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NCT04708782 · ClinicalTrials.gov registry record · Phase 3

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

A Phase 3 study, sponsored by United Therapeutics.

Completed
Registry status
Phase 3
Development phase
598
Enrollment target

NCT04708782: Completed Phase 3 study, sponsored by United Therapeutics.

NCT04708782 is a Phase 3 study that has completed, run by United Therapeutics. The registered enrollment target is 598 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (23% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04708782, a Phase 3 study, has completed, sponsored by United Therapeutics.

COMPLETED
Registry status
Phase 3
Development phase
598 participants
Enrollment target

Study Summary

Study RIN-PF-301 is designed to evaluate the superiority of inhaled treprostinil against placebo for the change in absolute forced vital capacity (FVC) from baseline to Week 52.

Primary Outcome

The FVC measurement indicates the amount of air a person can forcefully and quickly exhale after taking a deep breath.

Interventions

  • DRUG Placebo
  • DRUG Inhaled Treprostinil
  • DEVICE Treprostinil Ultrasonic Nebulizer

Trial Details

FieldValue
Enrollment Target 598 participants
Start Date 2021-06-01
Est. Completion 2026-02-02
Phase Phase 3
United Therapeutics

63 total trials

What the finished NCT04708782 record still lists

NCT04708782 is an interventional study that assigns participants to a tested intervention. The registered 598 participants enrollment target is mid-sized for trials with a published cap, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (23% lower).

The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.

NCT04708782 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04708782 about?

NCT04708782 is a clinical study titled "Study of Efficacy and Safety of Inhaled Treprostinil in Subjects With Idiopathic Pulmonary Fibrosis". Study RIN-PF-301 is designed to evaluate the superiority of inhaled treprostinil against placebo for the change in absolute forced vital capacity (FVC) from baseline to Week 52.

What is the current status of trial NCT04708782?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 598 participants. The study started on 2021-06-01. Estimated completion is 2026-02-02.

What interventions are being tested in trial NCT04708782?

The interventions under investigation include: Placebo (DRUG), Inhaled Treprostinil (DRUG), Treprostinil Ultrasonic Nebulizer (DEVICE).

Who is sponsoring clinical trial NCT04708782?

This trial is sponsored by United Therapeutics, which has 63 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04708782's enrollment target sits among peer trials

598 640th of 2000 higher than 1,361 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04708782, the US trial registry maintained by the National Library of Medicine. NCT04708782 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.