RT Journal Article SR Electronic T1 Comparison of 2 doses of etanercept (50 vs 100 mg) in active rheumatoid arthritis: a randomized double blind study. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 659 OP 664 VO 33 IS 4 A1 Alyssa K Johnsen A1 Michael H Schiff A1 Philip J Mease A1 Larry W Moreland A1 Agnes L Maier A1 Jonathan S Coblyn A1 Simon M Helfgott A1 Jonathan A Leff A1 Michael E Weinblatt YR 2006 UL http://www.jrheum.org/content/33/4/659.abstract AB OBJECTIVE: To assess the safety and efficacy of etanercept 50 mg administered twice weekly versus 25 mg administered twice weekly as monotherapy in patients with tumor necrosis factor-alpha (TNF-alpha) blocker-naäve active rheumatoid arthritis (RA). METHODS: Seventy-seven patients with RA were randomized in an unequal allocation (2:1) in a blinded fashion to receive either 50 mg (51 patients) or 25 mg (26 patients) of etanercept twice a week for 24 weeks. RESULTS: The primary outcome measure, the ACR-N AUC at 24 weeks, showed no difference between the 2 dose groups. In addition, there was no difference in ACR 20, 50, and 70 responses or in EULAR response criteria by Week 24. There were no statistically significant differences between the 2 groups in the proportion of patients with any non-infectious adverse event. The proportion of patients with upper respiratory tract infections was significantly higher in patients receiving 50 mg etanercept compared with those receiving 25 mg (26% vs 4%, p = 0.027). CONCLUSION: Etanercept as a monotherapy at 50 mg twice weekly does not provide increased efficacy when compared to the standard dose of 25 mg twice weekly in TNF-alpha blocker-naäve patients.