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Efficacy and Safety Study of Oral BG00012 With Active Reference in Relapsing-Remitting Multiple Sclerosis (CONFIRM)

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Biogen Idec
ClinicalTrials.gov Identifier:
NCT00451451
First received: March 21, 2007
Last updated: May 5, 2014
Last verified: May 2014
Results First Received: May 5, 2014  
Study Type: Interventional
Study Design: Allocation: Randomized;   Endpoint Classification: Safety/Efficacy Study;   Intervention Model: Parallel Assignment;   Masking: Double Blind (Subject, Investigator);   Primary Purpose: Treatment
Condition: Relapsing-Remitting Multiple Sclerosis
Interventions: Drug: BG00012
Drug: Placebo
Drug: Glatiramer Acetate

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Subjects were randomized at 205 investigational sites in 28 countries.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
From screening, 1430 eligible subjects were equally randomized. Of these, 1417 subjects received at least one dose of study treatment and comprised the intent-to-treat (ITT) and safety populations.

Reporting Groups
  Description
Placebo Participants received two placebo capsules orally three times daily (TID)
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)
BG00012 240 mg 3 Times Daily (TID) Participants received two 120 mg BG00012 capsules orally three times daily (TID)
Glatiramer Acetate (GA) 20 mg Injection Once Daily (QD) Participants received glatiramer acetate (GA) 20 mg subcutaneous injection once daily (QD)

Participant Flow:   Overall Study
    Placebo     BG00012 240 mg Twice Daily (BID)     BG00012 240 mg 3 Times Daily (TID)     Glatiramer Acetate (GA) 20 mg Injection Once Daily (QD)  
STARTED     363 [1]   359 [2]   345 [3]   350 [4]
COMPLETED     278     284     273     292  
NOT COMPLETED     85     75     72     58  
Adverse Event                 11                 21                 26                 10  
Lost to Follow-up                 11                 9                 8                 11  
Consent Withdrawn                 14                 9                 17                 17  
Investigator Decision                 6                 2                 1                 2  
Subject Non-Compliance                 8                 4                 3                 3  
Death                 1                 0                 0                 1  
Other Reasons for Not Completing Study                 34                 30                 17                 14  
[1] 363 participants were dosed; 363 participants were randomized
[2] 359 participants were dosed; 362 participants were randomized
[3] 345 participants were dosed; 345 participants were randomized
[4] 350 participants were dosed; 360 participants were randomized



  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
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Reporting Groups
  Description
Placebo Participants received two placebo capsules orally three times daily (TID)
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)
BG00012 240 mg 3 Times Daily (TID) Participants received two 120 mg BG00012 capsules orally three times daily (TID)
Glatiramer Acetate (GA) 20 mg Injection Once Daily (QD) Participants received glatiramer acetate (GA) 20 mg subcutaneous injection once daily (QD)
Total Total of all reporting groups

Baseline Measures
    Placebo     BG00012 240 mg Twice Daily (BID)     BG00012 240 mg 3 Times Daily (TID)     Glatiramer Acetate (GA) 20 mg Injection Once Daily (QD)     Total  
Number of Participants  
[units: participants]
  363     359     345     350     1417  
Age  
[units: Years]
Mean ± Standard Deviation
  36.9  ± 9.24     37.8  ± 9.35     37.8  ± 9.39     36.7  ± 9.06     37.3  ± 9.26  
Gender  
[units: Participants]
         
Female     251     245     250     247     993  
Male     112     114     95     103     424  
Mean Expanded Disability Status Scale (EDSS) score  
[units: EDSS score]
Mean ± Standard Deviation
  2.59  ± 1.170     2.56  ± 1.202     2.52  ± 1.185     2.57  ± 1.223     2.56  ± 1.194  
Mean number of relapses within the previous 3 years  
[units: Number of relapses]
Mean ± Standard Deviation
  2.5  ± 1.46     2.4  ± 1.27     2.6  ± 1.50     2.4  ± 1.32     2.5  ± 1.39  
Mean number of relapses within the past 12 months  
[units: Number of relapses]
Mean ± Standard Deviation
  1.4  ± 0.80     1.3  ± 0.63     1.4  ± 0.72     1.4  ± 0.64     1.4  ± 0.70  
Time since first multiple sclerosis (MS) diagnosis  
[units: years]
Mean ± Standard Deviation
  4.8  ± 5.01     4.9  ± 5.11     4.6  ± 5.23     4.4  ± 4.70     4.7  ± 5.01  
Mean number of Gadolinium(Gd)-enhancing T1-weighted lesions [1]
[units: Number of Gd enhancing lesions]
Mean ± Standard Deviation
  2.7  ± 7.71     2.7  ± 6.22     1.9  ± 5.02     2.4  ± 6.81     2.4  ± 6.51  
[1] This baseline measure could only be assessed in the magnetic resonance imaging (MRI) cohort. The MRI cohort included 681 intent-to-treat (ITT) subjects who were enrolled at sites that participated in the MRI portion of the study and who had MRI data (167 placebo, 169 BG00012 BID, 170 BG00012 TID, and 175 GA). Sites could participate only if their MRI capability was validated by the independent MRI reading center. Approximately 95% of all subjects enrolled at MRI sites participated in the MRI portion of the study.



  Outcome Measures
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1.  Primary:   Annualized Relapse Rate   [ Time Frame: 2 years ]

2.  Secondary:   Number of New or Newly Enlarging T2 Hyperintense Lesions   [ Time Frame: 2 years ]

3.  Secondary:   Number of New T1 Hypointense Lesions   [ Time Frame: 2 years ]

4.  Secondary:   Proportion of Subjects Relapsed   [ Time Frame: 2 years ]

5.  Secondary:   Proportion of Subjects Experiencing Progression of Disability Assessed Using the Expanded Disability Status Scale (EDSS)   [ Time Frame: 2 years ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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