Der blev set fald i trombocyttallene til under 100 x 109/ l hos 1, 7% af de patienter, der fik tocilizumab 8 mg/ kg plus DMARDs, sammenlignet med < 1% hos de patienter, der fik placebo plus DMARDs.
Decreases in platelet counts below 100 x 103/ μ l occurred in 1.7% of patients on tocilizumab 8 mg/ kg plus DMARDs compared to < 1% on placebo plus DMARDs.