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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT01795950
Registration number
NCT01795950
Ethics application status
Date submitted
12/02/2013
Date registered
21/02/2013
Date last updated
17/02/2016
Titles & IDs
Public title
Safety Study of PLX-PAD Cells to Treat Pulmonary Arterial Hypertension (PAH)
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Scientific title
A Phase I Safety and Pharmacodynamic Study of Intravenous Infusion of PLX-PAD Cells in Patients With PAH
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Secondary ID [1]
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PLX-PH-101
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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 - PLX-PAD
Experimental: 0.5 M PLX-PAD - 0.5 million (M) PLX-PAD cells per kg body weight
Experimental: 1 M PLX-PAD - 1.0 million (M) PLX-PAD cells per kg body weight
Experimental: 2 M PLX-PAD - 2.0 million (M) PLX-PAD cells per kg body weight
Treatment: Drugs: PLX-PAD
intravenous administration of a single dose of PLX-PAD cells
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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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Incidence of treatment-emergent AEs (frequency and severity at each dose level)
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Assessment method [1]
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Timepoint [1]
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12 weeks
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Primary outcome [2]
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Incidence of SAEs
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Assessment method [2]
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Timepoint [2]
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1 year
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Secondary outcome [1]
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Change in Six Minute Walk distance
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Assessment method [1]
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Timepoint [1]
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Baseline and 6 weeks
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Secondary outcome [2]
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Change in Dyspnea Score
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Assessment method [2]
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Change in maximum level of dyspnea experienced during the six minute walk test using a 10 point scale.
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Timepoint [2]
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Baseline and 6 weeks
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Secondary outcome [3]
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Change in WHO Functional Classification
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Assessment method [3]
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Timepoint [3]
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Baseline and 6 weeks
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Secondary outcome [4]
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Change in Plasma NT-pro-BNP levels
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Assessment method [4]
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Timepoint [4]
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Baseline and 6 weeks
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Secondary outcome [5]
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Change from Baseline in echocardiography parameters
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Assessment method [5]
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Change in RV area at end systole and end diastole (for calculation of estimated RV ejection fraction, RV basal and mid diameter at end systole and end diastole, RV free wall thickness, tricuspid annular plane systolic excursion (TAPSE), maximal tricuspid regurgitant jet velocity TRJV) and pulmonary artery end diastolic pressure (PAEDP)
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Timepoint [5]
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Baseline and 6 weeks
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Secondary outcome [6]
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Change in cardiopulmonary hemodynamics
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Assessment method [6]
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mean pulmonary arterial pressure (PAPm), heart rate (HR), systolic systemic arterial pressure (SAPs), diastolic systemic arterial pressure (SAPd), mean systemic arterial pressure (SAPm), pulmonary artery systolic pressure (PAPs), pulmonary artery diastolic pressure (PAPd), mean right atrial pressure (RAPm), mean pulmonary capillary wedge pressure (PCWPm), and cardiac output (CO)
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Timepoint [6]
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Baseline and 6 weeks
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Eligibility
Key inclusion criteria
Summary of inclusion and exclusion criteria.
Eligible subjects:
* Are between 18 and 75 years of age
* Have a minimum weight of 45 kg
* Have a diagnosis of idiopathic or heritable PAH, PAH associated with connective tissue disease (CTD), PAH associated with repaired congenital systemic-to-pulmonary cardiac shunt (at least one year since repair), or PAH associated with appetite suppressant/drug or toxin use confirmed by RHC
* Have a current WHO functional class II or III designation
* Have been stabilized, without dose changes for at least 30 days prior to the Screening visit on at least two approved PAH medications (e.g., PDE-5 inhibitor, ERA, prostanoid [as inhalation or infusion]); or IV prostanoid monotherapy. Subjects on an IV prostanoid must have been receiving therapy for at least three months prior to the Screening visit.
* Have a 6MWD equal to or greater than 200 meters (m) at the Screening and Baseline Visits.
Subjects must not:
* Have any evidence of pulmonary thrombus, significant coronary artery disease (CAD), left ventricular dysfunction, or a restrictive or congestive cardiomyopathy
* Have a history of malignancies within the past 5 years,with the exception of individuals with localized, non-metastatic basal cell carcinoma of the skin, in situ carcinoma of the cervix, or prostate cancer who are not currently or expected to undergo radiation therapy, chemotherapy and/or surgical intervention, or to initiate hormonal treatment during the study
* Be listed for transplantation
* Be pregnant or nursing
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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
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised 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
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 1
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Stopped early
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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
1/04/2013
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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
1/01/2016
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Sample size
Target
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Accrual to date
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Final
6
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Recruitment in Australia
Recruitment state(s)
QLD
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Recruitment hospital [1]
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The Prince Charles Hospital - Brisbane
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Recruitment hospital [2]
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The Alfred Hospital - Melbourne
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Recruitment postcode(s) [1]
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4032 - Brisbane
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Recruitment postcode(s) [2]
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- Melbourne
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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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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
The purpose of this clinical study is to assess the safety of PLX-PAD to treat pulmonary arterial hypertension (PAH). PLX-PAD is a cell-based product made of allogeneic Mesenchymal-like Adherent Stromal Cells (ASCs), derived from human full-term placentas following an elective caesarean section. This year-long study will evaluate the safety of three different dose levels of PLX-PAD, each given as a single intravenous infusion. This study will also evaluate effects that PLX-PAD may have on PAH, such as changes in the ability to exercise and on other tests used to measure the disease severity.
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Trial website
https://clinicaltrials.gov/study/NCT01795950
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Daniel Chambers, MRCP FRACP MD
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Address
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The Prince Charles Hospital
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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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
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT01795950
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