Tiprelestat Versus Placebo When Added to Standard of Care for the Treatment of Pulmonary Arterial Hypertension (PAH)

Trial statusNot yet recruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18-75
SponsorStanford University

About this trial

The primary objective of this study is to compare the efficacy, safety, and tolerability of tiprelestat plus Standard of Care (SOC) compared with placebo plus SOC in patients with World Health Organization (WHO) functional class II-IV pulmonary arterial hypertension (PAH).

Eligibility criteria

Qualifiers

Adults age 18 to 75 years.

Willingness to give written informed consent prior to any study-related procedures being performed and to be able to adhere to the study restrictions and examination schedule.

Diagnosis of WHO Group I PAH.

WHO functional class II - IV despite optimized treatment SOC, with 1 or more modalities including phosphodiesterase 5 (PDE5) inhibitor, soluble guanylate cyclase stimulator (sGCS), endothelin receptor antagonist (ERA), and/or a prostacyclin analogue or receptor agonist (SC/inhaled/PO) (see #5), as well as Sotatercept (see #6).

Disqualifiers

Diagnosis of WHO Group 2 - 5 Pulmonary Hypertension.

Participation in another clinical trial, or experimental use, involving a PAH investigational drug or device within the last 3 months.

Total lung capacity (TLC) < 60% predicted; if TLC is ≥ 60% and < 70% predicted, high resolution computed tomography (HRCT) must be available to exclude significant interstitial lung disease.

FEV1 / FVC < 70% predicted and FEV1 < 60% predicted.

Trial design

Treatments tested in this trial

  • Tiprelestat (5 mg)
  • Placebo (1 mL 0.9% saline solution)
  • Tiprelestat (10 mg)

Treatment groups

90 Participants
are divided into 3 treatment groups

Sponsors and collaborators

Stanford University

Lead sponsor

National Heart, Lung, and Blood Institute (NHLBI)

Collaborator

University of Michigan

Collaborator