A Randomized, Phase 3, Controlled, Double-Blind, Parallel-Group, Multicenter Study to Evaluate the Safety and Efficacy of Rituximab in Combination With Methotrexate (MTX) Compared to MTX Alone, in Methotrexate-Naive Patients With Active Rheumatoid Arthritis

This is a phase III, randomized, controlled, double-blind, parallel group, international study in approximately 750 patients with active Rheumatoid Arthritis (RA) who are naive to Methotrexate (MTX) therapy. Rheumatoid Factor (RF)-positive and RF-negative patients will be enrolled and will be allocated equally between 3 treatment arms.