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An Extension Study of Treprostinil Palmitil Inhalation Powder (TPIP) for Pulmonary Arterial Hypertension (PAH)

An Open-Label Extension Study to Assess the Safety, Tolerability, and Effectiveness of the Long-Term Use of Treprostinil Palmitil Inhalation Powder in Participants With Pulmonary Arterial Hypertension

Status
Active, not recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05649748
Enrollment
91
Registered
2022-12-14
Start date
2023-03-07
Completion date
2026-12-31
Last updated
2026-08-20

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

Conditions

Pulmonary Arterial Hypertension

Keywords

Treprostinil Palmitil

Brief summary

The primary purpose of the study is to evaluate the safety and tolerability of the long-term use of TPIP in participants with PAH from studies INS1009-201 (NCT04791514), INS1009-202 (NCT05147805) and other lead-in studies of TPIP in participants with PAH.

Interventions

Administered by oral inhalation, using a Plastiape capsule-based dry powder inhaler.

DRUGPlacebo

Administered by oral inhalation using a Plastiape capsule-based dry powder inhaler

Sponsors

Insmed Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male and female participants who completed end of treatment study visit in Study INS1009-201, INS1009-202, or any other lead-in PAH TPIP study. Participants for whom the OLE study was not available at the time of their completion of the lead-in study are eligible for enrolment within one year of their lead-in end of treatment visit. * Complete baseline screening assessments to confirm eligibility to participate if more than 30 days have elapsed since the end of the study visit in Study INS1009-201, INS1009-202, or any other lead-in PAH TPIP study.

Exclusion criteria

* Initiation of parenteral administration of prostacyclin analogues (eg, TRE, epoprostenol) since the completion of studies INS1009-201, INS1009-202 or other TPIP studies. Initiation of inhaled prostacyclin analogues (eg, TRE \[Tyvaso\] or iloprost) and oral prostacyclin analogues (eg, TRE \[Orenitram\]) or receptor agonists (eg, selexipag) are permitted if stopped 24 hours prior to the start of study drug administration. * Any new ventricular or supraventricular tachyarrhythmia except for paroxysmal atrial fibrillation and any new symptomatic bradycardia. * New-onset of heart disease including left ventricular ejection fraction (LVEF) ≤40% or clinically significant valvular, constrictive, or symptomatic atherosclerotic heart disease (eg, stable angina, myocardial infarction, etc). * New evidence of thromboembolic disease as assessed by ventilation/perfusion (VQ) scan, pulmonary angiography, or pulmonary computed tomography (CT) scan. * Active and current symptomatic coronavirus disease 2019 (COVID-19) or previous severe disease and/or hospitalization due to COVID-19. * Interval organ transplantation. * New active liver disease or hepatic dysfunction. * Interval malignancy with exception of completely treated in situ carcinoma of the cervix and completely treated non-metastatic squamous or basal cell carcinoma of the skin. * Use of any investigational drug/device or participation in any investigational study within 30 days prior to screening, not including TPIP of the lead-in study. * Current use of cigarettes (as defined by Centers for Disease Control and Prevention \[CDC\]) or e-cigarettes: An adult who has smoked at least 100 cigarettes in his or her lifetime, who smokes either every day or some days. * Participants who currently inhale marijuana (recreational or medical). Note: Other inclusion/

Design outcomes

Primary

MeasureTime frame
Number of Participants Who Experience at Least one Treatment Emergent Adverse Event (TEAE) and TEAEs by SeverityFrom screening up to last follow up visit (Up to approximately 26 months)

Secondary

MeasureTime frameDescription
Absolute Change From Pre-Open Label Extension (OLE) Baseline in 6-Minute Walk Distance (6MWD)Pre-OLE baseline (baseline of the lead-in TPIP study), Months 6, 12, 18, and 24
Relative Change From Pre-OLE Baseline in 6MWDPre-OLE baseline (baseline of the lead-in TPIP study), Months 6, 12, 18, and 24
Change From Pre-OLE Baseline in the Concentration of N-Terminal Fragment B-Type Natriuretic Peptide (NT-proBNP) in BloodPre-OLE baseline (baseline of the lead-in TPIP study), Months 6, 12, 18, and 24
Change From Pre-OLE Baseline in the Registry to Evaluate Early and Long-Term PAH Disease Management (REVEAL) Lite 2.0 ScorePre-OLE baseline (baseline of the lead-in TPIP study), Months 6, 12, 18, and 24
Change From Pre-OLE Baseline in New York Heart Association/ World Health Organization (NYHA/WHO) Functional Capacity ClassPre-OLE baseline (baseline of the lead-in TPIP study), Months 6, 12, 18, and 24
Annualized Clinical Worsening Event RateOLE Baseline (Day 1) up to Month 24 or early discontinuationAnnualized clinical worsening event rate is defined as the total number of clinical worsening events that occurred during the treatment period divided by the total number of participant-years during the treatment period. Clinical worsening events are one of the following: All-cause death, or onset of TEAE with a fatal outcome occurring ≤ 14 days after study drug discontinuation; Hospitalization for right heart failure (for \> 48 hours), heart-lung or lung transplant, or atrial septostomy; Addition (or increase in dose) of specified PAH-specific medications; Combined occurrence of events including ≥20% decrease in 6MWD, worsening WHO/NYHA functional capacity class, and appearance of or worsening of signs/symptoms of right heart failure from baseline.
Plasma Concentration Levels of Treprostinil Palmitil (TP) and Treprostinil (TRE)OLE Baseline (Day 1), Months 6, 12, 18, and 24

Countries

Argentina, Austria, Belgium, Brazil, Denmark, Germany, Italy, Japan, Malaysia, Mexico, Philippines, Serbia, Spain, United Kingdom, United States

Contacts

STUDY_DIRECTORStudy Director

Insmed Incorporated

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 21, 2026