Note: In individual cases or in a country where access to anti TNF agents is limited or anti TNF agents are unavailable, the Investigator should document the reason for lack of availability of this treatment. Those patients who have not been treated with an anti-TNF agent would still be eligible for the study if they have failed treatment with at least two additional DMARDs, besides MTX and/or leflunomide. All patients may have also failed treatment with other biological agents or a protein A column.