A Study to Evaluate the Efficacy and Safety of Two Dose Strengths of Dalfampridine Extended Release Tablets.
- Conditions
- Post-Ischemic Stroke
- Interventions
- Drug: PlaceboDrug: dalfampridine-ER 7.5mgDrug: dalfampridine-ER 10mg
- Registration Number
- NCT02271217
- Lead Sponsor
- Acorda Therapeutics
- Brief Summary
The objective of this study is to determine the effect of two dose strengths of dalfampridine-Extended Release (ER) tablets, taken twice daily for 12 weeks, on stable walking deficits in subjects with post-ischemic stroke.
- Detailed Description
This was a randomized, placebo-controlled, three-arm, parallel-group study designed to evaluate the efficacy, safety, and tolerability of dalfampridine extended release (ER) tablets on chronic walking deficits in subjects with post-ischemic stroke.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 377
-
Clinical evidence of a stable walking deficit due to an ischemic stroke, as judged by the Investigator, based on review of medical records and physical exam. Such deficit was not present prior to the stroke and cannot be attributed primarily to other conditions (e.g. chronic obstructive pulmonary disease, arthritis). Evidence of walking deficits is objectively supported by any one of the following findings on clinical examination:
- obvious slowness of movement assigned primarily to the stroke
- use of an assistive walking device such as a cane or walker
- Presence of movement pattern deviations such as stiff-legged gait, foot drop, hip hiking and hip circumduction
-
Modified Rankin Scale score of 1 - 3, regardless of the cause(s) of the disability
-
Sufficient ambulatory ability to independently complete the 2MinWT and 10MWT
-
≥ 6 months from occurrence of most recent stroke
- Woman who is not surgically sterile or is less than 2 years postmenopausal, and does not agree to use a highly effective birth control method during the study and up to 3 months after the last dose of investigational product.
- Woman who is pregnant, breastfeeding, or planning to become pregnant
- History of seizures, except simple febrile seizures
- Moderate or severe renal impairment as defined by a calculated creatinine clearance of ≤ 50 mL/minute using the Cockcroft-Gault Equation
- Suicide attempt within 1 year prior to the Screening Visit, or severe suicidal ideation within 6 months prior to the Screening Visit, or subject is at significant risk of suicidal behavior in the opinion of the Investigator
- Previous use of AMPYRA, dalfampridine, fampridine or 4-aminopyridine (4-AP)
- Initiation of a serotonin reuptake inhibitor (SSRI) within 3 months prior to the Screening Visit, or any change in dosing regimen within 3 months prior to the Screening Visit
- Botulinum toxin use within 2 months prior to the Screening Visit
- Orthopedic surgical procedures in any of the extremities within the past 6 months
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Placebo Placebo Subjects randomized 1:1:1 to receive either dalfampridine-ER 7.5mg, dalfampridine-ER 10mg, or matching placebo tablets taken twice daily 12 hours apart. dalfampridine-ER 7.5 mg dalfampridine-ER 7.5mg Subjects randomized 1:1:1 to receive either dalfampridine-ER 7.5mg, dalfampridine-ER 10mg, or matching placebo tablets taken twice daily 12 hours apart. dalfampridine-ER 10mg dalfampridine-ER 10mg Subjects randomized 1:1:1 to receive either dalfampridine-ER 7.5mg, dalfampridine-ER 10mg, or matching placebo tablets taken twice daily 12 hours apart.
- Primary Outcome Measures
Name Time Method Proportion of Subjects Who Show at Least a 20% Improvement on the Two Minute Walk Test (2MinWT) at Week 12 Week 12 "The 2MinWT measures the distance a subject can walk in 2 minutes. Participants showing at Least a 20% Improvement on the 2MinWT at 12-weeks are considered "Responders".
- Secondary Outcome Measures
Name Time Method Change From Baseline on the Walking Impact Scale (Walk-12) at Week 12 (Key Secondary) Baseline, week 12 The Walk-12 is a 12-question questionnaire that asks subjects to rate limitations of their mobility during the preceding two weeks on a 5-point scale (from 1= not at all to 5=extremely). For each visit, the Walk-12 score will be calculated by summing the 12 components and transforming into a scale with a range of 0 to 100. A higher score indicates a greater degree of limitation in walking. A negative change indicates an improvement in walking. 0 = no limitation in mobility to 100 extreme limitation in mobility.
Walk-12 Score = 100 \* \[(Mean of the 12 items) - 1\]/(5-1)
Trial Locations
- Locations (74)
Acorda Site #109
🇺🇸Berkeley, California, United States
Acorda Site #186
🇺🇸Atlanta, Georgia, United States
Acorda Site #103
🇺🇸Miami, Florida, United States
Acorda Site #136
🇺🇸Boston, Massachusetts, United States
Acorda Site #133
🇺🇸Miami, Florida, United States
Acorda Site #121
🇺🇸Boston, Massachusetts, United States
Acorda Site #175
🇺🇸Fulton, Maryland, United States
Acorda Site #203
🇨🇦Fredericton, New Brunswick, Canada
Acorda Site #117
🇺🇸Gilbert, Arizona, United States
Acorda Site #181
🇺🇸Kailua, Hawaii, United States
Acorda Site #106
🇺🇸Tampa, Florida, United States
Acorda Site #142
🇺🇸Pasadena, California, United States
Acorda Site #138
🇺🇸Long Beach, California, United States
Acorda Site #110
🇺🇸Danbury, Connecticut, United States
Acorda Site #171
🇺🇸Chicago, Illinois, United States
Acorda Site #157
🇺🇸Memphis, Tennessee, United States
Acorda Site #152
🇺🇸Corvallis, Oregon, United States
Acorda Site #168
🇺🇸Portland, Oregon, United States
Acorda Site #172
🇺🇸New York, New York, United States
Acorda Site #151
🇺🇸San Diego, California, United States
Acorda Site #101
🇺🇸Kansas City, Missouri, United States
Acorda Site #170
🇺🇸Oceanside, California, United States
Acorda Site #102
🇺🇸New York, New York, United States
Acorda Site #130
🇺🇸Stamford, Connecticut, United States
Acorda Site #149
🇺🇸Fairfield, Connecticut, United States
Acorda Site #124
🇺🇸Colorado Springs, Colorado, United States
Acorda Site #147
🇺🇸Gainesville, Florida, United States
Acorda Site #128
🇺🇸Hialeah, Florida, United States
Acorda Site #188
🇺🇸Fort Wayne, Indiana, United States
Acorda Site #148
🇺🇸Avon, Indiana, United States
Acorda Site #156
🇺🇸Franklin, Indiana, United States
Acorda Site #122
🇺🇸Philadelphia, Pennsylvania, United States
Acorda Site #108
🇺🇸Houston, Texas, United States
Acorda Site #126
🇺🇸Portland, Oregon, United States
Acorda Site #116
🇺🇸Dayton, Ohio, United States
Acorda Site #123
🇺🇸East Lansing, Michigan, United States
Acorda Site #111
🇺🇸Great Falls, Montana, United States
Acorda Site #187
🇺🇸Bellevue, Ohio, United States
Acorda Site #137
🇺🇸Columbus, Ohio, United States
Acorda Site #201
🇨🇦Greenfield Park, Quebec, Canada
Acorda Site #176
🇺🇸Richmond, Virginia, United States
Acorda Site #204
🇨🇦Montréal, Quebec, Canada
Acorda Site #144
🇺🇸Providence, Rhode Island, United States
Acorda Site #131
🇺🇸New Brunswick, New Jersey, United States
Acorda Site #167
🇺🇸Durham, North Carolina, United States
Acorda Site #158
🇺🇸Abington, Pennsylvania, United States
Acorda Site #113
🇺🇸Dallas, Texas, United States
Acorda Site #165
🇺🇸Dallas, Texas, United States
Acorda Site #182
🇺🇸Alexandria, Virginia, United States
Acorda Site #105
🇺🇸Newport Beach, California, United States
Acorda Site #153
🇺🇸Sacramento, California, United States
Acorda Site #163
🇺🇸San Diego, California, United States
Acorda Site #115
🇺🇸Atlantis, Florida, United States
Acorda Site #119
🇺🇸Deerfield Beach, Florida, United States
Acorda Site #143
🇺🇸Jacksonville, Florida, United States
Acorda Site #161
🇺🇸Naples, Florida, United States
Acorda Site #145
🇺🇸Sunrise, Florida, United States
Acorda Site #146
🇺🇸Lexington, Kentucky, United States
Acorda Site #120
🇺🇸Worcester, Massachusetts, United States
Acorda Site #127
🇺🇸Detroit, Michigan, United States
Acorda Site #164
🇺🇸Bingham Farms, Michigan, United States
Acorda Site #159
🇺🇸Grand Rapids, Michigan, United States
Acorda Site #140
🇺🇸Reno, Nevada, United States
Acorda Site #177
🇺🇸Stratford, New Jersey, United States
Acorda Site #114
🇺🇸White Plains, New York, United States
Acorda Site #166
🇺🇸Chapel Hill, North Carolina, United States
Acorda Site #154
🇺🇸Raleigh, North Carolina, United States
Acorda Site #162
🇺🇸Mooresville, North Carolina, United States
Acorda Site #160
🇺🇸Cleveland, Ohio, United States
Acorda Site #132
🇺🇸Winston-Salem, North Carolina, United States
Acorda Site #107
🇺🇸Spokane, Washington, United States
Acorda Site #202
🇨🇦Halifax, Nova Scotia, Canada
Acorda Site #179
🇺🇸Patchogue, New York, United States
Acorda Site #150
🇺🇸New Orleans, Louisiana, United States