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Trial registered on ANZCTR
Registration number
ACTRN12611000258954
Ethics application status
Approved
Date submitted
7/03/2011
Date registered
9/03/2011
Date last updated
28/11/2019
Date data sharing statement initially provided
28/11/2019
Type of registration
Prospectively registered
Titles & IDs
Public title
Assessment of a low energy diet using meal replacements before surgery for weight loss
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Scientific title
Evaluation of a pre-operative meal replacement program in bariatric surgery patients
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Secondary ID [1]
259743
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Nil
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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
261327
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Condition category
Condition code
Diet and Nutrition
259472
259472
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0
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Obesity
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
As part of usual care, patients will be advised to consume 2 commercially available meal replacements, either a shake or a bar, for two meals a day and a commercially available energy controlled normal meal for one meal a day. Patients will also be advised about fruit and vegetable intake and recommended to have two and five serves respectively. Duration of the diet will be prescribed on an individual basis for between 2-6 weeks prior to surgery.
The overall duration of the study will be six months. Patients will be recruited as they are assessed as being eligible for surgery. Each patient will be observed for up to six weeks.
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Intervention code [1]
264173
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Not applicable
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Comparator / control treatment
An additional group of patients that had bariatric surgery between January 1st 2010 and April 18th 2011 will also be invited to participate in the study. They will be identified by their treating physician and if appropriate, will be contacted by phone to ask if they would like to participate. If written approval is received they will be contacted again by phone and interviewed about their weight loss and their compliance with the diet.
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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Weight Loss
Weight loss will be assessed using weighing scales.
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Assessment method [1]
262283
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Timepoint [1]
262283
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Zero and Six Weeks
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Secondary outcome [1]
273456
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Liver Function Tests.
Liver function tests to be measured are GGT, ALP, AST, ALT and Bilirubin and will be measured by a certified commercial laboratory.
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Assessment method [1]
273456
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Timepoint [1]
273456
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Zero and Six Weeks
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Eligibility
Key inclusion criteria
Body Mass Index (BMI) > 40 kg/m2 or > 35 kg/m2 and one obesity related illness/comorbidity
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Minimum age
18
Years
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Maximum age
No limit
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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
Not suitable for bariatric surgery
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Study design
Purpose
Natural history
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Duration
Longitudinal
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Selection
Defined population
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Timing
Both
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Statistical methods / analysis
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Recruitment
Recruitment status
Withdrawn
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Reason for early stopping/withdrawal
Other reasons/comments
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Other reasons
Project did not go ahead.
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Date of first participant enrolment
Anticipated
1/05/2011
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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)
SA
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Recruitment postcode(s) [1]
3858
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5000
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Funding & Sponsors
Funding source category [1]
264620
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Self funded/Unfunded
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Name [1]
264620
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Address [1]
264620
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Country [1]
264620
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Primary sponsor type
University
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Name
University of South Australia
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Address
North Terrace, Adelaide SA 5000
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Country
Australia
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Secondary sponsor category [1]
263758
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University
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Name [1]
263758
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University of South Australia
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Address [1]
263758
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North Terrace, Adelaide SA 5000
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Country [1]
263758
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
266624
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University of South Australia
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Ethics committee address [1]
266624
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North Terrace, Adelaide, SA 5000
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Ethics committee country [1]
266624
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Australia
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Date submitted for ethics approval [1]
266624
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21/03/2011
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Approval date [1]
266624
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28/03/2011
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Ethics approval number [1]
266624
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Ethics committee name [2]
266979
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Calvary Hospital
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Ethics committee address [2]
266979
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North Adelaide
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Ethics committee country [2]
266979
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Australia
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Date submitted for ethics approval [2]
266979
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Approval date [2]
266979
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19/04/2011
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Ethics approval number [2]
266979
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New ethics HREC. Please modify.
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Ethics committee name [3]
266980
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Southern Adelaide Clinical Human Research Ethics Committee
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Ethics committee address [3]
266980
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Bedford Park, South Australia
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Ethics committee country [3]
266980
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Australia
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Date submitted for ethics approval [3]
266980
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Approval date [3]
266980
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02/05/2011
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Ethics approval number [3]
266980
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New ethics HREC. Please modify.
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Summary
Brief summary
The purpose of this study is to assess the effect of the pre-operative very low energy diet on liver function tests and weight loss, and to correlate these outcomes with compliance to the program. Our hypotheses are: 1. Pre-operative weight loss will be associated with an improvement in liver function tests 2. Increased compliance to the program will be associated with greater weight loss
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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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A/Prof Jennifer Keogh
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Address
32317
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University of South Australia North Terrace Adelaide, SA 5000
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Country
32317
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Australia
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Phone
32317
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+61 8 8302 2579
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Fax
32317
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Email
32317
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[email protected]
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Contact person for public queries
Name
15564
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Assoc Prof Jennifer Keogh
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Address
15564
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University of South Australia
North Terrace
Adelaide, SA 5000
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Country
15564
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Australia
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Phone
15564
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+61 8 8302 2579
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Fax
15564
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Email
15564
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[email protected]
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Contact person for scientific queries
Name
6492
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Assoc Prof Jennifer Keogh
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Address
6492
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University of South Australia
North Terrace
Adelaide, SA 5000
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Country
6492
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Australia
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Phone
6492
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+61 8 8302 2579
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Fax
6492
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Email
6492
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
No IPD data will be available as this was not approved by ethics.
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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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