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Trial registered on ANZCTR
Registration number
ACTRN12614001116617
Ethics application status
Not yet submitted
Date submitted
10/10/2014
Date registered
22/10/2014
Date last updated
22/10/2014
Type of registration
Prospectively registered
Titles & IDs
Public title
Effect of spironolactone on human brown fat in patients with primary aldosteronism
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Scientific title
Effect of spironolactone on human brown fat in patients with primary aldosteronism
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Secondary ID [1]
285483
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None
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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:
Primary aldosteronism
293268
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Obesity
293269
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Condition category
Condition code
Diet and Nutrition
293535
293535
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0
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Obesity
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Metabolic and Endocrine
293582
293582
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0
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Other metabolic disorders
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Intervention/exposure
Study type
Observational
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Patient registry
False
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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
Primary aldosteronism who will be treated with at least 4 weeks of oral spironolactone.
The dose, titration and total duration of treatment will be at the discretion of the treating physician (ie. no influence by the study).
Brown fat activity (on PET-CT scan) and energy expenditures (using indirect calorimetry) will be assessed before and at least 4 weeks of treatment (but no more than 8 weeks)
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Intervention code [1]
290422
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Not applicable
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Comparator / control treatment
Each participant will be assessed before and at least 4 weeks after treatment with sprionolactone (but no more than 8 weeks)
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
293357
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Brown fat volume changes on 18FDG-PET-CT scan
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Assessment method [1]
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Timepoint [1]
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before and at least 4 weeks after treatment with spironolactone (but no more than 8 weeks after treatment commencement)
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Primary outcome [2]
293358
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Brown fat activity changes on 18-FDG-PET-CT scan
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Assessment method [2]
293358
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Timepoint [2]
293358
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before and at least 4 weeks after treatment with sprionolactone (but no more than 8 weeks after treatment commencement)
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Secondary outcome [1]
310837
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changes in resting energy expenditure using indirect calorimetry
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Assessment method [1]
310837
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Timepoint [1]
310837
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before and at least 4 weeks after treatment with spironolactone (but no more than 8 weeks after treatment commencement)
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Secondary outcome [2]
310933
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changes in diet-induced thermogenesis using indirect calorimetry
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Assessment method [2]
310933
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Timepoint [2]
310933
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before and at least 4 weeks after treatment with spironolactone (but no more than 8 weeks after treatment commencement)
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Eligibility
Key inclusion criteria
Subjects with primary aldosteronism who will be treated with at least 4 weeks of spironolactone
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Minimum age
18
Years
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Maximum age
No limit
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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
Pregnancy
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Study design
Purpose
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Duration
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Selection
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Timing
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Statistical methods / analysis
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
15/01/2015
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Actual
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Date of last participant enrolment
Anticipated
30/06/2017
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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
12
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
QLD
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Recruitment hospital [1]
3045
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Princess Alexandra Hospital - Woolloongabba
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Recruitment postcode(s) [1]
8818
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4102 - Woolloongabba
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Funding & Sponsors
Funding source category [1]
290085
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Charities/Societies/Foundations
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Name [1]
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Princess Alexandra Hospital Research Support Scheme/Research Foundation
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Address [1]
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199 Ipswich Road,
Woolloongabba, Qld 4102
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Country [1]
290085
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Australia
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Primary sponsor type
Individual
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Name
Professor Ken Ho
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Address
Level 7, Translational Research Institute
37 Kent Street,
Woolloongabba, Qld 4102
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Country
Australia
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Secondary sponsor category [1]
288783
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Individual
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Name [1]
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Dr Moe Thuzar
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Address [1]
288783
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Level 5, Translational Research Institute
37 Kent Street,
Woolloongabba, Qld 4102
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Country [1]
288783
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Australia
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Other collaborator category [1]
278191
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Individual
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Name [1]
278191
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A/Professor Michael Stowasser
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Address [1]
278191
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Hypertension Unit,
Princess Alexandra Hospita
199 Ipswich Road,
Woolloongabba, Qld 4102
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Country [1]
278191
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Australia
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Other collaborator category [2]
278192
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Individual
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Name [2]
278192
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Dr Phillip Law
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Address [2]
278192
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Department of Radiology/Molecular Imaging
Princess Alexandra Hospital
199 Ipswich Road,
Woolloongabba, Qld 4102
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Country [2]
278192
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Australia
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Other collaborator category [3]
278193
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Individual
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Name [3]
278193
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Dr Goce Dimeski
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Address [3]
278193
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Department of Chemical Pathology
Princess Alexandra Hospital
199 Ipswich Road,
Woolloongabba, Qld 4102
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Country [3]
278193
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Australia
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Ethics approval
Ethics application status
Not yet submitted
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Ethics committee name [1]
291791
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Metro South Health Service District Human Research Ethics Committee
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Ethics committee address [1]
291791
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Level 7, Translational Research Institute 37 Kent Street, Woolloongabba, Qld 4102
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Ethics committee country [1]
291791
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Australia
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Date submitted for ethics approval [1]
291791
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13/10/2014
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Approval date [1]
291791
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Ethics approval number [1]
291791
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Summary
Brief summary
Brown Fat, unlike ordinary 'white fat', functions like generators, burning fat to produce heat and dissipate energy. Brown fat protects animals against cold and from developing obesity. In humans, it was previously believed that brown fat disappears after infancy. However, research including our own has shown that brown fat is present in most if not all adult humans and is located mainly around the neck. Brown fat activity in humans is detected by a PET scan based on uptake of glucose that is tagged with a small amount of radioactivity. This is a widely used diagnostic method in medicine. Brown fat is more abundant in lean than in obese individuals. Stimulating its activity may be a simple way of controlling body weight in humans. Apart from the cold exposure, very little is known about what regulates brown fat in humans. Our research aims to identify factors that regulate brown fat in humans. Aldosterone is a mineralocorticoid hormone produced from the adrenal glands. In animals, it was found that aldosterone suppresses the activity of brown fat and blocking aldosterone action by a medication called spironolactone increases brown fat activity. In this study, we will study in humans whether spironolactone reactivates brown fat activity in subjects with primary aldosteronism and whether the changes in brown fat activity is associated with changes in energy expenditures.
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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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Prof Ken Ho
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Address
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Level 7, Translational Research Institute
37 Kent street,
Woolloongabba, Qld 4102
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Country
52050
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Australia
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Phone
52050
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+61 7 3443 8066
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Fax
52050
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Email
52050
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[email protected]
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Contact person for public queries
Name
52051
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Moe Thuzar
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Address
52051
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Level 5, Translational Research Institute
37 Kent street,
Woolloongabba, Qld 4102
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Country
52051
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Australia
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Phone
52051
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+61 7 3443 7944
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Fax
52051
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Email
52051
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[email protected]
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Contact person for scientific queries
Name
52052
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Ken Ho
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Address
52052
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Level 7, Translational Research Institute
37 Kent street,
Woolloongabba, Qld 4102
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Country
52052
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Australia
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Phone
52052
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+61 7 3443 8066
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Fax
52052
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Email
52052
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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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