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Archive for the tag “tests”

New Research on Lemtrada Reveals Insights into the Cause of Potential Side Effects

Researchers in the U.K. have evaluated additional findings about the immune-system impacts of Lemtrada® (alemtuzimab, Sanofi Genzyme), a disease-modifying therapy for treating people with relapsing MS.

The team used data from phase 3 clinical trials submitted to the European Medicines Agency during the drug’s successful approval process. Some of this data was previously reported at medical meetings and in Lemtrada’s prescribing information.

Among their findings, they report that Lemtrada caused long-term reduction of specific immune cells (memory B and T cells, including regulatory T cells). They also found that the body rapidly repopulated an overabundance of immature B cells.

They propose that the blockade of memory B and T cells drives the beneficial effects of Lemtrada.

They also speculate that the known potential side effect for autoimmune thyroid disease and other autoimmune disorders may be triggered by the overabundance of immature B cells that occurs when there are few regulatory T cells to keep them in check.

Studies like this one, which reveal more information about a therapy’s mode of action, are important and may also lead to insights about how to reduce side effects.

Drs. Klaus Schmierer, David Baker and others at the Queen Mary University of London report their findings in JAMA Neurology, published online June 12, 2017.

Read the open-access paper in JAMA Neurology
Read about Lemtrada
Read more about treating MS

Lemtrada is a registered trademark of Sanofi Genzyme

New MS Research

This month in Lancet Neurology, a Canadian research team reports there is a pre-clinical phase in MS. The study used health administration records from four Canadian provinces (British Columbia, Saskatchewan, Manitoba, and Nova Scotia). Due to the nature of the Canadian health-care system, these provinces have computerized health-care records on >99% of residents, including hospital discharges, physician billing, prescription on records, and dates of all medical visits – all records can be linked by a unique health-care number assigned to individuals. Using these records, medical histories for 14,428 MS cases and 72,059 controls were included for this study. They compared health-care utilization in the same five-year period prior MS diagnosis between cases and temporally matched controls.

Interestingly, five years before a MS diagnosis, the number of hospital admissions for people who eventually developed MS was 26% higher than controls, and this increased to 78% higher a year before MS diagnosis. A similar pattern was observed for physician billing (5 years before diagnosis: 24% higher in people with MS than controls; 1 year before diagnosis: 88% higher in people with MS than controls). There was also a substantial increase in the number of prescribed drug classes in people with MS compared to controls (5 years before diagnosis: 23% higher; 1 year before diagnosis: 49%  higher). These results clearly demonstrate a pre-clinical stage for MS where subtle symptoms exist before clinically definitive symptoms (also known as a prodromal stage). With further research, we can explore these subtle symptoms and hopefully diagnose MS earlier and initiate therapeutics earlier, slowing the rate of progression of MS.

From: When do MS symptoms start? By Farren Briggs PhD, ScM; The Accelerated Care Project for Multiple Sclerosis

Interesting Results…

Gene That Boosts Resistance to Malaria linked to Susceptibility to MS and Lupus in Sardinia

Researchers from Italy found a strong association between the gene that instructs the molecule “BAFF” and susceptibility to MS and lupus in studies of nearly 6,000 people in Sardinia. The BAFF gene is crucial to activation of immune B cells and is also associated with resistance to malaria. Malaria was common in Sardinia until it was eradicated in 1950. The rates of MS and certain immune-mediated diseases are high in Sardinia. Further research is necessary to confirm whether this high rate is related to BAFF, and whether MS could be treated by a therapy that targets BAFF.

Read more about this study from the Genetic Literacy Project

Read the scientific summary of the paper in The New England Journal of Medicine

Read more about efforts to end MS forever


Novel Protein Identified Inside Cells During MS Inflammation May Help Explain Nerve Damage

Researchers from the University of Alberta in Canada report that levels of Rab32 – a protein that directs traffic between cell organs – are increased in sites of active inflammation in brain tissue obtained from people with MS and in mouse models of MS-like disease. This increase was linked to the destruction of nerve cells. If the results are confirmed, this knowledge could explain part of the neurodegenerative process that leads to progression of disability in MS and could be a target for development of effective MS treatments.

Read more on ReliaWire
Read the open access paper in Journal of Neuroinflammation
Read more about Research to stop MS in its tracks

Researchers Recruiting African Americans with MS Across the U.S. for Genetics Studies – Key to finding cause of MS and better treatments

Rationale: Genes are known to play a role in determining who is susceptible to developing multiple sclerosis, and may also influence the course of the disease. People living with MS can make a difference in studies searching for these genes by donating their DNA from blood samples. Identifying the exact location of MS genes could help determine who is at risk for developing the disease and may provide clues to its cause, prevention, and better treatment. Focusing on ethnic groups with lower susceptibility to MS (such as African-Americans) and higher susceptibility (such as individuals of Northern European descent), and searching for what is common and what is different in their genes may help pinpoint regions that contain MS genes. Large numbers of participants are needed to accelerate this research.

Details: It is not necessary to travel to San Francisco to participate in this study. Once an individual has completed the initial online intake form and has agreed to participate, they are emailed the links to two additional online forms and sent a kit via express mail. The kit includes a consent form, a health information privacy form, and a medical records release form. The kit also includes everything necessary for the blood draw, which can be taken to your local Quest Diagnostics Lab, where the blood can be drawn and then returned in a prepaid envelope to the UCSF MS Genetics Lab. There is no cost to the study participants.

Contact: To participate or request additional information, please complete our brief intake survey.

OR you may contact us directly:

Clinical Research Coordinator
UCSF Multiple Sclerosis Genetic Susceptibility Project
675 Nelson Rising Lane, Suite 235A, Box 3206
San Francisco, CA 94158
Toll Free Phone: 1-866-MS-Genes (1-866-674-3637)

MRI Study Yields Clues to the Development of Primary-Progressive MS


  • In a study of 453 people described as having radiologically isolated syndrome (specific areas of damage on MRI scans with no accompanying symptoms), about 12% eventually developed primary-progressive MS. This mirrors the frequency of primary-progressive MS seen in other studies of people with MS.
  • Those who developed primary-progressive MS were more likely to be men, were significantly older, and were more likely to have MS-like lesions in the spinal cord compared to those who went on to develop clinically isolated syndrome (CIS) or relapsing-remitting MS.
  • This study provides a rare glimpse of a very early stage of disease even before progression begins, and provides additional evidence of the value of research into radiologically isolated syndrome. Finding a way to identify and track primary-progressive MS earlier may help to improve access to care for those who have it.
  • The team (Dr. Orhun Kantarci, Mayo Clinic and Foundation, and national and international collaborators) published their findings in Annals of Neurology (published online, December 29, 2015).

Background: Diagnosing MS can be challenging, and it often happens in stages. The term “clinically isolated syndrome” (CIS) is used to describe a first episode of neurologic symptoms  that lasts at least 24 hours and is caused by inflammation and demyelination in one or more sites in the brain and spinal cord. Individuals who experience a CIS may or may not go on to develop definite MS. However, clinical trials of specific disease-modifying therapies have led to approvals for their use to treat CIS.

Some people have specific, “clinically silent” lesions (areas of inflamed or damaged tissue) on MRI, meaning that they are experiencing no symptoms and only have imaging findings. There has been growing research on this phenomenon, called “radiologically isolated syndrome (RIS),” which like CIS may or may not go on to develop into definite MS. There is debate as to whether people with RIS would benefit from early treatment with disease-modifying therapies.

Primary-progressive multiple sclerosis is a relatively rare form of MS, with about 10% of all people with MS receiving this diagnosis. It is characterized by steady worsening of neurologic functioning, without any distinct relapses (also called attacks or exacerbations) or periods of remission.

The Study:  This team examined data from 453 people with RIS collected from 22 investigators in five countries; a database of 210 people with MS in Olmsted County, Minnesota; and a cohort of 754 people with progressive MS.

Of the 453 people with RIS, 128 (28%) went on to develop a first neurological event consistent with CIS or relapsing MS. Of these, 15 (11.7%) developed primary-progressive MS. Those who developed primary-progressive MS were more commonly men, and older at diagnosis by approximately 10 years, than the 113 people who developed CIS/MS. The frequency of primary-progressive MS and age comparisons were similar to those identified in other groups of MS. Of the 15 who went on to develop primary-progressive MS, 12 had MRI scans of the spinal cord, and all 12 had lesions in the spinal cord, compared with 64% of those who developed CIS/MS.

The team (Dr. Orhun Kantarci, Mayo Clinic and Foundation, and national and international collaborators) published their findings in Annals of Neurology (published online, December 29, 2015).

Conclusions: This study provides a rare glimpse of a very early stage of disease even before progression begins, and provides additional evidence of the value of research into radiologically isolated syndrome. Finding a way to identify and track primary-progressive MS earlier may help to improve access to care for those who have it.

Read more about primary-progressive MS

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