To assess in a double blinded randomized control trial (RCT) study design safety and effectiveness of balloon angioplasty of the main extracranial and extravertebral veins in multiple sclerosis (MS) associated to chronic cerebrospinal venous insufficiency (CCSVI). Mean follow-up 1 year. 5-8 Italian centres 360 relapsing remitting (RR) MS patients will be randomized, with expanded disability disease scale (EDSS) ranging 2-5.5, age 18-65.
Safety will be assessed by measuring serious and minor adverse effects related to treatment. Effectiveness will be assessed by measuring 2 primary endpoints: 1. Clinical parameters will be expressed in an integrated functional measure leading to the score, respectively, of improved, stable, worsened. Functional assessment is performed by tools permitting a quantification and will be made by a team of independent assessors. Clinical instrumental evaluation will be performed at baseline, and subsequently on 3 months basis. The outcome parameters leading to the composite functional measure are instrumental parameters, less assessor dependent, singularly validated for measuring the disability in MS. They are the followings: A) Dynamic Balance Assessment: Balance Master Limits of Stability (LOS). In static platform, swinging to reach the set position of center of pressure. B) Walking Function: The subject walks spontaneously for 10 meters with chronometric measure of time counting the number of steps. The test calculates the walk ratio i.e. ratio between length and step frequency. C) Manual dexterity. Box \& Block test, moving wooden cubes. D) Sphincter control: Post-voiding residual by ultrasounds. F) Visual acuity: Low-contrast visual acuity Sloan Letter Chart. 2. Magnetic Resonance Imaging (MRI) outcome measures: T1Gad active lesion.T2 lesion volume MRI evaluation at baseline, 6, 12 months. Secondary endpoints are: EDSS, chronic fatigue, cognitive function, rate of restenosis, annualized relapse rate.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
212
PTA of the internal jugular and/or azygous vein
The patients will undergo catheter venography but not PTA
S. Anna Hospital
Ferrara, Fe, Italy
S. Anna Hospital, University of Ferrara, Ferrara, Italy
Ferrara, Italy
Clinical parameters in an integrated functional score
Five neurological parameters will be measured by the means of proper validated tools along 1 year of follow-up. The evaluation leads to a score, respectively expressed as improved, stable, fluctuant, worsened.
Time frame: Baseline; 12 months
MRI outcome measures: T1Gad active lesion.T2 lesion volume MRI evaluation.
Standard MRI parameters will be assessed by the means of a blinded centre of lecture. Outcome measurement will be performed at baseline, 6 months and at 1 year follow-up.
Time frame: Baseline; 12 months
EDSS
EDSS will be assessed along 1 year follow-up.
Time frame: Baseline; 12 months
Chronic fatigue
This highly disabling symptom completely orphan of effective therapy will be measured by M-FIS (Modified-Fatigue Impact Scale).
Time frame: Baseline; 12 months
Cognitive function
Cognitive functions will be measured by the means of MoCA mental state questionnaire.
Time frame: Baseline; 12 months
Annualized relapse rate
In the sub population affected by the RR clinical form the number of relapse will be assessed.
Time frame: Baseline; 12 months
Patency rate
The rate of successful PTA will be assessed by the means of postoperative Doppler sonography.
Time frame: Baseline; 12 months
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Emotional status
Anxiety and Depression Scale for use with multiple sclerosis patients will be administered.
Time frame: Baseline; 1 year
Memory and cognition
The assessment will be performed by the means of PASAT - Paced Auditory Serial Addition Test
Time frame: Baseline; 1 year
Overactive Bladder
Overactive Bladder symptom will be measured by the means of validated Overactive Bladder Questionnaire-b.
Time frame: Baseline; 1 year