Real-life Data on Cefiderocol Efficacy and Safety to Treat Multidrug-Resistant Acinetobacter baumannii Infections

• Published in: Open forum infectious diseases 2023-12, Vol.10 (12), p.ofad627-ofad627
• Main Authors: Campogiani, Laura, Crea, Angela Maria Antonia, Minardi, Maria Letizia, Ansaldo, Lorenzo, Coppola, Luigi, Compagno, Mirko, Vitale, Pietro, Spalliera, Ilaria, Malagnino, Vincenzo, Teti, Elisabetta, D'agostini, C, Pennacchiotti, Chiara, Abate, Davide Natale, Celeste, Maria Grazia, Andreoni, Massimo, Iannetta, Marco, Sarmati, Loredana
• Format: Article
• Language: English
• Subjects: Major
• ISSN: 2328-8957; 2328-8957
• DOI: 10.1093/ofid/ofad627

The objective of this study was to expand data on cefiderocol efficacy to treat multidrug-resistant infections. This was a retrospective monocentric study including patients hospitalized (>24 hours) at Policlinico Tor Vergata, Rome, Italy, between May 1, 2021, and September 1, 2022, treated with cefiderocol (>48 hours). The primary objective was early clinical improvement at 48-72 hours from cefiderocol start; secondary objectives were clinical success (composite outcome of infection resolution and 14-day survival), breakthrough infection, overall 30-day mortality, and cefiderocol-related adverse events. Eleven patients were enrolled; 91% males (10/11), with a median age (interquartile range [IQR]) of 69 (59-71) years, 91% had ≥1 comorbidity, and 72.7% (8/11) were hospitalized in internal medicine wards. Six patients with bloodstream infection (54.5%; 4 primary, 2 central line-associated), 2 with pneumonia (18.2%), 2 with urinary tract infections (18.2%), and 1 with intra-abdominal infection (9.1%) were treated. Four patients (36.3%) presented with septic shock at cefiderocol start. Cefiderocol was used as monotherapy in 3/11 patients (27.3%), was combined with colistin in all the other 8 cases, and was used in triple combination with tigecycline in 2 patients. The median duration of treatment (IQR) was 12 (10-14) days. Early clinical improvement was documented in 8/11 patients (72.7%), clinical success in 8/11 patients (72.7%). Overall 30-day mortality was 27.3% (3/11), with death occurring a median (IQR) of 19 (17.5-20.5) days after the start of therapy. No cefiderocol-related adverse events were documented. Cefiderocol seems to be a safe and effective option for multidrug-resistant infections.