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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT00870259
Registration number
NCT00870259
Ethics application status
Date submitted
26/03/2009
Date registered
27/03/2009
Date last updated
5/12/2014
Titles & IDs
Public title
Investigating Physiological Adaptations to Weight Loss
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Scientific title
An Investigation of Physiological Adaptations Contributing to Weight Regain After Weight Loss
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Secondary ID [1]
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HP 508920
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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
Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Other - Optifast VLCD
Treatment: Other: Optifast VLCD
Meal replacement, three times daily for 8 weeks
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Intervention code [1]
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Treatment: Other
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Difference in fasting and/or post-prandial hormone levels following weight loss and after weight maintenance compared with baseline
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Assessment method [1]
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Timepoint [1]
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2, 6 and 12 months
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Secondary outcome [1]
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Difference in fasting and/or post-prandial hormone levels in ketotic compared with non-ketotic state
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Assessment method [1]
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Timepoint [1]
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week 8 vs week 10
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Secondary outcome [2]
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Correlation of fasting and post-prandial hormone levels with ratings of hunger and satiety
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Assessment method [2]
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Timepoint [2]
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0, 2, 6 and 12 months
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Secondary outcome [3]
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Association of psychosocial factors with successful weight maintenance
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Assessment method [3]
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Timepoint [3]
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12 months
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Eligibility
Key inclusion criteria
* males and post-menopausal females
* aged over 18 years
* BMI 27-40kg/m2
* weight-stable
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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?
Yes
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Key exclusion criteria
* major comorbid medial condition (including diabetes)
* taking medications known to affect weight
* smoking
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Study design
Purpose of the study
Other
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Allocation to intervention
NA
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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
Single group
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Other design features
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Phase
NA
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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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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/02/2008
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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
1/12/2009
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Sample size
Target
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Accrual to date
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Final
50
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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Heidelberg Repatriation Hospital - Melbourne
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Recruitment postcode(s) [1]
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3081 - Melbourne
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of Melbourne
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
The purpose of this study is to examine the effect of diet-induced weight loss on the levels of circulating nutrients and hormones which are involved in feelings of hunger and satiety.
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Trial website
https://clinicaltrials.gov/study/NCT00870259
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Trial related presentations / publications
Sumithran P, Prendergast LA, Delbridge E, Purcell K, Shulkes A, Kriketos A, Proietto J. Long-term persistence of hormonal adaptations to weight loss. N Engl J Med. 2011 Oct 27;365(17):1597-604. doi: 10.1056/NEJMoa1105816.
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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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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 scientific queries
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
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT00870259
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