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Trial registered on ANZCTR
Registration number
ACTRN12611000252910
Ethics application status
Approved
Date submitted
3/03/2011
Date registered
8/03/2011
Date last updated
8/03/2011
Type of registration
Prospectively registered
Titles & IDs
Public title
Nicotinic Acid and Lipoprotein (a): The Effect of Extended Release Nicotinic Acid on Plasma Lipoprotein (a), its Isoforms and apo(a) Fragments
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Scientific title
Effect Of Extended Release Nicotinic Acid On Plasma Lipoprotein (a), Its Isoforms And Apo(a) Fragments.
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Secondary ID [1]
259738
0
n.a.
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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:
Hyperlipidemia
261304
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Condition category
Condition code
Cardiovascular
259451
259451
0
0
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Coronary heart disease
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Extended release niacin
dose: 2g once daily
duration of administration: 8 weeks
mode of administration: oral capsule
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Intervention code [1]
264150
0
Treatment: Drugs
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Comparator / control treatment
none
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
262262
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The primary hypothesis is that ERN decreases plasma concentrations of both high and low molecular weight isoforms of apo by:
a) decreasing the synthesis rate of apo(a)
b) decrease of apo(a) transcription
c) decreasing the assembly of Lp(a)
This will be asessed by plasma and urine assays for Lp(a) and apo(a) isoforms
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Assessment method [1]
262262
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Timepoint [1]
262262
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1,2 and 4 and 12 weeks.
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Secondary outcome [1]
273418
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The secondary hypothesis is that ERN decreases plasma concentrations of both high and low molecular isoforms of apo by increasing urinary apo(a) secretion.
This will be asessed by plasma and urine assays for Lp(a) and apo(a) isoforms
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Assessment method [1]
273418
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Timepoint [1]
273418
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1,2 and 4 and 12 weeks.
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Eligibility
Key inclusion criteria
Approximately 30 participants will be recruited for this study.
As per the protocol all participants will have elevated Lipoprotein (a), already be taking lipid lowering medication, and be either male or female between 18 and 75 years of age. It is expected that the ratio of recruitment will be unbalanced (male (60%) to female (40%) purely due to the incidence of disease in the community.
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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
Children are excluded for legal reasons and pregnant women are excluded due to safety considerations to the unborn.
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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)
subjects will be recruited in cardiology and lipids outpatient clinics
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
not applicable
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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 3 / Phase 4
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Type of endpoint/s
Efficacy
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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
1/04/2011
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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
30
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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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Funding & Sponsors
Funding source category [1]
264604
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Commercial sector/Industry
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Name [1]
264604
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MSD
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Address [1]
264604
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54-68 Ferndell Street, South Granville, NSW 2142, Australia
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Country [1]
264604
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Australia
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Primary sponsor type
Individual
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Name
A/Prof. K.Kostner
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Address
Mater Adult Hospital, Raymond Terrace 100 , 4101 Qld, Brisbane, Australia
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Country
Australia
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Secondary sponsor category [1]
263744
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None
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Name [1]
263744
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Address [1]
263744
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Country [1]
263744
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
260599
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University of Queensland
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Ethics committee address [1]
260599
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Cumbrae-Stewart Building , Research Road 1, 4072 Qld, Brisbane, Australia
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Ethics committee country [1]
260599
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Australia
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Date submitted for ethics approval [1]
260599
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Approval date [1]
260599
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02/03/2011
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Ethics approval number [1]
260599
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2011000136
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Summary
Brief summary
Lipoprotein(a) [Lp(a)] is one of the most atherogenic lipoproteins and consists of a glycoprotein called apo(a) which is covalently linked to an LDL particle. Lp(a) is mostly synthesized in the liver and metabolized both via the kidney and liver. A size polymorphism of apo(a) (high and low molecular weight isoforms) exists that negatively correlates with plasma Lp(a) levels. We could previously show that fragments of apo(a) are secreted into the urine and the daily secretion rate correlates with plasma Lp(a) concentrations. Nicotinic acid (NA) and extended release nicotinic acid (ERN) are currently the only lipid lowering drugs that consistently reduce plasma Lp(a) by up to 30%. Since the mechanism by which ERN lowers Lp(a) is not entirely clear we aim to investigate this mechanism in vivo and in vitro.
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Trial website
none
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Trial related presentations / publications
none yet
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Public notes
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Contacts
Principal investigator
Name
32306
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Address
32306
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Country
32306
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Phone
32306
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Fax
32306
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Email
32306
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Contact person for public queries
Name
15553
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A/Prof. Karam Kostner
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Address
15553
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Mater Adult Hospital, Cardiology Department
Raymond TCE 100, 4101, Brisbane, Australia
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Country
15553
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Australia
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Phone
15553
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+61 7 31636793
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Fax
15553
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+617 31636750
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Email
15553
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[email protected]
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Contact person for scientific queries
Name
6481
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A/Prof. K.Kostner
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Address
6481
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Mater Adult Hospital, Cardiology Department
Raymond TCE 100, 4101, Brisbane, Australia
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Country
6481
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Australia
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Phone
6481
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+61 7 31636793
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Fax
6481
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+61 7 31636750
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Email
6481
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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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