A Multi-center, Uncontrolled Extension Study Evaluating Efficacy and Safety of SAR153191 in Patients With Active Rheumatoid Arthritis (RA)

Main Study: Primary Objective: Assess the long term safety of sarilumab in participants with rheumatoid arthritis (RA). Secondary Objective: Assess the long term efficacy of sarilumab in participants with RA. Sub-Study: This phase 3, open label sub-study was aimed to assess the usability of PFS-S when used by participants with moderate or severe RA, or their professional or non-professional healthcare providers in an unsupervised real-world situation. To mimic the real-world practice, the sub-study was incorporated into the LTS11210 study without additional visits compared to the scheduled visits in the main study. The duration of this sub-study was 12 weeks.