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NCT00125918 · ClinicalTrials.gov registry record · Phase 3

PHIRST-1: Tadalafil in the Treatment of Pulmonary Arterial Hypertension

A Phase 3 study, sponsored by Eli Lilly and Company.

Completed
Registry status
Phase 3
Development phase
406
Enrollment target

NCT00125918: Completed Phase 3 study, sponsored by Eli Lilly and Company.

NCT00125918 is a Phase 3 study that has completed, run by Eli Lilly and Company. The registered enrollment target is 406 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (47% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00125918, a Phase 3 study, has completed, sponsored by Eli Lilly and Company.

COMPLETED
Registry status
Phase 3
Development phase
406 participants
Enrollment target

Study Summary

The purpose of this study is to evaluate the safety and effectiveness of tadalafil for the treatment of pulmonary arterial hypertension.

Interventions

  • DRUG placebo
  • DRUG tadalafil

Trial Details

FieldValue
Enrollment Target 406 participants
Start Date 2005-08
Est. Completion 2007-08
Phase Phase 3
Eli Lilly and Company

1,341 total trials

What the finished NCT00125918 record still lists

NCT00125918 is an interventional study that assigns participants to a tested intervention. The registered 406 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 (47% lower).

The record links to 0 conditions, and to 2 interventions - of which placebo is the first listed.

NCT00125918 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00125918 about?

NCT00125918 is a clinical study titled "PHIRST-1: Tadalafil in the Treatment of Pulmonary Arterial Hypertension". The purpose of this study is to evaluate the safety and effectiveness of tadalafil for the treatment of pulmonary arterial hypertension.

What is the current status of trial NCT00125918?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 406 participants. The study started on 2005-08. Estimated completion is 2007-08.

What interventions are being tested in trial NCT00125918?

The interventions under investigation include: placebo (DRUG), tadalafil (DRUG).

Who is sponsoring clinical trial NCT00125918?

This trial is sponsored by Eli Lilly and Company, which has 1,341 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00125918's enrollment target sits among peer trials

406 913th of 2000 higher than 1,087 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 NCT00125918, the US trial registry maintained by the National Library of Medicine. NCT00125918 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.