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Natalizumab in Inclusion Body Myositis (IBM)

2015-06-30 07:53:24 | BioPortfolio

Summary

Muscle biopsies of patients with Inclusion Body Myositis (IBM) have demonstrated a T-cell predominant inflammatory infiltrate, therefore, new agents targeting T -cell mediated cell death may be a novel treatment for IBM. Such an agent capable of preventing T-cell movement out of the vasculature, such as natalizumab, may be beneficial in IBM patients. Six patients will be recruited to participate in this phase I trial.

Description

This is a phase I open label, non-placebo controlled trial evaluating the safety and efficacy of natalizumab in patients with IBM. Pre and post treatment muscle biopsies including measurements of the degree of inflammation as well as the types of inflammatory cells will be measured. The investigators will also assess quality of life, the inclusion body myositis functional rating score (IBM-FRS), and patient and physician global impression of change. Manual muscle testing and quantitative dynamometry will also be evaluated to see if patient's strength improves.

Patients who are eligible to participate and have signed a consent form will have a muscle biopsy performed at baseline and at the end of the study. Physical and neurological exams, as well as IBM-FRS, safety labs will be conducted and collected at monthly visits. Patients will start natalizumab therapy at 300mg intravenously every 4 weeks for 24 weeks. All study related procedures will be conducted at Phoenix Neurological Associates, as well as all infusions and muscle biopsies

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Inclusion Body Myositis (IBM)

Intervention

Natalizumab

Location

Phoenix Neurological Insitutute
Phoenix
Arizona
United States
85018

Status

Recruiting

Source

Phoenix Neurological Associates, LTD

Results (where available)

View Results

Links

Published on BioPortfolio: 2015-06-30T07:53:24-0400

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Medical and Biotech [MESH] Definitions

Progressive myopathies characterized by the presence of inclusion bodies on muscle biopsy. Sporadic and hereditary forms have been described. The sporadic form is an acquired, adult-onset inflammatory vacuolar myopathy affecting proximal and distal muscles. Familial forms usually begin in childhood and lack inflammatory changes. Both forms feature intracytoplasmic and intranuclear inclusions in muscle tissue. (Adams et al., Principles of Neurology, 6th ed, pp1409-10)

A disease characterized by bony deposits or the ossification of muscle tissue.

A genus of DNA viruses in the family PAPILLOMAVIRIDAE, which cause cutaneous lesions in humans. They are histologically distinguishable by intracytoplasmic INCLUSION BODIES which are species specific.

A humanized monoclonal immunoglobulin G4 antibody to human INTEGRIN ALPHA4 that binds to the alpha4 subunit of INTEGRIN ALPHA4BETA1 and integrin alpha4beta7. It is used as an IMMUNOLOGIC FACTOR in the treatment of RELAPSING-REMITTING MULTIPLE SCLEROSIS and CROHN'S DISEASE.

Circumscribed masses of foreign or metabolically inactive materials, within the CELL NUCLEUS. Some are VIRAL INCLUSION BODIES.

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