Researchers at Alexion Pharmaceuticals are seeking adults living with dermatomyositis to participate in a phase 2 clinical trial to evaluate the safety, effectiveness, and pharmacological properties of the investigational drug ravulizumab (Ultomiris). Ravulizumab is designed to target a component of the immune system (known as complement), which underlies many autoimmune disorders including dermatomyositis. Treatment with ravulizumab . . .