IDKmonitor® Vedolizumab Drug Level ELISA

The IDKmonitor® Vedolizumab Drug Level ELISA is intended for the quantitative determination of free vedolizumab (therapeutic antibody against α4β7 integrin, e.g. ENTYVIO®) in EDTA plasma and serum.

For research use only. Not for use in diagnostic procedures.

For Laboratory Professional Use Only.

If you’re in Canada, we offer a Health Canada Licensed version of this kit: K9658

Manufactured by Immundiagnostik AG.

Also available:

• Vedolizumab Free ADA ELISA: KR9648
• Vedolizumab Drug Level LC-MS/MS Kit: KMR9600

Test Principle of the IDKmonitor® Vedolizumab Drug Level ELISA

In the first incubation step, the free vedolizumab from the sample is bound to the specific monoclonal anti-vedolizumab antibody coated on the plate. A washing step is carried out to remove all unbound substances. In a further incubation step, a Peroxidase-labeled antibody is added. Tetramethylbenzidine (TMB) is used as a substrate for peroxidase. Finally, an acidic stop solution is added to terminate the reaction.

The color changes from blue to yellow. The intensity of the yellow color is directly proportional to the concentration of free vedolizumab in the sample.

Using the values obtained from the standard, a dose-response curve of the absorbance unit (optical density, OD at 450 nm) vs. concentration is generated. This curve determines the presence of free vedolizumab in the samples directly.