Primary Outcome
At month 6, the rate of patients with a DAS28-CRP score of 3.2 or less, as determined by the modified ITT analysis after multiple imputation, was 71.0% (780 of 1099) in the SSDM group vs 64.5% (708 of 1098) in the control group (difference between groups, 6.6%; 95% CI, 2.7% to 10.4%; 