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Products and Services
Cancer Type
Supplies & Tools
Scientific Focus
4 - 8 days
Detect and identify monoclonal immunoglobulin gammopathies in the presence of therapeutic monoclonal antibody (mAbs) drug treatment with isatuximab (SARCLISA®), a human IgG1 kappa mAb, which migrates in the electrophoretic gamma globulin zone of the electrophoresis gel. In this laboratory procedure, the isatuximab in vitro interference is removed using an anti-isatuximab antibody reagent. This procedure will characterize the specific light and heavy chain components of a monoclonal protein without isatuximab interference.
State patient's age and clinical diagnosis on the test request form.
Electrophoresis followed by immunodiffusion against mono-specific antisera to immunoglobulin and individual heavy and light chains (IFE); turbidimetric quantitation of IgA, IgG, IgM.
The HYDRASHIFT 2/4 isatuximab gel shift assay uses an anti-isatuximab antibody to allow for the migration of isatuximab/anti-Isatuximab complexes away from the gamma globulin zone on IFE, toward the alpha-1-globulin fraction, thus removing IgG kappa interference in the gamma globulin zone caused by isatuximab in the patient's serum.
SARCLISA® (isatuximab) is a human monoclonal IgG Kappa antibody targeting CD38 that has been shown to provide clinical benefit as monotherapy in heavily pre-treated multiple myeloma patients and when combined with standard of care regimens for the treatment of MM in patients with the earlier disease.
The HYDRASHIFT 2/4 isatuximab reagent allows the laboratory to distinguish isatuximab interference from endogenous M protein1 on Hydragel IF assay.
A negative immunofixation result with HYDRASHIFT 2/4 isatuximab may suggest a complete response (CR) or stringent complete response (sCR) to therapy along with other clinical assessment for patients receiving isatuximab.2
Information on collection, storage, and volume
Serum
2 mL
1 mL
Red-top tube or gel-barrier tube
Room temperature
Plasma sample
Separate serum from red cells.
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