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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT00782262
Registration number
NCT00782262
Ethics application status
Date submitted
28/10/2008
Date registered
31/10/2008
Date last updated
31/10/2008
Titles & IDs
Public title
Weight Loss Effects on Heart and Blood Vessel Function in Obesity
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Scientific title
Effects of Obesity and Diet Induced Weight Loss on Cardiovascular Risk Factors, Vascular and Ventricular Structure and Function in Obese Men
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Secondary ID [1]
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050226
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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
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Obesity
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Metabolic and Endocrine
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Other metabolic disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Other - KicStart™
Other: Group 1 (n=20) - BP \< 140/90, no diabetes mellitus and fasting glucose \< 5.5
Other: Group 2 (n=20) - BP \> 140/100, no diabetes mellitus and fasting glucose \< 5.5
Other: Group 3 (n=20) - BP \<140/100, no diabetes mellitus, fasting glucose 5.5 - 6.9
Treatment: Other: KicStart™
KicStart™ is a nutritionally complete, but lower energy formulated liquid meal. Two sachets of KicStart™ (one for breakfast and one for lunch) provides 450 cal of energy per day, 0.8 grams per kilogram ideal body weight of high quality protein, and the recommended daily allowances (RDI) of minerals, vitamins, trace elements, omega 3 and 6 essential fatty acids. The Kicstart is supplemented with some salads, carbohydrate free vegetables and a small piece of meat fish or chicken each day in order to achieve a total energy intake of approximately 850 kcals/day.
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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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This will be the first analysis of the impact of rapid aggressive weight loss in obese individuals on both short and long-term cardiovascular indices.
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Assessment method [1]
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Timepoint [1]
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4 years
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Eligibility
Key inclusion criteria
* Obese Caucasian men age 18-65 years, who are non smokers, and consuming 2 or fewer standard alcoholic drinks per day (on average over the past 5 years) will be recruited.
* Obesity, for the purposes of this study, is defined by a BMI > 30 and a waist circumference > 102 cm.
* Caucasian men only are enrolled because the cut-off points for the definition of obesity vary significantly by race.
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Minimum age
18
Years
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Maximum age
65
Years
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Sex
Males
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
* Men are excluded if they have any previously diagnoses or symptomatic atherosclerotic disease, or are taking any cardiovascular medication.
* Men with known gallstones, history of gout, or any contraindication to MRI are also excluded.
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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)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people assessing the outcomes
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 2
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
UNKNOWN
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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
1/04/2005
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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
60
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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 hospital [1]
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University of Adelaide, Royal Adelaide Hospital - Adelaide
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Recruitment postcode(s) [1]
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5000 - Adelaide
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of Adelaide
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Address
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Country
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Other collaborator category [1]
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Other
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Name [1]
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Royal Adelaide Hospital
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
Obesity is a growing epidemic and is associated with an increased risk of heart attack and stroke. The investigators know that obesity leads to abnormalities in how the blood vessels and the heart function and that these abnormalities are an important cause of this increased risk in obese individuals. While improvements in these abnormalities have been reported with marked weight reduction (eg surgery) and lifestyle changes including exercise training, it is not clear that these abnormalities can be substantially reversed with standard dietary interventions. Additional information is needed regarding the degree of weight loss required, the time course of these improvements, nor the mechanisms. All of these have major implications for the potential role of weight loss in the management of these patients. The investigators will assess the effects of dietary induced weight loss in both the short and long term on the function of blood vessels and the heart, and the relationship of any changes with markers of inflammation that are present in obesity. By understanding the factors that are important in reversing these abnormalities in obesity the investigators will be better to identify and reduce heart attack and stroke in obese individuals in the future.
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Trial website
https://clinicaltrials.gov/study/NCT00782262
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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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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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Cynthia Piantadosi, PhD
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Address
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Country
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Phone
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61 8 82222473
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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
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/NCT00782262
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