Active clinical trials for "Polyradiculoneuropathy, Chronic Inflammatory Demyelinating"

Resistance and aerobic exercise has been shown to be effective for maintenance of muscle strength in patients with neuromuscular diseases. Exercise in CIDP and MMN is sparsely described. The aim of the study is to evaluate changes in muscle strength during high intensive resistance training and changes in maximal oxygen consumption (VO2-max) during high intensive aerobic training in patients with CIDP or MMN in maintenance therapy with subcutaneous immunoglobulin. The hypotheses are that muscle strength and VO2-max are significantly increased during the training sessions.

Chronic inflammatory demyelinating polyneuropathy (CIDP) is a chronic demyelinating polyneuropathy of autoimmune origin with a progressive or relapsing course. Diagnosis is based on clinical presentation and electrophysiological findings in accordance with the EFNS/PNS consensus guidelines. IVIg is the first line treatment witch has been shown to be effective in several placebo-controlled trials. Once IVIg therapy produces a response and is well tolerated, some patients are able to continue their treatment in the home setting. The HOME LINK system offers an integrated, global solution based on telemonitoring technology providing continuous, remote monitoring of Privigen® infusions administered at home.

Chronic inflammatory demyelinating polyneuropathy (CIDP) is a treatable form of peripheral neuropathy with suspected autoimmune cause. The current first-line treatment is IVIG (immune globulin), which is infused in a set regimen that requires 4-5 hours in a hospital day unit, taking up resources such as nursing time and hospital space. Chronic treatment is required in most cases.

The purpose of this study is to determine whether intravenous immunoglobulin (IVIg) is an effective intervention for patients with diabetes, peripheral neuropathy, and demyelination on nerve conduction studies. All patients will receive both IVIg and placebo for 3 months each, with a 3 month washout period in between.

Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an immune-mediated disorder of peripheral nerves. Intravenous immunoglobulins (IVIg) are a first line therapy for CIDP. The investigators used a transcriptomic approach to compare the gene expression profiles in the peripheral blood of patients having a CIDP or autoimmune diseases, before and after IVIg treatment, in order to identify their mechanism of action in this condition, to lead to a better understanding of CIDP pathophysiology, and potentially determine factors associated with the response to the treatment.

Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP) is an acquired neuropathy characterized by an inflammatory multifocal segmental demyelination. Due to the clinical heterogeneity of this condition and the lack of specific marker that can reliably identify all patients, the diagnosis of CIDP remains difficult. Similarly, there are no clear factors predicting the evolution or the prognosis of the disease. Current treatments are the intravenous immunoglobulin (IVIg), corticoids and plasma exchange; IVIg therapy being the most commonly used. Responses of the patients to the treatments are variable. Thus, it is necessary to identify predictive markers of the therapeutic response of CIDP patients treated by IVIg. Several potential biomarkers have been proposed recently, but none of them has yet been validated as a predictive criterion for therapeutic response. It is therefore necessary to continue to investigate several biological parameters to identify a reliable biological marker. In electromyography, the Motor Unit Number Index (MUNIX) technique allows measuring the axonal loss by a precise count of functional motor units. This method, more sensitive than the measure of the Compound Muscle Action Potential (CMAP), is rarely used in CIDP. MUNIX might be a good tool to better characterize the patients and to follow the course of CIDP. It also might be a new sensitive and reliable marker predictive of the therapeutic response. Magnetic resonance Imaging (MRI) is increasingly used for the assessment of neuromuscular diseases. A recent study on CIDP patients reported a significant decrease of the muscle Magnetisation Transfer Ratio (MTR) compared to healthy subjects, correlated to clinical parameters. The use of advances MRI techniques could allow characterizing the structure and composition of muscle and nerve tissues of CIDP patients. It could also be a mean for identifying potential new markers, largely unexplored until now, that might be sensitive to disease course and/or IVIg response. The objective of this study is to identify predictive markers of the treatment response of CIDP patients receiving IVIg. This is a prospective observational exploratory study of a cohort of 30 CIDP patients treated with IVIg and followed-up during one year.

Chronic inflammatory demyelinating polyradiculoneuropathy is a diffuse multifocal autoimmune disorder of the peripheral neuron, affecting 1 to 9 in 100,000 people. Its course is difficult to predict, and may be characterized by continuous progression, multiple relapses, or recovery after a few months. treatment. The predominantly motor form with 4 limbs represents the typical form, but the disease can take on other clinical forms (pure sensory impairment, ataxia, etc.). In addition to induction therapy, patients most often require long-term maintenance therapy. First-line therapies, with the same efficacy according to a 2013 Cochrane study, are glucocorticoid therapy, plasma exchanges and intravenous immunoglobulin injections. Glucocorticoids have a grade C recommendation level while a grade A has been assigned to intravenous immunoglobulins and plasma exchange. However, the latter have less tolerance and have a rebound effect which limits their long-term interest. Intravenous immunoglobulins are therefore the preferred treatment today. The effect of intravenous immunoglobulins, delivered as a bolus over a few days, lasts two to six weeks, with the number of people being cured of three to improve a person. A more recent study has also shown their advantage in reducing the relapse rate at 6 months. However, the response to intravenous immunoglobulins fluctuates in different patients and, for any given patient, changes over the course of the disease. The 2010 recommendations therefore recommend an adaptation of the doses and duration of intercourse (0.4 to 1.2 g / kg every 2 to 6 weeks) according to individual monitoring of the response to treatment. In order to embrace the diversity of symptoms of chronic inflammatory demyelinating polyradiculoneuropathy, several scores and scales are usually combined to ensure this follow-up in a cohort. Three clinical data are currently favored: the Inflammatory Rasch-built Overall Disability Scale (I-RODS), the INCAT Overall Neuropathy Limitations Scale (ONLS), the score of the Medical Research Council (MRC). However, none of them assess walking objectively. However, patients with chronic inflammatory demyelinating polyradiculoneuropathy sometimes report significant walking disturbances, which may result from both sensory disturbances or motor disturbances present in varying degrees depending on the patient. The alterations concerned, according to the studies, the walking speed, the temporal pattern of the step, with an impairment of the durations of the different phases (support and oscillation) or the angle and the angular speed of roll at the level of the trunk. Alterations in speed and phase duration of the step improve during treatment with intravenous immunoglobulin cures, with greater sensitivity compared to the ONLS and MRC scales. The power of the propulsive moment at the ankle during the last moments of the stance phase - the push-off - is another promising gait parameter that has made it possible to distinguish diabetic patients with polyneuropathy from those without diabetes. polyneuropathy and the intensity of the deficit is linked to the severity of the attack. Gait speed, as a reflection of the subject's gait performance, and the quality of gait including the timing of gait, trunk rotation movements and push-off, therefore seem to be potential response markers. for monitoring patients treated with intravenous immunoglobulins. InertiaLocoGraphy, quantification of gait by inertial measurement sensors, has proven its value in the evaluation of various pathologies in neurological practice, including chronic inflammatory demyelinating polyradiculoneuropathy. It gives access to the walking speed as well as to various walking quality criteria (vigor of the step, rhythmicity, regularity, symmetry, stability, fluidity, synchronization) including the times of the different walking phases and the rotational movements of the trunk, and a push-off substitute. InertiaLocoGraphie, non-invasive, easy and quick to set up, reflecting the patient's function, therefore potentially provides biomarkers of choice for monitoring the response to intravenous immunoglobulin cures in patients with chronic inflammatory polyradiculoneuropathy demyelinating. Its association with the traditional monitoring tools such as the ONLS score, the I-ROS, and the CRM therefore appears to be of key interest for this monitoring.

Chronic inflammatory demyelinating polyradiculoneuropathy (PIDC) is an acquired dysimmune polyneuropathy whose prevalence is estimated to be between 1 to 4 per 100,000 depending on the study, with an incidence of less than 1 per 100,000 per year. The clinical presentation of PIDC is heterogeneous, characterized by a symmetrical lesion predominating generally on large fibers, the most myelinated, responsible for ataxia and a motor deficit in the foreground. In the typical form, patients describe a proximal and distal motor or sensory deficit associated with isflexia that signifies a peripheral neurogenic syndrome. The physiopathological hypothesis is that of an inflammation responsible for demyelinating nerve fibers, which results in electroneuromyogram (ENMG) by conduction abnormalities and histologically when a neuromuscular biopsy is performed by segmental demyelination. Given the heterogeneity of the clinical presentation, electrical diagnostic criteria are proposed by the European Federation of Neurological Society in order to classify IPDCs into three categories: certain, probable and possible. In the absence of sufficient criteria to make the diagnosis of IPDC, it is also possible to use criteria of support, using a paraclinical report including the presence of an increase in protein (hyperproteinorachie) without cells for cerebrospinal fluid analysis, visualization of radicular inflammation on imaging (MRI of lumbar and / or brachial plexus), proximal peripheral involvement with somatosensory evoked potentials. Therapeutically, a joint management between rehabilitation and the introduction of a background treatment allows the clinical improvement of certain patients. To date, the treatments proposed in first intention are corticosteroids, intravenous immunoglobulins (IVIg) and plasma exchanges. In fact, the efficacy of intravenous immunoglobulins has been widely shown by controlled and randomized therapeutic trials. Efficacy studies of IVIg in the literature are most often based on an assessment of clinical response after 24 weeks, but in clinical practice the response to treatment and continuation of treatment is often evaluated after 3 courses of treatment with the help of a clinical evaluation and the realization of an electroneuromyogram. These are administered in day hospitalization or traditional hospitalization, every four weeks, to patients whose diagnosis of PIDC has been established by electroneuromyogram according to the EFNS criteria. Clinical prognostic factors for good response to IVIG therapy have been described in previous studies, including subacute disease, symmetrical involvement, and absence of amyotrophy. In order to optimize the management of IPDCs, it is important to identify patients who respond to IVIg. Thus, the objective of our study is to look at the electroneuromyogram, the presence of electrical predictors of good response to treatment with IVIg.

This is a prospective observational study of 30 adult CIDP patients who receive home IVIg infusion services from AxelaCare Health Solutions, LLC. The decision to treat with IVIg will be entirely at the discretion of the patient's treating physician.

This project aims to develop high field MR techniques to detect nerve lesions in diabetic patients. The MRI findings will be compared to results from conventional evaluations and nerve conduction studies to determine the validity as part of a clinical practice.