Efficacy of Tocilizumab in Association to Steroids in Giant Cell Arteritis With Cerebro-vascular Involvement

"Tocilizumab will be administered subcutaneously at a dose of 162mg/0.9mL weekly (each week, on the same day) from week 0 to week 24.~At the first injection (Baseline D0), a therapeutic education is provided for patients/caregivers who can carry out the injections themselves as part of their usual care."

Placebo administered subcutaneously (SC) weekly during 24 weeks