Test directory: Vedolizumab Rflx to Vedolizumab Ab

Ordering Code 7783
Test Name Vedolizumab Rflx to Vedolizumab Ab
Alias Vedolizumab Quantitation with Rflx to Antibodies, Serum
Vedolizumab
VEDO
Entyvio
Preferred Specimen Serum
Preferred Container Plain (Red)
Other Specimen/Container Serum in SST (Gold)
Optimum Volume 1.5 mL
Collection Instructions For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins

Nivolumab (Opdivo) must be discontinued at least 4 weeks prior to testing for Vedolizumab quantitation in serum

When Vedolizumab result is 15.0 mcg/mL or less, then testing for antibodies to Vedolizumab will be performed.
Handling Instructions Draw blood immediately before next scheduled dose (trough specimen).
Transport Requirements Oahu: Refrigerated
Airline: Refrigerated
Specimen Stability Ambient: Not Stable
Refrigerated: 28 Days
Frozen: 28 Days
Avail. Stat NO
Analytic Time 10 Days
Methodology Liquid Chromatography-Mass Spectrometry (LC-MS/MS)
Reference Lab  Mayo Medical Lab

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Vedolizumab QN ALL mcg/mL

For...
For concentrations of Vedolizumab less than or equal to 15.0 mcg/mL, reflex testing for antibodies-to-Vedolizumab will be performed

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug
Administration

See report.
Note1

Note1:


For concentrations of Vedolizumab less than or equal to 15.0 mcg/mL, reflex testing for antibodies-to-Vedolizumab will be performed

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug
Administration

See report..