The primary objective of the study is to evaluate the impact of early treatment with Tysabri in Relapsing Remitting Multiple Sclerosis (RRMS) participants on their quality of life (QoL) as measured by Multiple Sclerosis Impact Scale-29 (MSIS-29) over 2 years. The secondary objectives of the study are: to evaluate the impact of early treatment with Tysabri in RRMS participants over 2 years on the following: annualized relapse rate (ARR), Expanded Disability Status Scale (EDSS), work productivity, quality of life (QoL) by EuroQol 5-Dimension questionnaire (EQ-5D), QoL by Subject Global Assessment of Wellbeing visual analog scale (VAS) and to evaluate clinical disease-free status (relapses, EDSS) over 2 years.
Study Type
OBSERVATIONAL
Enrollment
73
Vancouver Island Health Authority
Victoria, British Columbia, Canada
Saint John Regional Hospital
Saint John, New Brunswick, Canada
Dalhousie MS Research Unit
Halifax, Nova Scotia, Canada
Cape Breton Regional Hospital
Sydney, Nova Scotia, Canada
London Health Sciences Centre
London, Ontario, Canada
Sunnybrook Health Sciences Centre
Toronto, Ontario, Canada
Clinique Neuro-Outaouais
Gatineau, Quebec, Canada
Neuro Rive-Sud
Greenfield Park, Quebec, Canada
CHUM - Hopital Notre Dame
Montreal, Quebec, Canada
McGill University - MNI
Montreal, Quebec, Canada
...and 1 more locations
Change from Baseline in Multiple Sclerosis Impact Scale-29 (MSIS-29)
The 29-item Multiple Sclerosis Impact Scale (MSIS-29) is a patient-reported outcome measure to assess the impact of MS on day-to-day life during the past 2 weeks from a patient's perspective; it measures 20 physical items and 9 psychological items. The physical score is generated by summing individual items and then transforming to a scale with a range of 0 to 100, where high scores indicate worse health.
Time frame: Baseline, Months 12 and 24
Change from Baseline in Annualized Relapse Rate
A clinical relapse is defined as new or recurrent neurological symptoms, not associated with fever, lasting for at least 24 hours, and followed by a period of 30 days of stability or improvement.
Time frame: Baseline, Months 12 and 24
Change from Baseline in Expanded Disability Status Scale (EDSS)
The EDSS measures disability status on a scale ranging from 0 to 10, with higher scores indicating more disability. Scoring is based on measures of impairment in eight functional systems on examination by a neurologist.
Time frame: Baseline, Months 12 and 24
Change from Baseline in Work Productivity and Activity Impairment
The Work Productivity and Activity Impairment (WPAI) questionnaire is a validated instrument to measure impairments in work and activities. The WPAI yields four types of scores: 1. Absenteeism (work time missed) 2. Presenteesism (impairment at work / reduced on-the-job effectiveness) 3. Work productivity loss (overall work impairment / absenteeism plus presenteeism) 4. Activity Impairment. WPAI outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity.
Time frame: Baseline, Months 12 and 24
Change from Baseline in EuroQol 5-Dimension (EQ-5D)
The EQ-5D is a self-administered questionnaire consisting of 5 sets of 3 questions pertaining to specific health states (i.e., mobility, self-care, pain, usual activities, anxiety), and a visual analog scale that records the respondent's self-rated health from 0 (worst imaginable health state) to 100 (best imaginable health state).
Time frame: Baseline, Months 12 and 24
Change from Baseline in Patient Global Assessment of Wellbeing Visual Analog Scale
Patient Global Assessment of Wellbeing measures quality of life on a 100 mm Visual Analog Scale (VAS) where 0 is the worst imaginable health state and 100 is the best imaginable health state.
Time frame: Baseline, Months 12 and 24
Percentage of participants with Clinical Disease-Free Status
Freedom from clinical disease activity is defined as the percentage of participants with no relapse and no EDSS progression, defined as a 1-point change from baseline. EDSS measures disability status on a scale ranging from 0 to 10, with higher scores indicating more disability. Scoring is based on measures of impairment in eight functional systems on examination by a neurologist.
Time frame: Baseline, Months 12 and 24
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