Longterm Safety and Efficacy of Tocilizumab in Patients with Rheumatoid Arthritis: A Cumulative Analysis of Up to 4.6 Years of Exposure

From the Division of Rheumatology, Stanford University Medical Center, Palo Alto, California, USA; Department of Internal Medicine, University of Cologne, Cologne, Germany; Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria; Center for Rheumatology, Albany Medical College, State University of New York, Albany, New York, USA; Memorial University of Newfoundland, St. John’s, Newfoundland and Labrador, Canada; Rheumatology Unit Hospital, Clinical Universitario, Santiago, Spain; Department of Rheumatology, University of South Florida, Palm Harbor, Florida, USA; Hoffmann-La Roche Inc., Nutley, New Jersey, USA; PDBB-Biostatistics, Roche Products Limited, Welwyn Garden City, UK; and Rheumatology Unit, Department of Medicine, Karolinska University Hospital in Solna, Stockholm, Sweden.