An American College of Rheumatology (ACR) 50 response is defined as greater than or equal to (>=) 50 percent (%) improvement in both tender joint count (68 joints) and swollen joint count (66 joints) and >= 50% improvement in 3 of the following 5 assessments: participant's assessment of pain using Visual Analogue Scale (Score) VAS (0-10 scale, 0=no pain and 10=worst possible pain), participant's global assessment of disease activity by using VAS (the scale ranges from 0 to 10, [0 = very well to 10 = very poor]), physician's global assessment of disease activity using VAS (the scale ranges from 0 to 10, [0=no arthritis activity to 10=extremely active arthritis]), participant's assessment of physical function as measured by Health Assessment Questionnaire-Disability Index (HAQ-DI, the scale ranges from 0, indicating no difficulty, to 3, indicating inability to perform a task in that area), and serum C-reactive protein (CRP).

Population analyzed included all randomized participants in Part B.

The DAS28 based on C-Reactive Protein (CRP) is a statistically derived index combining tender joints (28 joints), swollen joints (28 joints), CRP and patient's global assessment of disease activity. The set of 28 joint count is based on evaluation of the shoulder, elbow, wrist, metacarpophalangeal (MCP) MCP1 to MCP5, proximal interphalangeal (PIP) PIP1 to PIP5 joints of both the upper right extremity and the upper left extremity as well as the knee joints of lower right and lower left extremities. The values are 0=best to 10=worst. A negative change from baseline in DAS28 (CRP) (that is, a decrease from baseline) indicates improvement from baseline.

Population analyzed included randomized subjects in Part A (excluding a site based on sponsor audit for data integrity) and Part B. Here 'n' signifies participants who were evaluable at specific time points, for each arm, respectively.

An ACR 50 response is defined as >= 50% improvement in both tender joint count (68 joints) and swollen joint count (66 joints) and >= 50% improvement in 3 of the following 5 assessments: Participant's assessment of pain using VAS (0-10 scale, 0=no pain and 10=worst possible pain), Participant's global assessment of disease activity by using VAS (the scale ranges from 0 to 10, [0 = very well to 10 = very poor]), Physician's global assessment of disease activity using VAS (the scale ranges from 0 to 10, [0=no arthritis activity to 10=extremely active arthritis]), Participant's assessment of physical function as measured by HAQ-DI (the scale ranges from 0, indicating no difficulty, to 3, indicating inability to perform a task in that area), and Serum CRP.

Population analyzed included all randomized participants in Part A (excluding a site based on sponsor audit for data integrity). Here 'N'(number of participants analyzed) signifies participants who were evaluable for this outcome measure.

Sirukumab Concentrations in serum were measured.

Population analyzed included participants treated with CNTO 136 (Sirukumab) in Part A (excluding a site based on sponsor audit for data integrity). Here 'N' (number of participants analyzed) signifies participants evaluable for this outcome measure whereas 'n' signifies participants evaluable at specific time points, for each arm, respectively.

Sirukumab Concentrations in serum were measured.

Population analyzed included participants treated with CNTO 136 (Sirukumab) in Part B. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this outcome measure whereas 'n' signifies participants who were evaluable at specific time points, for each arm, respectively.

Serum CRP is a marker of systemic inflammation. A negative change from baseline in CRP represents improvement.

Population analyzed included randomized participants in Part A (excluding a site based on sponsor audit for data integrity) and Part B. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this outcome measure.