This study is a non-confirmatory post-marketing observational study to explore and describe the effectiveness of adalimumab on rheumatoid arthritis (RA) treatment course and participant satisfaction over time in context with utilization of a patient support program (PSP). The core elements of the PSP were call centers (in and outbound)/hotlines, nursing services, starter packs, provision of educational materials (print and digital) regarding RA and adalimumab, and injection guides. Other elements of the PSP, which varied between countries, included (but were not limited to) refill reminders, email contacts, support groups, and newsletters.