Study to Evaluate the Safety and Efficacy of Adalimumab in Chinese Subjects With Moderate to Severe Crohn's Disease

Study Overview
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Brief Summary
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This study will evaluate the efficacy and safety of adalimumab induction and maintenance treatment in subjects with moderately to severely active Crohn's disease in China.

Official Title
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A Multicenter, Randomized, Double-Blind, Placebo Controlled Study to Evaluate the Efficacy and Safety of Adalimumab for the Induction and Maintenance of Clinical Remission in Chinese Patients With Moderately to Severely Active Crohn's Disease and Elevated High-Sensitivity C-reactive Protein

Conditions
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Crohn's Disease

Intervention / Treatment
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* Biological: adalimumab
* Other: placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subjects of Chinese descent with full Chinese parentage. Diagnosis of Crohn's disease (CD) for at least 3 months prior to Week 0. Crohn's Disease Activity Index (CDAI) greater than or equal to 220 and less than or equal to 450 despite treatment with oral corticosteroids and/or immunosuppressants. Subject has a negative Tuberculosis (TB) Screening Assessment. Subject has elevated high sensitivity C-reactive protein (hs-CRP) during the Screening Period. Exclusion Criteria: Subject with ulcerative colitis or indeterminate colitis. Subject who has had a surgical bowel resection within the past 6 months or who is planning any resection at any time point in the future. Subject with an ostomy or ileoanal pouch. Subject who has short bowel syndrome. Subject with symptomatic known obstructive strictures. Subject with an internal or external fistula (with the exception of an anal fistula without abscess). Active, or chronic or recurring infections, or active tuberculosis.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Placebo Induction Regimen<br>Double-blind period (Weeks 0-8): Placebo at Weeks 0 and 2, followed by adalimumab 160 mg at Week 4, 80 mg at Week 6. Open label period: adalimumab 40 mg every other week (eow) from Week 8 through last dose at Week 24. | Biological: adalimumab<br>* subcutaneous injections of adalimumab<br>* Other names: Humira;Other: placebo<br>* subcutaneous injections of placebo<br>|
| Experimental: Adalimumab Induction Regimen<br>Double-blind period (Weeks 0-8): adalimumab 160 mg at Weeks 0 and 80 mg at Week 2, followed by adalimumab 40 mg at Week 4 and Week 6. Open label period: adalimumab 40 mg eow from Week 8 through last dose at Week 24. | Biological: adalimumab<br>* subcutaneous injections of adalimumab<br>* Other names: Humira;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) at Week 4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 4 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants Who Achieved Clinical Remission at Week 26 (CDAI < 150) in Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) at Week 8 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 26 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) Plus a Reduction in Hs-CRP of at Least 50% From Baseline at Week 4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 4 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) Plus a Reduction in Hs-CRP of At Least 50% From Baseline at Week 26 in Participants Who Achieved Clinical Response Plus at Least 30% Reduction in Hs-CRP From Baseline at Week 8 | Clinical response is defined as a decrease in CDAI ≥ 70 Points from Baseline CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 26 | 
| Percentage of Participants Who Discontinued Corticosteroid Use and Achieved Clinical Remission at Week 26 in Participants Who Were Taking Steroids at Baseline and Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) at Week 8 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 26 | 
| Percentage of Participants Who Discontinued Corticosteroid Use and Achieved CDAI < 150 Plus a Reduction in Hs-CRP of ≥ 50% From Baseline (BL) at Week 26 in Participants Taking Steroids at BL and Who Achieved CDAI Decrease and Hs-CRP Reduction at Week 8 | Percentage of participants who discontinued corticosteroid use and achieved clinical remission (CDAI < 150) plus a reduction in hs-CRP of at least 50% from Baseline at Week 26 in participants who were taking steroids at Baseline and who achieved clinical response (decrease in CDAI of ≥ 70 points from Baseline) plus a reduction in hs-CRP of ≥ 30% From Baseline at Week 8. CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 26 | 
| Percentage of Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) at Week 4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 4 | 
| Percentage of Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) Plus a Reduction in Hs-CRP of at Least 30% From Baseline at Week 4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 4 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) and Hs-CRP < 3 mg/L at Week 4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 4 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150), Hs-CRP < 3 mg/L at Week 26 in Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) at Week 8 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 26 | 
| Percentage of Participants Who Achieved Inflammatory Bowel Disease Questionnaire (IBDQ) Remission (IBDQ ≥ 170 Points) at Week 4 | The IBDQ is a self-administered 32-item questionnaire to evaluate quality of life across 4 dimensional scores: bowel, systemic, social and emotional. Responses to each question range from 1 (severe problem) to 7 (normal health). Total IBDQ score is the sum of the responses to the individual IBDQ questions, and ranges from 32 to 224 with higher scores indicating a better quality of life. | Week 4 | 
| Percentage of Participants Who Achieved IBDQ Remission (IBDQ ≥ 170 Points) at Week 26 in Participants With Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) at Week 8 | The IBDQ is a self-administered 32-item questionnaire to evaluate quality of life across 4 dimensional scores: bowel, systemic, social and emotional. Responses to each question range from 1 (severe problem) to 7 (normal health). Total IBDQ score is the sum of the responses to the individual IBDQ questions, and ranges from 32 to 224 with higher scores indicating a better quality of life. CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 26 | 
| Change From Baseline in Fecal Calprotectin Level at Week 4 |  | Baseline, Week 4 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150), Hs-CRP < 3 mg/L and Fecal Calprotectin < 250 μg/g at Week 4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 4 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150), Hs-CRP < 3 mg/L and Fecal Calprotectin < 250 μg/g at Week 26 in Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) at Week 8 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. | Week 26 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) Over Double-Blind Weeks 0-4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. | Weeks 2, 4 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) Over Time (Any Adalimumab Set) | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. (Note: the analysis window for the 'Any Adalimumab Set' is different from that used for the ITT population. For the Any Adalimumab Set, the Baseline Visit date is the date when the first dose of adalimumab was received, and was counted as Day 1 or Week 0.) | Baseline (Week 0 of adalimumab), Weeks 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) Plus A Reduction in Hs-CRP of at Least 50% From Baseline Over Double-Blind Weeks 0-4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. | Weeks 2, 4 | 
| Percentage of Participants Who Achieved Clinical Remission (CDAI < 150) Plus a Reduction in Hs-CRP of at Least 50% From Baseline Over Time (Any Adalimumab Set) | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. (Note: the analysis window for the 'Any Adalimumab Set' is different from that used for the ITT population. For the Any Adalimumab Set, the Baseline Visit date is the date when the first dose of adalimumab was received, and was counted as Day 1 or Week 0.) | Weeks 2, 4, 6, 8, 12, 16, 20, 26 | 
| Percentage of Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) Over Double-Blind Weeks 0-4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. | Weeks 2, 4 | 
| Percentage of Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) Over Time (Any Adalimumab Set) | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. (Note: the analysis window for the 'Any Adalimumab Set' is different from that used for the ITT population. For the Any Adalimumab Set, the Baseline Visit date is the date when the first dose of adalimumab was received, and was counted as Day 1 or Week 0.) | Weeks 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26 | 
| Percentage of Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) Plus a Reduction in Hs-CRP of at Least 30% From Baseline Over Double-Blind Weeks 0-4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. | Weeks 2, 4 | 
| Percentage of Participants Who Achieved Clinical Response (Decrease in CDAI ≥ 70 Points From Baseline) Plus a Reduction in Hs-CRP of at Least 30% From Baseline Over Time (Any Adalimumab Set) | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. (Note: the analysis window for the 'Any Adalimumab Set' is different from that used for the ITT population. For the Any Adalimumab Set, the Baseline Visit date is the date when the first dose of adalimumab was received, and was counted as Day 1 or Week 0.) | Weeks 2, 4, 6, 8, 12, 16, 20, 26 | 
| Change From Baseline in CDAI Over Double-Blind Weeks 0-4 | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. | Baseline, Weeks 2, 4 | 
| Change From Baseline in CDAI Over Time (Any Adalimumab Set) | CDAI is used to assess the symptoms of participants with Crohn's Disease. Scores generally range from 0 to 600, where remission of Crohn's disease is defined as CDAI < 150, and very severe disease is defined as CDAI > 450. The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. (Note: the analysis window for the 'Any Adalimumab Set' is different from that used for the ITT population. For the Any Adalimumab Set, the Baseline Visit date is the date when the first dose of adalimumab was received, and was counted as Day 1 or Week 0.) | Baseline (Week 0 of adalimumab), Weeks 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26 | 
| Change From Baseline in Hs-CRP Level Over Double-Blind Weeks 0-4 | The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. | Baseline, Weeks 2, 4 | 
| Change From Baseline in Hs-CRP Level Over Time (Any Adalimumab Set) | The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. (Note: the analysis window for the 'Any Adalimumab Set' is different from that used for the ITT population. For the Any Adalimumab Set, the Baseline Visit date is the date when the first dose of adalimumab was received, and was counted as Day 1 or Week 0.) | Baseline (Week 0 of adalimumab), Weeks 2, 4, 6, 8, 12, 16 20, 26 | 
| Change From Baseline in Fecal Calprotectin Level Over Time (Any Adalimumab Set) | The analysis over time was performed for the DB placebo-controlled period (Week 0 to Week 4), with comparisons between active treatment and placebo groups. The analysis over time was also performed for Any Adalimumab set (the entire study on or after the first dose of adalimumab), with only summary statistics for adalimumab treatment. | Baseline (Week 0 of adalimumab), Weeks 4, 8, 26 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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China, Tumor necrosis factor (TNF)-alpha, Biologic