Overview Bosentan in Patients With Inoperable Chronic Thromboembolic Pulmonary Hypertension (CTEPH) Status: Completed Trial end date: 2009-04-01 Target enrollment: Participant gender: Summary The present trial investigates the long-term safety, tolerability and efficacy of bosentan in patients with inoperable CTEPH. Phase: Phase 3 Details Lead Sponsor: ActelionTreatments: Bosentan