This multi-center, randomized, parallel-group, active-controlled, open-label study will evaluate the safety and efficacy of a shortened RoActemra/Actemra (tocilizumab) infusion time compared to the normal infusion time. Patients will be randomized to 8 mg/kg RoActemra/Actemra infusion of 31 minutes every 4 weeks or to RoActemra/Actemra 8 mg/kg infusion of 60 minutes every 4 weeks. The anticipated time on study treatment is 24 weeks.