View clinical trials related to Autoimmune Encephalitis.
Filter by:Autoimmune encephalitis and paraneoplastic neurological syndromes are rare diseases caused by an abnormal immune response toward the nervous system. This can lead to life-threatening symptoms, but is in many cases treatable if a swift and correct diagnosis is made. Antibodies targeting neuronal proteins (i.e. "neuronal antibodies") can be detected in serum or cerebrospinal fluid (CSF) in about half of the patients suffering from these conditions. Although an important part of the diagnostical process of these conditions, diagnosis cannot be made only based on a positive antibody test, but the clinical findings have to be compatible as well. As these conditions are so rare, clinicians might struggle to interpret antibody test results. In this study the investigators aim to estimate the incidence rate of autoimmune encephalitides and paraneoplastic neurological syndromes in the Uppsala-Örebro health care region in Sweden between the years 2015 and 2019. Medical records from patients belonging to the Uppsala-Örebro health care region (a region in the middle of Sweden with a population of approximately 2.1 million), that tested positive for any neuronal antibody in serum or CSF will be studied to obtain clinical, laboratory and radiological data. This data will be used to ascertain if diagnostic criteria are fulfilled as well as to describe clinical characteristics and identifying possible comorbidities.
Antibody-mediated inflammatory diseases of the nervous system (also known as autoimmune diseases of the nervous system) are autoimmune diseases in which autoimmune cells and immune molecules attack the nervous system as the main pathogenic mechanism. In the immune response, pathogenic antibodies acting on autoantigens of the nervous system are collectively referred to as autoantibodies of the nervous system, and antibody-mediated inflammatory diseases of the nervous system can occur in the central nervous system, peripheral nervous system, and neuromuscular junctions, and muscles. In this study, we will recruit eight kinds of autoimmune diseases of nervous system including Neuromyelitis Optica Spectrum Disorder (NMOSD), Myasthenia Gravis (MG), Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP), idiopathic inflammatory myopathyand (IIM), multiple sclerosis (MS), autoimmune encephalitis (AE), Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (MOGAD) and POEMS Syndrome. B-cell maturation antigen (BCMA) is expressed on the surface of plasma cells, thus making it an ideal target for targeted therapies. Chimeric antigen receptor (CAR) T cells against BCMA offers another potential therapeutic option to eliminate plasma cells in patients with neurological autoimmune diseases driven by abnormal antibody who still suffer recurrent attacks from conventional treatments. In the current study, the safety and efficacy of a novel CAR-T cell therapy using CT103A cells, are evaluated in patients with relapsed/refractory antibody-mediated idiopathic inflammatory diseases.
Determine the difference in the modified Rankin score at 16 weeks in participants with anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis treated with "first-line" immunomodulatory therapies provided as standard-of-care, and either inebilizumab (investigational agent) or placebo.
Herpes Simplex Virus encephalitis is the most common infectious encephalitis, with an estimated annual incidence of 1 / 250,000 to 1 / 500,000 in industrialized countries. Despite a widely used antiviral treatment, the prognosis remains poor with a mortality of 5 to 20% and a considerable morbidity rate. One of the contributing factors of bad prognosis is the development of encephalitis mediated by autoantibodies, most often directed against NMDA receptors, in the weeks following viral encephalitis. The description of this pathology is recent, the pathophysiology of this process remains poorly understood, and the management of these patients is not yet codified.
The purpose of this study is to evaluate the safety and efficacy of IGIV 10% in patients with autoimmune encephalitis
Autoimmune encephalitis (AE) are characterized by subacute onset of memory deficits, altered mental status or psychiatric symptoms, frequently associated with seizures, inflammatory cerebrospinal fluid and in cases with prominent limbic involvement, typical magnetic resonance imaging. Several autoantibodies (Ab) may be detected in AE, although its detection is not mandatory to establish a diagnosis. These Ab mainly recognize different synaptic and cell-surface proteins in the central nervous system, and are thought to be pathogenic as they alter the normal location or function of its antigens. The primary trigger of the immune response is unknown for most of AE. In addition to acquired susceptibility, genetic predisposition may also be important in the pathogenesis of AE. Human leukocyte antigen (HLA) is the genetic factor most frequently associated with autoimmune diseases, due to its genetic complexity and key role in the adaptive immune response. The aim of the study is to describe HLA profile in three groups of autoimmune encephalitis and related disorders: anti-LGI1, anti-CASPR2 and anti-GAD neurological diseases.
Autoimmune Encephalitis is a disorder of the central nervous system caused by bodily substances, called antibodies. Antibodies normally help the body to prevent infections. However, in this disorder, the antibodies turn against the body itself and especially against cells in the brain and disturb the normal brain function. They are therefore called autoantibodies. There is no specific therapy for patients with autoimmune encephalitis so far. At the moment, the symptoms are treated with approved medications such as cortisone and immunotherapies also used in oncology. These therapies are unspecified and aim to reduce the number of autoantibodies and to contain the autoimmune process. In this trial we aim to test a new therapy option: in this therapy the body cells producing autoantibodies will be specifically targeted by a substance called bortezomib. The trial addresses patients with severe autoimmune encephalitis. The aim of the trial is to evaluate the efficacy and safety of bortezomib in patients with severe autoimmune encephalitis.
This study aims to provide an estimate of the incidence of paraneoplastic neurological syndromes and autoimmune encephalitides in France between the years 2016 and 2018. The study will describe the incidence of antibody subtypes and regional variations.
Autoimmune encephalitis represents a group of rare and heterogeneous neurological disorders. Pathophysiological mechanisms in these diseases are still unknown. Recently, oculomotor and neurovisual disorders have been described. Cerebral areas and neuronal networks associated with these abnormalities are well described. The investigator proposes to study and describe such neuro-ophthalmological disorders in a prospective cohort of patients with a autoimmune encephalitis, to better understand the pathophysiological basis of this neurological condition.
This pilot study is a randomized, double-blind, placebo controlled study of the efficacy of ocrelizumab in autoimmune encephalitis. Subjects with new diagnosis of autoimmune encephalitis will be invited to enroll in this study. Subjects will be randomized to receive ocrelizumab (an anti-CD20 therapy) or matched placebo, and will undergo three infusions over a six month period. Subjects will complete clinical visits over the study period, during which safety monitoring and neuropsychological assessments will be performed to assess for signs of clinical worsening from encephalitis. The primary outcome of this study is the proportion of patients who fail to complete the twelve month period without clinical worsening, as defined by the protocol. Subjects who experience early clinical worsening during the study may be offered open-label treatment with ocrelizumab at the discretion of the investigators.