Complicated urinary tract infections: an update of new and developing antibiotics

Expert Opin Pharmacother. 2025 Jan 8:1-11. doi: 10.1080/14656566.2024.2446632. Online ahead of print.

Abstract

Introduction: Complicated urinary tract infections (cUTIs) represent a significant clinical challenge due to their association with sepsis, high morbidity and mortality, and an increased risk of recurrence and chronic infection. Effective management requires prompt, targeted interventions.

Areas covered: This review highlights the importance of early, targeted antibiotic therapy based on local resistance profiles, patient-specific factors, and pharmacokinetic/pharmacodynamic considerations. We examined emerging and existing antibiotics, including beta-lactams, fluoroquinolones, aminoglycosides, and beta-lactamase inhibitor combinations, which show potential against multidrug-resistant organisms (MDRO) linked to cUTI. Additionally, we propose revisiting the broad definition of cUTI to promote a more pragmatic approach that minimizes unnecessary antibiotic use and hospitalization.

Expert opinion: Current evidence underscores the need for antimicrobial stewardship, precise diagnostics, and innovative therapies to address cUTI while mitigating antimicrobial resistance. A targeted, patient-centered approach is essential to optimize outcomes and reduce the burden of resistant infections.

Keywords: Complicated urinary tract infection; antimicrobial therapy; bacterial resistance; clinical outcomes; inflammatory markers; treatment duration.

Publication types

  • Review