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Safety and Efficacy of Oral Fampridine-SR for the Treatment of Spasticity Resulting From Spinal Cord Injury

This study has been completed.
Information provided by (Responsible Party):
Acorda Therapeutics Identifier:
First received: July 12, 2002
Last updated: April 25, 2013
Last verified: April 2013
Normally, nerve fibers carry electrical impulses through the spinal cord, providing communication between the brain and the arms and legs. In people with spinal cord injury, some fibers may be destroyed at the site of injury, while others remain connected but do not work correctly to carry electrical impulses. As a result, subjects with an incomplete spinal cord injury may have spasticity which is muscle spasms or muscle stiffness that makes movement difficult. Fampridine-SR is an experimental drug that increases the ability of the nerve to conduct electrical impulses. This study will examine the effects of Fampridine-SR on moderate to severe lower-limb spasticity, as well as the effects on bodily functions such as bladder control, bowel function and sexual function. The study will also examine the possible risks of taking Fampridine-SR.

Condition Intervention Phase
Spinal Cord Injury
Muscle Spasticity
Drug: Fampridine-SR
Other: Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator)
Primary Purpose: Treatment
Official Title: Double-Blind, Placebo-Controlled, 12-Week Parallel Group Study to Evaluate Safety and Efficacy of Oral Fampridine-SR in Subjects With Moderate to Severe Spasticity Resulting From Chronic, Incomplete Spinal Cord Injury

Resource links provided by NLM:

Further study details as provided by Acorda Therapeutics:

Primary Outcome Measures:
  • Double-blind Change From Baseline in Ashworth Score Evaluating Spasticity [ Time Frame: Baseline (visits 2,3) average score days 7,14 and double blind treatment period (visits 4-7) average score days 28-98 ]
    The Ashworth Score is the average rating (based on a scale of 1 to 5) of four lower extremity muscle groups; left and right knee flexors and extensors (hamstrings and quadriceps muscles). A higher Ashworth Score indicates a greater degree of abnormal muscle tone (spasticity) and a negative change in score indicates improvement.

  • Double-blind Change From Baseline in Subject's Global Impression (SGI) of Treatment [ Time Frame: Baseline (visits 2,3) average score days 7,14 and double blind treatment period (visits 4-7) average score days 28-98 ]
    This questionnaire asked the patient to evaluate the effects of investigational drug on his/her quality of life during the preceding week using a 7-point scale (from 1=terrible to 7=delighted). A positive change score in SGI indicates improved outcome.

Enrollment: 213
Study Start Date: July 2002
Study Completion Date: May 2004
Primary Completion Date: February 2004 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: fampridine-SR 50mg/day Drug: Fampridine-SR
25mg bid (twice daily)
Placebo Comparator: Placebo Other: Placebo


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

Inclusion Criteria:

  • Incomplete traumatic Spinal Cord Injury (at least 18 months prior and stable for 6 months)
  • Moderate to severe lower-limb spasticity
  • Able to give informed consent and willing to comply with protocol

Exclusion Criteria:

  • Pregnancy
  • History of seizures
  • Existing or history of frequent Urinary Tract Infections
  • History of drug or alcohol abuse
  • Allergy to pyridine-containing substances
  • Received a botox injection 4 months prior to study
  • Received an investigational drug within 30 days
  • Previously treated with 4-aminopyridine (4-AP)
  • Not on stable medication dosing in 3 weeks prior to study
  • Abnormal ECG or laboratory value at screening
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00041717

  Show 45 Study Locations
Sponsors and Collaborators
Acorda Therapeutics
Study Director: Andrew Blight Acorda Therapeutics
  More Information

Additional Information:
Responsible Party: Acorda Therapeutics Identifier: NCT00041717     History of Changes
Other Study ID Numbers: SCI-F301
Study First Received: July 12, 2002
Results First Received: February 26, 2013
Last Updated: April 25, 2013

Keywords provided by Acorda Therapeutics:
spinal cord injury
muscle spasticity

Additional relevant MeSH terms:
Muscle Spasticity
Wounds and Injuries
Spinal Cord Injuries
Spinal Cord Diseases
Central Nervous System Diseases
Nervous System Diseases
Trauma, Nervous System
Muscular Diseases
Musculoskeletal Diseases
Muscle Hypertonia
Neuromuscular Manifestations
Neurologic Manifestations
Signs and Symptoms
Potassium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action processed this record on April 24, 2017