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Trial registered on ANZCTR
Registration number
ACTRN12615000757516
Ethics application status
Approved
Date submitted
25/06/2015
Date registered
21/07/2015
Date last updated
8/02/2016
Type of registration
Retrospectively registered
Titles & IDs
Public title
The effect of canola oil diet supplementation on fatty liver in young obese females in Bali
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Scientific title
The effect of canola oil diet supplementation on liver steatosis, lipid accumulation product, and fatty liver index in young obese females in Bali
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Secondary ID [1]
286978
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None
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Universal Trial Number (UTN)
U1111-1171-5425
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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:
Obesity
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Liver steatosis
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Condition category
Condition code
Diet and Nutrition
295690
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0
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Obesity
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Oral and Gastrointestinal
295768
295768
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0
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Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
30 ml emulsion consisted of 10 g canola oil (2000 mg linoleic acid (LA), and 1000 mg a-linolenic acid (ALA), n-6:n-3 PUFA ratio 2:1). This intervention was administered once daily. The duration of the intervention was 12 weeks. The mode of administration was oral syrup, monitored weekly by bringing back the bottles. All subjects were recommended for restricted daily energy intake below 1500 kcal and exercise once a week. Diet consultation and exercise were conducted weekly, at the same time of the monitoring.
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Intervention code [1]
292186
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Treatment: Other
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Comparator / control treatment
2 gram of palm oil
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Control group
Placebo
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Outcomes
Primary outcome [1]
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Changes of lipid accumulation product, assessed by an algorithm based on waist circumference and triglyceride.
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Assessment method [1]
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Timepoint [1]
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At 0, 6 and 12 weeks
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Primary outcome [2]
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Changes of fatty liver index, assessed by an algorithm based on BMI, waist circumference, triglyceride and gamma-glutamyl transferase.
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Assessment method [2]
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Timepoint [2]
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At 0, 6 and 12 weeks
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Primary outcome [3]
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Changes in liver steatosis, assessed by ultrasonography.
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Assessment method [3]
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Timepoint [3]
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At 0 and 12 weeks
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Secondary outcome [1]
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Changes of TNF alpha and IL-10 levels will be determined, measured by ELISA.
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Assessment method [1]
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Timepoint [1]
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At 0, 6 and 12 weeks
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Secondary outcome [2]
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Anthropometry changes will be assessed, determined by changes in BMI and waist cricumference.
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Assessment method [2]
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Timepoint [2]
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At 0, 6 and 12 weeks
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Eligibility
Key inclusion criteria
Obese (BMI > 25kg/m2)
Female
Age 18 - 25 years old
Unmarried
Not necessarily to have liver steatosis
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Minimum age
18
Years
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Maximum age
25
Years
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Sex
Females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Taking pharmacologic and/or herbal regiment to loose weight
Daily intake of antioxidant, vitamins, minerals or other food supplement
Under treatment of chronic disease
Under influence of corticosteroidand/or other anti-inflammatory medicine
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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)
Numbered bottles. The pharmacist who prepared the emulsion will write numbers on bottles.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Permuted block randomization
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
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Intervention assignment
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Other design features
Parallel
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Phase
Not Applicable
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
12/05/2013
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Actual
12/05/2013
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Date of last participant enrolment
Anticipated
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Actual
2/06/2013
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
74
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
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Indonesia
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State/province [1]
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Denpasar, Bali
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Funding & Sponsors
Funding source category [1]
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Charities/Societies/Foundations
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Name [1]
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Indonesian Danone Institute Foundation
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Address [1]
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Cyber 2 Tower 9th Floor, Jl. H.R. Rasuna Said Blok X-5 No. 13, Jakarta 12950
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Country [1]
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Indonesia
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Primary sponsor type
Individual
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Name
Dr. I Wayan Weta
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Address
Faculty of Medicine, Udayana University, Jl. P.B. Sudirman, Denpasar, Bali 80232
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Country
Indonesia
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
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Country [1]
290216
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Research Ethics Committee of Udayana University/Sanglah Hospital
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Ethics committee address [1]
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Jl. Diponegoro, Denpasar, Bali 80114
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Ethics committee country [1]
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Indonesia
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Date submitted for ethics approval [1]
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Approval date [1]
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17/09/2012
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Ethics approval number [1]
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787/UN.14.2/ Litbang/2012
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Summary
Brief summary
Background: Morbidity of obesity increases in population of most countries as a result of high carbohydrate and fat diet as well as sedentary lifestyle. Lipid accumulation in obesity is associated with non-alcoholic fatty liver disease (NAFLD). This condition is precipitated by a high ratio of n-6:n-3 poly-unsaturated fatty acid (PUFA) commonly found in daily intake of most population. Therefore, diet intervention that might reduce the n6:n3 PUFA ratio would eventually help reduce obesity and improve NAFLD. Methods: We conducted a triple blind (subjects, assessors, and investigators) randomized clinical trial, involving 66 young obese females in Denpasar, Bali, Indonesia. Subjects were divided into two groups: 33 with (+CO) and 33 without (-CO) canola oil intervention, for 12 weeks. Data were collected before the study (pre), at 6 weeks (mid) and 12 weeks (post). The +CO group was supplemented with 30 ml emulsion consisted of 10 g canola oil (2000 mg linoleic acid (LA), and 1000 mg a-linolenic acid (ALA), n-6:n-3 PUFA ratio 2:1), and the -CO group with 30 ml emulsion of placebo. All subjects were recommended for restricted daily energy intake below 1500 kcal and exercise once a week. Independent variables of body mass index (BMI), waist circumference (WC), triglyceride (TG), and gamma-glutamyl transferase (GGT) were measured. Liver steatosis was assessed using ultrasonography (USG). Lipid accumulation product (LAP) and fatty liver index (FLI) were calculated. Results: We observed significant decrease of LAP and FLI in the +CO group, respectively. Canola oil supplementation for twelve weeks has prevented and improved liver steatosis of obese subjects. Independently from the intervention, there were strong correlations among LAP, FLI and liver steatosis. Strong correlations were also observed between pre and mid LAP and FLI to post liver steatosis. FLI showed a consistent specific correlation with all stages of liver steatosis, and the correlation was even stronger in higher stage of liver steatosis. Conclusion: Supplementation of 10 g canola oil daily for 12 weeks decreased LAP, FLI, and liver steatosis in young obese females in Denpasar, Bali, Indonesia. LAP and FLI were good predictors of liver steatosis. However, FLI was a better and more specific predictor for progression of higher stage of liver steatosis when compared to LAP.
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Trial website
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Trial related presentations / publications
PhD thesis defense. I Wayan Weta. N-6:N-3 POLYUNSATURATED FATTY ACID RATIO 2:1 DECREASES SERUM TNFalpha AND INCREASES IL10, AS WELL AS IMPROVES FATTY LIVER INDEX IN YOUNG OBESE FEMALES. Poat Graduate Program. Udayana University. 14 July 2014. Denpasar. Bali.
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Public notes
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Contacts
Principal investigator
Name
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Dr I Wayan Weta
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Address
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Faculty of Medicine, Udayana University
Jl. PB Sudirman, Denpasar, Bali 80232
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Country
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Indonesia
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Phone
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+6281337005360
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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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I Wayan Weta
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Address
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Faculty of Medicine, Udayana University
Jl. PB Sudirman, Denpasar, Bali 80232
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Country
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Indonesia
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Phone
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+6281337005360
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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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I Wayan Weta
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Address
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Faculty of Medicine, Udayana University
Jl. PB Sudirman, Denpasar, Bali 80232
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Country
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Indonesia
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Phone
58372
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+6281337005360
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Fax
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Email
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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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