 to 11.1). Thirty-day mortality was 23.9% in the cohort and 21.9% in CRAB patients. One patient experienced an ERV-possible adverse event. IMPORTANCE Acinetobacter baumannii, particularly when carbapenem resistant (CRAB), is one of the most challenging pathogens in the health care setting. This is complicated by the fact that there is no consensus guideline regarding management of A. baumannii infections. However, the recent Infectious Diseases Society of America guidelines for treatment of resistant Gram-negative infections provided expert recommendations for CRAB management. The panel suggest using minocycline among tetracycline derivatives rather than eravacycline (ERV) until sufficient clinical data are available. Therefore, we present the largest multicenter real-world cohort in patients treated with ERV for A. baumannii, where the majority of isolates were CRAB (69.5%). Our analysis demonstrate that patients treated with ERV-based regimens achieved a 30-day mortality of 23.9% and had a low incidence of ERV-possible adverse events (2.1%). This study is important as it fills the gap in the literature regarding the use of a novel tetracycline (i.e., ERV) in the treatment of this challenging health care infection.
Insights
Eravacycline (ERV) treatment for Acinetobacter baumannii infections, including carbapenem-resistant strains (CRAB), showed a 30-day mortality of 23.9% with few adverse events. This real-world data supports ERV use for challenging Gram-negative infections.
Area of Science:
- Infectious Diseases
- Antimicrobial Resistance
- Clinical Pharmacology
Background:
- Acinetobacter baumannii, especially carbapenem-resistant strains (CRAB), poses a significant healthcare challenge.
- Current management guidelines for CRAB infections lack consensus, with recent recommendations favoring minocycline over eravacycline (ERV).
Purpose of the Study:
- To evaluate the real-world effectiveness and safety of eravacycline (ERV) in patients with Acinetobacter baumannii infections.
- To provide clinical data on ERV use, particularly for carbapenem-resistant Acinetobacter baumannii (CRAB) infections, addressing a gap in current literature.
Main Methods:
- A multicenter, real-world cohort study involving 46 patients treated with eravacycline (ERV).
- Analysis of patient data including infection type, treatment duration, mortality rates, and adverse events.
- Focus on isolates, with 69.5% identified as carbapenem-resistant Acinetobacter baumannii (CRAB).
Main Results:
- The study cohort (n=46) primarily had pulmonary infections (58.3%) and received combination therapy (84.4%).
- Thirty-day mortality was 23.9% overall and 21.9% in the CRAB subgroup.
- Eravacycline (ERV)-based regimens demonstrated a low incidence of ERV-possible adverse events (2.1%).
Conclusions:
- Eravacycline (ERV)-based treatment is associated with acceptable outcomes and a low safety profile in a real-world setting for Acinetobacter baumannii infections.
- This study contributes crucial data supporting the use of eravacycline (ERV) for challenging Gram-negative infections, including CRAB.
- Findings may inform clinical practice and future guidelines regarding novel tetracycline use in antimicrobial resistance management.
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