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Efficacy and Safety Study of Treprostinil Palmitil Inhalation Powder (TPIP) in Participants With Pulmonary Hypertension Associated With Interstitial Lung Disease (PH-ILD)

A Phase 3, Randomized, Double-blind, Placebo-controlled, Multicenter, Parallel group Study to Evaluate the Efficacy and Safety of Treprostinil Palmitil Inhalation Powder in Participants with Pulmonary Hypertension Associated with Interstitial Lung Disease - PALM-ILD

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031250506
Enrollment
344
Registered
2025-11-17
Start date
2026-01-07
Completion date
Unknown
Last updated
2026-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary hypertension, interstitial lung disease

Interventions

Experimental: Treprostinil Palmitil Inhalation Powder Participants will receive TPIP once daily (QD), at a starting dose of 80 micrograms to maximum tolerated dose up to 1280 micrograms for 24 weeks.

Sponsors

Makulova Natalya
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Diagnosis of PH World Health Organisation (WHO) Group 3 associated with ILD [including but not limited to idiopathic interstitial pneumonia (IIP), chronic hypersensitivity pneumonitis (HSP), connective tissue disease-associated interstitial lung disease (CTD-ILD), combined pulmonary fibrosis and emphysema (CPFE)]. 2. Confirmation of fibrotic interstitial lung disease by centrally overread computed tomography (CT) scan performed at Screening or within prior 12 months. 3. PH confirmed by right heart catheterization (RHC) at Screening or within 12 months prior to Screening, with the following hemodynamic findings: -Mean pulmonary arterial pressure (mPAP) greater than 20 millimetres of mercury and -Pulmonary capillary wedge pressure (PCWP) of less than or equal to 15 millimetres of mercury and -Pulmonary vascular resistance (PVR) of greater than or equal to 4 wood units (WU). 4. 6-Minute walking distance (6MWD) greater than or equal to 100 and less than or equal to 500 meters at two 6MWTs at Screening performed at least 4 hours apart, with the difference between the 2 distances less than or equal to 15%. 5. Participants receiving chronic medication for underlying disease (e.g., antifibrotic, immunomodulators, immunosuppressants, etc.) and/or phosphodiesterase 5 (PDE5) inhibitors, should be on this treatment for greater than or equal to 90 days and on a stable dose for greater than or equal to 30 days prior to Screening. 6. Capable of giving signed informed consent as described in Section 10.1.5 which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.

Exclusion criteria

Exclusion criteria: 1. Diagnosis of Pulmonary Hypertension WHO Groups 1, 2, 4, or 5, or subtypes of PH WHO Group 3 other than interstitial lung disease. 2. Primary diagnosis of chronic obstructive pulmonary disease (COPD) and/or forced expiratory volume in 1 second (FEV1)/FVC <0.7 (based on screening or historical spirometry within the prior 6 months). 3. Clinically significant left heart disease: - evidence of clinically significant left-sided valvular heart disease, - left ventricular failure with left ventricular ejection fraction (LVEF) <45%, or diagnosis of heart failure with preserved ejection fraction (HFpEF) - echocardiography findings at Screening suggestive for postcapillary PH - unstable ischemic heart disease - unstable arrhythmia, including uncontrolled atrial fibrillation (rate-controlled arrhythmia or paroxysmal atrial fibrillation is allowed) 4. Evidence of chronic thromboembolic disease or recent (within 6 months of Screening) acute pulmonary embolism. 5. Known hypersensitivity or contraindication to treprostinil or TPIP or TPIP formulation excipients (e.g., mannitol, leucine). 6. Current use of cigarettes or e-cigarettes: An adult who has smoked at least 100 cigarettes in his or her lifetime and who currently smokes either every day or some days. 7. Current use of inhaled marijuana, recreational or medical (current use defined as used at least one or more times during the past 30 days prior to Screening) or expected use during the study. 8. Any other medical or psychological condition including relevant laboratory abnormalities at Screening that, in the opinion of the Investigator, suggest a new and/or insufficiently understood disease and/or may present an unreasonable risk to the study participant as a result of his/her participation in this clinical trial, may impede their ability complete the study or the study assessments or confound the outcomes of the trial.

Design outcomes

Primary

MeasureTime frame
Change in 6MWD Measured at Peak Exposure From Baseline to Week 24

Secondary

MeasureTime frame
1) Time From Randomization to First Clinical Worsening Over the 24-Week Treatment Period 2) Time From Randomization to First Major Morbidity or Mortality Event Over the 24-Week Treatment Period 3) Change From Baseline in N-Terminal Pro Hormone Brain Natriuretic Peptide (NT-proBNP) Plasma Concentration Over 24 Weeks 4) Number of Participants With Greater Than or Equal to (>=) 30% Decrease in NT-proBNP or Who Maintained/Achieved Less Than (<) 300 Nanogram per Liter (ng/L) of NT-proBNP Level at Week 24 5) Change in 6MWD Measured at Trough Exposure From Baseline to Week 22 6) Change From Baseline in 6MWD Measured at Peak Exposure Over 20 Weeks 7) Mean Change From Baseline in Living With Pulmonary Fibrosis (L-PF) Total Symptom Domain Score Over 24 Weeks 8) Plasma Concentrations of Treprostinil Palmitil (TP) and Treprostinil (TRE) up to Week 24

Contacts

Public ContactMedical Information Center

Insmed Godo Kaisha

medicalinformation@insmed.com81-120-118808

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: May 30, 2026