Efficacy of IVIG in Dermatomyositis Treatment 1st Placebo controlled RCT 1️⃣79% responder by total improvement score vs. 44% 2️⃣Efficacy sustained thru wk 40 3️⃣6% serious AE - thromboembolic event @RheumNow #ACR20 Abs#0955 #ACRbest https://t.co/715h1UkZ9X