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41 active trials for Multiple Sclerosis - Relapsing Remitting

Cognition and MRI Markers in MS Patients With Aubagio® Treatment

Cognitive impairment is nowadays more and more recognized as an important feature of the multiple sclerosis (MS) disease which contributes largely to disability. Cognitive assessment using classical neuropsychological tests are poorly correlated with patient's complaints and daily functioning. Ecological evaluations, recent and innovative way to assess cognitive functions with the true impact of cognitive impairment in everyday daily life of patients. One goal of an ecological test could be to identify MS patients in whom cognitive impairment has a strong interaction with daily life. Different type of ecological evaluation have been recently proposed in MS, including assessment cognitive tasks in a virtual reality environment using the Urban DailyCog® software developed in our laboratory (Hamel et al, 2015). Virtual reality environment assessments are promising in detecting cognitive impairment while providing friendly assessments for patients and simulating daily activities. . Cognitive dysfunction is correlated with white matter diffuse injury in relapsing-remitting MS (RRMS) patients and brain atrophy However, the relationships between structural brain damage and brain connectivity with cognitive functioning assessed by ecological evaluation are also unknown. The use of new techniques for morphological and functional MRI can study the contribution of diffuse white matter (WM) alteration and diffuse gray matter (GM) alterations in cognitive impairment and on their evolution. The objectives are to evaluate the ecological assessment (Urban DailyCog® and actual reality) to detect cognitive impairment in everyday daily life of patients and their changes and to investigate structural WM and GM damages and the dynamic of functional connectivity for explaining and predicting cognitive disability during two years in RRMS patients treated by the same treatment Aubagio®.

Start: May 2019
Exploration of Brain Changes Due to a Targeted Ballet Program in Multiple Sclerosis

Multiple Sclerosis (MS) is an autoimmune disease of the central nervous system (CNS) affecting roughly 900,000 people in the United States that frequently results in impaired mobility. The majority of people with MS express that impaired mobility the most difficult aspect of living with the disease. Ataxia is one aspect of impaired mobility experienced by approximately 80% of persons with MS. Despite $9 billion in drug costs to patients with MS in the U.S., in 2012 alone, standard pharmacological treatment for MS is ineffective in restoring mobility and decreasing ataxia. The PI designed a targeted ballet program requiring motor learning of complex movements that mitigated ataxia and improved balance in patients with MS in a pilot study. The improvements obtained were approximately five times larger than those reported by other physical rehabilitation interventions. However, understanding these changes requires determining whether there are underlying changes in the brain after participation in the targeted ballet program. This project involves persons with mild-to-moderate MS that present ataxia in their movement. We will compare the brain connectivity of participants in the targeted ballet program before and after the 16-week, twice per week, hourly participation intervention. Brain images will be obtained with magnetic resonance imaging while each participant rests with the eyes open. As a secondary outcome, measures of movement quality, ataxia, and balance will be taken to better understand the effects of the targeted ballet program on motor function, wellness, and the brains of persons with mild to moderate MS. Test on movement will include a 10 meter walk with motion tracking, a balance test using a force plate, and clinical tests of ataxia, balance, and walking speed. We will also assess changes in wellness with standard questionnaires.

Start: August 2019
TOTEM RRMS : TestOsterone TreatmEnt on Neuroprotection and Myelin Repair in Relapsing Remitting Multiple Sclerosis

Centra nervous system (CNF) damage in multiple sclerosis (MS), are mainly attributed to myelin destruction, axonal abnormalities and subsequent degeneration, and are responsible for serious deficiencies. Current therapies are focused on the treatment of inflammation with several types of anti-inflammatory agents. However, there is an urgent need for innovative therapies promoting neuroregeneration and particularly myelin repair. It has been demonstrated that testosterone can act through neural androgen receptors to promote proliferation and differentiation of oligodendrocyte precursors into mature oligodendrocytes in a cuprizone-induced animal model of demyelination. The rare clinical trials on testosterone are mainly exploratory. Here, we sought to demonstrate an effect of testosterone supplementation in testosterone-deficient patients in a multicenter, randomized, parallel-group, double-blind, placebo-controlled phase 2 trial. The main objective will be to determine the neuroprotective and remyelinating effects of testosterone using tensor diffusion imaging techniques and thalamic atrophy analyzes. As secondary objectives, we would like to study the impact of testosterone supplementation on other conventional and unconventional MRI parameters and on clinical outcomes (cognition, fatigue, quality of life, impact on work / activity and anxiety / depression).

Start: October 2019
To Investigate the Effect of Aerobic Exercise on Neurophysiological Values and Functionality in Individuals With Multiple Sclerosis.

Multiple sclerosis (MS), a chronic inflammatory disease of the central nervous system, is characterized by myelin, oligodendrocytes and axon damage. Physical exercises can be beneficial to patients, reduce fatigue and improve their strength, endurance and quality of life. Exercise has the potential to improve and / or preserve functionality, aerobic condition, strength, fatigue, health-related quality of life, depression, and cognition in MS patients. It has been reported that aerobic exercise increases muscle strength and endurance in peak oxygen intake and decreases fatigue and improves activity level, balance and walking patterns. It is important to control the problems caused by ataxia in MS patients, to improve balance and postural reactions and to increase proximal muscle and trunk stabilization. For this purpose, movements are voluntarily and graded. Progress in exercises is achieved by making changes in the speed, width and complexity of movement. However, Frenkel Coordination exercises for extremity ataxia are usually included in the physiotherapy and rehabilitation program. Little is known about the role and function of the iris in the nervous system with the discovery of Irisin and its precursor protein FNDC5. Evidence that the plasma level of iris increases during physical exercise suggests that it may also have beneficial and neuroprotective effects in the brain. Increased physical exercise has been shown to be associated with FNDC5 expression and ultimately more secretion of the iris. The effect of elevated plasma iris levels after aerobic exercise on functionality in MS patients is unknown. Moon et al. Observed that cellular proliferation in mouse hippocampus cells was dose-dependent due to iris. In spraque dawley-type male rats, the presence of significant iris in the myelin sheath of the skeletal muscle shows that this tissue is an important source of iris. Based on these findings, it is thought that exercise-induced iris, which is an important cause of disability in MS, may have beneficial effects on the recovery of normal function in these patients. Whether iris affects nerve conduction velocity will be determined by electromyography analysis before and after aerobic exercise. In addition, the relationship between aerobic exercise and motor and sensory function and iris will be investigated and evaluated with functional tests.

Start: October 2019