Efficacy and Safety of Oral BG00012 in Relapsing-Remitting Multiple Sclerosis (DEFINE)
To determine if treatment with BG00012 can decrease the number of MS relapses during a certain time period. To determine if, over time, BG00012 treatment can decrease the number of certain types of brain lesions commonly seen in MS patients and slow down the time it takes for the disease to get worse.
The purpose of this study is also to determine the safety of BG00012 and how well it is tolerated. Another goal is to see what effect BG00012 may have on tests and evaluations used to assess MS.
|Relapsing-Remitting Multiple Sclerosis||Drug: BG00012 Drug: Placebo||Phase 3|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
|Official Title:||A Randomized, Multicenter, Double-Blind, Placebo-Controlled, Dose-Comparison Study to Determine the Efficacy and Safety of BG00012 in Subjects With Relapsing-Remitting Multiple Sclerosis|
- Proportion of Subjects Relapsed [ Time Frame: 2 years ]A protocol-defined relapse was defined as new or recurrent neurologic symptoms not associated with fever or infection that lasted at least 24 hours, and were separated by at least 30 days from onset of a preceding relapse. All protocol-defined relapses were evaluated by an independent neurolgic evaluation committee. The proportion of subjects with a relapse was estimated using the Kaplan-Meier method, which was based on the time-to-first-relapse survival distribution.
- Number of New or Newly Enlarging T2 Hyperintense Lesions [ Time Frame: 2 years ]The number of new or newly enlarging T2 hyperintense lesions at 2 years that developed in each subject compared to baseline assessed on brain magnetic resonance imaging (MRI) scans. The estimates of mean T2 lesion count were calculated from a negative binomial regression model adjusted for region and baselineT2 lesion volume
- Number of Gadolinium-enhancing T1-weighted Lesions [ Time Frame: 2 years ]The number of Gd-enhancing lesions was assessed using brain MRI scans following administration of gadolinium, a contrast agent. The mean number of Gd-enhancing lesions at 2 years was the average of the number of lesions at 2 years in a treatment group.
- Number of Subjects With Gadolinium (Gd)-Enhancing Lesions [ Time Frame: 2 years ]Note: This outcome measure represents the categorical analysis for the previously listed secondary outcome measure "Number of Gadolinium-enhancing T1-weighted lesions"
- Annualized Relapse Rate [ Time Frame: 2 years ]A protocol-defined relapse was defined as new or recurrent neurologic symptoms not associated with fever or infection that lasted at least 24 hours, and were separated by at least 30 days from onset of a preceding relapse. All protocol-defined relapses were evaluated by an independent neurologic evaluation committee. The adjusted annualized relapse rate was calculated from a negative binomial regression model, adjusted for baseline EDSS (≤ 2.0 vs. >2.0), age (<40 versus ≥40 years), region, and the number of relapses in the 1 year prior to enrollment.
- Proportion of Subjects Experiencing Progression of Disability Assessed Using the Expanded Disability Status Scale (EDSS) [ Time Frame: 2 years ]The EDSS is based on a standardized neurological examination and focuses on symptoms that commonly occur in MS. EDSS scores range from 0.0 (normal) to 10.0 (death due to MS). Disability progression was defined as ≥ 1.0 point increase in subjects with a baseline EDSS of ≥1.0, or a ≥1.5 point increase in subjects with a baseline EDSS = 0, and required that the increase from baseline was confirmed ≥12 weeks later. The proportion of subjects with confirmed (12-week) disability progression was estimated using the Kaplan-Meier method, which was based on the time-to-first-progression survival distribution.
|Study Start Date:||January 2007|
|Study Completion Date:||February 2011|
|Primary Completion Date:||February 2011 (Final data collection date for primary outcome measure)|
Placebo Comparator: Placebo
Participants received two placebo capsules orally three times daily (TID)
Experimental: BG00012 240 mg Twice Daily (BID)
Participants received two 120 mg BG00012 capsules orally twice daily (BID) and two placebo capsules orally once daily (QD)
Experimental: BG00012 240 mg 3 Times Daily (TID)
Participants received two 120 mg BG00012 capsules orally three times daily (TID)
Please refer to this study by its ClinicalTrials.gov identifier: NCT00420212
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|Study Director:||Medical Director||Biogen|