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Study of Oral Fampridine-SR in Multiple Sclerosis

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00127530
Recruitment Status : Completed
First Posted : August 8, 2005
Results First Posted : May 6, 2011
Last Update Posted : September 11, 2018
Information provided by (Responsible Party):
Acorda Therapeutics

Brief Summary:
To assess the safety and efficacy of 10 milligram (mg) twice a day (b.i.d.) Fampridine-SR in patients diagnosed with multiple sclerosis (MS), in a double-blind, placebo-controlled, parallel group study.

Condition or disease Intervention/treatment Phase
Multiple Sclerosis Drug: Fampridine-SR Drug: Placebo Phase 3

Detailed Description:
Multiple sclerosis (MS) is a disorder of the body's immune system that affects the central nervous system (CNS). Normally, nerve fibers carry electrical impulses through the spinal cord, providing communication between the brain and the arms and legs. In people with MS, the fatty sheath that surrounds and insulates the nerve fibers (called "myelin") deteriorates, causing nerve impulses to be slowed or stopped. As a result, patients with MS may experience periods of muscle weakness and other symptoms such as numbness, loss of vision, loss of coordination, paralysis, spasticity, mental and physical fatigue and a decrease in the ability to think and/or remember. These periods of illness may come (exacerbations) and go (remissions). Fampridine-SR is an experimental drug that has been reported to possibly improve muscle strength and walking ability for some people with MS. This study will evaluate the effects and possible risks of taking Fampridine-SR in subjects with MS.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 300 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Double-Blind, Placebo-Controlled, 21-Week, Parallel Group Study to Evaluate Safety and Efficacy of Oral Fampridine-SR in Subjects With Multiple Sclerosis
Study Start Date : May 2005
Actual Primary Completion Date : June 2006
Actual Study Completion Date : September 2006

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Placebo Comparator: Placebo- sugar pill
Placebo control
Drug: Placebo
sugar pill, twice a day (b.i.d.)

Experimental: Fampridine-SR
10 milligram (mg) tablet b.i.d.
Drug: Fampridine-SR
Tablets, 10 mg, twice daily, 14 weeks
Other Name: Sustained release 4-aminopyridine, 4-AP

Primary Outcome Measures :
  1. Timed Walk Responders (Patients Who Showed Consistent Improvement on the Timed-25 Foot Walk) [ Time Frame: Days 14, 42, 70 and 98 of treatment, corresponding to the four on-drug visits during double-blind treatment period. ]
    Patients who showed a faster walking speed for at least three of the four on-drug visits during the double-blind treatment period as compared to the maximum speed for any of the five off-drug visits.

Secondary Outcome Measures :
  1. Lower Extremity Manual Muscle Test; Ashworth Score for Spasticity [ Time Frame: Days 14, 42, 70, 98 ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Have a confirmed diagnosis of multiple sclerosis
  • Are able to walk with or without an assistive device

Exclusion Criteria:

  • Pregnancy, breastfeeding or females of childbearing potential not using adequate birth control
  • Participating in other investigational drug trials
  • A medical history or clinical findings that preclude entry into the study
  • A medication history that precludes entry into the study
  • Previously treated with 4-aminopyridine (4-AP)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00127530

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Sponsors and Collaborators
Acorda Therapeutics
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Study Director: Andrew Blight, PhD Acorda Therapeutics
Publications of Results:
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Responsible Party: Acorda Therapeutics Identifier: NCT00127530    
Other Study ID Numbers: MS-F203
First Posted: August 8, 2005    Key Record Dates
Results First Posted: May 6, 2011
Last Update Posted: September 11, 2018
Last Verified: August 2018
Keywords provided by Acorda Therapeutics:
Walking Ability
Additional relevant MeSH terms:
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Multiple Sclerosis
Pathologic Processes
Demyelinating Autoimmune Diseases, CNS
Autoimmune Diseases of the Nervous System
Nervous System Diseases
Demyelinating Diseases
Autoimmune Diseases
Immune System Diseases
Potassium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action