Overview Treatment With Ambrisentan in Patients With Borderline Pulmonary Arterial Hypertension Status: Not yet recruiting Trial end date: 2026-03-30 Target enrollment: Participant gender: Summary An Investigator initiated trial (IIT) using a prospective, randomized, double-blind, parallel group, placebo-controlled, clinical study design. Phase: N/A Details Lead Sponsor: Nanjing First Hospital, Nanjing Medical UniversityCollaborator: Tianjin Medical University General HospitalTreatments: Ambrisentan