Overview Ustekinumab for the Treatment of Giant Cell Arteritis Status: Terminated Trial end date: 2019-09-19 Target enrollment: Participant gender: Summary The purpose of this study is to determine whether ustekinumab is effective in the treatment of Giant Cell Arteritis (GCA) Phase: Phase 1/Phase 2 Details Lead Sponsor: Massachusetts General HospitalTreatments: PrednisoneUstekinumab