Active clinical trials for "Optic Neuritis"

The purpose of this study is to determine the safety and efficacy of erythropoietin as an add-on therapy to methylprednisolone in subjects with acute autoimmune optic neuritis.

The participant will receive weekly intramuscular treatment with AVONEX® (interferon beta 1-a) and a one-time high dose intravenous methotrexate with Leucovorin rescue, along with the standard solumedrol treatment before beginning AVONEX® treatment.

The primary objective of the study is to characterize the pharmacokinetics (PK) of BIIB033-B and to compare the PK profile with that of BIIB033-A in healthy volunteers. Secondary objectives are: To assess the safety and tolerability of BIIB033-A and BIIB033-B; To assess the secondary PK parameters of BIIB033-A and BIIB033-B; To assess the immunogenicity of BIIB033-A and BIIB033-B.

In light of experimental models showing that neuronal electrical activity is crucial for the remyelination process, we hypothesize that maintenance of electrical axonal activity in the early stages of optic neuritis may promote myelin repair, limiting thereby axonal degeneration. In humans, electrical stimulation of the optic nerve has been tested mainly in ischemic neuropathy and retinitis pigmentosa, which are both associated with severe axonal/retinal pathology and poor visual prognosis. In contrast, the inflammation of the optic nerve in optic neuritis is generally transient, with less severe axonal damage at the acute phase, which would allow for better efficacy of electrical stimulation as a strategy to promote remyelination and neuroprotection.In light of experimental models showing that neuronal electrical activity is crucial for the remyelination process, we hypothesize that maintenance of electrical axonal activity in the early stages of optic neuritis may promote myelin repair, limiting thereby axonal degeneration. In humans, electrical stimulation of the optic nerve has been tested mainly in ischemic neuropathy and retinitis pigmentosa, which are both associated with severe axonal/retinal pathology and poor visual prognosis. In contrast, the inflammation of the optic nerve in optic neuritis is generally transient, with less severe axonal damage at the acute phase, which would allow for better efficacy of electrical stimulation as a strategy to promote remyelination and neuroprotection.

The purpose of this study is to investigate if the simvastatin treatment improve the visual function after 3 months of the inclusion to this project and if the simvastatin influences the results on cerebral MRI after 3 and 6 months of the inclusion. In addition the development of new demyelinating relapses. In the patients with monosymptomatic acut optic neuritis to investigate whether the simvastatin reduces the risk to develop multiple sclerosis (MS).

This is both a prospective and retrospective study of patients with a known diagnosis of optic neuritis (ON) only, multiple sclerosis (MS) with ON, or neuromyelitis spectrum disorder (NMOSD) with ON. There will be no requirement for blinding (patient or assessor) and data collected with the Reflex app will be compared against other data that track optic nerve functional status, such as optical coherence tomography (OCT), visual fields (VF), low-contrast sensitivity, MRI orbits/brain and visual evoked potentials (VEP). Patients who have any diagnosis of ON, with or without a diagnosis of MS or NMOSD and who have had testing using other modalities such as VEPs, VF, low-contrast sensitivity studies, OCT, and MRI of brain or orbits will be included as retrospective subjects in the study. In this cohort, RAPD assessments will be completed and compared to against the data that has accrued as noted.

To assess the beneficial and adverse effects of corticosteroid treatment for optic neuritis. To determine the natural history of vision in patients who suffer optic neuritis. To identify risk factors for the development of multiple sclerosis in patients with optic neuritis.

To assess the beneficial and adverse effects of corticosteroid treatment for optic neuritis. To determine the natural history of vision in patients who suffer optic neuritis. To identify risk factors for the development of multiple sclerosis in patients with optic neuritis.

Patients aged between 18 and 70 with acute aquaporin-4 immunoglobulin G antibodies (AQP4-IgG) positive optic neuritis, irrespective of prior using of corticosteroids in this episode of disease, are chosen by the physician. Patients will then be randomized to receive high dose of intravenous corticosteroids combined with plasma exchange (PE), or merely high dose of intravenous corticosteroids followed subsequent taper. The main outcome of visual acuity and OCT parameters will be compared at baseline, one, three and six months after treatments, and other assessments will also be recorded and compared. This will allow for determination on whether additional PE plays a role in better prognosis in acute AQP4-IgG positive optic neuritis.

This study examines the effect of vitamin D on Retinal changes in patient with optic Neuritis.