ACR20 Responder Index: Composite of clinical, laboratory, and functional measures of rheumatoid arthritis. ACR20 Responder: had \>=20% improvement from baseline in both 68 tender and 66 swollen joint counts and \>=20% improvement in at least 3 of 5 criteria: participant's and physician's global assessment of disease activity, Health Assessment Questionnaire-Disability Index (HAQ-DI) (which measured participants' perceived degree of difficulty performing daily activities), joint pain, and C-reactive protein (CRP). Percentage of participants achieving ACR20 response=(number of ACR20 responders/number of participants treated)\*100. All non-responders at Week 16 as well as all participants who discontinued study treatment at any time, for any reason, were defined as non-responders starting at that timepoint and going forward, including Week 24 endpoint.

A TEAE started on or after the date and time of the first dose of study drug administered in this study, or started prior to the study drug administration but worsened after the study drug started. Clinically significant events were defined as SAEs and other non-serious adverse events (AEs). A summary of SAEs and other non-serious AEs is located in the Reported Adverse Events module. Participants were on treatment up to 48 weeks. If a participant completed 48 weeks of treatment, the post-study treatment follow-up started at the next visit, 4 weeks later (Week 52). If a participant discontinued treatment early \[early discontinuation (ED)\], the post-study treatment follow-up started immediately afterwards. Baseline was defined as Week 0 in this study \[which is equivalent to Week 24 of the participant's prior study: Study H9B-MC-BCDG (NCT00689728) or Study H9B-MC-BCDH (NCT00785928)\].

For each planned laboratory evaluation, the range of values to be reported as AEs, regardless of causality, was pre-specified. A summary of SAEs and other non-serious AEs regardless of causality is located in the Reported Adverse Events module. Baseline was defined as Week 0 in this study \[which is equivalent to Week 24 of the participant's prior study: Study H9B-MC-BCDG (NCT00689728) or Study H9B-MC-BCDH (NCT00785928)\].

ACR50 Responder Index is a composite of clinical, laboratory, and functional measures in rheumatoid arthritis. An ACR50 Responder is defined as a participant with \>50% improvement from baseline in both tender and swollen joint counts and in at least 3 of the following 5 criteria: physician global assessment, participant global assessment, functional ability measure (Health Assessment Questionnaire-Disability Index which measures participants' perceived degree of difficulty when performing various daily activities), visual analog pain scale, and erythrocyte sedimentation rate or C-reactive protein.

Included are the number of participants who experienced SAEs and treatment-emergent other non-SAEs. A summary of SAEs and other non-SAEs, regardless of causality, is located in the Reported Adverse Events (AEs) module.

Clinically significant effects are defined as serious AEs (SAEs) and other non-serious AEs regardless of causality. A summary of SAEs and other non-serious AEs regardless of causality is located in the Reported Adverse Events module.