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Trial registered on ANZCTR
Registration number
ACTRN12605000412639
Ethics application status
Approved
Date submitted
9/09/2005
Date registered
15/09/2005
Date last updated
15/09/2005
Type of registration
Retrospectively registered
Titles & IDs
Public title
Selenium and Coronary Artery Disease: Should we supplement high risk patients?
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Scientific title
The Effect of Selenium Supplementation on Clinical Outcome in High Risk Cardiac Patients with Coronary Artery Disease
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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:
Coronary Artery Disease
520
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Condition category
Condition code
Cardiovascular
597
597
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0
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Other cardiovascular diseases
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Selenomethionine 100 mcg daily until:
-the patient undergoes surgical intervention or
-until one end point is reached
or
-until the end of the study (3 years).
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Intervention code [1]
430
0
Other interventions
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Comparator / control treatment
Placebo
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Control group
Placebo
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Outcomes
Primary outcome [1]
693
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Death
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Assessment method [1]
693
0
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Timepoint [1]
693
0
Measured during the intervention period
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Primary outcome [2]
694
0
Myocardial infarction
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Assessment method [2]
694
0
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Timepoint [2]
694
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Measured during the intervention period
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Primary outcome [3]
695
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Early surgical or percutaneous intervention due to cardiac deterioration
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Assessment method [3]
695
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Timepoint [3]
695
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Measured during the intervention period
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Secondary outcome [1]
1433
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Selenium level and glutathione peroxidase activity.
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Assessment method [1]
1433
0
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Timepoint [1]
1433
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At baseline and 3 months.
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Eligibility
Key inclusion criteria
3 vessel disease proven by angiography, with no percutaneous or surgical intervention since diagnosis.
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Minimum age
Not stated
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Maximum age
Not stated
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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
Valvular heart disease.
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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)
The allocation is concealed using sealed envelopes.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
computer generated; blocking
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
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Type of endpoint/s
Efficacy
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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
1/10/2004
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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
400
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
193
0
New Zealand
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State/province [1]
193
0
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Funding & Sponsors
Funding source category [1]
651
0
Charities/Societies/Foundations
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Name [1]
651
0
Anderson charitable trust
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Address [1]
651
0
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Country [1]
651
0
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Funding source category [2]
652
0
Commercial sector/Industry
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Name [2]
652
0
Evelyn McInnes Estate
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Address [2]
652
0
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Country [2]
652
0
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Funding source category [3]
653
0
Charities/Societies/Foundations
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Name [3]
653
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Caversham Foundation
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Address [3]
653
0
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Country [3]
653
0
New Zealand
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Funding source category [4]
654
0
Charities/Societies/Foundations
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Name [4]
654
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Southland Medical Foundation
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Address [4]
654
0
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Country [4]
654
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New Zealand
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Primary sponsor type
Individual
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Name
Dr Nathalie van Havre
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Address
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Country
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Secondary sponsor category [1]
547
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University
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Name [1]
547
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University of Otago
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Address [1]
547
0
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Country [1]
547
0
New Zealand
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
1796
0
Otago/Southland
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Ethics committee address [1]
1796
0
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Ethics committee country [1]
1796
0
New Zealand
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Date submitted for ethics approval [1]
1796
0
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Approval date [1]
1796
0
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Ethics approval number [1]
1796
0
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Ethics committee name [2]
1797
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Canterbury in progress
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Ethics committee address [2]
1797
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Ethics committee country [2]
1797
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New Zealand
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Date submitted for ethics approval [2]
1797
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Approval date [2]
1797
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Ethics approval number [2]
1797
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Summary
Brief summary
New Zealand soil and food have a very low selenium content. New Zealanders also have low selenium levels in their blood. This is nothing new for Otago and Southland farmers who have been supplementing livestock for a long time. In previous studies, low selenium has been linked with coronary artery disease. Selenium is essential to the function of a protein called glutathione peroxidase 1 (GPX1). This proteinÿ¿ÿ¢ÿ¿ÿ¿ÿ¿ÿ¿s function is to eliminate toxins in blood vessels. If selenium is low, GPX1 is low and toxins can accumulate and cause narrowing of blood vessels. Researchers at University of Otago have already shown that if selenium supplements are given to New Zealanders, the activity of the enzyme GPX1 increases. Moreover, a study published in the New England Journal of Medicine in 2003 showed that patients with coronary artery disease who have a low GPX1 activity have more ischemic complications (angina and myocardial infarct) than patients with a higher GPX1 activity. Our main goal is to find out whether high risk cardiac patients who are given selenium supplements do better than patients who do not get supplements. Because of the possible interaction between genotype and response to supplements, we are also planning to determine the characteristics of the GPX1 gene for each participant to the study. This could help us find out which patients would benefit from supplements the most. We are planning to enroll up to 400 patients over the next three years.
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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
35678
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Address
35678
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Country
35678
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Phone
35678
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Fax
35678
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Email
35678
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Contact person for public queries
Name
9619
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Dr Nathalie van Havre
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Address
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Southland Medical Foundation
W and GS Dick Senior Research Fellow
Cardiology Section
Department of Medical and Surgical Sciences
University of Otago
PO Box 913
Dunedin
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Country
9619
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New Zealand
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Phone
9619
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+64 3 4740999 (Ext. 8514)
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Fax
9619
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+64 3 4747641
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Email
9619
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[email protected]
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Contact person for scientific queries
Name
547
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Dr Nathalie van Havre
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Address
547
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Southland Medical Foundation
W and GS Dick Senior Research Fellow
Cardiology Section
Department of Medical and Surgical Sciences
University of Otago
PO Box 913
Dunedin
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Country
547
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New Zealand
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Phone
547
0
+64 3 4740999 (Ext. 8514)
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Fax
547
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+64 3 4747641
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Email
547
0
[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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