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Consecutive Use of Gilenya and Lemtrada Causes Disease Activity in MS Patient, Case Report Suggests

Multiple sclerosis (MS) patients may experience severe disease exacerbation after switching from Novartis’ Gilenya (fingolimod) to Sanofi Genzyme’s Lemtrada (alemtuzumab), a case report suggests. This unexpected high disease activity raises questions about managing MS through the consecutive use of immunotherapies. The case report, “Unexpected high multiple…

Deregulated RNA Molecules May Contribute to RRMS, Study Finds

The levels of three small, regulatory RNA molecules — long non-coding RNAs — are deregulated in blood samples of patients with relapsing-remitting multiple sclerosis (RRMS), a study reports. The long non-coding RNAs are involved in the regulation of the natural immune response and DNA-damage response, supporting the theory that these…

Most MS Patients OK With Intravenous Treatment Conditions, Study Suggests

Most patients with multiple sclerosis (MS) are satisfied with the conditions of their intravenous therapy (administered directly into the bloodstream) and are very aware of the therapy’s safety, according to a small Macedonian study. Also, establishing a specialized infusion center would substantially increase intravenous treatment satisfaction and adherence. The study, “…

Healthy Diet May Lower Risk of Developing MS, Study Finds

People who eat a healthy diet that includes foods such as vegetables, fish, eggs, poultry, and legumes may have a reduced risk of multiple sclerosis (MS), a study suggests. The study, “A healthy dietary pattern associates with a lower risk of a first clinical diagnosis of central nervous system…

Lemtrada Can Lower Number of B-cells Infiltrating Nervous System and Forming Clumps, Animal Study Shows

Treating mice in a model of multiple sclerosis with Lemtrada (alemtuzumab) prevented the formation of B-cell aggregates in the animals’ central nervous system and disrupted already existing ones, researchers report. The treatment also reduced disease activity when administered at the peak of disease. The study, “Anti-CD52 antibody treatment depletes B…

Quanterix’s Simoa Assay May Make Neurofilament Light Chain Useful Blood Biomarker of MS and Its Likely Progression

Quanterix’s ultra-sensitive Simoa assay has the potential to open new uses for the brain biomarker known as neurofilament light chain, including the possibility to detect early evidence of neurological diseases like multiple sclerosis (MS), Parkinson’s, and Alzheimer’s, and ably evaluate efforts to treat and prevent them, the company…

Smoking Increases Relapse Rate in RRMS Patients on Tysabri, Study Suggests

Smoking increases the relapse rate in patients with relapsing-remitting multiple sclerosis being treated with Tysabri , an observational study suggests. Multiple sclerosis is a multifactorial disease associated with both genetic and environmental risk factors. Smoking, in particular, has been linked to numerous aspects of MS, including its development and progression. In a previous study, the research team looked at how smoking influences the relapse rate in RRMS patients being treated with interferon beta. From more than 800 patients, they found that smoking one pack per day (about 20 cigarettes) essentially interfered with the positive effect of the IFN-beta treatment and increased the relapse rate by 27%. The researchers then questioned whether the same was true for other treatments. Tysabri, developed by Biogen, is a monoclonal antibody that targets the alpha-4 integrin protein. By interfering with this molecule, the therapy prevents white blood cells from moving into the central nervous system, suppressing the immune reaction that contributes to MS symptoms. In the study, 355 Tysabri-treated RRMS patients from the Danish Multiple Sclerosis Centre were assessed. To gather information on smoking habits and body mass index, the patients filled out a 100-question survey. Data was collected between the start of the treatment and a two-year follow-up visit. Results showed that smoking one pack of cigarettes per day increases the relapse rate by 38% in RRMS patients on Tysabri. This increase in relapse rate takes into account both sex and age at the start of treatment, since age can affect the relapse rate. For example, an increase in age by one year raises the number of relapses by 2%. The researchers also looked at the relationship between smoking and the presence of two immune-related alleles: HLA-DRB1*15:01 and HLA-A*02:01. Previous studies showed that HLADRB1*15:01 is associated with an increased risk of developing MS, while HLA-A*02:01 is linked to a decreased risk. Although previous studies reported a link between smoking and these two alleles in MS patients, the current study did not find an association between smoking and carrying either of these alleles. Based on the results, the researchers concluded that smoking significantly increases the relapse rate in RRMS patients receiving Tysabri. According to the team, the results "add important information that hopefully will sharpen the focus on the overall harmful effects of smoking in MS patients."

Vitamin D3 Insufficiency Increases MS Susceptibility in a Gene and Sex-dependent Manner

Vitamin D3 insufficiency increases multiple sclerosis (MS) susceptibility in a gene and sex-dependent manner, a mouse study suggests. The study with that finding, “Sex-Specific Gene-by-Vitamin D Interactions Regulate Susceptibility to Central Nervous System Autoimmunity,” by researchers at the University of Vermont, was published in the journal Frontiers in…

Blood Levels of IgG3 Antibodies May Predict Faster Shift to MS in Clinically Isolated Syndrome Patients, Study Says

Higher-than-usual levels of specific antibodies in the blood of patients with clinically isolated syndrome (CIS) may predict a faster progression to multiple sclerosis (MS), an Australian study reports. The specific antibody is known as IgG3, an immunoglobulin known to promote inflammation. The study, “Higher Serum Immunoglobulin G3 Levels May Predict…