A Phase III Study of Abatacept in Patients With Rheumatoid Arthritis and an Inadequate Response to Methotrexate

Intravenous (IV) solution, - weight tiered (500 mg \<60 kg); (750 mg 60-100 kg); (1 gram \> 100 kg), Day 1, Day 15, Day 29; every 28 days thereafter, 6 months

Tablets, Oral, ≥ 15 mg, weekly, 6 months

IV solution, Intravenous, D5W, Day 1, Day 15, Day 29; every 28 days thereafter, 6 months

Solution, intravenous, 10 mg/kg, every 28 days

Tablets, oral, 15 mg weekly to be adjusted according to patient condition