
Effect of Need to Void on Gait Speed in Multiple Sclerosis
Multiple SclerosisLower Urinary Tract Symptoms1 moreMultiple sclerosis causes demyelinating lesions, which can induce multiple symptoms. If motor disorders are the most visible disability, urinary disorders are frequent, with prevalence from 32 to 86%. The first ones are due to pyramidal, cerebellar or proprioceptive lesions. The seconds are due to specific lesion in inhibitor/activator encephalic centers, or interruption on medullary conduction. It seems to be evident that walk and urinary disorders are link, because of similar anatomic ways and control process. Effect of bladder filling is well known on motoneuronal excitability. The effect of bladder filling on walk stay unknown, while medullary integration of these two functions is very close, in medullary cone. Primary aim is to assess the effect of need to void on walk speed in multiple sclerosis with lower urinary tract symptoms. Secondary aim is to identify clinical or urodynamic factor link with major walk impairment when patients need to void. Patient with multiple sclerosis over 18 years old, consulting for lower urinary tract symptoms in a tertiary center are included. History and treatment, high, weigh, symptoms severity by USP score, cognitive impairment by MMSE score and last urodynamic data are recorded. Patient are asked to drink water until they feel a strong need to void, for which they would go to urinate at home. Walk tests are realized in a specific place, with calm and no passage. A chair is placed at each end of the path. Toilets are just next to the hall where they realize the tests. A 10 Meters Walk Test is done during this condition, 3 times (only the intermediate 6 meters are recorded). They can take 30 seconds of rest between each try if necessary. One Timed up and go is done. Patient can use their habitual walking device. Speed walk asking is comfortable for the two test. Next, patient can urinate. 3 post void residual volume with portable echography are done, and the higher is recorded. Patient achieve the same walk tests after urinate, in the same order. They must use the same walking device. Primary outcome is mean gait recorded for 10 meters walk test. Secondary outcome is time for timed up and go test. Individual variability between the 3 10MWT in the two conditions will be study. Influence of age, EDSS, severity of symptoms, MMSE, detrusor overactivity on speed impairment will be study in secondary analysis.

Study of Biomarkers of the Response to Biotine
Multiple SclerosisBiotineBiotine is proposed by neurologists to patients with a progressive form of Multiple sclerosis (MS) in the context of a nominative temporary authorization for use (TAU) as a disease-modifying treatment for their MS. A recent study showed that with this treatment, more patients experienced an improvement after one year in comparison with patients given a placebo. The objective of this study is to identify blood biomarkers to determine good responders as early as possible. In addition, the blood parameters studied will make it possible to better understand the mechanisms of action, that have a beneficial effect on multiple sclerosis. The management of patients will not be modified: same number of consultations (at the prescription, at 3 months, at 12 months), same clinical examination, and the same number of blood samples (at the prescription, at 3 months, and at 12 months).

Analysis of the Distribution of Regulatory B Cells in Blood of Multiple Sclerosis Patients
Multiple SclerosisSystemic SclerosisNew therapeutic approaches of MS are emerging, targeting different actors of the immune system. Some of them target a specific population of white blood cells: B lymphocytes composed of different subpopulations. The subsets of B cells express different functional properties that control the immune response, but these regulation mechanisms have yet to be clearly described. Some subpopulations could amplify inflammation through IL-6 production for example, whereas some ones contribute to its regulation through the production of IL-10. Using samples collected in a large cohort of individuals with risk of MS and treatment-naive patients in the early onset of the disease, the investigators aim to develop a 2 year follow-up study of the different blood B cells subset distribution and their functional properties in terms of pro- and anti-inflammatory cytokine production in MS. This approach can identify new biomarkers for monitoring of MS patients and lead to better define the indication use of depletive B cell drugs and not to counteract the regulatory action of these cells.

Observational Study to Characterize Real-world Clinical Outcomes With Relapsing-remitting Multiple...
Multiple SclerosisThe primary objective of the study is to evaluate the real-world clinical effectiveness, as measured by the proportion of participants relapsed at 12 months, in participants treated with dimethyl fumarate (DMF). Secondary objectives of the study are: To evaluate the real-world clinical effectiveness, as measured by the proportion of participants relapsed at 12 months, in participants treated with DMF, glatiramer acetate (GA), teriflunomide, or fingolimod both in the overall participant cohort and in a subset of participants who were naïve to disease-modifying therapy (DMT) and were diagnosed with multiple sclerosis (MS) within 3 years of starting the index therapy; To compare relapse activity, defined as annualized relapse rate (ARR), among participants treated with DMF, GA, teriflunomide, or fingolimod; To compare MS-related hospitalizations among participants treated with DMF, GA, teriflunomide, or fingolimod; To compare intravenous corticosteroid use among participants treated with DMF, GA, teriflunomide, or fingolimod.

Fall Prevention Program for Non-ambulatory Wheeled Mobility Device Users Living With MS
Multiple SclerosisA research study to examine the effectiveness of a fall management program to prevent falls and develop fall recovery strategies for wheeled mobility device users living with Multiple Sclerosis.

Kinematic Assessment In Multiple Sclerosis
Multiple SclerosisMultiple sclerosis (MS) affects more than a 120,000 people in the United Kingdom and is the commonest neurological condition in young adults. MS causes a number of symptoms including weakness, altered sensation, pain and memory difficulties. There are different forms of MS, including relapsing-remitting MS (RRMS), primary progressive MS (PPMS) and secondary progressive MS (SPMS). Currently there are several effective treatments for RRMS, but no NICE approved treatment for SPMS. Patients with PPMS and SPMS experience a gradual progression in disability that affects individual patients differently. A number of clinical scores are used to quantify the disability in individual patients and some of these scores focus on the patients' lower limb function. In the progressive forms of MS, preservation of upper limb function becomes a more important concern for patients to maintain their quality of life. With the advent of new treatment trials for PPMS and SPMS, it is important that clinicians and researchers are able to use accurate and quantifiable measures of upper limb function to evaluate any changes with time or response to treatment. The use of motion tracking software provides a unique opportunity to accurately track movements in real time and space and give a tailored assessment of an individual's function. The overall aim of this study is to use established kinematic assessment tools to explore the extent and progression of upper limb dysfunction in patients with progressive MS. This aim will be achieved via the following objectives: Recruit a sample of participants with PPMS and SPMS from the local MS population Quantify the physical impairment in these participants using existing clinical scores as well the kinematic assessment tools that have been developed Follow-up the participants for a period of 12 months to identify and quantify any progression in their upper limb dysfunction Identify any factors that may influence upper limb dysfunction in this group Develop and evaluate the role of further kinematic techniques in this group of participants

To Study the Pathophysiological Features of Multiple Sclerosis
Multiple SclerosisNeurofilament Light Chain1 moreMultiple sclerosis (MS) is the most common chronic inflammatory disease of the central nervous system1, whose demyelination is the pathological hallmark. MS is characterized by neuroinflammation, demyelination, axonal damage, and neurodegeneration2. The demyelination state in brain and the clinical course are difficult to predict in the early stage of disease. Recently, several neuroimaging and fluid biomarkers had been explored in MS. Using brain amyloid positron emission tomography (PET) in active MS had showed that both the damage sites and normal appearance white matter had a lower intensity than non-active MS. The result suggests a predictive role that the intensity from amyloid PET could reflect the disease activity and link to early myelin damage. The levels of tau protein in cerebrospinal fluid (CSF) had also been showed a negative correlation with brain atrophy, which is a prognostic marker for MS. In fluid biomarkers, both neurofilament light chain (NfL) and glial fibrillary acidic protein (GFAP) had been used in MS and reported correlations with disease severity, the extent of neuroinflammation and progression. In current study, investigator will enroll 38 participants with MS and evaluate their clinical severity; measure the WM lesion and disease activity by magnetic resonance imaging (MRI); myelination state and amyloid deposition by amyloid PET scan; tau deposition by state of-art tau PET scan. Investigator also measure the serum levels of NfL and GFAP as the index of axonal injury and disease activity. The relationship between disease severity, brain myelination, tau deposition and serum levels of NfL will be discuss.

Dimethyl Fumarate (DMF, Tecfidera®) Persistence in RR-MS Patients Included in the French Patient...
Multiple SclerosisRelapsing-RemittingThe primary objective is to compare oral dimethyl fumarate (DMF) persistence at six months in relapsing-remitting multiple sclerosis (RR-MS) participants initiating DMF with and without OroSEP patient support program (PSP), respectively. The secondary objectives are: to compare oral DMF persistence at one month and three months in RR-MS participants initiating DMF with and without OroSEP PSP, respectively; To compare oral DMF adherence at six months in RR-MS participants initiating DMF with and without OroSEP PSP; To compare at three months and six months the reason of oral DMF discontinuation, in the two groups; To describe the percentage of participants with treatment-related adverse events globally and by class of adverse events, in the two groups of participants; To assess the evolution of participants' anxiety globally and to compare it at inclusion and at six months in participants with and without OroSEP PSP, respectively; To describe participants' satisfaction regarding oral DMF initiation and follow-up globally at six months and to compare it in patients with and without OroSEP PSP, respectively; For OroSEP PSP group: To assess participants' satisfaction regarding their participation in OroSEP PSP at six months; To assess neurologists' satisfaction regarding their participation in OroSEP PSP, after the last participant last visit of center.

Muscle Fatigue in Patients With Multiple Sclerosis
Multiple SclerosisIt is stated that 85% of patients with Multiple Sclerosis (MS) complain of gait disorders and 35-90% of them have fatigue. Many factors play a role in the fatigue mechanism in MS patients. Fatigue can increase the symptoms that already exist in MS patients. It is thought that fatigue caused a decrease in muscle strength, making walking worse. There are not enough studies investigating whether fatigue affects gait parameters in MS patients. The aim of this study is to examine the effects of muscle fatigue on muscle strength, joint position sensation, and gait in MS patients.

Investigation of Fatigue, Physical Activity, Sleep Quality and Anxiety Levels
Multiple SclerosisCovid-19Hundreds of thousands of confirmed cases have been reported worldwide, just 3 months after the first patients were identified in Wuhan, China. Just like other members of the community, MS patients are uncomfortable with the emotional distress and health anxiety caused by the COVID-19 outbreak. Most MS patients receive immunosuppressive or immunomodulatory therapies. Patients taking immunosuppressive agents are theoretically at increased risk of being affected by viral pandemics, and a higher health concern is expected in this group of patients. Moreover, MS patients lose social support. Patients with increased duration of stay can no longer access physical and cognitive rehabilitation therapies. We also know that increased anxiety and sleep disorders can cause MS patients to have an attack. When literature is examined, it is known that MS patients' physical activity levels decrease, fatigue, sleep quality and anxiety levels increase, so their quality of life and participation in daily life activities decrease. MS patients lose social support during the COVID-19 outbreak. For all these reasons, we think that the fatigue, physical activity level, anxiety level and sleep disturbances affected before the COVID-19 outbreak will be further affected for these reasons.