Lead Sponsor

Hoffmann-La Roche

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•Adult patients, \>/= 18 years of age
•Moderate to severe rheumatoid arthritis according to revised (1987) American college of rheumatology (ACR) criteria
•Initiated on tocilizumab treatment by the treating physician in accordance with the Canadian product monograph
•Informed consent to data being subject to computerized data processing
•Participant must fulfill the reimbursement criteria for treatment with tocilizumab under provincial or private health insurance coverage

•Received tocilizumab prior to enrolment visit
•Previously received tocilizumab in a clinical trial or for compassionate use
•Enrolled in an ongoing clinical trial and/or received treatment with any investigational agent within 4 weeks, or 5 half-lives of the investigational agent, whichever is longer, before starting treatment with tocilizumab
•Participation in another clinical trial or industry sponsored observational study
•History of autoimmune disease or any joint inflammatory disease other than rheumatoid arthritis, with the exception of concomitant secondary Sjörgen's syndrome