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Trial registered on ANZCTR
Registration number
ACTRN12614001045606
Ethics application status
Approved
Date submitted
19/09/2014
Date registered
29/09/2014
Date last updated
29/09/2014
Type of registration
Prospectively registered
Titles & IDs
Public title
How androgens exert their anabolic effects: effects of oral testosterone on protein metabolism in healthy men.
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Scientific title
How androgens exert their anabolic effects.
Effects of oral testosterone on protein metabolism in healthy men.
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Secondary ID [1]
285369
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Nil
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Universal Trial Number (UTN)
U1111-1161-9688
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Trial acronym
Oral testosterone study
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Protein metabolism in healthy men
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Condition category
Condition code
Metabolic and Endocrine
293375
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0
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Normal metabolism and endocrine development and function
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Oral micronised testosterone 40 mg daily for 14 days.
Adherence to treatment will be monitored by drug return.
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Intervention code [1]
290284
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Treatment: Drugs
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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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Protein turnover by using stable isotopes (leucine)
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Assessment method [1]
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Timepoint [1]
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2 weeks
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Secondary outcome [1]
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Nil
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Assessment method [1]
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Timepoint [1]
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Nil
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Eligibility
Key inclusion criteria
Healthy men
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Minimum age
60
Years
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Maximum age
75
Years
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Sex
Males
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Endocrine disorders
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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)
na
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
na
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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 4
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
Anova.
Sample size has been derived from previously published studies in hypogonadal men and postmenopausal women, where similar dose of oral testosterone significantly modified protein turnover.
Extrapolating from these studies with power of 80% a sample size of at least 8 will give p<0.05.
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
1/10/2014
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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
8
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
NSW
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Recruitment hospital [1]
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Blacktown Hospital - Blacktown
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Recruitment postcode(s) [1]
8717
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2148 - Blacktown
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Funding & Sponsors
Funding source category [1]
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Government body
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Name [1]
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NHMRC
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Address [1]
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National Health and Medical Research Council
GPO Box 1421
Canberra ACT 2601
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Country [1]
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Australia
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Primary sponsor type
Other Collaborative groups
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Name
Garvan Institute
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Address
Victoria St Darlinghurst, NSW, 2010
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
288667
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Address [1]
288667
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Country [1]
288667
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Western Sydney Local Health District HREC
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Ethics committee address [1]
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WSLHD, Westmead Hospital, Darcy Rd Westmead, NSW 2145
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
291691
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Approval date [1]
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11/09/2014
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Ethics approval number [1]
291691
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Summary
Brief summary
Observations from previous studies suggest that testosterone acts on liver to induce protein anabolic effect. We will test the hypothesis that testosterone by acting on the liver, preserves protein loss in healthy men.
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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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Dr Vita Birzniece
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Address
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UWS Clinical School and Research Centre
Blacktown Hospital,
18 Blacktown Rd
Blacktown, NSW 2148
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Country
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Australia
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Phone
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+61 2 98516059
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Vita Birzniece
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Address
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UWS Clinical School and Research Centre
Blacktown Hospital
18 Blacktown Rd
Blacktown, NSW 2148
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Country
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Australia
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Phone
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+61 2 98516059
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Fax
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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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Vita Birzniece
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Address
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UWS Clinical School and Research Centre
Blacktown Hospital
18 Blacktown Rd
Blacktown, NSW 2148
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Country
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Australia
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Phone
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+61 2 98516059
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Fax
51548
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Email
51548
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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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