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A Cooperative Clinical Study of Abatacept in Multiple Sclerosis

2014-08-27 03:13:59 | BioPortfolio

Summary

The ACCLAIM study is testing whether the medication "abatacept" can be of benefit to patients with relapsing-remitting multiple sclerosis. Although abatacept is an investigational medication for MS, it is not a new drug - it has been approved by the FDA to treat rheumatoid arthritis.

Description

MS is a chronic autoimmune disease in which blood cells that are supposed to protect the body from infection mistakenly attack the body's own tissue. In MS, the target of this attack is a protein called myelin that coats nerves throughout the body. Damage to this protective layer can lead to loss of neurologic function.

There are a number of treatments available to MS patients. Interferon beta, Copaxone, and other drugs can delay the worsening of the disease in some patients. For other patients, more aggressive treatment with chemotherapy drugs such as Cytoxan or Imuran are needed. These drugs attempt to slow the disease by limiting the activity of the entire immune system. Because of this, they can often have serious side effects.

The ACCLAIM Study is testing a medication called "abatacept." Abatacept works different from most other MS treatments, as it is more specific in the immune cells that it targets. While abatacept is considered experimental for MS, it has been approved by the FDA to treat rheumatoid arthritis.

In the first phase of the study, all participants will receive 8 intravenous treatments over a period of 24 weeks. Then, if a participant remains eligible, they will enter the second phase of the study and will receive another 8 treatments over the following 24 weeks. Two-thirds (2 out of 3) of participants will receive the study drug abatacept in the first phase, and then an inactive form of the drug in the second phase. The remaining one-third (1 in 3) will get the placebo first, then the study drug in the second phase if they remain eligible. Therefore, all participants in the ACCLAIM trial will have the opportunity to receive the study drug abatacept if they remain healthy during the study. Participants will be asked to return for a follow-up visit 12 weeks after all treatments have been completed.

Regular appointments scheduled during the trial will be used to monitor participants' health and progress in the study. These appointments will include: physical and neurological exams, blood tests and motor function assessments. A total of 11 MRI procedures are scheduled during the study. The study medication and procedures related to the study will be provided at no expense to the participant.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment

Conditions

Multiple Sclerosis, Relapsing-Remitting

Intervention

abatacept, Placebo

Location

Brigham & Women's Hospital
Boston
Massachusetts
United States

Status

Not yet recruiting

Source

National Institute of Allergy and Infectious Diseases (NIAID)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:13:59-0400

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Medical and Biotech [MESH] Definitions

A form of multiple sclerosis characterized by a progressive deterioration in neurologic function which is in contrast to the more typical relapsing remitting form. If the clinical course is free of distinct remissions, it is referred to as primary progressive multiple sclerosis. When the progressive decline is punctuated by acute exacerbations, it is referred to as progressive relapsing multiple sclerosis. The term secondary progressive multiple sclerosis is used when relapsing remitting multiple sclerosis evolves into the chronic progressive form. (From Ann Neurol 1994;36 Suppl:S73-S79; Adams et al., Principles of Neurology, 6th ed, pp903-914)

A non-glycosylated form of interferon beta-1 that has a serine at position 17. It is used in the treatment of both RELAPSING-REMITTING MULTIPLE SCLEROSIS and CHRONIC PROGRESSIVE MULTIPLE SCLEROSIS.

A random polymer of L-ALANINE, L-GLUTAMIC ACID, L-LYSINE, and L-TYROSINE that structurally resembles MYELIN BASIC PROTEIN. It is used in the treatment of RELAPSING-REMITTING MULTIPLE SCLEROSIS.

An autoimmune disorder mainly affecting young adults and characterized by destruction of myelin in the central nervous system. Pathologic findings include multiple sharply demarcated areas of demyelination throughout the white matter of the central nervous system. Clinical manifestations include visual loss, extra-ocular movement disorders, paresthesias, loss of sensation, weakness, dysarthria, spasticity, ataxia, and bladder dysfunction. The usual pattern is one of recurrent attacks followed by partial recovery (see MULTIPLE SCLEROSIS, RELAPSING-REMITTING), but acute fulminating and chronic progressive forms (see MULTIPLE SCLEROSIS, CHRONIC PROGRESSIVE) also occur. (Adams et al., Principles of Neurology, 6th ed, p903)

The most common clinical variant of MULTIPLE SCLEROSIS, characterized by recurrent acute exacerbations of neurologic dysfunction followed by partial or complete recovery. Common clinical manifestations include loss of visual (see OPTIC NEURITIS), motor, sensory, or bladder function. Acute episodes of demyelination may occur at any site in the central nervous system, and commonly involve the optic nerves, spinal cord, brain stem, and cerebellum. (Adams et al., Principles of Neurology, 6th ed, pp903-914)

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