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A Long-Term Extension Study of WA22762 and NA25220 of Subcutaneous (SC) Tocilizumab (TCZ) in Moderate to Severe Rheumatoid Arthritis (RA)

A Multicenter Open-Label, Long-Term Extension Study of WA22762 and NA25220 to Evaluate Safety and Efficacy of Subcutaneous Tocilizumab in Patients With Moderate to Severe Rheumatoid Arthritis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01662063
Enrollment
218
Registered
2012-08-10
Start date
2012-08-31
Completion date
2014-06-30
Last updated
2016-10-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rheumatoid Arthritis

Brief summary

This open-label extension study will evaluate the long-term safety and efficacy of SC TCZ in participants with moderate to severe RA who have completed the 97-week WA22762 (NCT01194414) or 96-week NA25220 (NCT01232569) core studies on SC or intravenous (IV) TCZ. Participants will receive TCZ 162 milligrams (mg) SC every week (QW) or every 2 weeks (Q2W) for up to 96 weeks.

Interventions

DRUGTocilizumab

TCZ will be given as 162 mg SC QW or Q2W for up to 96 weeks.

Sponsors

Genentech, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Completed the 97-week WA22762 (NCT01194414) or 96-week NA25220 (NCT01232569) core study on SC or IV TCZ and, based on the Investigator's judgment, may continue to benefit from TCZ treatment in this study investigating the SC formulation * Receiving treatment on an outpatient basis * Females of childbearing potential and males with female partners of childbearing potential must agree to use reliable means of contraception as defined by protocol

Exclusion criteria

* Premature withdrawal from WA22762 (NCT01194414) or NA25220 (NCT01232569) core studies for any reason * History of severe allergic or anaphylactic reactions to human, humanized, or murine monoclonal antibodies * Evidence of serious uncontrolled concomitant disease or disorder * Known active current or history of recurrent bacterial, viral, fungal, mycobacterial, or other infections * Any major episode of infection requiring hospitalization or treatment with IV antibiotics within 4 weeks of Screening or oral antibiotics within 2 weeks of Screening * History of or currently active primary or secondary immunodeficiency * Oral corticosteroids at greater than (\>) 10 mg per day prednisone or equivalent, or non-steroidal anti-inflammatory drugs (NSAIDs) above the maximum recommended dose * Intra-articular or parenteral corticosteroids within 4 weeks prior to Baseline * Treatment with any investigational or commercially available biologic disease-modifying anti-rheumatic drug (DMARD) other than TCZ at any time between completion of the core study WA22762 (NCT01194414) or NA25220 (NCT01232569) and enrollment in the long-term extension study * Pregnant or breastfeeding women * History of alcohol, drug, or chemical abuse within 1 year prior to Screening

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With at Least One Serious Adverse Event (SAE)From Baseline to 8 weeks after last dose; assessed continuously during treatment (up to 96 weeks) and up to 8 weeks after last dose (up to 2 years overall)Adverse events (AEs) were monitored throughout treatment. AEs were defined as any untoward medical occurrence in a participant who received study drug regardless of causality. SAEs were defined as AEs that were fatal or life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, manifested as a congenital anomaly/birth defect, were medically significant, or required intervention to prevent any of the aforementioned outcomes. The number of participants with at least one SAE regardless of treatment relationship was reported.
Percentage of Participants With at Least One SAEFrom Baseline to 8 weeks after last dose; assessed continuously during treatment (up to 96 weeks) and up to 8 weeks after last dose (up to 2 years overall)AEs were monitored throughout treatment. AEs were defined as any untoward medical occurrence in a participant who received study drug regardless of causality. SAEs were defined as AEs that were fatal or life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, manifested as a congenital anomaly/birth defect, were medically significant, or required intervention to prevent any of the aforementioned outcomes. The percentage of participants with at least one SAE regardless of treatment relationship was calculated.
Percentage of Participants With a Positive Anti-TCZ Antibody Assay at Any TimepointFrom Baseline to 8 weeks after last dose; assessed at Baseline; Weeks 12, 24, 36, 48, 60, 72, 84, 96; and up to 8 weeks after last dose (up to 2 years overall)Blood samples were collected to test for the presence of antibodies to TCZ. The percentage of participants with a positive anti-TCZ antibody assay was calculated.
Percentage of Participants With a Positive Anti-TCZ Antibody Assay at BaselineBaselineBlood samples were collected to test for the presence of antibodies to TCZ. The percentage of participants with a positive anti-TCZ antibody assay was calculated.
Percentage of Participants With a Positive Anti-TCZ Antibody Assay Post-BaselineFrom Week 12 up to 8 weeks after last dose; assessed at Weeks 12, 24, 36, 48, 60, 72, 84, 96; and up to 8 weeks after last dose (up to 2 years overall)Blood samples were collected to test for the presence of antibodies to TCZ. The percentage of participants with a positive anti-TCZ antibody assay was calculated. Positive assay results obtained post-Baseline were further investigated via confirmation assay and a neutralization assay.

Secondary

MeasureTime frameDescription
Simplified Disease Activity Index (SDAI) ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84The SDAI was calculated using the SJC, TJC, Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores, and high-sensitivity C-reactive protein (hsCRP) level. For the SDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The SDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician) + hsCRP. Because the formula includes hsCRP, scores may theoretically range from 0 to infinity, where higher scores indicate increased disease activity. However, based upon normal hsCRP level within 1 milligram per deciliter (mg/dL), scores would be expected to fall within less than or equal to (≤) 77 points.
Change From Baseline in SDAI ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84The SDAI was calculated using the SJC, TJC, Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores, and hsCRP level. For the SDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The SDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician) + hsCRP. Because the formula includes hsCRP, scores may theoretically range from 0 to infinity, where higher scores indicate increased disease activity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in disease activity.
Tender Joint Count (TJC) ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84Sixty-eight joints were assessed and classified as tender/not tender by pressure and joint manipulation on physical examination. The number of tender joints was taken as the TJC score, where values may range from 0 to 68.
Change From Baseline in TJC ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84Sixty-eight joints were assessed and classified as tender/not tender by pressure and joint manipulation on physical examination. The number of tender joints was taken as the TJC score, where values may range from 0 to 68. The change from Baseline to each visit was calculated, where positive changes represent an increase in number of tender joints.
Swollen Joint Count (SJC) ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84Sixty-six joints were assessed and classified as swollen/not swollen by pressure and joint manipulation on physical examination. The number of swollen joints was taken as the SJC score, where values may range from 0 to 66.
Change From Baseline in SJC ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84Sixty-six joints were assessed and classified as swollen/not swollen by pressure and joint manipulation on physical examination. The number of swollen joints was taken as the SJC score, where values may range from 0 to 66. The change from Baseline to each visit was calculated, where positive changes represent an increase in number of swollen joints.
Number of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline.
Percentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline.
Percentage of Reasons Given for DMARD Dose Reduction or InterruptionFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline. The reasons for any DMARD dose reduction/interruption ≤60 days were reported. More than one reason could be given for a single change in DMARD therapy, and each participant could also change DMARD therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.
Percentage of Reasons Given for DMARD DiscontinuationFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline. The reasons for any DMARD discontinuation were reported. More than one reason could be given for a single change in DMARD therapy, and each participant could also change DMARD therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.
Number of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ.
Percentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ.
Percentage of Reasons Given for CCS Dose ReductionFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ. The reasons for any CCS dose reduction were reported. More than one reason could be given for a single change in CCS therapy, and each participant could also change CCS therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.
Percentage of Reasons Given for CCS Dose InterruptionFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ. The reasons for any CCS dose interruption ≤14 days were reported. More than one reason could be given for a single change in CCS therapy, and each participant could also change CCS therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.
Percentage of Reasons Given for CCS DiscontinuationFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ. The reasons for any CCS discontinuation \>14 days were reported. More than one reason could be given for a single change in CCS therapy, and each participant could also change CCS therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.
Percentage of Participants Who Correctly Administered All SC TCZ DosesFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Compliance was assessed using drug dispensing logs, diary cards kept by the participant, and return records, as reviewed by the Investigator at regular visits. Total compliance up to the end of treatment was defined as the percentage of participants who correctly administered all scheduled doses of SC TCZ. Correct administration was defined as proper injection technique, injection of the correct amount (162 mg), device not left at room temperature for greater than (\>) 8 hours, and absence of other medication errors.
Percentage of Participants Who Switched From the QW Regimen and Remained on the Q2W RegimenFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. The percentage of participants who switched from the QW to the Q2W regimen and did not return to the QW regimen was calculated.
Number of Participants Who Returned to the QW Regimen After Switching to the Q2W RegimenFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. The number of participants who switched from the QW to the Q2W regimen and thereafter returned to the QW regimen was reported with the reason for returning to the QW regimen.
Time to Return to the QW Regimen After Switching to the Q2W RegimenFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. Time to return was defined as the time between switching to the Q2W regimen and returning to the previous QW regimen.
Global Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84The Global Assessment of Disease Activity was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no disease activity) to 100 mm (maximum disease activity), with higher scores representing an increase in perceived symptoms.
Change From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84The Global Assessment of Disease Activity was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no disease activity) to 100 mm (maximum disease activity), with higher scores representing an increase in perceived symptoms. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in perceived disease activity.
Global Assessment of Pain by the Participant According to VAS ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84The Global Assessment of Pain was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no pain) to 100 mm (unbearable pain), with higher scores representing an increase in pain.
Change From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84The Global Assessment of Pain was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no pain) to 100 mm (unbearable pain), with higher scores representing an increase in pain. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in pain.
Heath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84The Stanford HAQ-DI was calculated as the average of 20 questions, each scored from 0 (no difficulty) to 3 (unable to do). The questionnaire included 8 component sets: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and common activities. Overall scores may range from 0 to 3, with higher scores representing increased disability.
Change From Baseline in HAQ-DI ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84The Stanford HAQ-DI was calculated as the average of 20 questions, each scored from 0 (no difficulty) to 3 (unable to do). The questionnaire included 8 component sets: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and common activities. Overall scores may range from 0 to 3, with higher scores representing increased disability. The change from Baseline to each visit was calculated, where positive changes represent an increased need for assistance with daily activities.
Percentage of Participants With HAQ-DI Score <0.5Baseline and Weeks 12, 24, 36, 48, 60, 72, 84The Stanford HAQ-DI was calculated as the average of 20 questions, each scored from 0 (no difficulty) to 3 (unable to do). The questionnaire included 8 component sets: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and common activities. Overall scores may range from 0 to 3, with higher scores representing increased disability. The percentage of participants achieving a score \<0.5 was calculated at each visit.
Number of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline and Weeks 12, 24, 36, 48, 60, 72, 84Low disease activity was defined as DAS28 ≤3.2, SDAI ≤11, or CDAI ≤10. For each formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. The CDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician), with potential scores from 0 to 76. For all instruments, higher scores indicate increased disease activity. The number of participants who met criteria for low disease activity was reported at each visit.
Percentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline and Weeks 12, 24, 36, 48, 60, 72, 84Low disease activity was defined as DAS28 ≤3.2, SDAI ≤11, or CDAI ≤10. For each formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. The CDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician), with potential scores from 0 to 76. For all instruments, higher scores indicate increased disease activity. The percentage of participants who met criteria for low disease activity was calculated at each visit.
Number of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline and Weeks 12, 24, 36, 48, 60, 72, 84Remission was defined as DAS28 \<2.6, SDAI ≤3.3, or meeting all Boolean criteria (28-count SJC and TJC ≤1, VAS ≤10 mm, and hsCRP ≤1 mg/dL). For DAS28 and SDAI formulas, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. For these instruments, higher scores indicate increased disease activity. The number of participants who met criteria for remission was reported at each visit.
Percentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline and Weeks 12, 24, 36, 48, 60, 72, 84Remission was defined as DAS28 \<2.6, SDAI ≤3.3, or meeting all Boolean criteria (28-count SJC and TJC ≤1, VAS ≤10 mm, and hsCRP ≤1 mg/dL). For DAS28 and SDAI formulas, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. For these instruments, higher scores indicate increased disease activity. The percentage of participants who met criteria for remission was calculated at each visit.
Number of Participants Who Switched From the QW Regimen and Remained on the Q2W RegimenFrom Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. The number of participants who switched from the QW to the Q2W regimen and did not return to the QW regimen was reported.
Disease Activity Score Based on 28 Joints (DAS28) ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84The DAS28 was calculated using the Swollen Joint Count (SJC), Tender Joint Count (TJC), erythrocyte sedimentation rate (ESR), and Global Assessment of Disease Activity by the participant according to Visual Analog Scale (VAS) score. For the DAS28 formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-millimeter (mm) scale to a 10-point score. The DAS28 was calculated as (0.56 multiplied by \[×\] square root of TJC) + (0.28 × square root of SJC) + (0.7 × log natural \[ln\] ESR) + (0.014 × VAS). Scores may range from 0 to 10, where higher scores indicate increased disease activity.
Change From Baseline in DAS28 ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84The DAS28 was calculated using the SJC, TJC, ESR, and Global Assessment of Disease Activity by the participant according to VAS score. For the DAS28 formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS). Scores may range from 0 to 10, where higher scores indicate increased disease activity. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in disease activity.
Clinical Disease Activity Index (CDAI) ScoreBaseline and Weeks 12, 24, 36, 48, 60, 72, 84The CDAI was calculated using the SJC, TJC, and Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores. For the CDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The CDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician). Scores may range from 0 to 76, where higher scores indicate increased disease activity.
Change From Baseline in CDAI ScoreBaseline to Weeks 12, 24, 36, 48, 60, 72, 84The CDAI was calculated using the SJC, TJC, and Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores. For the CDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The CDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician). Scores may range from 0 to 76, where higher scores indicate increased disease activity. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in disease activity.

Countries

Puerto Rico, United States

Participant flow

Participants by arm

ArmCount
SC TCZ Q2W
Participants with moderate to severe RA who completed treatment with SC or IV TCZ in one of the core studies WA22762 (NCT01194414) or NA25220 (NCT01232569) received treatment in this LTE study for an additional 96 weeks. Participants who received SC TCZ continued at their same dosage of SC TCZ 162 mg Q2W.
44
SC TCZ QW
Participants with moderate to severe RA who completed treatment with SC or IV TCZ in one of the core studies WA22762 (NCT01194414) or NA25220 (NCT01232569) received treatment in this LTE study for an additional 96 weeks. Participants who received IV TCZ in the previous trial were switched to SC TCZ 162 mg QW, and those who received SC TCZ continued at their same dosage of SC TCZ 162 mg QW.
173
Total217

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event or Intercurrent Illness1120
Overall StudyLack of Efficacy160
Overall StudyLost to Follow-up040
Overall StudyOther010
Overall StudyPhysician Decision020
Overall StudyProtocol Violation100
Overall StudyWithdrawal by Subject241

Baseline characteristics

CharacteristicSC TCZ Q2WSC TCZ QWTotal
Age, Continuous59.7 years
STANDARD_DEVIATION 10.18
58.1 years
STANDARD_DEVIATION 10.38
58.4 years
STANDARD_DEVIATION 10.33
Sex: Female, Male
Female
33 Participants133 Participants166 Participants
Sex: Female, Male
Male
11 Participants40 Participants51 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
22 / 44102 / 173
serious
Total, serious adverse events
4 / 4419 / 173

Outcome results

Primary

Number of Participants With at Least One Serious Adverse Event (SAE)

Adverse events (AEs) were monitored throughout treatment. AEs were defined as any untoward medical occurrence in a participant who received study drug regardless of causality. SAEs were defined as AEs that were fatal or life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, manifested as a congenital anomaly/birth defect, were medically significant, or required intervention to prevent any of the aforementioned outcomes. The number of participants with at least one SAE regardless of treatment relationship was reported.

Time frame: From Baseline to 8 weeks after last dose; assessed continuously during treatment (up to 96 weeks) and up to 8 weeks after last dose (up to 2 years overall)

Population: Safety Population.

ArmMeasureValue (NUMBER)
SC TCZ Q2WNumber of Participants With at Least One Serious Adverse Event (SAE)4 participants
SC TCZ QWNumber of Participants With at Least One Serious Adverse Event (SAE)19 participants
Primary

Percentage of Participants With a Positive Anti-TCZ Antibody Assay at Any Timepoint

Blood samples were collected to test for the presence of antibodies to TCZ. The percentage of participants with a positive anti-TCZ antibody assay was calculated.

Time frame: From Baseline to 8 weeks after last dose; assessed at Baseline; Weeks 12, 24, 36, 48, 60, 72, 84, 96; and up to 8 weeks after last dose (up to 2 years overall)

Population: Safety Population; only participants with a valid assay at Screening were included.

ArmMeasureValue (NUMBER)
SC TCZ Q2WPercentage of Participants With a Positive Anti-TCZ Antibody Assay at Any Timepoint4.5 percentage of participants
SC TCZ QWPercentage of Participants With a Positive Anti-TCZ Antibody Assay at Any Timepoint7.8 percentage of participants
Primary

Percentage of Participants With a Positive Anti-TCZ Antibody Assay at Baseline

Blood samples were collected to test for the presence of antibodies to TCZ. The percentage of participants with a positive anti-TCZ antibody assay was calculated.

Time frame: Baseline

Population: Safety Population; only participants with a valid assay at Screening were included.

ArmMeasureValue (NUMBER)
SC TCZ Q2WPercentage of Participants With a Positive Anti-TCZ Antibody Assay at Baseline2.3 percentage of participants
SC TCZ QWPercentage of Participants With a Positive Anti-TCZ Antibody Assay at Baseline4.8 percentage of participants
Primary

Percentage of Participants With a Positive Anti-TCZ Antibody Assay Post-Baseline

Blood samples were collected to test for the presence of antibodies to TCZ. The percentage of participants with a positive anti-TCZ antibody assay was calculated. Positive assay results obtained post-Baseline were further investigated via confirmation assay and a neutralization assay.

Time frame: From Week 12 up to 8 weeks after last dose; assessed at Weeks 12, 24, 36, 48, 60, 72, 84, 96; and up to 8 weeks after last dose (up to 2 years overall)

Population: Safety Population; only participants with a valid assay at Screening were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Participants With a Positive Anti-TCZ Antibody Assay Post-BaselinePositive Anti-TCZ Assay2.3 percentage of participants
SC TCZ Q2WPercentage of Participants With a Positive Anti-TCZ Antibody Assay Post-BaselinePositive Confirmation Assay0 percentage of participants
SC TCZ Q2WPercentage of Participants With a Positive Anti-TCZ Antibody Assay Post-BaselinePositive Neutralizing Assay0 percentage of participants
SC TCZ QWPercentage of Participants With a Positive Anti-TCZ Antibody Assay Post-BaselinePositive Anti-TCZ Assay3.0 percentage of participants
SC TCZ QWPercentage of Participants With a Positive Anti-TCZ Antibody Assay Post-BaselinePositive Confirmation Assay0.6 percentage of participants
SC TCZ QWPercentage of Participants With a Positive Anti-TCZ Antibody Assay Post-BaselinePositive Neutralizing Assay0.6 percentage of participants
Primary

Percentage of Participants With at Least One SAE

AEs were monitored throughout treatment. AEs were defined as any untoward medical occurrence in a participant who received study drug regardless of causality. SAEs were defined as AEs that were fatal or life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, manifested as a congenital anomaly/birth defect, were medically significant, or required intervention to prevent any of the aforementioned outcomes. The percentage of participants with at least one SAE regardless of treatment relationship was calculated.

Time frame: From Baseline to 8 weeks after last dose; assessed continuously during treatment (up to 96 weeks) and up to 8 weeks after last dose (up to 2 years overall)

Population: Safety Population.

ArmMeasureValue (NUMBER)
SC TCZ Q2WPercentage of Participants With at Least One SAE9.1 percentage of participants
SC TCZ QWPercentage of Participants With at Least One SAE11.0 percentage of participants
Secondary

Change From Baseline in CDAI Score

The CDAI was calculated using the SJC, TJC, and Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores. For the CDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The CDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician). Scores may range from 0 to 76, where higher scores indicate increased disease activity. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in disease activity.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in CDAI ScoreWeek 36 (n=39,159)-7.00 units on a scaleStandard Deviation 12.266
SC TCZ Q2WChange From Baseline in CDAI ScoreWeek 60 (n=2,92)-14.05 units on a scaleStandard Deviation 20.294
SC TCZ Q2WChange From Baseline in CDAI ScoreWeek 24 (n=42,166)-5.23 units on a scaleStandard Deviation 14.134
SC TCZ Q2WChange From Baseline in CDAI ScoreWeek 72 (n=1,52)-16.20 units on a scale
SC TCZ Q2WChange From Baseline in CDAI ScoreWeek 48 (n=18,140)-6.63 units on a scaleStandard Deviation 13.479
SC TCZ Q2WChange From Baseline in CDAI ScoreWeek 84 (n=0,11)NA units on a scale
SC TCZ Q2WChange From Baseline in CDAI ScoreWeek 12 (n=44,172)-6.11 units on a scaleStandard Deviation 13.219
SC TCZ QWChange From Baseline in CDAI ScoreWeek 84 (n=0,11)-10.01 units on a scaleStandard Deviation 18.58
SC TCZ QWChange From Baseline in CDAI ScoreWeek 12 (n=44,172)-5.81 units on a scaleStandard Deviation 12.01
SC TCZ QWChange From Baseline in CDAI ScoreWeek 24 (n=42,166)-5.47 units on a scaleStandard Deviation 13.754
SC TCZ QWChange From Baseline in CDAI ScoreWeek 36 (n=39,159)-6.63 units on a scaleStandard Deviation 10.676
SC TCZ QWChange From Baseline in CDAI ScoreWeek 48 (n=18,140)-6.70 units on a scaleStandard Deviation 12.328
SC TCZ QWChange From Baseline in CDAI ScoreWeek 60 (n=2,92)-7.05 units on a scaleStandard Deviation 11.065
SC TCZ QWChange From Baseline in CDAI ScoreWeek 72 (n=1,52)-6.31 units on a scaleStandard Deviation 12.999
Secondary

Change From Baseline in DAS28 Score

The DAS28 was calculated using the SJC, TJC, ESR, and Global Assessment of Disease Activity by the participant according to VAS score. For the DAS28 formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS). Scores may range from 0 to 10, where higher scores indicate increased disease activity. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in disease activity.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in DAS28 ScoreWeek 36 (n=39,158)-1.51 units on a scaleStandard Deviation 1.312
SC TCZ Q2WChange From Baseline in DAS28 ScoreWeek 60 (n=2,91)0.65 units on a scaleStandard Deviation 1.41
SC TCZ Q2WChange From Baseline in DAS28 ScoreWeek 24 (n=43,167)-1.42 units on a scaleStandard Deviation 1.383
SC TCZ Q2WChange From Baseline in DAS28 ScoreWeek 72 (n=1,52)-0.35 units on a scale
SC TCZ Q2WChange From Baseline in DAS28 ScoreWeek 48 (n=18,140)-1.66 units on a scaleStandard Deviation 1.34
SC TCZ Q2WChange From Baseline in DAS28 ScoreWeek 84 (n=0,10)NA units on a scale
SC TCZ Q2WChange From Baseline in DAS28 ScoreWeek 12 (n=44,171)-1.38 units on a scaleStandard Deviation 1.522
SC TCZ QWChange From Baseline in DAS28 ScoreWeek 84 (n=0,10)-1.57 units on a scaleStandard Deviation 1.312
SC TCZ QWChange From Baseline in DAS28 ScoreWeek 12 (n=44,171)-1.19 units on a scaleStandard Deviation 1.415
SC TCZ QWChange From Baseline in DAS28 ScoreWeek 24 (n=43,167)-1.23 units on a scaleStandard Deviation 1.692
SC TCZ QWChange From Baseline in DAS28 ScoreWeek 36 (n=39,158)-1.29 units on a scaleStandard Deviation 1.429
SC TCZ QWChange From Baseline in DAS28 ScoreWeek 48 (n=18,140)-1.32 units on a scaleStandard Deviation 1.538
SC TCZ QWChange From Baseline in DAS28 ScoreWeek 60 (n=2,91)-1.29 units on a scaleStandard Deviation 1.286
SC TCZ QWChange From Baseline in DAS28 ScoreWeek 72 (n=1,52)-1.53 units on a scaleStandard Deviation 1.435
Secondary

Change From Baseline in Global Assessment of Disease Activity by the Participant According to VAS Score

The Global Assessment of Disease Activity was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no disease activity) to 100 mm (maximum disease activity), with higher scores representing an increase in perceived symptoms. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in perceived disease activity.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 36 (n=39,159)-11.59 mmStandard Deviation 23.736
SC TCZ Q2WChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 60 (n=2,92)11.50 mmStandard Deviation 30.406
SC TCZ Q2WChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 24 (n=43,168)-6.67 mmStandard Deviation 18.977
SC TCZ Q2WChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 72 (n=1,52)19.00 mm
SC TCZ Q2WChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 48 (n=18,141)-5.61 mmStandard Deviation 21.892
SC TCZ Q2WChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 84 (n=0,11)NA mm
SC TCZ Q2WChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 12 (n=44,172)-7.59 mmStandard Deviation 22.689
SC TCZ QWChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 84 (n=0,11)-10.82 mmStandard Deviation 19.778
SC TCZ QWChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 12 (n=44,172)-9.59 mmStandard Deviation 22.348
SC TCZ QWChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 24 (n=43,168)-9.67 mmStandard Deviation 26.26
SC TCZ QWChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 36 (n=39,159)-10.14 mmStandard Deviation 25.338
SC TCZ QWChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 48 (n=18,141)-11.47 mmStandard Deviation 25.839
SC TCZ QWChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 60 (n=2,92)-9.93 mmStandard Deviation 22.992
SC TCZ QWChange From Baseline in Global Assessment of Disease Activity by the Participant According to VAS ScoreWeek 72 (n=1,52)-13.82 mmStandard Deviation 25.779
Secondary

Change From Baseline in Global Assessment of Pain by the Participant According to VAS Score

The Global Assessment of Pain was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no pain) to 100 mm (unbearable pain), with higher scores representing an increase in pain. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in pain.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 36 (n=39,159)-10.62 mmStandard Deviation 22.783
SC TCZ Q2WChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 60 (n=2,92)3.00 mmStandard Deviation 25.456
SC TCZ Q2WChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 24 (n=43,168)-6.63 mmStandard Deviation 20.641
SC TCZ Q2WChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 72 (n=1,52)3.00 mm
SC TCZ Q2WChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 48 (n=18,141)-8.00 mmStandard Deviation 18.166
SC TCZ Q2WChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 84 (n=0,11)NA mm
SC TCZ Q2WChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 12 (n=44,172)-7.59 mmStandard Deviation 22.145
SC TCZ QWChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 84 (n=0,11)-14.64 mmStandard Deviation 20.911
SC TCZ QWChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 12 (n=44,172)-12.27 mmStandard Deviation 21.582
SC TCZ QWChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 24 (n=43,168)-10.76 mmStandard Deviation 24.154
SC TCZ QWChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 36 (n=39,159)-10.91 mmStandard Deviation 22.747
SC TCZ QWChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 48 (n=18,141)-12.91 mmStandard Deviation 24.95
SC TCZ QWChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 60 (n=2,92)-10.07 mmStandard Deviation 22.001
SC TCZ QWChange From Baseline in Global Assessment of Pain by the Participant According to VAS ScoreWeek 72 (n=1,52)-12.47 mmStandard Deviation 23.522
Secondary

Change From Baseline in HAQ-DI Score

The Stanford HAQ-DI was calculated as the average of 20 questions, each scored from 0 (no difficulty) to 3 (unable to do). The questionnaire included 8 component sets: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and common activities. Overall scores may range from 0 to 3, with higher scores representing increased disability. The change from Baseline to each visit was calculated, where positive changes represent an increased need for assistance with daily activities.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in HAQ-DI ScoreWeek 36 (n=39,159)-0.08 units on a scaleStandard Deviation 0.276
SC TCZ Q2WChange From Baseline in HAQ-DI ScoreWeek 60 (n=2,92)0.56 units on a scaleStandard Deviation 0.795
SC TCZ Q2WChange From Baseline in HAQ-DI ScoreWeek 24 (n=43,167)-0.01 units on a scaleStandard Deviation 0.272
SC TCZ Q2WChange From Baseline in HAQ-DI ScoreWeek 72 (n=1,52)0.88 units on a scale
SC TCZ Q2WChange From Baseline in HAQ-DI ScoreWeek 48 (n=18,141)-0.01 units on a scaleStandard Deviation 0.237
SC TCZ Q2WChange From Baseline in HAQ-DI ScoreWeek 84 (n=0,11)NA units on a scale
SC TCZ Q2WChange From Baseline in HAQ-DI ScoreWeek 12 (n=44,172)-0.02 units on a scaleStandard Deviation 0.254
SC TCZ QWChange From Baseline in HAQ-DI ScoreWeek 84 (n=0,11)-0.07 units on a scaleStandard Deviation 0.397
SC TCZ QWChange From Baseline in HAQ-DI ScoreWeek 12 (n=44,172)-0.10 units on a scaleStandard Deviation 0.339
SC TCZ QWChange From Baseline in HAQ-DI ScoreWeek 24 (n=43,167)-0.11 units on a scaleStandard Deviation 0.372
SC TCZ QWChange From Baseline in HAQ-DI ScoreWeek 36 (n=39,159)-0.09 units on a scaleStandard Deviation 0.394
SC TCZ QWChange From Baseline in HAQ-DI ScoreWeek 48 (n=18,141)-0.14 units on a scaleStandard Deviation 0.39
SC TCZ QWChange From Baseline in HAQ-DI ScoreWeek 60 (n=2,92)-0.08 units on a scaleStandard Deviation 0.394
SC TCZ QWChange From Baseline in HAQ-DI ScoreWeek 72 (n=1,52)-0.06 units on a scaleStandard Deviation 0.42
Secondary

Change From Baseline in SDAI Score

The SDAI was calculated using the SJC, TJC, Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores, and hsCRP level. For the SDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The SDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician) + hsCRP. Because the formula includes hsCRP, scores may theoretically range from 0 to infinity, where higher scores indicate increased disease activity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. The change from Baseline to each visit was calculated, where positive changes represent an increase or worsening in disease activity.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in SDAI ScoreWeek 36 (n=39,157)-7.99 units on a scaleStandard Deviation 12.858
SC TCZ Q2WChange From Baseline in SDAI ScoreWeek 60 (n=2,91)-14.46 units on a scaleStandard Deviation 20.873
SC TCZ Q2WChange From Baseline in SDAI ScoreWeek 24 (n=41,163)-5.71 units on a scaleStandard Deviation 14.217
SC TCZ Q2WChange From Baseline in SDAI ScoreWeek 72 (n=1,52)-17.04 units on a scale
SC TCZ Q2WChange From Baseline in SDAI ScoreWeek 48 (n=18,139)-8.17 units on a scaleStandard Deviation 14.64
SC TCZ Q2WChange From Baseline in SDAI ScoreWeek 84 (n=0,10)NA units on a scale
SC TCZ Q2WChange From Baseline in SDAI ScoreWeek 12 (n=44,169)-7.07 units on a scaleStandard Deviation 13.671
SC TCZ QWChange From Baseline in SDAI ScoreWeek 84 (n=0,10)-9.48 units on a scaleStandard Deviation 19.29
SC TCZ QWChange From Baseline in SDAI ScoreWeek 12 (n=44,169)-7.00 units on a scaleStandard Deviation 12.056
SC TCZ QWChange From Baseline in SDAI ScoreWeek 24 (n=41,163)-6.79 units on a scaleStandard Deviation 13.069
SC TCZ QWChange From Baseline in SDAI ScoreWeek 36 (n=39,157)-7.38 units on a scaleStandard Deviation 10.953
SC TCZ QWChange From Baseline in SDAI ScoreWeek 48 (n=18,139)-7.29 units on a scaleStandard Deviation 12.454
SC TCZ QWChange From Baseline in SDAI ScoreWeek 60 (n=2,91)-7.52 units on a scaleStandard Deviation 10.846
SC TCZ QWChange From Baseline in SDAI ScoreWeek 72 (n=1,52)-7.10 units on a scaleStandard Deviation 13.379
Secondary

Change From Baseline in SJC Score

Sixty-six joints were assessed and classified as swollen/not swollen by pressure and joint manipulation on physical examination. The number of swollen joints was taken as the SJC score, where values may range from 0 to 66. The change from Baseline to each visit was calculated, where positive changes represent an increase in number of swollen joints.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in SJC ScoreWeek 36 (n=39,159)-3.33 swollen jointsStandard Deviation 6.868
SC TCZ Q2WChange From Baseline in SJC ScoreWeek 60 (n=2,92)-8.50 swollen jointsStandard Deviation 12.021
SC TCZ Q2WChange From Baseline in SJC ScoreWeek 24 (n=42,167)-3.45 swollen jointsStandard Deviation 8.434
SC TCZ Q2WChange From Baseline in SJC ScoreWeek 72 (n=1,52)-15.00 swollen joints
SC TCZ Q2WChange From Baseline in SJC ScoreWeek 48 (n=18,141)-6.56 swollen jointsStandard Deviation 9.332
SC TCZ Q2WChange From Baseline in SJC ScoreWeek 84 (n=0,11)NA swollen joints
SC TCZ Q2WChange From Baseline in SJC ScoreWeek 12 (n=44,172)-3.45 swollen jointsStandard Deviation 7.026
SC TCZ QWChange From Baseline in SJC ScoreWeek 84 (n=0,11)-2.64 swollen jointsStandard Deviation 13.493
SC TCZ QWChange From Baseline in SJC ScoreWeek 12 (n=44,172)-3.00 swollen jointsStandard Deviation 8.543
SC TCZ QWChange From Baseline in SJC ScoreWeek 24 (n=42,167)-2.31 swollen jointsStandard Deviation 9.162
SC TCZ QWChange From Baseline in SJC ScoreWeek 36 (n=39,159)-3.89 swollen jointsStandard Deviation 8.134
SC TCZ QWChange From Baseline in SJC ScoreWeek 48 (n=18,141)-3.25 swollen jointsStandard Deviation 9.543
SC TCZ QWChange From Baseline in SJC ScoreWeek 60 (n=2,92)-3.20 swollen jointsStandard Deviation 8.702
SC TCZ QWChange From Baseline in SJC ScoreWeek 72 (n=1,52)-1.15 swollen jointsStandard Deviation 10.114
Secondary

Change From Baseline in TJC Score

Sixty-eight joints were assessed and classified as tender/not tender by pressure and joint manipulation on physical examination. The number of tender joints was taken as the TJC score, where values may range from 0 to 68. The change from Baseline to each visit was calculated, where positive changes represent an increase in number of tender joints.

Time frame: Baseline to Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WChange From Baseline in TJC ScoreWeek 36 (n=39,159)-4.03 tender jointsStandard Deviation 10.559
SC TCZ Q2WChange From Baseline in TJC ScoreWeek 60 (n=2,92)-9.00 tender jointsStandard Deviation 12.728
SC TCZ Q2WChange From Baseline in TJC ScoreWeek 24 (n=42,167)-2.69 tender jointsStandard Deviation 12.546
SC TCZ Q2WChange From Baseline in TJC ScoreWeek 72 (n=1,52)-3.00 tender joints
SC TCZ Q2WChange From Baseline in TJC ScoreWeek 48 (n=18,141)-4.00 tender jointsStandard Deviation 12.902
SC TCZ Q2WChange From Baseline in TJC ScoreWeek 84 (n=0,11)NA tender joints
SC TCZ Q2WChange From Baseline in TJC ScoreWeek 12 (n=44,172)-3.98 tender jointsStandard Deviation 12.082
SC TCZ QWChange From Baseline in TJC ScoreWeek 84 (n=0,11)-6.27 tender jointsStandard Deviation 13.835
SC TCZ QWChange From Baseline in TJC ScoreWeek 12 (n=44,172)-5.17 tender jointsStandard Deviation 12.175
SC TCZ QWChange From Baseline in TJC ScoreWeek 24 (n=42,167)-5.12 tender jointsStandard Deviation 14.817
SC TCZ QWChange From Baseline in TJC ScoreWeek 36 (n=39,159)-5.60 tender jointsStandard Deviation 12.402
SC TCZ QWChange From Baseline in TJC ScoreWeek 48 (n=18,141)-5.95 tender jointsStandard Deviation 13.899
SC TCZ QWChange From Baseline in TJC ScoreWeek 60 (n=2,92)-6.23 tender jointsStandard Deviation 10.672
SC TCZ QWChange From Baseline in TJC ScoreWeek 72 (n=1,52)-4.98 tender jointsStandard Deviation 11.514
Secondary

Clinical Disease Activity Index (CDAI) Score

The CDAI was calculated using the SJC, TJC, and Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores. For the CDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The CDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician). Scores may range from 0 to 76, where higher scores indicate increased disease activity.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreBaseline (n=44,173)20.10 units on a scaleStandard Deviation 15.467
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreWeek 12 (n=44,172)13.99 units on a scaleStandard Deviation 13.058
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreWeek 24 (n=42,166)14.86 units on a scaleStandard Deviation 13.232
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreWeek 36 (n=39,159)13.26 units on a scaleStandard Deviation 11.839
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreWeek 48 (n=18,140)15.81 units on a scaleStandard Deviation 16.479
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreWeek 60 (n=2,92)13.60 units on a scaleStandard Deviation 2.828
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreWeek 72 (n=1,52)27.80 units on a scale
SC TCZ Q2WClinical Disease Activity Index (CDAI) ScoreWeek 84 (n=0,11)NA units on a scale
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreWeek 84 (n=0,11)12.82 units on a scaleStandard Deviation 9.154
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreBaseline (n=44,173)23.91 units on a scaleStandard Deviation 16.346
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreWeek 48 (n=18,140)16.55 units on a scaleStandard Deviation 13.559
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreWeek 12 (n=44,172)18.19 units on a scaleStandard Deviation 14.145
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreWeek 72 (n=1,52)16.04 units on a scaleStandard Deviation 15.476
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreWeek 24 (n=42,166)18.03 units on a scaleStandard Deviation 13.665
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreWeek 60 (n=2,92)14.71 units on a scaleStandard Deviation 11.954
SC TCZ QWClinical Disease Activity Index (CDAI) ScoreWeek 36 (n=39,159)16.92 units on a scaleStandard Deviation 12.598
Secondary

Disease Activity Score Based on 28 Joints (DAS28) Score

The DAS28 was calculated using the Swollen Joint Count (SJC), Tender Joint Count (TJC), erythrocyte sedimentation rate (ESR), and Global Assessment of Disease Activity by the participant according to Visual Analog Scale (VAS) score. For the DAS28 formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-millimeter (mm) scale to a 10-point score. The DAS28 was calculated as (0.56 multiplied by \[×\] square root of TJC) + (0.28 × square root of SJC) + (0.7 × log natural \[ln\] ESR) + (0.014 × VAS). Scores may range from 0 to 10, where higher scores indicate increased disease activity.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 48 (n=18,141)3.15 units on a scaleStandard Deviation 1.392
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreBaseline (n=44,172)4.55 units on a scaleStandard Deviation 1.732
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 60 (n=2,92)4.10 units on a scaleStandard Deviation 0.515
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 24 (n=43,168)3.08 units on a scaleStandard Deviation 1.351
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 72 (n=1,52)5.76 units on a scale
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 36 (n=39,159)3.07 units on a scaleStandard Deviation 1.425
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 84 (n=0,11)NA units on a scale
SC TCZ Q2WDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 12 (n=44,172)3.17 units on a scaleStandard Deviation 1.443
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 84 (n=0,11)2.78 units on a scaleStandard Deviation 1.434
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreBaseline (n=44,172)4.60 units on a scaleStandard Deviation 1.869
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 12 (n=44,172)3.42 units on a scaleStandard Deviation 1.728
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 36 (n=39,159)3.29 units on a scaleStandard Deviation 1.624
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 48 (n=18,141)3.25 units on a scaleStandard Deviation 1.639
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 60 (n=2,92)3.12 units on a scaleStandard Deviation 1.626
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 72 (n=1,52)3.05 units on a scaleStandard Deviation 1.97
SC TCZ QWDisease Activity Score Based on 28 Joints (DAS28) ScoreWeek 24 (n=43,168)3.35 units on a scaleStandard Deviation 1.786
Secondary

Global Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) Score

The Global Assessment of Disease Activity was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no disease activity) to 100 mm (maximum disease activity), with higher scores representing an increase in perceived symptoms.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 24 (n=43,168)31.86 mmStandard Deviation 25.639
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreBaseline (n=44,173)39.39 mmStandard Deviation 24.483
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 12 (n=44,172)31.80 mmStandard Deviation 23.878
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 36 (n=39,159)30.13 mmStandard Deviation 23.345
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 48 (n=18,141)37.95 mmStandard Deviation 24.878
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 60 (n=2,92)54.00 mmStandard Deviation 24.042
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 72 (n=1,52)57.00 mm
SC TCZ Q2WGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 84 (n=0,11)NA mm
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 84 (n=0,11)30.00 mmStandard Deviation 26.348
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 48 (n=18,141)34.63 mmStandard Deviation 27.136
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreBaseline (n=44,173)47.25 mmStandard Deviation 29.868
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 72 (n=1,52)30.83 mmStandard Deviation 28.425
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 12 (n=44,172)37.84 mmStandard Deviation 28.13
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 24 (n=43,168)37.51 mmStandard Deviation 27.536
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 60 (n=2,92)32.86 mmStandard Deviation 27.932
SC TCZ QWGlobal Assessment of Disease Activity by the Participant According to Visual Analog Scale (VAS) ScoreWeek 36 (n=39,159)37.44 mmStandard Deviation 27.519
Secondary

Global Assessment of Pain by the Participant According to VAS Score

The Global Assessment of Pain was performed using a 100-mm horizontal VAS. Scores may range from 0 mm (no pain) to 100 mm (unbearable pain), with higher scores representing an increase in pain.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 24 (n=43,168)29.42 mmStandard Deviation 24.509
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreBaseline (n=44,173)36.89 mmStandard Deviation 23.044
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 36 (n=39,159)28.38 mmStandard Deviation 20.607
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 60 (n=2,92)50.00 mmStandard Deviation 14.142
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 48 (n=18,141)33.44 mmStandard Deviation 21.742
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 12 (n=44,172)29.30 mmStandard Deviation 22.782
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 84 (n=0,11)NA mm
SC TCZ Q2WGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 72 (n=1,52)42.00 mm
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 84 (n=0,11)25.36 mmStandard Deviation 25.598
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 48 (n=18,141)31.52 mmStandard Deviation 25.892
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreBaseline (n=44,173)45.42 mmStandard Deviation 29.448
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 12 (n=44,172)33.27 mmStandard Deviation 25.984
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 24 (n=43,168)34.48 mmStandard Deviation 24.841
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 36 (n=39,159)34.40 mmStandard Deviation 25.149
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 72 (n=1,52)29.20 mmStandard Deviation 26.733
SC TCZ QWGlobal Assessment of Pain by the Participant According to VAS ScoreWeek 60 (n=2,92)30.94 mmStandard Deviation 27.635
Secondary

Heath Assessment Questionnaire-Disability Index (HAQ-DI) Score

The Stanford HAQ-DI was calculated as the average of 20 questions, each scored from 0 (no difficulty) to 3 (unable to do). The questionnaire included 8 component sets: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and common activities. Overall scores may range from 0 to 3, with higher scores representing increased disability.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline (n=44,173)0.98 units on a scaleStandard Deviation 0.682
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 12 (n=44,172)0.95 units on a scaleStandard Deviation 0.688
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 24 (n=43,167)0.94 units on a scaleStandard Deviation 0.717
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 36 (n=39,159)0.95 units on a scaleStandard Deviation 0.682
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 48 (n=18,141)0.97 units on a scaleStandard Deviation 0.596
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 60 (n=2,92)2.13 units on a scaleStandard Deviation 0.53
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 72 (n=1,52)2.25 units on a scale
SC TCZ Q2WHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 84 (n=0,11)NA units on a scale
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 84 (n=0,11)1.14 units on a scaleStandard Deviation 0.73
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline (n=44,173)1.20 units on a scaleStandard Deviation 0.729
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 48 (n=18,141)1.04 units on a scaleStandard Deviation 0.745
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 12 (n=44,172)1.11 units on a scaleStandard Deviation 0.75
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 72 (n=1,52)0.97 units on a scaleStandard Deviation 0.844
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 24 (n=43,167)1.09 units on a scaleStandard Deviation 0.725
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 60 (n=2,92)1.01 units on a scaleStandard Deviation 0.779
SC TCZ QWHeath Assessment Questionnaire-Disability Index (HAQ-DI) ScoreWeek 36 (n=39,159)1.10 units on a scaleStandard Deviation 0.741
Secondary

Number of Participants Who Returned to the QW Regimen After Switching to the Q2W Regimen

Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. The number of participants who switched from the QW to the Q2W regimen and thereafter returned to the QW regimen was reported with the reason for returning to the QW regimen.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants who switched from the QW to Q2W regimen were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WNumber of Participants Who Returned to the QW Regimen After Switching to the Q2W RegimenAny Reason1 participants
SC TCZ Q2WNumber of Participants Who Returned to the QW Regimen After Switching to the Q2W RegimenInvestigator Recommendation1 participants
Secondary

Number of Participants Who Switched From the QW Regimen and Remained on the Q2W Regimen

Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. The number of participants who switched from the QW to the Q2W regimen and did not return to the QW regimen was reported.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population. The results were presented for all participants to account for multiple switches between arms (i.e., participants who started in the Q2W arm could have switched to QW and then switched back to Q2W, making them analyzable for the outcome measure).

ArmMeasureValue (NUMBER)
SC TCZ Q2WNumber of Participants Who Switched From the QW Regimen and Remained on the Q2W Regimen14 participants
Secondary

Number of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or Discontinuation

Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants who received at least one CCS before the last dose of TCZ were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation6 participants
SC TCZ Q2WNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationDose Reduction5 participants
SC TCZ Q2WNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤14 Days0 participants
SC TCZ Q2WNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationDiscontinuation >14 Days2 participants
SC TCZ QWNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationDiscontinuation >14 Days19 participants
SC TCZ QWNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation33 participants
SC TCZ QWNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤14 Days2 participants
SC TCZ QWNumber of Participants With a Corticosteroid (CCS) Dose Reduction, Interruption, or DiscontinuationDose Reduction24 participants
Secondary

Number of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or Discontinuation

Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants receiving at least one DMARD at Baseline were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDose Reduction1 participants
SC TCZ Q2WNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDose Reduction/Interruption ≤60 Days1 participants
SC TCZ Q2WNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤60 Days1 participants
SC TCZ Q2WNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDiscontinuation >60 Days2 participants
SC TCZ Q2WNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation3 participants
SC TCZ QWNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDiscontinuation >60 Days15 participants
SC TCZ QWNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation37 participants
SC TCZ QWNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDose Reduction14 participants
SC TCZ QWNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤60 Days15 participants
SC TCZ QWNumber of Participants With a Disease-Modifying Anti-Rheumatic Drug (DMARD) Dose Reduction, Interruption, or DiscontinuationDose Reduction/Interruption ≤60 Days27 participants
Secondary

Number of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI Criteria

Low disease activity was defined as DAS28 ≤3.2, SDAI ≤11, or CDAI ≤10. For each formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. The CDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician), with potential scores from 0 to 76. For all instruments, higher scores indicate increased disease activity. The number of participants who met criteria for low disease activity was reported at each visit.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, DAS28 (n=43,168)23 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, SDAI (n=44,170)14 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, CDAI (n=44,173)13 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, DAS28 (n=44,172)21 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, SDAI (n=44,172)22 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, CDAI (n=44,172)20 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, DAS28 (n=44,172)11 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, SDAI (n=41,166)19 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, CDAI (n=42,166)20 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, DAS28 (n=39,159)21 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, SDAI (n=39,159)20 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, CDAI (n=39,159)21 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, DAS28 (n=18,141)10 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, SDAI (n=18,140)8 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, CDAI (n=18,140)7 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, DAS28 (n=2,92)0 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, SDAI (n=2,92)0 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, CDAI (n=2,92)0 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, DAS28 (n=1,52)0 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, SDAI (n=1,52)0 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, CDAI (n=1,52)0 participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, DAS28 (n=0,11)NA participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, SDAI (n=0,11)NA participants
SC TCZ Q2WNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, CDAI (n=0,11)NA participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, SDAI (n=0,11)4 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, DAS28 (n=44,172)46 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, DAS28 (n=18,141)69 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, SDAI (n=44,170)43 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, DAS28 (n=1,52)28 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, CDAI (n=44,173)41 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, SDAI (n=18,140)63 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, DAS28 (n=44,172)81 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, DAS28 (n=0,11)6 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, SDAI (n=44,172)65 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, CDAI (n=18,140)59 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, CDAI (n=44,172)63 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, SDAI (n=1,52)26 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, DAS28 (n=43,168)82 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, DAS28 (n=2,92)52 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, SDAI (n=41,166)67 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, CDAI (n=0,11)4 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, CDAI (n=42,166)60 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, SDAI (n=2,92)40 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, DAS28 (n=39,159)75 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, CDAI (n=1,52)25 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, SDAI (n=39,159)61 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, CDAI (n=2,92)37 participants
SC TCZ QWNumber of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, CDAI (n=39,159)60 participants
Secondary

Number of Participants With Remission According to DAS28, SDAI, and Boolean Criteria

Remission was defined as DAS28 \<2.6, SDAI ≤3.3, or meeting all Boolean criteria (28-count SJC and TJC ≤1, VAS ≤10 mm, and hsCRP ≤1 mg/dL). For DAS28 and SDAI formulas, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. For these instruments, higher scores indicate increased disease activity. The number of participants who met criteria for remission was reported at each visit.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, DAS28 (n=43,168)18 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, SDAI (n=44,170)2 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, Boolean (n=44,172)1 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, DAS28 (n=44,172)14 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, SDAI (n=44,172)7 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, Boolean (n=44,172)4 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, DAS28 (n=44,172)6 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, SDAI (n=41,166)8 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, Boolean (n=43,170)5 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, DAS28 (n=39,159)15 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, SDAI (n=39,159)7 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, Boolean (n=39,161)3 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, DAS28 (n=18,141)9 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, SDAI (n=18,140)1 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, Boolean (n=18,143)1 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, DAS28 (n=2,92)0 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, SDAI (n=2,92)0 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, Boolean (n=2,93)0 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, DAS28 (n=1,52)0 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, SDAI (n=1,52)0 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, Boolean (n=1,54)0 participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, DAS28 (n=0,11)NA participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, SDAI (n=0,11)NA participants
SC TCZ Q2WNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, Boolean (n=0,11)NA participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, SDAI (n=0,11)2 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, DAS28 (n=44,172)33 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, DAS28 (n=18,141)51 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, SDAI (n=44,170)15 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, DAS28 (n=1,52)22 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, Boolean (n=44,172)14 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, SDAI (n=18,140)15 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, DAS28 (n=44,172)61 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, DAS28 (n=0,11)6 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, SDAI (n=44,172)20 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, Boolean (n=18,143)14 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, Boolean (n=44,172)15 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, SDAI (n=1,52)11 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, DAS28 (n=43,168)61 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, DAS28 (n=2,92)39 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, SDAI (n=41,166)23 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, Boolean (n=0,11)2 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, Boolean (n=43,170)16 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, SDAI (n=2,92)17 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, DAS28 (n=39,159)57 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, Boolean (n=1,54)10 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, SDAI (n=39,159)21 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, Boolean (n=2,93)14 participants
SC TCZ QWNumber of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, Boolean (n=39,161)17 participants
Secondary

Percentage of Participants Who Correctly Administered All SC TCZ Doses

Compliance was assessed using drug dispensing logs, diary cards kept by the participant, and return records, as reviewed by the Investigator at regular visits. Total compliance up to the end of treatment was defined as the percentage of participants who correctly administered all scheduled doses of SC TCZ. Correct administration was defined as proper injection technique, injection of the correct amount (162 mg), device not left at room temperature for greater than (\>) 8 hours, and absence of other medication errors.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: Intent-to-Treat (ITT) Population: All participants who received at least one dose of study medication and had at least one post-dose efficacy assessment.

ArmMeasureValue (NUMBER)
SC TCZ Q2WPercentage of Participants Who Correctly Administered All SC TCZ Doses97.7 percentage of participants
SC TCZ QWPercentage of Participants Who Correctly Administered All SC TCZ Doses97.7 percentage of participants
Secondary

Percentage of Participants Who Switched From the QW Regimen and Remained on the Q2W Regimen

Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. The percentage of participants who switched from the QW to the Q2W regimen and did not return to the QW regimen was calculated.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population. The results were presented for all participants to account for multiple switches between arms (i.e., participants who started in the Q2W arm could have switched to QW and then switched back to Q2W, making them analyzable for the outcome measure).

ArmMeasureValue (NUMBER)
SC TCZ Q2WPercentage of Participants Who Switched From the QW Regimen and Remained on the Q2W Regimen6.5 percentage of participants
Secondary

Percentage of Participants With a CCS Dose Reduction, Interruption, or Discontinuation

Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants who received at least one CCS before the last dose of TCZ were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation40.0 percentage of participants
SC TCZ Q2WPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationDose Reduction33.3 percentage of participants
SC TCZ Q2WPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤14 Days0 percentage of participants
SC TCZ Q2WPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationDiscontinuation >14 Days13.3 percentage of participants
SC TCZ QWPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationDiscontinuation >14 Days21.3 percentage of participants
SC TCZ QWPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation37.1 percentage of participants
SC TCZ QWPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤14 Days2.2 percentage of participants
SC TCZ QWPercentage of Participants With a CCS Dose Reduction, Interruption, or DiscontinuationDose Reduction27.0 percentage of participants
Secondary

Percentage of Participants With a DMARD Dose Reduction, Interruption, or Discontinuation

Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants receiving at least one DMARD at Baseline were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDose Reduction2.4 percentage of participants
SC TCZ Q2WPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDose Reduction/Interruption ≤60 Days2.4 percentage of participants
SC TCZ Q2WPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤60 Days2.4 percentage of participants
SC TCZ Q2WPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDiscontinuation >60 Days4.9 percentage of participants
SC TCZ Q2WPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation7.3 percentage of participants
SC TCZ QWPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDiscontinuation >60 Days9.3 percentage of participants
SC TCZ QWPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationAny Dose Reduction/Interruption/Discontinuation23.0 percentage of participants
SC TCZ QWPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDose Reduction8.7 percentage of participants
SC TCZ QWPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDose Interruption ≤60 Days9.3 percentage of participants
SC TCZ QWPercentage of Participants With a DMARD Dose Reduction, Interruption, or DiscontinuationDose Reduction/Interruption ≤60 Days16.8 percentage of participants
Secondary

Percentage of Participants With HAQ-DI Score <0.5

The Stanford HAQ-DI was calculated as the average of 20 questions, each scored from 0 (no difficulty) to 3 (unable to do). The questionnaire included 8 component sets: dressing/grooming, arising, eating, walking, hygiene, reach, grip, and common activities. Overall scores may range from 0 to 3, with higher scores representing increased disability. The percentage of participants achieving a score \<0.5 was calculated at each visit.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Baseline (n=44,173)31.8 percentage of participants
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Week 12 (n=44,172)27.3 percentage of participants
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Week 24 (n=43,167)32.6 percentage of participants
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Week 36 (n=39,159)38.5 percentage of participants
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Week 48 (n=18,141)27.8 percentage of participants
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Week 60 (n=2,92)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Week 72 (n=1,52)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With HAQ-DI Score <0.5Week 84 (n=0,11)NA percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Week 84 (n=0,11)9.1 percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Baseline (n=44,173)17.9 percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Week 48 (n=18,141)24.8 percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Week 12 (n=44,172)20.9 percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Week 72 (n=1,52)34.6 percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Week 24 (n=43,167)23.4 percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Week 60 (n=2,92)29.3 percentage of participants
SC TCZ QWPercentage of Participants With HAQ-DI Score <0.5Week 36 (n=39,159)24.5 percentage of participants
Secondary

Percentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI Criteria

Low disease activity was defined as DAS28 ≤3.2, SDAI ≤11, or CDAI ≤10. For each formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. The CDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician), with potential scores from 0 to 76. For all instruments, higher scores indicate increased disease activity. The percentage of participants who met criteria for low disease activity was calculated at each visit.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, DAS28 (n=43,168)53.5 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, SDAI (n=44,170)31.8 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, CDAI (n=44,173)29.5 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, DAS28 (n=44,172)47.7 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, SDAI (n=44,172)50.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, CDAI (n=44,172)45.5 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, DAS28 (n=44,172)25.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, SDAI (n=41,166)46.3 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, CDAI (n=42,166)47.6 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, DAS28 (n=39,159)53.8 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, SDAI (n=39,159)51.3 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, CDAI (n=39,159)53.8 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, DAS28 (n=18,141)55.6 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, SDAI (n=18,140)44.4 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, CDAI (n=18,140)38.9 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, DAS28 (n=2,92)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, SDAI (n=2,92)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, CDAI (n=2,92)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, DAS28 (n=1,52)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, SDAI (n=1,52)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, CDAI (n=1,52)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, DAS28 (n=0,11)NA percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, SDAI (n=0,11)NA percentage of participants
SC TCZ Q2WPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, CDAI (n=0,11)NA percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, SDAI (n=0,11)36.4 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, DAS28 (n=44,172)26.7 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, DAS28 (n=18,141)48.9 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, SDAI (n=44,170)25.3 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, DAS28 (n=1,52)53.8 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaBaseline, CDAI (n=44,173)23.7 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, SDAI (n=18,140)45.0 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, DAS28 (n=44,172)47.1 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, DAS28 (n=0,11)54.5 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, SDAI (n=44,172)37.8 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 48, CDAI (n=18,140)42.1 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 12, CDAI (n=44,172)36.6 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, SDAI (n=1,52)50.0 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, DAS28 (n=43,168)48.8 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, DAS28 (n=2,92)56.5 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, SDAI (n=41,166)40.4 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 84, CDAI (n=0,11)36.4 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 24, CDAI (n=42,166)36.1 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, SDAI (n=2,92)43.5 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, DAS28 (n=39,159)47.2 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 72, CDAI (n=1,52)48.1 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, SDAI (n=39,159)38.4 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 60, CDAI (n=2,92)40.2 percentage of participants
SC TCZ QWPercentage of Participants With Low Disease Activity According to DAS28, SDAI, and CDAI CriteriaWeek 36, CDAI (n=39,159)37.7 percentage of participants
Secondary

Percentage of Participants With Remission According to DAS28, SDAI, and Boolean Criteria

Remission was defined as DAS28 \<2.6, SDAI ≤3.3, or meeting all Boolean criteria (28-count SJC and TJC ≤1, VAS ≤10 mm, and hsCRP ≤1 mg/dL). For DAS28 and SDAI formulas, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The DAS28 was calculated as (0.56 × square root of TJC) + (0.28 × square root of SJC) + (0.7 × ln ESR) + (0.014 × VAS), with potential scores from 0 to 10. The SDAI was calculated as SJC + TJC + VAS (participant) + VAS (physician) + hsCRP, with potential scores from 0 to infinity. However, based upon normal hsCRP level within 1 mg/dL, scores would be expected to fall within ≤77 points. For these instruments, higher scores indicate increased disease activity. The percentage of participants who met criteria for remission was calculated at each visit.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, DAS28 (n=2,92)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, SDAI (n=39,159)17.9 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, Boolean (n=39,161)7.7 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, DAS28 (n=18,141)50.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, SDAI (n=18,140)5.6 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, Boolean (n=18,143)5.6 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, DAS28 (n=39,159)38.5 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, SDAI (n=2,92)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, Boolean (n=2,93)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, DAS28 (n=1,52)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, SDAI (n=1,52)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, Boolean (n=1,54)0.0 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, DAS28 (n=0,11)NA percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, SDAI (n=0,11)NA percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, Boolean (n=0,11)NA percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, DAS28 (n=44,172)13.6 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, SDAI (n=44,170)4.5 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, Boolean (n=44,172)2.3 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, DAS28 (n=44,172)31.8 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, SDAI (n=44,172)15.9 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, Boolean (n=44,172)9.1 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, DAS28 (n=43,168)41.9 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, SDAI (n=41,166)19.5 percentage of participants
SC TCZ Q2WPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, Boolean (n=43,170)11.6 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, SDAI (n=41,166)13.9 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, DAS28 (n=39,159)35.8 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, DAS28 (n=0,11)54.5 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, SDAI (n=39,159)13.2 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, DAS28 (n=44,172)35.5 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 36, Boolean (n=39,161)10.6 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, SDAI (n=0,11)18.2 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, DAS28 (n=18,141)36.2 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, DAS28 (n=43,168)36.3 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, SDAI (n=18,140)10.7 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 84, Boolean (n=0,11)18.2 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 48, Boolean (n=18,143)9.8 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, SDAI (n=44,172)11.6 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, DAS28 (n=2,92)42.4 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, DAS28 (n=44,172)19.2 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, SDAI (n=2,92)18.5 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 24, Boolean (n=43,170)9.4 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 60, Boolean (n=2,93)15.1 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, SDAI (n=44,170)8.8 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, DAS28 (n=1,52)42.3 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 12, Boolean (n=44,172)8.7 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, SDAI (n=1,52)21.2 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaBaseline, Boolean (n=44,172)8.1 percentage of participants
SC TCZ QWPercentage of Participants With Remission According to DAS28, SDAI, and Boolean CriteriaWeek 72, Boolean (n=1,54)18.5 percentage of participants
Secondary

Percentage of Reasons Given for CCS Discontinuation

Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ. The reasons for any CCS discontinuation \>14 days were reported. More than one reason could be given for a single change in CCS therapy, and each participant could also change CCS therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants with a CCS discontinuation \>14 days were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Reasons Given for CCS DiscontinuationAEs50.0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS DiscontinuationSteroid Tapering50.0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS DiscontinuationAE Resolution0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS DiscontinuationParticipant Request0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS DiscontinuationRA Improvement0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS DiscontinuationNot Specified0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS DiscontinuationPrescription End0 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS DiscontinuationNot Specified14.8 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS DiscontinuationPrescription End14.8 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS DiscontinuationAE Resolution18.5 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS DiscontinuationAEs11.1 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS DiscontinuationRA Improvement14.8 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS DiscontinuationSteroid Tapering18.5 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS DiscontinuationParticipant Request7.4 percentage of reasons
Secondary

Percentage of Reasons Given for CCS Dose Interruption

Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ. The reasons for any CCS dose interruption ≤14 days were reported. More than one reason could be given for a single change in CCS therapy, and each participant could also change CCS therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants with a CCS dose interruption ≤14 days were included. Results were only reported for the QW arm because no participants in the Q2W arm had a CCS dose interruption.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Reasons Given for CCS Dose InterruptionHospitalization33.3 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS Dose InterruptionSteroid Tapering66.7 percentage of reasons
Secondary

Percentage of Reasons Given for CCS Dose Reduction

Use of concomitant medications, including CCS treatment, was recorded throughout the study. Any change in CCS therapy was documented and reported among those participants who received at least one CCS before the last dose of SC TCZ. The reasons for any CCS dose reduction were reported. More than one reason could be given for a single change in CCS therapy, and each participant could also change CCS therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants with a CCS dose reduction were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Reasons Given for CCS Dose ReductionAEs0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS Dose ReductionSteroid Tapering50.0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS Dose ReductionParticipant Request0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS Dose ReductionRA Treatment0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS Dose ReductionNot Specified7.1 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for CCS Dose ReductionMedical History42.9 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS Dose ReductionNot Specified1.2 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS Dose ReductionAEs3.6 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS Dose ReductionSteroid Tapering91.7 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS Dose ReductionMedical History0 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS Dose ReductionRA Treatment2.4 percentage of reasons
SC TCZ QWPercentage of Reasons Given for CCS Dose ReductionParticipant Request1.2 percentage of reasons
Secondary

Percentage of Reasons Given for DMARD Discontinuation

Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline. The reasons for any DMARD discontinuation were reported. More than one reason could be given for a single change in DMARD therapy, and each participant could also change DMARD therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants with a DMARD discontinuation \>60 days were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Reasons Given for DMARD DiscontinuationInvestigator Recommendation0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD DiscontinuationParticipant Request0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD DiscontinuationEfficacy33.3 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD DiscontinuationToo Expensive0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD DiscontinuationRA Improvement0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD DiscontinuationNot Specified0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD DiscontinuationAEs66.7 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD DiscontinuationNot Specified6.3 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD DiscontinuationAEs43.8 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD DiscontinuationEfficacy0 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD DiscontinuationInvestigator Recommendation6.3 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD DiscontinuationRA Improvement31.3 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD DiscontinuationParticipant Request6.3 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD DiscontinuationToo Expensive6.3 percentage of reasons
Secondary

Percentage of Reasons Given for DMARD Dose Reduction or Interruption

Use of concomitant medications, including non-biologic DMARDs, was recorded throughout the study. Any change in DMARD therapy was documented and reported among those participants receiving at least one DMARD at Baseline. The reasons for any DMARD dose reduction/interruption ≤60 days were reported. More than one reason could be given for a single change in DMARD therapy, and each participant could also change DMARD therapy more than once. Therefore, the number of reasons could exceed the number of participants analyzed.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants with a DMARD dose reduction/interruption ≤60 days were included.

ArmMeasureGroupValue (NUMBER)
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionEfficacy0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionRA Treatment0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionMedical History100.0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionReplace Previous Drug0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionJoint Surgery0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionParticipant Request0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionRA Improvement0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionNot Specified0 percentage of reasons
SC TCZ Q2WPercentage of Reasons Given for DMARD Dose Reduction or InterruptionAEs0 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionNot Specified7.3 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionAEs70.7 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionEfficacy2.4 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionJoint Surgery2.4 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionMedical History2.4 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionRA Improvement7.3 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionRA Treatment2.4 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionReplace Previous Drug2.4 percentage of reasons
SC TCZ QWPercentage of Reasons Given for DMARD Dose Reduction or InterruptionParticipant Request2.4 percentage of reasons
Secondary

Simplified Disease Activity Index (SDAI) Score

The SDAI was calculated using the SJC, TJC, Global Assessment of Disease Activity by the patient and by the physician according to separate VAS scores, and high-sensitivity C-reactive protein (hsCRP) level. For the SDAI formula, the SJC and TJC values were based upon 28 joints, and VAS was transformed from a 100-mm scale to a 10-point score. The SDAI was calculated as the sum of the component scores, that is, SJC + TJC + VAS (participant) + VAS (physician) + hsCRP. Because the formula includes hsCRP, scores may theoretically range from 0 to infinity, where higher scores indicate increased disease activity. However, based upon normal hsCRP level within 1 milligram per deciliter (mg/dL), scores would be expected to fall within less than or equal to (≤) 77 points.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population. The Number of Participants Analyzed reflects the total number of participants who provided data for the outcome measure. The number of participants who provided data for each analysis (n) is shown in the table.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreBaseline (n=44,170)21.54 units on a scaleStandard Deviation 15.717
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreWeek 12 (n=44,172)14.48 units on a scaleStandard Deviation 13.058
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreWeek 24 (n=41,166)15.42 units on a scaleStandard Deviation 13.266
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreWeek 36 (n=39,159)13.75 units on a scaleStandard Deviation 11.841
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreWeek 48 (n=18,140)15.85 units on a scaleStandard Deviation 16.49
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreWeek 60 (n=2,92)13.63 units on a scaleStandard Deviation 2.841
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreWeek 72 (n=1,52)27.82 units on a scale
SC TCZ Q2WSimplified Disease Activity Index (SDAI) ScoreWeek 84 (n=0,11)NA units on a scale
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreWeek 84 (n=0,11)12.90 units on a scaleStandard Deviation 9.163
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreBaseline (n=44,170)25.10 units on a scaleStandard Deviation 16.972
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreWeek 48 (n=18,140)16.76 units on a scaleStandard Deviation 13.603
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreWeek 12 (n=44,172)18.32 units on a scaleStandard Deviation 14.199
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreWeek 72 (n=1,52)16.23 units on a scaleStandard Deviation 15.73
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreWeek 24 (n=41,166)18.18 units on a scaleStandard Deviation 13.779
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreWeek 60 (n=2,92)14.90 units on a scaleStandard Deviation 12.045
SC TCZ QWSimplified Disease Activity Index (SDAI) ScoreWeek 36 (n=39,159)17.06 units on a scaleStandard Deviation 12.621
Secondary

Swollen Joint Count (SJC) Score

Sixty-six joints were assessed and classified as swollen/not swollen by pressure and joint manipulation on physical examination. The number of swollen joints was taken as the SJC score, where values may range from 0 to 66.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WSwollen Joint Count (SJC) ScoreBaseline (n=44,173)9.07 swollen jointsStandard Deviation 8.877
SC TCZ Q2WSwollen Joint Count (SJC) ScoreWeek 12 (n=44,172)5.61 swollen jointsStandard Deviation 7.144
SC TCZ Q2WSwollen Joint Count (SJC) ScoreWeek 24 (n=42,167)5.98 swollen jointsStandard Deviation 8.587
SC TCZ Q2WSwollen Joint Count (SJC) ScoreWeek 36 (n=39,159)5.51 swollen jointsStandard Deviation 8.398
SC TCZ Q2WSwollen Joint Count (SJC) ScoreWeek 48 (n=18,141)4.78 swollen jointsStandard Deviation 9.078
SC TCZ Q2WSwollen Joint Count (SJC) ScoreWeek 60 (n=2,92)2.00 swollen jointsStandard Deviation 2.828
SC TCZ Q2WSwollen Joint Count (SJC) ScoreWeek 72 (n=1,52)2.00 swollen joints
SC TCZ Q2WSwollen Joint Count (SJC) ScoreWeek 84 (n=0,11)NA swollen joints
SC TCZ QWSwollen Joint Count (SJC) ScoreWeek 84 (n=0,11)8.64 swollen jointsStandard Deviation 8.857
SC TCZ QWSwollen Joint Count (SJC) ScoreBaseline (n=44,173)10.83 swollen jointsStandard Deviation 10.855
SC TCZ QWSwollen Joint Count (SJC) ScoreWeek 48 (n=18,141)7.23 swollen jointsStandard Deviation 7.87
SC TCZ QWSwollen Joint Count (SJC) ScoreWeek 12 (n=44,172)7.87 swollen jointsStandard Deviation 8.839
SC TCZ QWSwollen Joint Count (SJC) ScoreWeek 72 (n=1,52)7.98 swollen jointsStandard Deviation 8.873
SC TCZ QWSwollen Joint Count (SJC) ScoreWeek 24 (n=42,167)8.57 swollen jointsStandard Deviation 8.783
SC TCZ QWSwollen Joint Count (SJC) ScoreWeek 60 (n=2,92)6.52 swollen jointsStandard Deviation 7.184
SC TCZ QWSwollen Joint Count (SJC) ScoreWeek 36 (n=39,159)6.92 swollen jointsStandard Deviation 7.055
Secondary

Tender Joint Count (TJC) Score

Sixty-eight joints were assessed and classified as tender/not tender by pressure and joint manipulation on physical examination. The number of tender joints was taken as the TJC score, where values may range from 0 to 68.

Time frame: Baseline and Weeks 12, 24, 36, 48, 60, 72, 84

Population: ITT Population; only those participants who provided evaluable data (n) were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
SC TCZ Q2WTender Joint Count (TJC) ScoreWeek 48 (n=18,141)10.61 tender jointsStandard Deviation 14.825
SC TCZ Q2WTender Joint Count (TJC) ScoreWeek 24 (n=42,167)10.95 tender jointsStandard Deviation 14.221
SC TCZ Q2WTender Joint Count (TJC) ScoreWeek 60 (n=2,92)5.50 tender jointsStandard Deviation 0.707
SC TCZ Q2WTender Joint Count (TJC) ScoreWeek 12 (n=44,172)9.86 tender jointsStandard Deviation 11.727
SC TCZ Q2WTender Joint Count (TJC) ScoreWeek 72 (n=1,52)21.00 tender joints
SC TCZ Q2WTender Joint Count (TJC) ScoreWeek 36 (n=39,159)9.10 tender jointsStandard Deviation 11.392
SC TCZ Q2WTender Joint Count (TJC) ScoreWeek 84 (n=0,11)NA tender joints
SC TCZ Q2WTender Joint Count (TJC) ScoreBaseline (n=44,173)13.84 tender jointsStandard Deviation 13.883
SC TCZ QWTender Joint Count (TJC) ScoreWeek 84 (n=0,11)9.36 tender jointsStandard Deviation 10.984
SC TCZ QWTender Joint Count (TJC) ScoreWeek 12 (n=44,172)14.06 tender jointsStandard Deviation 14.874
SC TCZ QWTender Joint Count (TJC) ScoreWeek 24 (n=42,167)13.86 tender jointsStandard Deviation 15.176
SC TCZ QWTender Joint Count (TJC) ScoreWeek 36 (n=39,159)13.45 tender jointsStandard Deviation 14.398
SC TCZ QWTender Joint Count (TJC) ScoreWeek 48 (n=18,141)12.85 tender jointsStandard Deviation 16.192
SC TCZ QWTender Joint Count (TJC) ScoreWeek 60 (n=2,92)10.47 tender jointsStandard Deviation 12.589
SC TCZ QWTender Joint Count (TJC) ScoreWeek 72 (n=1,52)11.38 tender jointsStandard Deviation 15.444
SC TCZ QWTender Joint Count (TJC) ScoreBaseline (n=44,173)19.14 tender jointsStandard Deviation 18.469
Secondary

Time to Return to the QW Regimen After Switching to the Q2W Regimen

Participants could switch between regimens at the Investigator's judgment based upon safety, efficacy, and pharmacokinetic/pharmacodynamic data. Time to return was defined as the time between switching to the Q2W regimen and returning to the previous QW regimen.

Time frame: From Baseline to last dose; assessed every 4 weeks during treatment (up to 96 weeks overall)

Population: ITT Population; only participants who switched from the QW to Q2W regimen and returned to the QW regimen were included.

ArmMeasureValue (MEDIAN)
SC TCZ Q2WTime to Return to the QW Regimen After Switching to the Q2W Regimen20 weeks

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026