View clinical trials related to Multiple Sclerosis.
Filter by:The goal is to assess the safety and effectiveness of home ocrelizumab infusion.
This study is a case-control observational study, involving persons with multiple sclerosis and healthy controls. The study contains 1 descriptive and 4 experimental sessions. In the descriptive session, participant's clinical motor and cognitive functions are collected. In the first experimental session, participant's beat perception and synchronisation abilities is examined within a finger tapping paradigm. In the following experimental sessions participants synchronsiation abilities is examined during walking paradigms, to music and metronomes, at different tempi and alignment strategies. In the latter three sessions, apart from outcome measures of synchronization the following will be collected as well: spatio-temporal gait parameters, perceived fatigue, perceived motivation and perceived speed of walking.
Walking on a split-belt treadmill (each of the two belts running at a different speed) imposes an asymmetrical gait, mimicking limping that has been observed in various pathologic conditions. This walking modality has been proposed as an experimental paradigm to investigate the flexibility of the neural control of gait and as a form of therapeutic exercise for hemi-paretic patients. However, the scarcity of dynamic investigations both for segmental aspects and for the entire body system, represented by the centre of mass, challenges the validity of the available findings on split gait. Compared with overground gait in hemiplegia, split gait entails an opposite spatial and dynamic asymmetry. The faster leg mimics the paretic limb temporally, but the unimpaired limb from the spatial and dynamic point of view. These differences suggest that a partial shift in perspective may help to clarify the potential of the split gait as a rehabilitation tool. The aim of the present study is to investigate the dynamic asymmetries of lower limbs in adults with unilateral motor impairments (e.g. hemiplegia post-stroke, Parkinson's disease, multiple sclerosis, unilateral amputation, surgical orthopedic interventions) during adaptation to gait on a split-belt treadmill. The sagittal power provided by the ankle and the total mechanical energy of the centre of mass will be thoroughly studied. The time course of phenomena both during gait when the belts are running at different speed and when the belts are set back to the same speed (i.e. the after-effect) will be investigated. A greater dynamic symmetry between the lower limbs is expected after split gait. The question whether this symmetry will occur when the pathological limb is on the faster or the lower belt will be disclosed. Some alterations of the motion of the centre of mass during split gait are also expected.
The investigators propose to use the novel SV2a-PET ligand, [F-18]SDM-8 to assess synaptic density in progressive MS (including primary progressive multiple sclerosis (PPMS) and secondary progressive multiple sclerosis (SPMS)) as compared to relapsing-remitting multiple sclerosis (RRMS) patients and healthy controls, given its improved imaging characteristics and potential for large scale applicability. The specific aims of the study are: Aim 1: To compare the cortical and subcortical grey matter synaptic density in progressive MS patients, patients with relapsing-remitting MS, and healthy subjects, using a novel [F-18] labeled synaptic density PET ligand, [F-18]SDM8, also known as [F-18]SynvesT-1. Aim 2: To compare the relationship of synaptic density PET and standard 3T MRI measures including global and regional brain atrophy and lesion load with clinical measures of physical disability, cognitive impairment, fatigue and depression in MS patients. Aim 3: To assess the relationship of synaptic density PET with serum neurofilament light chain (NfL) and with serum measurements of inflammatory markers, IL-1β, TNF-α, IL-6, MCP-1 (Monocyte Chemoattractant Protein-1) and MIF-1 (Macrophage Migration Inhibitory Factor-1).
To observe the safety and effectivity of a Recombinant Human B Lymphocyte Stimulator Receptor : Immunoglobulin G( IgG ) Fc Fusion Protein for injection (RC18) in patients with relapsing remitting multiple sclerosis, analyze the dose-response relationship and provide a dose basis for follow-up clinical trials.
The main purpose of this study is to investigate the safety and tolerability of intermittent Theta Burst (iTBS) repetitive transcranial magnetic stimulation (rTMS), its effectiveness in alleviating depressive symptoms as well as its effects on cognition. Although iTBS rTMS is approved for use, there have been no safety and tolerability evaluations of this form of rTMS in Multiple Sclerosis (MS).
Activation is the amount of voluntary recruitment of a muscle during voluntary contraction. Full activation implies the recruitment of all muscle fibres at their tetanic frequency. In healthy subjects, and even in sports performances, full activation may be rarely achieved despite a subjectively maximal effort. Highly decreased activation has been observed in patients affected by various orthopaedic and neurological disorders. In these subjects, paresis may be caused or aggravated by primitive impairments of the central nervous system and/or, by stimuli arising from peripheral damaged tissues that inhibit the corticospinal or the intraspinal recruitment of motoneurones ("arthrogenous muscle weakness"). There are numerous investigations in the literature on activation measured during isometric contractions, while they are substantially missing as far as isokinetic concentric contractions are concerned. There are reasons to suppose that, contrary to what has been demonstrated for healthy subjects, in patients with various motor impairments the activation is diminished the more, the higher is the joint rotation speed. The present study aims to investigate the amount of activation of the quadriceps femoris during subjectively maximal isometric contractions at 40° knee flexion (0°=complete extension) and isokinetic concentric contractions at an angular velocity of 100°/s in patients with various orthopaedic and neurologic conditions. Activation will be measured on an isokinetic dynamometer, through the "interpolated twitch technique". This consists of stimulating a representative sample of the muscle belly through an electric shock. If the shock does not generate an extra force during contraction, all muscle fibres belonging to the sample reached by the electric shock can be claimed to be recruited at their tetanic frequency. Otherwise, following the stimulus, a twitch can be observed revealing submaximal voluntary recruitment of the muscle.
Transcranial magnetic stimulation (TMS) studies reported consistent and substantial impairments in the central nervous system (CNS) in multiple sclerosis (MS). Studies of peripheral nervous system (PNS) function comprising electromyoneurography (EMNG) reported impairments of the PNS in MS that were less pronounced and inconsistent. Neurophysiological studies are generally small and cross-sectional and with the poor grouping of MS patients according to MS type. The objective of the study is to investigate clinical, neurophysiological, and immunological markers in relapsing-remitting MS patients, and in patients with relapsing-remitting MS treated with immunomodulation. The results of the study may contribute to a better understanding of the pathophysiology of multiple sclerosis and can provide guidance in the diagnosis and treatment of patients with relapsing-remitting MS.
This study will evaluate the influence of sleep apnea on clinical and radiological features of MS. Sleep apnea is associated with hypoxemia during sleep, which is likely detrimental to MS. Clinical data (MRI, lab results, medical history, labs, and sleep studies) of MS patients will be collected and analyzed. This will be done to study correlations between MRI, clinical data, lab studies and sleep studies. There is specific interest in the type of sleep apnea associated with MS, and whether MRI or clinical metrics of MS severity correlate with presence or absence of sleep apnea.
Obesity is one possible contributor to severity of multiple sclerosis and progression of the disease. We already know that obesity is a risk determinant for acquiring MS, yet the impact of obesity on pediatric MS disease expression and course is unknown. This study will evaluate the relationship between obesity, obesity-derived inflammatory mediators, and imaging metrics of MS severity in children. Understanding how childhood obesity contributes to MS severity/progression may yield fundamental insights into disease pathobiology - which may thereby lead to effective strategies for halting its progression in its earliest stages.