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Trial registered on ANZCTR
Registration number
ACTRN12609000418279
Ethics application status
Approved
Date submitted
22/04/2009
Date registered
9/06/2009
Date last updated
6/07/2012
Type of registration
Retrospectively registered
Titles & IDs
Public title
The ability of dietary calcium to influence fat oxidation, glucose levels and satiety in caucasian adults.
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Scientific title
The role of calcium in the modulation of postprandial substrate oxidation following sequential meals in caucasian human subjects.
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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:
obesity
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Condition category
Condition code
Diet and Nutrition
4947
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0
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Obesity
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Randomized, within-subject trial comparing two breakfast-lunch combinations that only differ in calcium content of breakfast (~250mg versus 550mg). Each combination will be adminstered on one occassion only, in a random order. Volunteers will crossover to the second combination following a 2 week washout period. Breakfast will consist of rolled oats, sultanas, cream, milk and sugar while lunch will consist of a white bread sandwich of ham, tomato, butter with a serving of fruit and fruit juice.
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Intervention code [1]
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Lifestyle
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Intervention code [2]
4408
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Prevention
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Comparator / control treatment
The low calcium (~250mg) breakfast-standard lunch combination is the comparator treatment. Each breakfast-lunch combination will be adminstered on one occassion only, in a random order, and volunteers will crossover to the alternative combination following a 2 week washout period.
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Control group
Active
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Outcomes
Primary outcome [1]
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Whole body fat oxidation based on indirect calorimetry
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Assessment method [1]
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Timepoint [1]
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Baseline and every 30 minutes for 8 hours following consumption of breakfast meal.
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Secondary outcome [1]
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subjective hunger/satiety ratings using 10 cm visual analogue scales.
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Assessment method [1]
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Timepoint [1]
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Baseline and every 30 minutes for 8 hours following consumption of breakfast meal.
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Secondary outcome [2]
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insulin and glucose responses from venous blood samples
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Assessment method [2]
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Timepoint [2]
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Baseline and every 30 minutes for 8 hours following consumption of breakfast meal.
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Secondary outcome [3]
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Reported food intake using a food diary
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Assessment method [3]
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Timepoint [3]
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A buffet meal will be served 4 hr after lunch and will consist of a choice of bread, pumpkin soup, cheese, carrot sticks, crackers, almonds, apricots, baked apple bar, fruit in juice, milk chocolate, orange juice, tea and coffee. Volunteers will record their food intake for 30h after the buffet.
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Eligibility
Key inclusion criteria
Caucasian adults, body mass index >20 kg/m2, weight stable over last 6 months, < 2 alcoholic drinks per day.
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Minimum age
20
Years
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Maximum age
70
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
lactose intolerance or gastrointestinal disturbances, hormone replacement therapy, medications for systemic diseases or vitamin/mineral supplements
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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)
Allocation is not concealed
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
simple randomisation through coin toss
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Masking / blinding
Blinded (masking 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
Efficacy
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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
12/05/2003
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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
15
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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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Recruitment postcode(s) [1]
1675
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6100
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Recruitment postcode(s) [2]
1676
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6102
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Recruitment postcode(s) [3]
1677
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6152
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Recruitment postcode(s) [4]
1678
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6000
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Funding & Sponsors
Funding source category [1]
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Commercial sector/Industry
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Name [1]
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Dairy Australia
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Address [1]
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Level 5, IBM Centre, 60 City Road
Southbank, Victoria 3006
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Country [1]
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Australia
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Primary sponsor type
University
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Name
Curtin University of Technology
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Address
School of Public Health
GPO Box U1987,
Bentley Campus Perth WA 6845
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Country
Australia
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Secondary sponsor category [1]
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Individual
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Name [1]
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Dr Mario Soares
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Address [1]
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School of Public Health
Program of Nutrition,
GPO Box U1987,
Bentley Campus Perth WA 6845
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Country [1]
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Curtin Human Research Ethics Committee
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Ethics committee address [1]
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Office of Research & Development
Curtin University of Technology
GPO Box U1987,
Bentley Campus, Perth WA 6845
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
6882
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Approval date [1]
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17/04/2003
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Ethics approval number [1]
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HR 42/2003
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Summary
Brief summary
The primary purpose of this study is to examine whether a change in calcium intake at one meal modifies the way in which we handle the subsequent meal. We believe that increasing calcium intake at breakfast improves the body's ability to handle glucose following lunch, while promoting utilization of fat and suppressing subjective ratings of hunger.
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Trial website
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Trial related presentations / publications
M J Soares and W Chan She Ping-Delfos. Second meal effects of dietary calcium and vitamin D. European Journal of Clinical Nutrition (2008) 62, 872–878; doi:10.1038/sj.ejcn.1602803; published online 23 May 2007.
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Dr. Mario Soares
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Address
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School of Public Health
GPO Box U1987,
Bentley Campus Perth WA 6845
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Country
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Australia
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Phone
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+61 8 9266 3220
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Fax
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+61 8 9266 2958
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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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Dr. Mario Soares
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Address
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School of Public Health
GPO Box U1987,
Bentley Campus Perth WA 6845
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Country
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Australia
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Phone
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+61 8 9266 3220
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Fax
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+61 8 9266 2958
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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
Source
Title
Year of Publication
DOI
Embase
Diet induced thermogenesis, fat oxidation and food intake following sequential meals: Influence of calcium and vitamin D.
2011
https://dx.doi.org/10.1016/j.clnu.2010.11.006
N.B. These documents automatically identified may not have been verified by the study sponsor.
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