Status:

COMPLETED

Multinational Study of Efficacy and Safety of Inhaled Treprostinil in Subjects With Idiopathic Pulmonary Fibrosis

Lead Sponsor:

United Therapeutics

Conditions:

Idiopathic Pulmonary Fibrosis

Interstitial Lung Disease

Eligibility:

All Genders

40+ years

Phase:

PHASE3

Brief Summary

Study RIN-PF-303 is a multinational study designed to evaluate the superiority of inhaled treprostinil against placebo for the change in absolute forced vital capacity (FVC) from baseline to Week 52.

Detailed Description

Study RIN-PF-303 is a multinational, randomized, double-blind, placebo-controlled study to evaluate the superiority of inhaled treprostinil against placebo for the change in absolute FVC in subjects w...

Eligibility Criteria

Inclusion

  • Subject gives voluntary informed consent to participate in the study.
  • Subject is ≥40 years of age, inclusive, at the time of signing informed consent.
  • The subject has a diagnosis of IPF based on the 2018 ATS/ERS/JRS/ALAT Clinical Practice Guideline (Raghu 2018) and confirmed by central review of high-resolution computed tomography (HRCT) (performed within the previous 12 months), and if available, surgical lung biopsy.
  • FVC ≥45% predicted at Screening.
  • Subjects on pirfenidone or nintedanib must be on a stable and optimized dose for ≥30 days prior to Baseline. Concomitant use of both pirfenidone and nintedanib is not permitted.
  • Women of childbearing potential must be non-pregnant (as confirmed by a urine pregnancy test at Screening and Baseline) and non-lactating, and will abstain from intercourse (when it is in line with their preferred and usual lifestyle) or use 2 medically acceptable, highly effective forms of contraception for the duration of the study, and at least 30 days after discontinuing study drug.
  • Males with a partner of childbearing potential must use a condom for the duration of treatment and for at least 48 hours after discontinuing study drug.
  • In the opinion of the Investigator, the subject is able to communicate effectively with study personnel, and is considered reliable, willing, and likely to be cooperative with protocol requirements, including attending all study visits.

Exclusion

  • Subject is pregnant or lactating.
  • Subject has primary obstructive airway physiology: FEV1/FVC \<0.70 at Screening.
  • The subject has shown intolerance or significant lack of efficacy to a prostacyclin or prostacyclin analogue that resulted in discontinuation or inability to effectively titrate that therapy.
  • The subject has received any PAH-approved therapy, including prostacyclin therapy (epoprostenol, treprostinil, iloprost, or beraprost; except for acute vasoreactivity testing), IP receptor agonists (selexipag), endothelin receptor antagonists, phosphodiesterase type 5 inhibitors (PDE5-Is), or soluble guanylate cyclase stimulators within 60 days prior to Baseline. As needed use of a PDE5-I for erectile dysfunction is permitted, provided no doses are taken within 48 hours of any study-related efficacy assessments.
  • Use of any of the following medications: azathioprine (AZA), cyclosporine, mycophenolate mofetil, tacrolimus, oral corticosteroids (OCS) \>20 mg/day or the combination of OCS+AZA+N-acetylcysteine within 30 days prior to Baseline; cyclophosphamide within 60 days prior to Baseline; or rituximab within 6 months prior to Baseline.
  • The subject is receiving \>10 L/min of oxygen supplementation by any mode of delivery at rest at Baseline.
  • Exacerbation of IPF or active pulmonary or upper respiratory infection within 30 days prior to Baseline. Subjects must have completed any antibiotic or steroid regimens for treatment of the infection or acute exacerbation more than 30 days prior to Baseline to be eligible. If hospitalized for an acute exacerbation of IPF or a pulmonary or upper respiratory infection, subjects must have been discharged more than 90 days prior to Baseline to be eligible.
  • Uncontrolled cardiac disease, defined as myocardial infarction within 6 months prior to Baseline or unstable angina within 30 days prior to Baseline.
  • In the opinion of the Investigator, the subject has any condition that would interfere with the interpretation of study assessments or would impair study participation or cooperation.
  • Use of any other investigational drug/device or participation in any investigational study in which the subject received a medical intervention (ie, procedure, device, medication/supplement) within 30 days prior to Screening. Subjects participating in non-interventional, observational, or registry studies are eligible.
  • Life expectancy \<6 months due to IPF or a concomitant illness.
  • Acute pulmonary embolism within 90 days prior to Baseline.

Key Trial Info

Start Date :

October 4 2022

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

June 30 2025

Estimated Enrollment :

597 Patients enrolled

Trial Details

Trial ID

NCT05255991

Start Date

October 4 2022

End Date

June 30 2025

Last Update

August 15 2025

Active Locations (108)

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Page 1 of 27 (108 locations)

1

CINME S.A. - Centro de Investigaciones Metabolicas

Ciudad Autonoma de Buenos Aires, Buenos Aires, Argentina, C1027AAP

2

Centro Medico Dra. De Salvo

Ciudad Autonoma de Buenos Aires, Buenos Aires, Argentina, C1426ABP

3

Instituto Ave Pulmo - Fundación enfisema

Mar del Plata, Buenos Aires, Argentina, 7600

4

Sanatorio Allende S.A.

Córdoba, Córdoba Province, Argentina, 5021