In ELISA, Gastroenterology, Therapeutic drug monitoring

Ann Gils and her colleagues from KU Leuven evaluated if the biosimilars were equally well quantified as the original infliximab (IFX) drug in their clinically validated infliximab assay.

The researchers demonstrated that the assay shows identical reactivity towards the biosimilars as to the original brand and is well suited for therapeutic drug monitoring (TDM) of the biosimilars.

The clinically validated assay has been converted into the CE-marked ELISA RIDASCREEN IFX Monitoring by R-Biopharm. For more information, please read the abstract.

Relevance of therapeutic drug monitoring

Therapeutic Drug Monitoring (TDM) is a means by which drug concentrations in a patients’ blood can be monitored. In many cases, TDM is crucial for the success of the treatment as the bioavailability is relevant for a drug to work. Drug levels vary due to individual pharmacokinetics. TDM helps to optimize the treatment of patients by adjusting the dose to the individually required level, moreover it helps to reduce treatment cost.

To learn more about the relevance of TDM, please read the TAXIT study.

Infliximab and its biosimilars

Infliximab (IFX) is a chimeric antibody directed against the pro-inflammatory cytokine TNFα, a so-called TNFα-blocker. It is used for a number of inflammatory diseases such as Ulcerative colitis and Crohn’s disease.


Interested in more information about therapeutic drug monitoring? Please contact our TDM experts.

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