Overview A Therapeutic Open Label Study of Tocilizumab in the Treatment of Pulmonary Arterial Hypertension Status: Completed Trial end date: 2018-02-18 Target enrollment: Participant gender: Summary An open label study to assess the safety and efficacy of tocilizumab in group 1 pulmonary arterial hypertension patients Phase: Phase 2 Details Lead Sponsor: Papworth Hospital NHS Foundation TrustCollaborators: National Institute for Health Research, United KingdomRoche Pharma AG