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Trial registered on ANZCTR
Registration number
ACTRN12611000479909
Ethics application status
Approved
Date submitted
6/05/2011
Date registered
9/05/2011
Date last updated
15/05/2014
Type of registration
Retrospectively registered
Titles & IDs
Public title
Multi-Parametric Cardiovascular Magnetic Resonance Assessment of Hypertrophic Cardiomyopathy
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Scientific title
Multi-Parametric Cardiovascular Magnetic Resonance Assessment of Hypertrophic Cardiomyopathy
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Secondary ID [1]
262125
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None
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Universal Trial Number (UTN)
U1111-1121-1965
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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:
Hypertrophic Cardiomyopathy
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Condition category
Condition code
Cardiovascular
265954
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0
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Other cardiovascular diseases
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
All phenotype positive patients will undergo a 10ml genetic blood test. Patients who are then genotype positive for cardiac myosin binding protein-C mutations or cardiac beta-myosin heavy chain gene mutations will be recruited and undergo baseline cardiac magnetic resonance imaging, cardiac magnetic resonance spectroscopy and echocardiography. These will be repeated at 1, 2 and 4 years.
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Intervention code [1]
264539
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Not applicable
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Comparator / control treatment
Nil
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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Phosphocreatine (PCr)/Adenosinetriphosphate (ATP) ratio. Method: Cardiac magnetic resonance spectroscopy will be used to measure cardiac high energy phosphate metabolism in-vivo. The novel SLOOP method (spatial localisation with optimum pointspread function) allows accurate measurement of absolute concentrations of high-energy phosphates.
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Assessment method [1]
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Timepoint [1]
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4 years for the main study.
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Secondary outcome [1]
276226
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AMPK activity as measured by peripheral blood test
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Assessment method [1]
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Timepoint [1]
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4 years for the main study.
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Secondary outcome [2]
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Absolute concentration of high-energy phosphates as measured by cardiac magnetic spectroscopy.
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Assessment method [2]
276237
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Timepoint [2]
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4 years for the main study.
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Secondary outcome [3]
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LV diastolic function as measured by cardiac magnetic resonance imaging and doppler echocardiography
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Assessment method [3]
276238
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Timepoint [3]
276238
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4 years for the main study.
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Secondary outcome [4]
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regional function as measured by cardiac magnetic resonance imaging
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Assessment method [4]
276239
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Timepoint [4]
276239
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4 years for the main study.
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Secondary outcome [5]
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LV systolic function as measured by cardiac magnetic resonance imaging
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Assessment method [5]
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Timepoint [5]
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4 years for the main study.
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Eligibility
Key inclusion criteria
Hypertrophic cardiomyopathy patients aged between 18 and 75; phenotype positive (established by echocardiography or cardiac magnetic resonance scan); genotype positive for cardiac myosin binding protein-C gene mutations or cardiac beta-myosin heavy chain gene mutations.
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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
Impaired LV systolic function (EF <50%) as detected on echocardiography or cardiac magnetic resonance scan; history of diabetes mellitus, calculated GFR <30mls/hr; significant derranged liver function defined as liver enzymes of 3 x ULN; current therapy with metformin or amiodarone; absolute contraindication of having MRI scan.
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Study design
Purpose
Screening
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Duration
Longitudinal
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Selection
Defined population
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Date of first participant enrolment
Anticipated
5/02/2011
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Actual
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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
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Sample size
Target
120
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Recruitment postcode(s) [1]
3997
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5042
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Funding & Sponsors
Funding source category [1]
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Charities/Societies/Foundations
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Name [1]
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National Heart Foundation
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Address [1]
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Heart Foundation
Research Program
Level 12, 500 Collins Street,
Melbourne VIC 3000,
Australia
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Country [1]
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Australia
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Primary sponsor type
Individual
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Name
Professor Joseph Selvanayagam
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Address
Department of Cardiovascular Medicine
Flinders Medical Centre
1 Flinders Drive
BEDFORD PARK SA 5042
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Country
Australia
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Secondary sponsor category [1]
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Individual
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Name [1]
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Professor John Horowitz
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Address [1]
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Department of Cardiology
The Queen Elizabeth Hospital
Woodville South, Adelaide
South Australia 5011
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Country [1]
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Australia
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Secondary sponsor category [2]
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Individual
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Name [2]
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Professor Christopher Semsarian
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Address [2]
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Molecular Cardiology, Centenary Institute
Royal Prince Alfred Hospital
Missenden Rd
Camperdown, NSW 2050
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Country [2]
264122
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Flinders Clinical Research Ethics Committee
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Ethics committee address [1]
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Flinders Medical Centre Flinders Drive BEDFORD PARK SA 5042
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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09/09/2010
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Approval date [1]
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17/12/2010
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Ethics approval number [1]
267008
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36910
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Summary
Brief summary
Hypertrophic cardiomyopathy (HCM) is the most common cardiovascular genetic disorder and can cause significant morbidity and mortality, including the most serious complications of heart failure and sudden death. At present, there are no proven pharmacological therapies that either prevent or cause regression of clinical features. This is largely due to a lack of knowledge in our understanding of the molecular and functional consequences of the disease-causing gene mutations leading to the clinical disease. The proposed study will aim to test whether cardiac energetic compromise is a central pathophysiological mechanism in HCM. We will investigate potentially beneficial treatments based on our hypothesis of trialling the use of metformin in a HCM group. If the results from this ‘proof of concept study’ are confirmatory, it could pave the way for larger multi-centre randomised studies (with longer duration of treatment) with either metformin or facilitators of fatty acid oxidation such as ranolazine. If realised, these treatments could prevent the vicious cycle of cardiac hypertrophy and myocardial dysfunction seen in HCM, leading to improved morbidity and mortality. These investigations will establish early phenotype changes in HCM patients and provide insights into potential therapeutic interventions for a condition that currently has little therapeutic evidence base.
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Trial website
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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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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 public queries
Name
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Christine Edwards
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Address
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Flinders Clinical Research
Level 3A
Mark Oliphant Building
Laffer Drive
BEDFORD PARK SA 5042
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Country
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Australia
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Phone
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+61 8 8204 5656
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Fax
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+61 8 8204 7047
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Email
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[email protected]
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Contact person for scientific queries
Name
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Professor Joseph Selvanayagam
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Address
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Department of Cardiovascular Medicine
Flinders Medical Centre
1 Flinders Drive
BEDFORD PARK SA 5042
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Country
6752
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Australia
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Phone
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+61 8 8404 2195
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Fax
6752
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Email
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[email protected]
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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
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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