Open-Label Extension Study to Evaluate the Safety, Tolerability and Activity of Oral Fampridine-SR Tablets in Multiple Sclerosis Patients Who Participated in the MS-F203 Trial

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: NCT00648908
Recruitment Status : Completed
First Posted : April 1, 2008
Results First Posted : February 27, 2012
Last Update Posted : February 27, 2012
Information provided by (Responsible Party):
Acorda Therapeutics

Brief Summary:
The purpose of this study is to evaluate the safety, tolerability and activity of Fampridine-SR when administered for up to 36 additional months, or until it becomes commercially available whichever comes first, in subjects who previously participated in Acorda Therapeutics Protocol MS-F203.

Condition or disease Intervention/treatment Phase
Multiple Sclerosis Drug: Fampridine-SR 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 MS patients over a long period of time.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 269 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase 3 Open-Label Extension Study to Evaluate the Safety, Tolerability and Activity of Oral Fampridine-SR in Subjects With Multiple Sclerosis Who Participated in the MS-F203 Trial
Study Start Date : June 2006
Actual Primary Completion Date : January 2011
Actual Study Completion Date : April 2011

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Intervention Details:
    Drug: Fampridine-SR
    Tablets, 10 mg, BID
    Other Name: 4-aminopyridine

Primary Outcome Measures :
  1. Summary of Treatment Emergent Adverse Events (TEAE). [ Time Frame: up to 5 years ]
    All adverse events reported were treatment emergent. Therefore, events that had a date of onset, or worsening, on or after the start of the open-label drug and up to 14 days after the last dose (for non-serious events) or up to 30 days after the last dose (for SAEs) were summarized. Any abnormal clinically significant changes in physical examination, medical history, clinical laboratory testing, 12-lead ECG, and standard EEG testing were captured as adverse events.

Secondary Outcome Measures :
  1. Timed 25 Foot Walk (T25FW) [ Time Frame: Week 2, 14, 26, continuing every 26 weeks until the Final Visit ]
  2. Subject Global Impression (SGI) [ Time Frame: visit 1 and every clinic visit ]

    Patients asked to complete a Subject Impression questionnaire rating his/her impression of the effects of study drug during the preceding week, specifically in regards to signs and symptoms associated with Multiple Sclerosis (MS).

    For the SGI, the potential responses to the effects of the investigational drug during the preceding week were 1=terrible, 2=unhappy, 3=mostly dissatisfied, 4=neutral/ mixed, 5=mostly satisfied, 6=pleased, and 7=delighted.

  3. Clinician Global Impression of Change (CGIC) [ Time Frame: visit 1 and every clinic visit ]

    Investigator's overall impression of the patients neurological status and general state of health related to his/her participation in the study; specifically signs and symptoms associated with MS.

    The potential responses were 1=very much improved, 2=much improved, 3=somewhat improved, 4=no change, 5=somewhat worse, 6=much worse, and 7=very much worse.

  4. Expanded Disability Status Scale (EDSS) [ Time Frame: Screening visit, visit 6 and every 24 months thereafter ]

    Each patient, based on their baseline neurological exam, are scored according to the EDSS

    The EDSS was used to grade patient disability on a scale from 0.0 (normal neurological exam) to 10.0 (death) at the Screening Visit, Visit 6, and Final Visit or Early Termination Visit if applicable.

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

Inclusion Criteria:

  • subject must have been previously enrolled in Acorda Therapeutics MS-F203 study for multiple sclerosis and received either Fampridine-SR or placebo
  • subject is a man or woman with clinical definite multiple sclerosis as defined by McDonald (McDonald WI, et al. Recommended Diagnostic Criteria for Multiple Sclerosis; Guidelines from the International Panel on the Diagnosis of Multiple Sclerosis; Annals of Neurology. 2001; 50: 121-127)
  • subject must be at least 18 years of age. Any subject who is now over the age of 70 must be in good overall health in the judgment of the Investigator
  • subject must be of adequate cognitive function, as judged by the Investigator, to understand and sign the IRB/REB-approved informed consent form prior to the performance of any study-specific procedures and is willing to comply with the required scheduling and assessments of the protocol
  • subjects who are women of childbearing potential, regardless of sexual activity, must have a negative urine pregnancy test at the Screening Visit.

Exclusion Criteria:

  • women who are either pregnant or breastfeeding, and women of childbearing potential (defined as not surgically sterile or at least two years post menopausal) who are engaged in active heterosexual relations and, are not using one of the following birth control methods: tubal ligation, implantable contraception device, oral, patch, injectable or transdermal contraceptive, barrier method or sexual activity restricted to vasectomized partner.
  • subject discontinued prematurely from the MS-F203 study
  • subject has a history of seizures or has evidence of past, or possible, epileptiform activity on an EEG
  • subject has either a clinically significant abnormal ECG or laboratory value(s) at the Screening visit, as judged by the Investigator that would preclude entry into the study. ECG and laboratory results from Visit 6 or repeat results from Visit 7 of the MS-F203 study may be used as the baseline for the current study
  • subject has angina, uncontrolled hypertension, clinically significant cardiac arrhythmias, or any other clinically significant cardiovascular abnormality, as judged by the Investigator
  • subject has a known allergy to pyridine-containing substances or any of the inactive ingredients of the Fampridine-SR tablet (hydroxypropyl methylcellulose, microcrystalline cellulose, colloidal silicon dioxide, magnesium stearate, opadry white (tablet film coating))
  • subject has received an investigational drug, except for Fampridine-SR or matching placebo under protocol MS-F203, within 30 days of the Screening Visit. Subject is scheduled to enroll in an investigational drug trial at any time during this study.
  • subject has a history of drug or alcohol abuse within the past year

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): NCT00648908

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Sponsors and Collaborators
Acorda Therapeutics
Study Director: Bonnie Faust Acorda Therapeutics

Additional Information:
Responsible Party: Acorda Therapeutics Identifier: NCT00648908     History of Changes
Other Study ID Numbers: MS-F203EXT
First Posted: April 1, 2008    Key Record Dates
Results First Posted: February 27, 2012
Last Update Posted: February 27, 2012
Last Verified: January 2012

Keywords provided by Acorda Therapeutics:
multiple sclerosis
leg strength

Additional relevant MeSH terms:
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