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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02279160
Registration number
NCT02279160
Ethics application status
Date submitted
25/10/2014
Date registered
30/10/2014
Date last updated
14/07/2020
Titles & IDs
Public title
Safety and Efficacy of APD811 in Pulmonary Arterial Hypertension
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Scientific title
A Randomized, Double-blind, Parallel-group, Placebo-controlled Phase 2 Trial of Ralinepag, an Oral IP Receptor Agonist, in Patients With Pulmonary Arterial Hypertension
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Secondary ID [1]
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APD811-003
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Pulmonary Arterial Hypertension
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Condition category
Condition code
Respiratory
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Other respiratory disorders / diseases
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Human Genetics and Inherited Disorders
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Other human genetics and inherited disorders
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Cardiovascular
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Hypertension
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Placebo
Experimental: APD811 - Multiple dose titration to maximum tolerated dose.
Placebo comparator: Placebo - Multiple dose titration to maximum tolerated dose.
Treatment: Drugs: Placebo
Placebo
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Change From Baseline in Pulmonary Vascular Resistance (PVR)
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Assessment method [1]
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Measurements of PVR from right heart catheterization were obtained prior to Day 1 of the dose titration period and at the end of the maintenance period (Week 22), approximately 4 hours after the last dose of study drug.
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Timepoint [1]
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Baseline and 22 Weeks
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Primary outcome [2]
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Change From Baseline in 6-minute Walk Distance (6MWD) in Patients With PAH
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Assessment method [2]
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The 6MWT was conducted according to the modified guidelines issued by the American Thoracic Society prior to Day 1 of the dose titration period and at the end of the maintenance period (Week 22).
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Timepoint [2]
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Baseline and 22 Weeks
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Eligibility
Key inclusion criteria
* Males or females aged 18-75 years, inclusive
* Symptomatic WHO Group 1 PAH classified by one of the following subgroups:
* Idiopathic pulmonary arterial hypertension (IPAH);
* Heritable pulmonary arterial hypertension (HPAH);
* Drugs and toxins induced;
* Associated pulmonary arterial hypertension (APAH); specifically connective tissue diseases, HIV infection and congenital heart disease.
* Has had the diagnosis of PAH confirmed by cardiac catheterization
* Has WHO/NYHA functional class II- IV symptomatology
* Previously diagnosed with PAH and on stable oral disease-specific PAH therapy with either an ERA and/or an agent acting on the nitric oxide pathway, i.e. a PDE5 inhibitor or a soluble guanylate cyclase stimulator. Stable is defined as no change in dose within 3 months of the start of Screening and for the duration of the study
* Has 6MWT distances of 100-500 m, and within 15% of each other on 2 consecutive tests done on different days at Screening
* Has pulmonary function tests (PFTs) within 6 months prior to the start of Screening with no evidence of significant parenchymal lung disease
* Has a ventilation-perfusion (V/Q) lung scan or pulmonary angiogram within 5 years prior to Screening and concomitant with or following diagnosis of PAH that shows no evidence of thromboembolic disease
* If on vasodilators (including calcium channel blockers), digoxin, spironolactone, or L-Arginine supplementation; the patient must be on a stable dose for at least 1 month prior to the start of Screening
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Minimum age
18
Years
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Maximum age
75
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Newly diagnosed with PAH and on no disease-specific PAH therapy
* Previous participation in any clinical study with an investigational drug, biologic, or device within 2 months prior to the Screening visit
* Acutely decompensated heart failure within 1 month prior to start of Screening
* Systolic blood pressure <90 mm Hg at Screening
* Evidence or history of left-sided heart disease and/or clinically significant cardiac disease
* Use or chronic administration (defined as >30 days) of a prostacyclin or prostacyclin analogue within 3 months of Screening
* Any previous use of a prostacyclin or prostacyclin analogue that was stopped for safety or tolerability issues associated with pharmacology/mechanism of action
* Other severe acute or chronic medical or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for entry into this study
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 2
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/12/2014
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/06/2017
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Sample size
Target
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Accrual to date
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Final
61
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Recruitment in Australia
Recruitment state(s)
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Recruitment hospital [1]
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The Prince Charles Hospital - Chermside
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Recruitment hospital [2]
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St Vincent's Hospital - Darlinghurst
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Recruitment hospital [3]
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St Vincent's Hospital - Fitzroy
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Recruitment hospital [4]
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Royal Hobart Hospital - Hobart
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Recruitment hospital [5]
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Fiona Stanley Hospital - Murdoch
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Recruitment postcode(s) [1]
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4032 - Chermside
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Recruitment postcode(s) [2]
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2010 - Darlinghurst
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Recruitment postcode(s) [3]
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3065 - Fitzroy
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Recruitment postcode(s) [4]
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7000 - Hobart
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Recruitment postcode(s) [5]
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6150 - Murdoch
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Recruitment outside Australia
Country [1]
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United States of America
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Alabama
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United States of America
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California
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United States of America
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Iowa
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United States of America
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Maryland
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United States of America
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Massachusetts
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United States of America
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Ohio
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United States of America
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Pennsylvania
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United States of America
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Texas
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Bulgaria
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Sofia
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Czechia
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Prague
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Hungary
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Budapest
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Hungary
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Pecs
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Poland
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Bialystok
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Poland
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Krakow
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Poland
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Lodz
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Romania
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Bucharest
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Romania
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Timisoara
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Serbia
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Belgrade
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Serbia
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Sremska Kamenica
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Spain
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Barcelona
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Spain
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Madrid
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
United Therapeutics
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Address
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Ethics approval
Ethics application status
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Summary
Brief summary
The study was conducted as a placebo-controlled, randomized, 22-week double-blind study which included a dose titration period. An additional transition period occurred for those patients who elected to enroll into the open-label extension study, APD811-007. A total of 61 patients with PAH were enrolled.
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Trial website
https://clinicaltrials.gov/study/NCT02279160
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Trial related presentations / publications
Torres F, Farber H, Ristic A, McLaughlin V, Adams J, Zhang J, Klassen P, Shanahan W, Grundy J, Hoffmann I, Cabell C, Escribano Subias P, Sood N, Keogh A, D'Souza G, Rubin L. Efficacy and safety of ralinepag, a novel oral IP agonist, in PAH patients on mono or dual background therapy: results from a phase 2 randomised, parallel group, placebo-controlled trial. Eur Respir J. 2019 Oct 10;54(4):1901030. doi: 10.1183/13993003.01030-2019. Print 2019 Oct. Erratum In: Eur Respir J. 2024 Apr 18;63(4):1951030. doi: 10.1183/13993003.51030-2019.
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Public notes
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Contacts
Principal investigator
Name
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Derek Solum, PhD
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Address
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United Therapeutics
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Fax
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Email
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Contact person for public queries
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Type
Other Details
Attachment
Study protocol
https://cdn.clinicaltrials.gov/large-docs/60/NCT02279160/Prot_000.pdf
Statistical analysis plan
https://cdn.clinicaltrials.gov/large-docs/60/NCT02279160/SAP_001.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT02279160
Download to PDF