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Trial registered on ANZCTR
Registration number
ACTRN12617000903381
Ethics application status
Approved
Date submitted
15/06/2017
Date registered
20/06/2017
Date last updated
20/06/2017
Type of registration
Prospectively registered
Titles & IDs
Public title
Differential effect of single saturated fat feeding interventional trial in on blood triglycerides in healthy individuals.
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Scientific title
Differential effects of short, medium and long chain saturated fatty acids on cardiovascular disease risk factors in healthy adults,
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Secondary ID [1]
291819
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Nil
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Universal Trial Number (UTN)
U1111-1197-6328
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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:
Cardiovascular disease
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Condition category
Condition code
Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Short chain fatty acid (butter 40 gram ), medium chain fats (coconut 40 gram ) and long chain fats (lard 40 gram ). Test food will be delivered in the form of biscuits. Biscuits will be made using wholemeal flour, cornflour, icing sugar and 40 gram lard or coconut or butter. Different flavours like orange, lemon and vanilla will be used to prepare biscuits. Participants should consume 6 biscuits (40gram fats) within 15 minutes in front of study staff. Participants will stay in the research area for at least 6-7 hours. All participants will participate for consuming 3 test food with a week wash out period.
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Intervention code [1]
297933
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Prevention
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Comparator / control treatment
We are comparing between three fatty acids: short chain fatty acid (butter), medium chain fatty acids (coconut oil) and long chain fatty acids (lard).
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Control group
Active
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Outcomes
Primary outcome [1]
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Objective: To compare the differential postprandial effect of short, medium and long chain saturated fats on triglyceride levels.
Primary outcome: Triglyceride
Blood (approximately 440 µL) will be collected from the subject's middle and ring finger in the non-dominant hand using capillary collection tubes before and after 2, 3, 4 and 6 hour of test food consumption. Blood samples will be assessed for blood lipid profiles (total cholesterol, high density lipoprotein cholesterol and triglycerides) using Cardio Check PA (PTS).
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Assessment method [1]
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Timepoint [1]
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Baseline and after 2, 3, 4 and 6 hour of test food consumption.
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Secondary outcome [1]
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Blood samples will be assessed for low density lipoprotein cholesterol (LDL-C) using Cardio Check PA (PTS).
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Assessment method [1]
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Timepoint [1]
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Baseline and after 2, 3, 4 and 6 hour of test food consumption.
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Secondary outcome [2]
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Blood samples will be assessed for high density lipoprotein cholesterol (HDL-C) using Cardio Check PA (PTS).
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Assessment method [2]
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Timepoint [2]
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Baseline and after 2, 3, 4 and 6 hour of test food consumption.
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Secondary outcome [3]
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Blood samples will be assessed for total cholesterol (TC) using Cardio Check PA (PTS).
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Assessment method [3]
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Timepoint [3]
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Baseline and after 2, 3, 4 and 6 hour of test food consumption.
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Eligibility
Key inclusion criteria
Aged 18-65 years, healthy males or females with Body mass index (BMI) between 18 and 25Kg/m2
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Minimum age
18
Years
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Maximum age
64
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
• Have BMI >25 Kg/m2;
• Are pregnant or breast feeding;
• Take any lipid lowering drugs (eg. statins or supplements (e.g. fish oil), or non-steroidal anti-inflammatory drugs (NSAIDs), or anti-hypertensive drugs, or vasodilators, or antioxidants vitamins.
• Are dieting or have any eating disorders;
• Have sensitivity or intolerance to any of the food products or ingredients used in the study;
• Have history of congestive heart failure, stroke, myocardial infarction, coronary artery bypass graft, or atherosclerotic CVD; or pulmonary disease
• Have history of diabetes, hypertension, triglycerides higher than 3.0 mmol/L; total cholesterol higher than 5.5 mmol/L;
• Have history of gastrointestinal disorder, gall bladder disease, or liver disease;
• Taking any dietary supplements that influence blood lipid profile or inflammation;
• Smoke;
• Vegetarian or vegans
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Study design
Purpose of the study
Prevention
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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)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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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
Crossover
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
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Statistical methods / analysis
Based on the anticipated 30% difference in primary outcome, iAUC for postprandial triglyceride levels, at the 0.05 level of significance, 80% power, standard deviation of 114 in iAUC. and 10% dropout rate, n=15 subjects will be required for the cross over design.
The effect of test foods on blood lipids and glucose will be determined by using repeated measure ANOVA with post hoc comparisons (Tukey’s honestly significant difference). Baseline data will be used as covariates and changes from the baselines will be determined using paired t-test. Data will be presented as mean ± standard deviation (SD) or median and interquartile range (IQR) as appropriate, a p-value = 0.05 will be considered significant.
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
24/06/2017
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Actual
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Date of last participant enrolment
Anticipated
13/09/2017
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Actual
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Date of last data collection
Anticipated
13/09/2017
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Actual
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Sample size
Target
15
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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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Funding & Sponsors
Funding source category [1]
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University
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Name [1]
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University of Newcastle
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Address [1]
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University Drive
Callaghan NSW 2308
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Country [1]
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Australia
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Primary sponsor type
University
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Name
University of Newcastle
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Address
University Drive
Callaghan NSW 2308
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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]
295727
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Address [1]
295727
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Country [1]
295727
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
297551
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University of Newcastle Human Research Ethics Committee,
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Ethics committee address [1]
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University Drive Callaghan NSW 2308 Australia
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
297551
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06/12/2016
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Approval date [1]
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23/03/2017
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Ethics approval number [1]
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H-2016-0429
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Summary
Brief summary
In both scientific and public domain, dietary saturated fatty acids (SFAs) are linked with adverse health effects. However, epidemiological and interventional studies have produced contradictory results. Although negative views about SFAs have prevailed, there is increasing evidence to suggest that SFAs are not as harmful as they appear to be and may not be the prime cause of elevated blood lipid levels. Some studies have shown that SFAs induce beneficial effects on blood lipid profiles and that not all SFAs have the same effect on cardiovascular health. SFAs are classified as short (SCFA), medium (MCFA) and long (LCFA) chain fatty acids. SCFA range between 2 to 4 carbons atoms and are found in milk and dairy products. MCFA contain 6 to 12 carbons atoms and are found in coconut oil, palm kernel oil and citrus seeds. LCFA are 14 or more carbons long and are found in animal products like lard, tallow and suet. The digestion, absorbtion and metabolism of fatty acid depends on their chain length. SCFA and MCFA are easily broken down and undergo rapid beta-oxidation for energy production. However LCFA are not easily digested and are deposited in the peripheral tissues. Thus it is convincing to suggest that consumption of SCFA and MCFA, because of their unique structural, absorption and metabolic characteristics can lower blood fat levels and result in less accumulation of fat in the adipose tissues. Evidence from pre-clinical studies have demonstrated that short and medium chain fatty acids do not contribute to obesity, improves blood lipid profiles and other cardiovascular risk factors. If the same is true for humans, naturally occurring SCFA and MCFA intake might help prevent cardiovascular and other chronic diseases. Thus, we hypothesize that short chain saturated fats (butter), medium chain saturated fats (coconut oil) may not be hyperlipidemic as long chain saturated fats (lard).
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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 Manohar Garg
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Address
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Nutraceuticals Research Program
School of Biomedical Sciences & Pharmacy
Callaghan NSW 2308
University of Newcastle
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Country
74410
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Australia
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Phone
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+61-2- 4921 5647
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Fax
74410
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+61-2-4921 2028
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Email
74410
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[email protected]
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Contact person for public queries
Name
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Nisha Panth
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Address
74411
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Level 3, Medical Sciences Building
University Drive
Callaghan NSW 2308
University of NewCastle
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Country
74411
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Australia
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Phone
74411
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+61249215638
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Fax
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+61-2-4921 2028
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Email
74411
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[email protected]
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Contact person for scientific queries
Name
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Nisha Panth
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Address
74412
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Level 3, Medical Sciences Building
University Drive
Callaghan NSW 2308
University of Newcastle
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Country
74412
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Australia
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Phone
74412
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+61249215638
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Fax
74412
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+61-2-4921 2028
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Email
74412
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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
Source
Title
Year of Publication
DOI
Embase
Medium-chain fatty acids lower postprandial lipemia: A randomized crossover trial.
2020
https://dx.doi.org/10.1016/j.clnu.2019.02.008
N.B. These documents automatically identified may not have been verified by the study sponsor.
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