Studie III vurderede effekt og sikkerhed af abatacept hos patienter med utilstrækkeligt respons på et TNF - hæmmende middel, hvor TNF- hæmmeren seponeredes inden randomisering; andre DMARD var tilladt.
In Study III the efficacy and safety of abatacept were assessed in patients with an inadequate response to a TNF blocking agent, with the TNF blocking agent discontinued prior to randomization; other DMARDs were permitted.