Modified American College of Rheumatology response rates at 6 months and 1 year
| Modified ACR response rate | 6 months | 1 year | ||
|---|---|---|---|---|
| Abatacept (2 mg/kg) +etanercept (n = 85) | Placebo+etanercept (n = 36) | Abatacept (2 mg/kg)+etanercept (n = 85) | Placebo+etanercept (n = 36) | |
| ACR, American College of Rheumatology. | ||||
| Values are number (%). | ||||
| All patients received etanercept 25 mg twice weekly. | ||||
| ACR 20 | 41 (48.2) | 11 (30.6) | 41 (48.2) | 11 (30.6) |
| ACR 50 | 22 (25.9) | 7 (19.4) | 24 (28.2) | 6 (16.7) |
| ACR 70 | 9 (10.6) | 0 (0) | 8 (9.4) | 2 (5.6) |