Trial | No. of patients | Patient characteristics | Regimens | Discontinuation rates (%) |
---|---|---|---|---|
ATTRACT [12] | 428 | Active RA despite methotrexate therapy; mean duration 9–12 years | Infliximaba | 21 |
 |  |  | 3 mg q 4 weeks |  |
 |  |  | 3 mg q 8 weeks |  |
 |  |  | 10 mg q 4 weeks |  |
 |  |  | 10 mg q 8 weeks |  |
 |  |  | Placeboa (weekly) | 50 |
ERA [14] | 632 | Early RA; mean duration <1 year (i.e. 11–12 months) | Etanercept |  |
 |  |  | 25 mg twice weekly | 15 |
 |  |  | Methotrexate (mean, 19 mg) weekly | 21 |