Inhaled drug aims to ease dangerous lung blood pressure in scarred lungs
NCT ID NCT07816185
First seen Sep 11, 2026 · Last updated Sep 11, 2026
Summary
Researchers are testing an inhaled drug called mosliciguat in people who have pulmonary hypertension caused by interstitial lung disease, a condition where lung scarring leads to high blood pressure in the lungs. The phase 3 trial enrolls about 376 participants who receive either mosliciguat or a placebo through a dry powder inhaler. The main goal is to see whether the drug improves how far participants can walk in six minutes, with a secondary aim of delaying hospitalizations or other signs of worsening.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- an inhaled drug called mosliciguat
- What this could lead to
- If it works, inhaled mosliciguat could become a new treatment option for people whose pulmonary hypertension is caused by interstitial lung disease, a group with few targeted therapies.
- What could go wrong
- The trial is still testing whether the drug helps, and inhaled therapies for this condition have failed before. Mosliciguat may not improve walking distance or delay worsening, and it could cause side effects such as coughing, low blood pressure, or breathing problems.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 376 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2026
- Expected to finish
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Aug 2029
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants willing and able to provide informed consent. * Participants with diagnosis of pulmonary hypertension (PH) associated with interstitial lung disease (ILD). Diagnosis will be confirmed by a high-resolution computerized tomography (HR-CT) scan showing diffuse parenchymal disease. Eligible diagnosed disease include: 1. Idiopathic interstitial pneumonia (IIP) 2. Chronic Hypersensitivity pneumonitis 3. ILD associated connective tissue disease (CTD) * Confirmed pulmonary hypertension by right heart catheterization (RHC). * Ability to perform 6-minute walk distance ≥100 meters. Exclusion Criteria: * Diagnosis of PH Group 1 (eg, pulmonary arterial hypertension), Group 2 (related to left heart disease), Group 4 (eg, chronic thromboembolic pulmonary hypertension), or Group 5 (eg, unclassified). * Exacerbation of underlying lung disease requiring change in therapy or hospitalization within 28 days prior to randomization * Receiving \>10 L/min oxygen supplementation by any mode of delivery at rest * History of intolerance to mosliciguat, or sGC stimulators or activators. * Initiation of pulmonary rehabilitation or ongoing acute phase of rehabilitation within 28 days prior to randomization. * Receipt of investigational or interventional therapy within 42 days OR 5 half-lives (whichever is longer) prior to randomization.
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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.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
3 sites. The list below names each one and where it is.
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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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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
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Study contacts
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Contact
Email: •••••@•••••
Locations
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Clinical Research Site
RECRUITINGKissimmee, Florida, 34746, United States
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Clinical Research Site
RECRUITINGLouisville, Kentucky, 40202, United States
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Clinical Research Site
RECRUITINGBend, Oregon, 97701, United States
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