New drugs such as Tysabri® offer highly specific and effective therapy for Multiple sclerosis patients. However, Tysabri® loses effectiveness when patients develop antibodies to the drug. Detecting these antibodies early allows healthcare providers the opportunity to prescribe alternative therapy and avoid the cost associated with failed therapy.
Immediately following collection, mix sample by gently inverting 5 times
Frozen (preferred) - 2 weeks
Refrigerated (OK) - 2 weeks
Enzyme-linked immunosorbent assay (ELISA)
Negative