The FIN-RACo trial is an investigator initiated multicenter (n=15 centers in Finland) prospective study on the treatment of patients with early rheumatoid arthritis (RA) with combination therapy with disease modifying antirheumatic drugs starting with methotrexate, sulphasalazine, hydroxychloroquine and prednisolone (COMBI). During the first 6 months, the patients are randomized to treatment with infliximab/placebo added on the combination treatment. The study is prospective for 5 years, with extension to 10 years. The target is to induce remission in both treatment arms. To reach this target, the investigators use frequent changes of doses and anti-rheumatic drugs and use of intra-articular glucocorticoid injections. The primary endpoints are the proportions of patients with remission at 2 and 5 years in both treatment arms.