This retrospective, multi-centre, observational study will assess the daily practice patterns and outcomes of the management of rheumatoid arthritis in patients treated with RoActemra/Actemra (tocilizumab). No actual patient will be enrolled in this study; data will be collected from medical records.

Inclusion Criteria:

• Adult patients, >=18 years of age
• Diagnosed with rheumatoid arthritis and moderate to severe disease activity defined as a DAS28 >=5.1
• Inadequate responder to at least 2 non-biological DMARDs
• Absence of documented erosions at start of RoActemra/Actemra treatment
• Received RoActemra/Actemra treatment for at least 6 months
• Availability of data from at least the RoActemra/Actemra treatment initiation visit and the 6 months visit

Exclusion Criteria:

• Contraindications for treatment with RoActemra/Actemra

Retrospective survey of medical records from patients with moderate to severe rheumatoid arthritis treated with RoActemra/Actemra (tocilizumab) who did not have documented erosions at the start of RoACTEMRA treatment .