Analysis of MS Patients Who Have Had Greater Than 60 Infusions of Natalizumab
Study Details
Study Description
Brief Summary
The purpose of this study is to explore the safety and efficacy data in clinic patients who have been treated with Natalizumab for more than 60 continuous infusions.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
Detailed Description
This is a retrospective chart review and data analysis of patients at the MS Center of Northeastern New York , P.C., who have had greater than 60 continuous infusions prior to the IRB approval date. Only records that are in existence at the time of the IRB review and approval will be accessed for inclusion in the data analysis.
Study Design
Outcome Measures
Primary Outcome Measures
- Number of reported cases of PML ( progressive multifocal leukoencephalopathy) [While on Natalizumab (Dosing) to one year after natalizumab use (Termination Date)]
Total number of cases of PML as reported by chart review. Progressive multifocal leukoencephalopathy (PML) is a disease of the white matter of the brain, caused by a virus infection that targets cells that make myelin--the material that insulates nerve cells (neurons).
- Number of documented exacerbations [While on Natalizumab (Dosing) to one year after natalizumab use (Termination Date)]
Total number of documented exacerbations as reported in chart review . An MS exacerbation or relapse is defined as a monophasic clinical episode with patient-reported symptoms and objective findings typical of MS, reflecting a focal or multifocal inflammatory demyelinating event in the central nervous system, developing acutely or sub-acutely, with a duration of at least 24 hours, with or without recovery, and in the absence of fever or infection.
- Change in EDSS Score [One year prior to natalizumab use (Baseline), while on Natalizumab (Dosing), to one year after natalizumab use (Termination Date)]
Expanded Disability Assessment- (EDSS) The EDSS is a method of quantifying disability in multiple sclerosis and monitoring changes in the level of disability over time. The scale ranges from 0 to 10 in 0.5 unit increments that represent higher levels of disability.
- Number of new MRI lesions [While on Natalizumab (Dosing) to one year after natalizumab use (Termination Date)]
Total number of new lesions as reported on MRI (Magnetic Resonance Imaging) MRI can indicate MS disease activity by showing a pattern consistent with inflammation of active demyelinating lesions. It can show types of lesions that are new or getting bigger due to demyelination (damage to the myelin that covers certain nerves).
Secondary Outcome Measures
- Change in JCV Ab index value [One year prior to natalizumab use (Baseline), while on Natalizumab (Dosing), to one year after natalizumab use (Termination Date)]
Change in semi-annual JCV Ab (John Cunningham Virus Antibody) index value. The JC Virus (JCV) is associated with a increased risk of progressive multifocal leukoencephalopathy (PML). Detection of antibodies to JCV in serum or plasma is a reliable indicator of exposure to JCV.
- Number of reported clinically significant changes on MRI that may indicate other opportunistic infections. [One year prior to natalizumab use (Baseline), while on Natalizumab (Dosing), to one year after natalizumab use (Termination Date)]
Number of reported clinically significant changes on MRI as reported. Magnetic Resonance Imaging (MRI) is a non-invasive imaging technology that produces three dimensional detailed anatomical images. It is often used for disease detection, diagnosis, and treatment monitoring.
- Number of clinically significant lab values as measured CMP ( Comprehensive Metabolic Panel) [While on Natalizumab (Dosing), to one year after natalizumab use (Termination Date)]
A comprehensive metabolic panel (CMP) is a test that measures 14 different substances in your blood. It provides important information about your body's chemical balance and metabolism. Clinically significant changes in values will be recorded.
- Number of clinically significant lab values as measured by the CBC (Complete Blood Count) [While on Natalizumab (Dosing), to one year after natalizumab use (Termination Date)]
The complete blood count (CBC) is a group of tests that evaluate the cells that circulate in blood, including red blood cells (RBCs), white blood cells (WBCs), and platelets (PLTs). The CBC can evaluate your overall health and detect a variety of diseases and conditions, such as infections, anemia and leukemia. Clinically significant changes in values will be recorded.
Eligibility Criteria
Criteria
Inclusion Criteria:
- Multiple Sclerosis patients treated with long term use of natalizumab--60 or more infusions (5 years)
Exclusion Criteria:
- Patients who do not have 60 or more infusions (5 years) of Natalizumab.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Multiple Sclerosis Center of Northeastern New York, P.C. | Latham | New York | United States | 12110 |
Sponsors and Collaborators
- Multiple Sclerosis Center of Northeastern New York
Investigators
- Principal Investigator: Keith R Edwards, M.D., MS Center of Northeastern New York, P.C.
Study Documents (Full-Text)
None provided.More Information
Publications
- Gunnarsson M, Malmeström C, Axelsson M, Sundström P, Dahle C, Vrethem M, Olsson T, Piehl F, Norgren N, Rosengren L, Svenningsson A, Lycke J. Axonal damage in relapsing multiple sclerosis is markedly reduced by natalizumab. Ann Neurol. 2011 Jan;69(1):83-9. doi: 10.1002/ana.22247. Epub 2010 Dec 8.
- Miravalle A, Jensen R, Kinkel RP. Immune reconstitution inflammatory syndrome in patients with multiple sclerosis following cessation of natalizumab therapy. Arch Neurol. 2011 Feb;68(2):186-91. doi: 10.1001/archneurol.2010.257. Epub 2010 Oct 11.
- US-TYS-11750