A Study of RoActemra/Actemra (Tocilizumab) Given Subcutaneously in Combination With Traditional DMARDs in Patients With Moderate to Severe Active Rheumatoid Arthritis

Percentage of Patients With ACR50 and ACR70 Responses at Week 24

A patient had an ACR50 response if there was at least a 50% improvement in the ACR scores. A patient had an ACR70 response if there was at least a 70% improvement in the ACR scores.

Time frame: Baseline to Week 24

Time to Onset of ACR20, ACR50, and ACR70 Responses

Time to first ACR response was calculated as the number of days between the date of the first ACR response minus the date of the first dose of study drug. Median days are reported.

Time frame: Baseline to Week 24

Change From Baseline in Tender Joint Count (TJC) and Swollen Joint Count (SJC) at Week 24

Joints (28 joints) will be assessed and classified as swollen/not swollen and tender/not tender by pressure and joint manipulation on physical examination.

Time frame: Baseline to Week 24

Change From Baseline in C-reactive Protein at Week 24

Time frame: Baseline to Week 24

Change From Baseline in Erythrocyte Sedimentation Rate at Week 24

Time frame: Baseline to Week 24

Change From Baseline in the Patient's and the Physician's Global Assessment of Disease Activity Visual Analog (VAS) Score

Patients and physicians assessed the patient's disease activity in the previous 24 hours on a 100 mm visual analog scale, where the extreme left end of the line represented "no disease activity" (symptom-free and no arthritis symptoms) and the extreme right end represented "maximum disease activity". Scores ranged from 0 to 100 with a higher score indicating more disease activity. A negative change score indicated less disease activity.

Time frame: Baseline to Week 24

Change From Baseline in the Patient's Pain Visual Analog Score

Patients assessed their pain in the previous 24 hours on a visual analog scale, where the extreme left end of the line represented "no pain" and the extreme right end represented "unbearable pain". Scores ranged from 0 to 100 with a higher score indicating more pain. A negative change score indicated less pain.

Time frame: Baseline to Week 24

Change From Baseline in the Health Assessment Questionnaire-Disability Index (HAQ-DI) Score at Week 24

The HAQ-DI is a questionnaire specific for rheumatoid arthritis and consists of 20 questions referring to 8 domains: Dressing/grooming, arising, eating, walking, hygiene, reach, grip, and activities. Patients completed the questionnaire by answering the 20 questions on a scale of 0 (without difficulty) to 3 (unable to do). The total score ranges from 0 (no disability) to 3 (completely disabled). A negative change score indicates improvement.

Time frame: Baseline to Week 24

Percentage of Patients With an Improvement of ≥ 0.3 Units From Baseline in the HAQ-DI Score at Week 24

The HAQ-DI is a questionnaire specific for rheumatoid arthritis and consists of 20 questions referring to 8 domains: Dressing/grooming, arising, eating, walking, hygiene, reach, grip, and activities. Patients completed the questionnaire by answering the 20 questions on a scale of 0 (without difficulty) to 3 (unable to do). The total score ranges from 0 (no disability) to 3 (completely disabled). A negative change score indicates improvement.

Time frame: Baseline to Week 24

Change From Baseline in Disease Activity Score 28 (DAS28) at Week 24

The DAS28 is a combined index for measuring disease activity in rheumatic arthritis (RA) and includes swollen and tender joint counts, erythrocyte sedimentation rate (ESR), and general health (GH) status. The index is calculated with the following formula: DAS28 = (0.56 × √(TJC28)) + (0.28 × √(SJC28)) + (0.7 × log(ESR)) + (0.014 × GH), where TJC28 = tender joint count and SJC28 = swollen joint count, each on 28 joints. GH = a patient's global assessment of disease activity in the previous 24 hours on a 100 mm visual analog scale (left end = no disease activity \[symptom-free and no arthritis symptoms\], right end = maximum disease activity \[maximum arthritis disease activity\]). When ESR equaled 0 mm/hr, it was set to 1 mm/hr. The DAS28 scale ranges from 0 to 10, where higher scores represent higher disease activity. A negative change score indicates improvement.

Time frame: Baseline to Week 24

Percentage of Patients With a DAS28 Score ≤ 3.2 (DAS28 Low Disease Activity) at Week 24

The DAS28 is a combined index for measuring disease activity in rheumatic arthritis (RA) and includes swollen and tender joint counts, erythrocyte sedimentation rate (ESR), and general health (GH) status. The index is calculated with the following formula: DAS28 = (0.56 × √(TJC28)) + (0.28 × √(SJC28)) + (0.7 × log(ESR)) + (0.014 × GH), where TJC28 = tender joint count and SJC28 = swollen joint count, each on 28 joints. GH = a patient's global assessment of disease activity in the previous 24 hours on a 100 mm visual analog scale (left end = no disease activity \[symptom-free and no arthritis symptoms\], right end = maximum disease activity \[maximum arthritis disease activity\]). When ESR equaled 0 mm/hr, it was set to 1 mm/hr. The DAS28 scale ranges from 0 to 10, where higher scores represent higher disease activity. A negative change score indicates improvement.

Time frame: Baseline to Week 24

Percentage of Patients With a DAS28 Score < 2.6 (DAS28 Remission) at Week 24

The DAS28 is a combined index for measuring disease activity in rheumatic arthritis (RA) and includes swollen and tender joint counts, erythrocyte sedimentation rate (ESR), and general health (GH) status. The index is calculated with the following formula: DAS28 = (0.56 × √(TJC28)) + (0.28 × √(SJC28)) + (0.7 × log(ESR)) + (0.014 × GH), where TJC28 = tender joint count and SJC28 = swollen joint count, each on 28 joints. GH = a patient's global assessment of disease activity in the previous 24 hours on a 100 mm visual analog scale (left end = no disease activity \[symptom-free and no arthritis symptoms\], right end = maximum disease activity \[maximum arthritis disease activity\]). When ESR equaled 0 mm/hr, it was set to 1 mm/hr. The DAS28 scale ranges from 0 to 10, where higher scores represent higher disease activity. A negative change score indicates improvement.

Time frame: Week 24

Percentage of Patients With Good, Moderate, or no European League Against Rheumatism (EULAR) Responses at Week 24

Change of the Disease Activity Score 28 score from baseline was used to determine EULAR responses of good, moderate, or no response. For a post-baseline score ≤ 3.2, a change from baseline of \< -1.2 was a good response, \< -0.6 to ≥ -1.2 was a moderate response, and ≥ -0.6 was no response. For a post-baseline score \> 3.2 to ≤ 5.1, a change from baseline of \< -0.6 was a moderate response and ≥ -0.6 was no response. For a post-baseline score \> 5.1, a change from baseline \< -1.2 was a moderate response and ≥ -1.2 was no response. A good response could not be achieved for post-baseline scores \> 3.2.

Time frame: Baseline to Week 24

Change From Baseline in the Van Der Heijde Modified Sharp Radiographic Score at Week 24

The degree of joint damage was assessed using the van der Heijde modified total Sharp score (mTSS). The methodology quantifies the extent of bone erosions for 44 joints and joint space narrowing (JSN) for 42 joints, with higher scores representing greater damage. The independent read of X-ray images was performed by 2 primary readers. In case of discrepancy between the 2 primary readers, an adjudicator was involved. The mTSS can range from 0 to 448 with a higher score indicating more joint damage. A negative change score indicates improvement.

Time frame: Baseline to Week 24

Change From Baseline in the Physical and Mental Component Scores of the Short Form 36 (SF-36) Health Survey at Week 24

The SF-36 Health Survey uses patient-reported symptoms on 8 subscales to assess health-related quality of life (HRQoL). The Physical Component Summary (PCS) score summarizes the subscales Physical Functioning, Role-Physical, Bodily Pain, and General Health. The Mental Component Summary (MCS) score summarizes the subscales Vitality, Social Functioning, Role-Emotional, and Mental Health. Each score was scaled from 0 to 100 with a higher score indicating better HRQoL. A positive change score indicates an improvement in HRQoL.

Time frame: Baseline to Week 24

Change From Baseline in Hemoglobin at Week 24

Time frame: Baseline to Week 24