Overview A Study of Macitentan in Japanese Pediatric Participants With Pulmonary Arterial Hypertension Status: Not yet recruiting Trial end date: 2025-03-17 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate the effect of macitentan on hemodynamic measures at Week 24 in pediatric populations. Phase: Phase 3 Details Lead Sponsor: Janssen Pharmaceutical K.K.Treatments: Macitentan