An Extension Study of Tocilizumab (Myeloma Receptor Antibody [MRA]) in Patients Completing Treatment in Tocilizumab Core Studies

This single-arm study evaluated the long-term efficacy and safety of tocilizumab in participants who had completed treatment in the tocilizumab core studies (NCT00106522 \[Roche protocol WA18062\], NCT00106574 \[Roche protocol WA18063\], and NCT00109408 \[Roche protocol WA17824\]) of adults with rheumatoid arthritis. Participants received tocilizumab alone or in combination with standard anti-rheumatic treatment.