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Analysis of Lymphocyte Cell Surface Adhesion Marker Expression in Natalizumab Population With Active Control

Multiple Sclerosis Clinical Trial

Official title:
Analysis of Lymphocyte Cell Surface Adhesion Marker Expression in a Natalizumab Treated Population With Active Control Assessment

Clinical Trial Summary

The purpose of the study is to research the association between receiving Tysabri® (natalizumab), interferon beta-1a, glatiramer acetate or not having any treatment for your MS and how it may or may not impact certain white blood cells and other immunological markers. This information may be useful in identifying risk factors in developing progressive multifocal leukoencephalopathy (PML). It does appear that the risk increases with the total number of natalizumab infusions. Patients who have not yet started a disease modifying therapy or who have been on one other than natalizumab are needed as controls to see how these biomarkers change.

Patients at various stages of natalizumab treatment as well as natalizumab naïve are needed to allow for analysis of the change in potential markers over time.

Clinical Trial Description

Patients at various timepoints in their MS treatment or who are beginning certain MS treatments will be consented and have blood specimens collected to allow for an immunological comparison. The decision to treat with disease modifying therapies is made independently from this observational study.

Primary endpoint: To further understand the delineation of lymphocyte cell adhesion marker down regulation within a treatment naïve patient population and at various stages of treatment.

Secondary endpoint: To understand the correlation between natalizumab pharmacodynamics, pharmacokinetics and lymphocyte cell adhesion marker down regulation.

The results of various biomarkers and immunological testing (including CD62L, LFA-1, sCD62L, sLFA-1, sVCAM, VLA-4 saturation, IgG4, CBC with absolute differential) will be compared amongst the groups consented. The treatment naive group will be compared longitudinally. ;

Study Design

Observational Model: Cohort

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01626248
Study type Observational
Source Rocky Mountain MS Research Group, LLC
Contact
Status Completed
Phase N/A
Start date July 2012
Completion date April 2013
View Details
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