Can an inhaled drug stop lung blood vessels from stiffening during exercise?

NCT ID NCT07837830

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 24, 2026 · Last updated Sep 25, 2026 · Updated 1 time

Summary

Researchers are testing whether inhaled treprostinil, added to standard care, improves blood flow through the lungs during exercise in adults with interstitial lung disease or connective tissue disease. Participants have high blood pressure in the lungs only when they exercise, not at rest. The trial compares those who receive the drug plus standard care with those who receive standard care alone, following both groups for 6 months with an optional extension to 12 months. The main measure is change in exercise pulmonary vascular resistance, a sign of how well lung blood vessels relax during activity.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
inhaled treprostinil
What this could lead to
If it works, this could point toward earlier treatment for people whose lung or connective tissue disease causes high blood pressure in the lungs only during exercise.
What could go wrong
This is a small, early-phase pilot with 32 participants, so results may not hold in larger studies. Inhaled treprostinil can cause coughing, throat irritation, headache, and low blood pressure, and some participants may not tolerate the full dose.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Early phase 1

The earliest testing in people: a first look at safety, in a very small group.

Participants

About 32 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Jun 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≥18 years * ILD diagnosis or CTD diagnosis * WHO Functional Class II-III * Resting RHC: * mPAP ≤20 mmHg * PVR ≤2 WU * PAWP ≤15 mmHg * Exercise-induced pulmonary hypertension on iCPET * Able to provide informed consent Exclusion Criteria: * Resting pulmonary hypertension * Significant left heart disease * CTEPH * Acute PE within 6 months * Current PAH-targeted therapy * Pregnancy or breastfeeding * Severe renal or hepatic impairment * Inability to perform exercise testing * Contraindication to RHC * Treprostinil hypersensitivity

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

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  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • The Valley Hospital

    RECRUITING

    Paramus, New Jersey, 07652, United States

  • Valley Medical Group Pulmonary Hypertension Clinic

    RECRUITING

    Paramus, New Jersey, 07652, United States

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