Short and Long Term Multiple Outcomes in Persons With Multiple Sclerosis Treated by Fampridine.
NCT ID: NCT02849782
Last Updated: 2021-02-02
Study Results
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Basic Information
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COMPLETED
PHASE4
89 participants
INTERVENTIONAL
2014-02-04
2019-03-01
Brief Summary
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Fampridine was prescribed according to guidelines issued by the French Health Products Safety Agency at the dose of 10 mg twice daily. Fampridine is indicated for the improvement of walking in MS patients with a walking disability (EDSS 4-6.5). A walking test is recommended to evaluate improvement after 2 weeks of treatment. According to the practitioner evaluation between Pre 2 and Post 1 (i.e. before and after fampridine treatment), patients were classified into 2 groups: responders whose clinical status was improved and non-responders whose clinical status was not improved.
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Detailed Description
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Studies have shown that MS symptomatic treatment by fampridine (4-aminopyridine) is associated with improvements in walking and muscle strength and possibly with cognition, vision, fatigue and spasticity. Indeed, fampridine is a potassium channel blocker which reduces the leakage of ionic current through these channels, prolonging repolarization and thus, enhancing action-potential formation in demyelinated axons. Presumably, by enhancing action-potential formation, more impulses might be conducted in the central nervous system (CNS) and neurological functions could be ameliorated. In recent phase III studies, Goodman et al. investigated the fampridine effect on the walk of individuals with MS during a timed 25-foot walk test (T25FW). Improvement in walking velocity (≈25 % from baseline) was found for 35-43 % of the individuals in the interventional group.
However, improvement in neuronal conduction induced by fampridine might not be limited to short distances of gait or even to motor functions and might also improve long distance ambulation or cognitive functions.
Different assessments have been used for measuring gait impairments in multiple sclerosis, including the Timed 25-Foot Walk (T25FW), Six-Minute Walk Test (6MWT), spatio-temporal gait parameters measured with an instrumented walkway or the Timed Up and Go test (TUG). These different assessments can be performed at different conditions: simple task, fast speed or dual task. In this last case, the gait is associated with a cognitive or another motor task. For cognitive assessments, Symbol Digit Modalities Test (SDMT) and verbal fluencies have been used in previous studies.
The aimed of the study was to evaluate the impact of fampridine in gait evaluating by long distance tests and to evaluate the impact of fampridine in fatigue and cognition.
Assessments of patients were performed 7 days before fampridine treatment initiation (Pre 1), on the day of fampridine treatment initiation (Pre 2), 14 and 21 days after fampridine treatment initiation, respectively Post 1 and Post 2. Gait evaluations were assessed at Pre 1, Pre 2 and Post 1. The first two assessments were intended to evaluate the variability of measurement without any treatment. A measurement of activity was performed by accelerometer during the period covering the first two assessments. The third assessment was intend to measure clinical improvements. The fourth seeks to show a potentially delayed action of fampridine on cognition.
Conditions
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Study Design
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NON_RANDOMIZED
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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Fampridine responder
Persons who have been diagnosed as Multiple Sclerosis according to Mc Donald Criteria : person with Multiple Sclerosis (PwMS).
Fampridine was prescribed according to the guidelines issued by the French National Security Agency of Medicines and Health Products (ANSM) at the dose of 10 mg twice a day. According to official ANSM guidelines, the prescription is initially limited to 2 weeks of therapy, at which point a new assessment is performed by the medical practitioner to evaluate the clinical benefits. Fampridine responder is a PwMS with an improvement in the judgment of the practitioner.
Fampridine
Oral intake of 10 mg twice daily
Fampridine non responder
Persons who have been diagnosed as Multiple Sclerosis according to Mc Donald Criteria : person with Multiple Sclerosis (PwMS).
Fampridine was prescribed according to the guidelines issued by the French National Security Agency of Medicines and Health Products (ANSM) at the dose of 10 mg twice a day. According to official ANSM guidelines, the prescription is initially limited to 2 weeks of therapy, at which point a new assessment is performed by the medical practitioner to evaluate the clinical benefits. Fampridine non responder is a PwMS without any improvement in the judgment of the practitioner.
Fampridine
Oral intake of 10 mg twice daily
Interventions
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Fampridine
Oral intake of 10 mg twice daily
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* EDSS status between 4.0 and 6.5
* patients able to walk during 6 minutes
Exclusion Criteria
* history of epilepsy or epileptic seizure
* immunotherapy change in the previous 60 days
* beginning anti-spastic treatment in the previous 30 days
* beginning treatment that is able to decrease fatigue symptoms in the previous 30 days
* modification of the rehabilitation program during the study
* renal insufficiency (creatinine clearance \<80ml.min-1 given by the Cockroft-Gault formula)
* concomitant treatment by organic cation transporter 2 inhibitor
* hypersensitivity to fampridine
18 Years
80 Years
ALL
Yes
Sponsors
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Centre Hospitalier Universitaire de Besancon
OTHER
Responsible Party
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Locations
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CHU Jean Minjoz
Besançon, , France
Countries
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References
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Allart E, Benoit A, Blanchard-Dauphin A, Tiffreau V, Thevenon A, Zephir H, Outteryck O, Lacour A, Vermersch P. Sustained-released fampridine in multiple sclerosis: effects on gait parameters, arm function, fatigue, and quality of life. J Neurol. 2015 Aug;262(8):1936-45. doi: 10.1007/s00415-015-7797-1. Epub 2015 Jun 5.
Almarwani M, Perera S, VanSwearingen JM, Sparto PJ, Brach JS. The test-retest reliability and minimal detectable change of spatial and temporal gait variability during usual over-ground walking for younger and older adults. Gait Posture. 2016 Feb;44:94-9. doi: 10.1016/j.gaitpost.2015.11.014. Epub 2015 Nov 30.
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Other Identifiers
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API/2014/49
Identifier Type: -
Identifier Source: org_study_id
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