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Updated: Jul 18, 2026

Determination of the Relative Potency of an Anti-TNF Monoclonal Antibody (mAb) by Neutralizing TNF Using an In Vitro Bioanalytical Method
Published on: September 16, 2017
[Infections and TNFalpha antagonist treatment]
1CONSILIA Laboratoires et conseils médicaux SA, Av. Grand-Champsec 86, 1950 Sion. eric.dayer@consilia-sa.ch
Abstract:
The TNFalpha antagonists have become a standard treatment for many severe chronic inflammatory diseases. After a few years of practical use in individual patient's setting adverse effects, especially infectious have been recorded and a practical attitude can be proposed for prevention and follow-up. TNFalpha antagonists increase the risk of infection by intracellular pathogens. A latent tuberculosis infection must be looked for prior to the initiation of the treatment. A prophylaxis is started in case of positive result. The global infectious risk can also be minimized by an optimal vaccination coverage and a regular screening for leucopenia.
Insights
Tumor Necrosis Factor-alpha (TNFa) antagonists are effective for chronic inflammatory diseases but increase infection risk. Proactive screening for latent tuberculosis and monitoring for leucopenia are crucial for patient safety.
Area of Science:
- Immunology
- Pharmacology
- Infectious Diseases
Background:
- Tumor Necrosis Factor-alpha (TNFa) antagonists are established treatments for severe chronic inflammatory conditions.
- Clinical use has revealed an increased risk of adverse events, particularly infections, associated with TNFa antagonists.
- A practical approach is needed for the prevention and management of infections in patients receiving TNFa antagonists.
Purpose of the Study:
- To outline strategies for preventing and monitoring infections in patients treated with TNFa antagonists.
- To highlight the increased susceptibility to intracellular pathogens, including tuberculosis, with TNFa antagonist therapy.
- To propose guidelines for managing infectious risks associated with TNFa antagonist use.
Main Methods:
- Review of clinical data and established guidelines regarding TNFa antagonist therapy and infectious complications.
- Emphasis on pre-treatment screening for latent tuberculosis infection (LTBI).
- Recommendations for prophylactic measures and ongoing patient monitoring.
Main Results:
- TNFa antagonists significantly elevate the risk of infections, especially those caused by intracellular pathogens.
- Screening for latent tuberculosis infection prior to initiating TNFa antagonist treatment is essential.
- Prophylaxis for LTBI is indicated in positive cases.
- Minimizing global infectious risk involves optimal vaccination coverage and regular leucopenia screening.
Conclusions:
- Proactive management of infectious risks is paramount for patients undergoing TNFa antagonist therapy.
- Pre-treatment screening for latent tuberculosis and subsequent prophylaxis are critical.
- Maintaining optimal vaccination status and monitoring for leucopenia further mitigate infection risks.
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