A Study to Evaluate Different Targeted Therapies for Patients With Rheumatoid Arthritis

Rheumatoid Arthritis (RA) is a chronic inflammatory disease causing pain, stiffness, swelling and loss of joint function. This study will evaluate the efficacy and safety of targeted therapies through a series of substudies for the treatment of moderately to severely active Rheumatoid Arthritis (RA). This study currently includes 3 substudies evaluating different treatments in participants with RA. Substudy 1 will evaluate lutikizumab monotherapy (treatment given alone) compared to placebo (looks like the study treatment but contains no medicine). Substudy 2 will evaluate ravagalimab monotherapy compared to placebo and Substudy 3 will evaluate lutikizumab and ravagalimab combination therapy (treatments given together) compared to placebo. Approximately 180 participants who have failed 1 or 2 biologic/targeted synthetic disease-modifying antirheumatic drug (tsDMARD) therapies will be enrolled in the study at approximately 65 sites worldwide. There may be higher treatment burden for participants in this trial compared to their standard of care treatment without participating in this study. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.