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Current Management Strategies for Stenotrophomonas maltophilia

Ya-Ting Chang1, Po-Liang Lu2, David L Paterson3

  • 1ADVANCE-ID, Saw Swee Hock School of Public Health, National University of Singapore, Singapore; Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.

Infectious Disease Clinics of North America
|December 13, 2025
PubMed

Insights

Optimal treatment for Stenotrophomonas maltophilia infections is unclear. Combination therapy may benefit severe cases, but no regimen is proven superior, necessitating further research into effective antimicrobial strategies.

Area of Science:

  • Infectious Diseases
  • Medical Microbiology
  • Pharmacology

Background:

  • Stenotrophomonas maltophilia infections pose significant therapeutic challenges due to undefined optimal treatment strategies.
  • Current evidence suggests combination therapy for immunocompromised patients and severe infections, but lacks definitive superiority data.
  • No single antimicrobial agent consistently demonstrates reliable bactericidal activity against this pathogen.

Purpose of the Study:

  • To review current therapeutic strategies for Stenotrophomonas maltophilia infections.
  • To identify gaps in clinical evidence regarding treatment efficacy.
  • To highlight the need for rigorous clinical trials to establish optimal treatment regimens.

Main Methods:

  • Literature review of existing evidence on Stenotrophomonas maltophilia treatment.
  • Analysis of traditional and novel antimicrobial agents.
  • Assessment of the current state of clinical trial data.

Main Results:

  • Traditional agents like trimethoprim-sulfamethoxazole, minocycline, and levofloxacin remain crucial.
  • Emerging agents such as cefiderocol and aztreonam-avibactam show promise but require further validation.
  • No randomized controlled trials have been published for S. maltophilia infections.

Conclusions:

  • Optimal therapeutic strategies for Stenotrophomonas maltophilia infections are not well-defined.
  • Well-designed clinical studies are urgently required to guide treatment decisions.
  • Further research is needed to validate novel agents and confirm the superiority of specific regimens.
Keywords:
BreakpointCombination therapyMonotherapyPharmacodynamicPharmacokineticStenotrophomonas maltophiliaTreatment

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