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WithdrawnNCT01557660INTREPID - OLUpdated Mar 26, 2012

Inhaled Treprostinil for PAH: Open-label Extension

A Phase 3 interventional study of inhaled treprostinil in Pulmonary Arterial Hypertension, sponsored by United Therapeutics. Withdrawn. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2012-03-26.

Sponsored by United Therapeutics · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Open-label extension of RIN-PH-302.

02

Conditions studied

03

In context

Pulmonary Arterial Hypertension

761 studies on the registry are indexed under Pulmonary Arterial Hypertension; 142 are open to participants now.

Browse Pulmonary Arterial Hypertension studies →

Lead sponsor

United Therapeutics is the lead sponsor of 81 studies on the registry; 6 are open to participants now.

Of its 17 completed or terminated interventional studies of FDA-regulated products, 14 (82%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Participation and completion of all required visits for study RIN-PH-302.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    inhaled treprostinil

    Drug: inhaled treprostinil

Interventions

  • Druginhaled treprostinil

    0.6mg/mL inhalation solution, up to 12 breaths four times a day

06

What researchers measure

Primary outcomes

  1. Long term safety of inhaled treprostinil

    Time frame: up to 5 years

Secondary outcomes

  1. Six-minute walk distance

    Time frame: up to 5 years

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 26, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01557660
Lead sponsor
United Therapeutics
Responsible party
Sponsor
First posted
Mar 19, 2012
Start date
Jun 2012
Primary completion
Dec 2018 (estimated)
Completion
Dec 2018 (estimated)
Last update
Mar 26, 2012

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Mar 2012. You cannot join it, but the record below documents what was studied.

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