Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/28/2025

Adalimumab-Associated Risks and Monitoring Requirements

Introduction to Adalimumab-Associated Risks

  • Gastrointestinal symptoms, including nausea and upset, are associated with adalimumab treatment 1
  • Cytopenias, including pancytopenia, can occur, though relatively uncommon, with adalimumab treatment 1
  • Thromboembolic events have a hazard ratio of 7.6 in patients developing anti-adalimumab antibodies 1
  • The American Society of Clinical Oncology recommends hematology consultation for serious hematologic effects and potential treatment discontinuation 1

Infectious Complications

  • TB screening is mandatory before initiating therapy with tuberculin skin testing and chest radiograph 2
  • Serious infection rate of 2.03 per 100 patient-years in long-term studies 2
  • Risk includes Legionella pneumophila pneumonia, Pneumocystis jirovecii pneumonia, and atypical mycobacteria 2
  • Deep fungal infections, particularly in endemic areas, are a risk associated with adalimumab treatment 2
  • Hepatitis serology is required before treatment initiation 2

Autoimmune Reactions

  • Lupus-like syndrome has been reported in 15 patients with adalimumab in systematic analysis 2
  • Vasculitis has been reported in five cases with adalimumab in detailed analysis 2
  • Drug-specific risk of vasculitis is documented in rheumatoid arthritis patients 3, 4

Pulmonary Complications

  • Pulmonary fibrosis can occur as a new event or exacerbation of underlying fibrosis 2
  • Interstitial pneumonias have been reported in at least 18 patients receiving anti-TNF agents 2
  • Sarcoidosis cases have been reported, with an unclear mechanism 2

Monitoring Requirements

  • Pre-treatment screening should include tuberculin skin testing and chest radiograph 2
  • Pre-treatment screening should include hepatitis B serology 2
  • Patient education priorities include reporting fever, infection signs, and avoiding live vaccines during therapy 2

Pregnancy and Lactation

  • Adalimumab is classified as FDA Category B for all trimesters 2
  • Increased first trimester miscarriage rate has been reported 2
  • Safety in breastfeeding is unknown, with antibodies secreted in milk, and caution is recommended 5