Antimicrobial prophylaxis for patients taking immunomodulatory drugs

Baillet, 2016

The optimal approach to antimicrobial prophylaxis for patients taking immunomodulatory drugs for autoimmune or autoinflammatory disorders is not known; the following recommendations offer a practical approach based on expert consensus. The decision to start antimicrobial prophylaxis should be made by a specialist.

A person’s degree of immunosuppression can be influenced by multiple factors, including:

  • the immunomodulatory drug(s) used
  • the intensity of the drug regimen
  • current disease activity.

Guidance on when to give antimicrobial prophylaxis (eg Pneumocystis jirovecii pneumonia [PJP] prophylaxis) for patients taking corticosteroids or specific immunomodulatory drugs is addressed here. In particular, patients with pulmonary manifestations of their condition have a significantly increased risk of developing PJP compared to patients without pulmonary manifestationsHsu, 2021.

Specific advice on prophylaxis for some drugs is available in the Antibiotic guidelines, including: