Overview Bosentan in Digital Ulcers Status: Completed Trial end date: 2009-01-22 Target enrollment: Participant gender: Summary The aim of the study is to collect long-term efficacy, tolerability and safety data of bosentan in Systemic Sclerosis (SSc) patients suffering from ischemic digital ulcers (DUs). Phase: Phase 3 Details Lead Sponsor: ActelionTreatments: Bosentan