CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 29 enrolled
Drug / intervention
Treprostinil +2 moredrug
Likely dose
Treprostinil 30mcgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05564637
NCT05564637Phase 2Completed

Comprehensive O2 Transfer Analysis From the Lung to Mitochondria of Inhaled Treprostinil in Interstitial Lung Disease Pulmonary Hypertension

Mayo Clinic·interventional·Posted Oct 3, 2022·Updated Dec 3, 2025

In Brief

A Phase 2 clinical trial evaluating Treprostinil, Right Heart Catheterization (RHC) while exercising, and 1 other intervention for Pulmonary Arterial Hypertension and 2 related conditions. Completed, enrolled 29 participants across 1 site.

Detailed Summary

The purpose of this research study is to find out more about the drug treprostinil via inhaler and the mechanisms of why patients with pulmonary arterial hypertension related to Interstitial Lung disease (PAH-ILD) have limitations during exercise. The investigator is studying treprostinil's effect on patients with PAH-ILD during exercise and its effect on their quality of life after using it for 3 months.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
CollaboratorsUnited Therapeutics

Timeline

Phase 2CompletedFinished
2023202420252026
First PostedOct 3, 2022
Enrollment StartMar 13, 2023
Primary CompletionOct 30, 2024
TodayJul 2, 2026
Enrollment to primary: 1.6 yearsPosted 3.7 years ago

Interventions

Treprostinildrug

30mcg (5 breaths) of inhaled treprostinil will be administered during the RHC procedure and patients will be initiated on outpatient inhaled treprostinil therapy for 3-months with gradual up titration to target dose as per standard clinical practice.

Right Heart Catheterization (RHC) while exercisingother

A procedure to measure how well or poorly your heart is pumping and to measure the pressures in the heart and lungs. A catheter will be inserted into a vein and artery in order to take the measurements and this will be conducted while exercising on a supine cycle ergometer. Various measurements will be taken during periods of rest and exercise.

Optional Muscle Biopsyother

A sample of muscle tissue will be collected and analyzed for the ability of the cells to utilize oxygen.