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Strategies to Mitigate Infection Risk in Patients Receiving Complement Inhibitor Therapy.

Aruna K Subramanian1, Anuja Java2, Samir K Gupta3

  • 1Division of Infectious Diseases, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|February 19, 2026
PubMed
Summary
This summary is machine-generated.

Complement inhibitors can increase infection risk. Vaccinations and antibiotic prophylaxis are crucial for preventing encapsulated bacterial infections, especially meningococcal, in patients with kidney or eye diseases.

Keywords:
Antibiotic prophylaxisComplement inhibitorsEncapsulated bacteriaNeisseria meningitidisVaccination strategies

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Area of Science:

  • Immunology
  • Infectious Diseases
  • Nephrology
  • Ophthalmology

Background:

  • Systemic complement inhibitors increase the risk of encapsulated bacterial infections.
  • Gaps exist in provider awareness and clinical guidance for managing this risk.
  • Encapsulated bacteria, particularly meningococci, pose a significant threat.

Purpose of the Study:

  • To review the theoretical risks of infection with complement inhibitors.
  • To summarize evidence-based recommendations and expert opinions.
  • To identify knowledge gaps and suggest future research directions.

Main Methods:

  • Narrative review of existing literature.
  • Analysis of complement inhibitor mechanisms of action.
  • Synthesis of current guidelines and expert consensus.

Main Results:

  • Vaccinations and antibiotic prophylaxis are key preventive strategies.
  • Prophylaxis duration is currently provider-dependent due to limited evidence.
  • Consultation with infectious disease specialists is advised for prophylaxis selection.

Conclusions:

  • Proactive prevention strategies are essential for patients on complement inhibitors.
  • Further research is needed to establish optimal prophylaxis durations.
  • Prompt evaluation of patients with concerning symptoms is critical.