Maintenance Study Including Re-induction Therapy for Patients Who Did Not Show a Clinical Effect in Study C87037 (NCT00291668)

Phase 2

Completed

• Conditions: Crohn's Disease
• Interventions: Biological: Certolizumab pegol

• Registration Number: NCT00329420
• Lead Sponsor: UCB Pharma

Brief Summary

This 26-week extension study evaluates the efficacy and safety of certolizumab pegol administered subcutaneously every 4 weeks (dosed at Weeks 16, 20, 24, 28 and 32) in subjects with active Crohn's disease who had no clinical response at Week 6 to induction therapy in the 6-week double-blind main study, C87037 (NCT00291668), but subsequently showed clinical response at Week 14 to repeated induction therapy (dosed at Weeks 8, 10 and 12) in this extension study.

Detailed Description

This study is an open-label extension study which follows on from the 6-week double-blind main study C87037 (NCT00291668). All 'Week' numbers quoted are relative to the start of the double-blind main study. The first visit in this extension study is at Week 8, and the final efficacy assessment in this extension study, 26 weeks later, is at Week 34.

Study Timeline

• Study Start: 2006-05
• Study First Submitted: 2006-05-22
• Study First Submitted QC: 2006-05-22
• Study First Posted: 2006-05-24
• Primary Completion: 2008-05
• Study Completion: 2008-05
• Results First Submitted: 2009-05-01
• Results First Submitted QC: 2009-09-25
• Results First Posted: 2009-11-10
• Status Verified: 2015-02
• Last Update Submitted: 2015-02-27
• Last Update Posted: 2015-03-18

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 46

Inclusion Criteria

• Subjects who gave written informed consent and who did not show clinical efficacy at Week 6 of the double-blind main study (NCT00291668) [reduction in Crohn's Disease Activity Index (CDAI) score of ≥100 points from Week 0, or remission (CDAI ≤150)]

Exclusion Criteria

• Subjects who experienced aggravation of Crohn's Disease during the double-blind main study (NCT00291668) and required treatment change

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
CZP 400 mg / CZP 200 mg	Certolizumab pegol	Certolizumab pegol (CZP) 400 mg in this extension study / Certolizumab pegol (CZP) 200 mg in double-blind main study (NCT00291668)
CZP 400 mg / CZP 400 mg	Certolizumab pegol	Certolizumab pegol (CZP) 400 mg in this extension study / Certolizumab pegol (CZP) 400 mg in double-blind main study (NCT00291668)
CZP 400 mg / Placebo	Certolizumab pegol	Certolizumab pegol (CZP) 400 mg in this extension study / Placebo in double-blind main study (NCT00291668)

Primary Outcome Measures

Name	Time	Method
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.

Secondary Outcome Measures

Name	Time	Method
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Week 10	Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Week 20	Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Week 32	Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Change From Week 0 in Crohn's Disease Activity Index (CDAI) Score at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease. A decrease in CDAI over time indicates improvement in disease activity.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Week 8	Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Week 12	Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Crohn's Disease Activity Index (CDAI) Responders at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	Crohn's disease activity index (CDAI) responders are subjects achieving either clinical response (a reduction in CDAI score of ≥100 points from Week 0), or remission (CDAI ≤150). CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Week 16	Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Week 24	Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	The Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Percentage of Subjects Achieving Remission at Week 14	Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	The Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	The Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
C-Reactive Protein (CRP) Level at Week 0	Week 0 (relative to the start of the 6-week double-blind main study (N00291668)). 'Week 0' is the Baseline visit in the double-blind main study.
C-Reactive Protein (CRP) Level at Week 12	Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.
Percentage of Subjects Achieving Remission at Week 28	Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Percentage of Subjects Achieving Remission at Week 34	Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving Remission at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	Crohn's disease activity index (CDAI) is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Time to Disease Progression	Week 14 to Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is the visit at which response to re-induction is assessed and 'Week 34' is 26 weeks after the first visit in this extension study.	Time to disease progression is defined as the earliest of: * time to an increase from Week 14 of ≥100 points in Crohn's Disease Activity Index (CDAI) score and CDAI\>175 points for at least 2 consecutive visits,; * time to use of rescue therapy, or,; * time to subject withdrawal from the study.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Global Score at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	The IBDQ Global Score is the sum of 32 responses, each ranging from 0 to 7, thus the Global Score ranges from 0 to 224; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Bowel Domain Sub-Score at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	The IBDQ Bowel Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	The IBDQ Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	The Inflammatory Bowel Disease Questionnaire (IBDQ) Systemic Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
C-Reactive Protein (CRP) Level at Week 20	Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.
C-Reactive Protein (CRP) Level at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.
Ratio of C-Reactive Protein (CRP) Level at Week 12 to CRP Level at Week 0	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 12 divided by the CRP Level at Week 0
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
C-Reactive Protein (CRP) Level at Week 8	Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.
C-Reactive Protein (CRP) Level at Week 14	Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.
C-Reactive Protein (CRP) Level at Week 32	Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.
Ratio of C-Reactive Protein (CRP) Level at Week 24 to CRP Level at Week 0	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 24 divided by the CRP Level at Week 0
Ratio of C-Reactive Protein (CRP) Level at Week 32 to CRP Level at Week 0	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 32 divided by the CRP Level at Week 0
Ratio of C-Reactive Protein (CRP) Level at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals) to CRP Level at Week 0	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Last Visit (Week 34 for completers or the Withdrawal Visit for premature withdrawals)divided by the CRP Level at Week 0
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 10	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
C-Reactive Protein (CRP) Level at Week 16	Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.
C-Reactive Protein (CRP) Level at Week 34	Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.
Ratio of C-Reactive Protein (CRP) Level at Week 10 to CRP Level at Week 0	Week 0 and Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 10 divided by the CRP Level at Week 0
Ratio of C-Reactive Protein (CRP) Level at Week 14 to CRP Level at Week 0	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 14 divided by the CRP Level at Week 0
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	The IBDQ Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	The Inflammatory Bowel Disease Questionnaire (IBDQ) Emotional Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
Change From Week 0 in Inflammatory Bowel Disease Questionnaire (IBDQ) Social Domain Sub-Score at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	The IBDQ Social Domain Sub-Score is the sum of 8 responses, each ranging from 0 to 7, thus the Sub-Score ranges from 0 to 56; a higher score indicating a better quality of life.
C-Reactive Protein (CRP) Level at Week 10	Week 10 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 10' is 2 weeks after the first visit in this extension study.
C-Reactive Protein (CRP) Level at Week 24	Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.
C-Reactive Protein (CRP) Level at Week 28	Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.
Ratio of C-Reactive Protein (CRP) Level at Week 8 to CRP Level at Week 0	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 8 divided by the CRP Level at Week 0
Ratio of C-Reactive Protein (CRP) Level at Week 16 to CRP Level at Week 0	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 16 divided by the CRP Level at Week 0
Ratio of C-Reactive Protein (CRP) Level at Week 34 to CRP Level at Week 0	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 34 divided by the CRP Level at Week 0
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 8	Week 0 and Week 8 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 8' is the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 16	Week 0 and Week 16 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 16' is 8 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Ratio of C-Reactive Protein (CRP) Level at Week 20 to CRP Level at Week 0	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 20 divided by the CRP Level at Week 0
Ratio of C-Reactive Protein (CRP) Level at Week 28 to CRP Level at Week 0	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	The ratio is calculated as the C-Reactive Protein (CRP) Level at Week 28 divided by the CRP Level at Week 0
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 12	Week 0 and Week 12 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 12' is 4 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 24	Week 0 and Week 24 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 24' is 16 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 34	Week 0 and Week 34 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 34' is 26 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 14	Week 0 and Week 14 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 14' is 6 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 20	Week 0 and Week 20 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 20' is 12 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 28	Week 0 and Week 28 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 28' is 20 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Week 32	Week 0 and Week 32 (relative to the start of the 6-week double-blind main study (NCT00291668)). 'Week 32' is 24 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.
Percentage of Subjects Achieving a Reduction in Crohn's Disease Activity Index (CDAI) Score of ≥70 Points From Week 0 at Last Visit (Week 34 for Completers or the Withdrawal Visit for Premature Withdrawals)	Week 0 and Last Visit (Week 34 relative to the start of the 6-week double-blind main study (NCT00291668) for completers or the Withdrawal Visit for premature withdrawals). 'Week 34' is 26 weeks after the first visit in this extension study.	70-point responders are subjects achieving a reduction in Crohn's Disease Activity Index (CDAI) score of ≥70 points from Week 0. CDAI is used to quantify the symptoms of subjects with Crohn's disease. A score of 150 or below indicates remission and a score above 450 indicates extremely severe disease.