Active clinical trials for "Multiple Sclerosis, Relapsing-Remitting"

Multiple Sclerosis is the first cause of neurological handicap in France. The importance of cognitive disabilities, their evaluation and their impact on patients' life have only been comprehended recently. Immunosuppressants represent new treatments in Multiple Sclerosis (MS) but imply a lot of constraints. This study will evaluate the impact of these treatments on cognitive disabilities, tiredness state, emotion and quality of life in general, on a lengthened period.

The study is planned to evaluate the cognitive functions in subjects with RRMS treated with interferon beta-1a, and its relationship to the fatigue and neurological dysfunction status.

The present study aims to assess the adherence to therapy with interferon beta-1a (Rebif®) and at investigating potential factors that are involved in its outcome, in a representative sample of patients with relapsing remitting multiple sclerosis (RRMS), under real life conditions.

To establish a pharmacokinetic (PK) profile of BG00012, as measured by its primary metabolite, monomethyl fumarate (MMF), during a 24-hour dosing period in subjects with relapsing-remitting multiple sclerosis (RRMS), with a variety of baseline demographic characteristics.

Multiple sclerosis (MS) is a chronic immune central nervous system (CNS) disease of unknown cause. Recent studies suggest that gut microbiota could be a trigger for the neuro-inflammation in MS and abnormal gut microbiota composition has been reported in MS patients. These data provided scientific rationale for microbiota-directed intervention, like stool transplant, for the treatment of MS.

Multiple sclerosis (MS) is an autoimmune disease, leading to inflammation and degeneration of neurons in the entire central nervous system (CNS). Not only does MS attack CNS white matter, the wiring of the brain, but it also affects so called grey matter, involved in communication between brain cells. Some studies have shown that grey matter damage and lesions to the outermost layer of the brain, the cortex, might serve as a better diagnostic and prognostic tool for MS patients. The issue is that cortical lesions only to a limited extent can be visualized by conventional magnetic resonance imaging (MRI) at 3 tesla. The new generation of ultra-high field MR scanners with a field strength of 7 tesla, has a higher sensitivity towards detecting these cortical lesions. We therefore wish to use the improved sensitivity of ultra-high field MRI to improve detection of cortical lesions, and to elucidate the detrimental effects of single lesions to the cortex, thereby improving both diagnosis and prognosis of the disease. By implementing newly developed ultra-high-resolution MR-sequences the amount and extent of cortical lesions to the area of the brain responsible of the sensory and motor function of the hand (sensorimotor hand area - SM1-HAND) will be investigated in patients with relapsing remitting and secondary progressive MS. We will also assess how these lesions affect manual dexterity and sensory function and how cortical lesions affect communication within brain areas. It is hypothesized that the amount and size of cortical lesions is highly involved in brain communication and manual function, a major problem in MS, and that this project will shed new light on how the disease damages this important brain area.

Natalizumab (NTZ) use in Multiple Sclerosis (MS) in highly active patients has been largely established during the last Rationale 10 years in both clinical trials and real-world practice. Along with its efficacy, NTZ use has been limited by potential risk of progressive multifocal leukoencephalopathy (PML). Thus, several studies have tried to assess how to minimize this risk. One suggested approach is to move from the standard interval dose (SID) of 4 weeks to an extended interval dose (EID) of 5 weeks or longer. Extending the dosing interval of NTZ has been practiced by some physicians with the intention of improving the benefit/risk of the treatment by reducing the exposure-dependent risk of progressive multifocal leukoencephalopathy (PML) while maintaining efficacy. We propose to retrospectively analyze data from clinical records coming from RRMS patients treated in France at 5 different centers; Caen, Nice, Bobigny and Toulouse hospitals as well as Percy Military Hospital, to evaluate the effectiveness of natalizumab EID in subjects who have previously been treated with natalizumab SID for 12 months, in relation to continued SID treatment. In the clinical practice of these centers, patients are shifted after minimum 12 months under SID to an EID of 6 weeks regardless antibody JC serum status. Clinical, magnetic resonance imaging (MRI) and serum anti-JCV antibody status data are collected when available. The objective of this study is to assess the efficacy in term of ARR and safety.

The primary objective of this study is to assess the efficacy of Ocrelizumab (OCR) in Relapsing Multiple Sclerosis patients who have been previously treated with natalizumab (NTZ) by evaluating relapse rate, progression on MRI and disability progression.

While the last several years have seen great strides in the treatment of relapsing forms of MS, progressive MS, responsible for the majority of MS-related disability, lags far behind. Despite much research, the lack of understanding related to what causes patients' relentless decline in function results in an inability to develop targeted treatment strategies suitable for clinical trials. This grant has two main goals. The first goal is to extend the investigators preliminary study on rat neurons treated with the CSF of MS patients to a larger number of Progressive patients in order to validate the initial findings and extend the study to include analysis of human neurons. The initiating PI (Dr. Casaccia) and the Partnering PI and Clinical Neurologist (Dr. Katz Sand) have recently identified components that are present in the CSF of progressive patients that impair the ability of rat neurons to produce energy. The partnering PI, Dr. Quinzii (Columbia University) together with collaborator Dr. Fossati (NY Stem Cells Foundation), have characterized human neurons generated from stem cells derived from skin biopsies of progressive patients and detected the presence of energetic deficits. The experimental plan will build on these results and test hypotheses of disease progression. The overall goal is to improve understanding on how to stop neurons from degenerating and stop clinical progression. The second goal is to ask whether it is possible to define a progressive disease course on the basis of combined biochemical, functional and imaging measurements. The initiating PI will be responsible for the biochemical assessment of CSF and serum samples and, together with partnering PI Quinzii, will also provide functional bioassays measurements of mitochondrial bioenergetics impairment in patients. These data will be combined with clinical assessment and MRI evaluations conducted by the partnering PI Katz Sand and collaborator Inglese. A two year clinical and imaging follow up from the initial recruitment will allow to define whether the combined measurements can be used by clinical neurologists to define the disease course and better identify therapeutic options for patients. The expectation is that the completion of the stated aims of research will allow an advancement of the current knowledge of the progressive form of MS and lead to potential new therapeutic targets.

The purpose of this study is to compare biomarker levels in Multiple Sclerosis (MS) patients before and after beginning Natalizumab.