Please note that the copy function is not enabled for this field.
If you wish to
modify
existing outcomes, please copy and paste the current outcome text into the Update field.
LOGIN
CREATE ACCOUNT
LOGIN
CREATE ACCOUNT
MY TRIALS
REGISTER TRIAL
FAQs
HINTS AND TIPS
DEFINITIONS
Trial Review
The ANZCTR website will be unavailable from 1pm until 3pm (AEDT) on Wednesday the 30th of October for website maintenance. Please be sure to log out of the system in order to avoid any loss of data.
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this
information for consumers
Download to PDF
Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02631707
Registration number
NCT02631707
Ethics application status
Date submitted
26/05/2015
Date registered
16/12/2015
Date last updated
27/10/2017
Titles & IDs
Public title
The Effect of High Protein Diets on Weight Loss and Lean Muscle Mass in Patients Awaiting Bariatric Surgery
Query!
Scientific title
The Effect of High Protein Diets on Weight Loss and Lean Muscle Mass in Patients Awaiting Bariatric Surgery
Query!
Secondary ID [1]
0
0
Highproteinbariatric
Query!
Universal Trial Number (UTN)
Query!
Trial acronym
Query!
Linked study record
Query!
Health condition
Health condition(s) or problem(s) studied:
Obesity, Morbid
0
0
Query!
Condition category
Condition code
Diet and Nutrition
0
0
0
0
Query!
Obesity
Query!
Metabolic and Endocrine
0
0
0
0
Query!
Other metabolic disorders
Query!
Intervention/exposure
Study type
Interventional
Query!
Description of intervention(s) / exposure
Other interventions - High protein diet
No intervention: Control Standard Protein Diet - Control Arm Ministry of Health guidelines percentage energy from carbohydrate (50-55%), protein (10-15%) and fat (30%).
Experimental: Intervention High Protein Diet - Intervention Arm Percentage energy from carbohydrate (40%), protein (30%) and fat (30%).
Other interventions: High protein diet
The intervention diet is higher in protein than the control diet.
Query!
Intervention code [1]
0
0
Other interventions
Query!
Comparator / control treatment
Query!
Control group
Query!
Outcomes
Primary outcome [1]
0
0
Change in Weight
Query!
Assessment method [1]
0
0
Scales
Query!
Timepoint [1]
0
0
After 8-weeks of diet and 21-28 days post bariatric surgery
Query!
Primary outcome [2]
0
0
Change in Total body muscle mass
Query!
Assessment method [2]
0
0
Biometric scales
Query!
Timepoint [2]
0
0
After 8-weeks of diet and 21-28 days post bariatric surgery
Query!
Secondary outcome [1]
0
0
Surgical recovery score
Query!
Assessment method [1]
0
0
SRS tool
Query!
Timepoint [1]
0
0
Surgical recovery score 21-28 days post surgery
Query!
Secondary outcome [2]
0
0
compliance
Query!
Assessment method [2]
0
0
urinary creatinine
Query!
Timepoint [2]
0
0
8 weeks
Query!
Eligibility
Key inclusion criteria
* Participants in this study will be patients eligible for bariatric surgery under CMDHB. These participants must have a BMI greater than 35kg/m2 with co-morbidities or a BMI greater than 40kg/m2.
Query!
Minimum age
No limit
Query!
Query!
Maximum age
No limit
Query!
Query!
Sex
Both males and females
Query!
Can healthy volunteers participate?
Yes
Query!
Key exclusion criteria
* Patients will be excluded from study if they do not attend surgeon or dietitian appointments. To be included in this study patients must be English speaking and weigh under 200kg.
Query!
Study design
Purpose of the study
Treatment
Query!
Allocation to intervention
Randomised controlled trial
Query!
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Query!
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Query!
Masking / blinding
Open (masking not used)
Query!
Who is / are masked / blinded?
Query!
Query!
Query!
Query!
Intervention assignment
Parallel
Query!
Other design features
Query!
Phase
NA
Query!
Type of endpoint/s
Query!
Statistical methods / analysis
Query!
Recruitment
Recruitment status
Completed
Query!
Data analysis
Query!
Reason for early stopping/withdrawal
Query!
Other reasons
Query!
Date of first participant enrolment
Anticipated
Query!
Actual
1/05/2015
Query!
Date of last participant enrolment
Anticipated
Query!
Actual
Query!
Date of last data collection
Anticipated
Query!
Actual
1/08/2016
Query!
Sample size
Target
Query!
Accrual to date
Query!
Final
20
Query!
Recruitment in Australia
Recruitment state(s)
Query!
Recruitment outside Australia
Country [1]
0
0
New Zealand
Query!
State/province [1]
0
0
Auckland
Query!
Funding & Sponsors
Primary sponsor type
Other
Query!
Name
University of Auckland, New Zealand
Query!
Address
Query!
Country
Query!
Other collaborator category [1]
0
0
Other
Query!
Name [1]
0
0
Counties Manukau Health
Query!
Address [1]
0
0
Query!
Country [1]
0
0
Query!
Ethics approval
Ethics application status
Query!
Summary
Brief summary
All patients in CMDHB eligible for bariatric surgery are given a weight loss goal prior to surgery. It is unknown what the most effective diet is to lose weight, while still preserving muscle mass. The diet must also be acceptable and adhered to by patients. The aim of this study is to find out if a diet that is higher in protein and lower in carbohydrate than the standard Ministry of Health guidelines will have a greater effect on weight loss, preservation of lean muscle mass, surgical recovery score, adherence and acceptability.
Query!
Trial website
https://clinicaltrials.gov/study/NCT02631707
Query!
Trial related presentations / publications
Query!
Public notes
Query!
Contacts
Principal investigator
Name
0
0
Andrew D MacCormick, FRACS
Query!
Address
0
0
University of Auckland, New Zealand
Query!
Country
0
0
Query!
Phone
0
0
Query!
Fax
0
0
Query!
Email
0
0
Query!
Contact person for public queries
Name
0
0
Query!
Address
0
0
Query!
Country
0
0
Query!
Phone
0
0
Query!
Fax
0
0
Query!
Email
0
0
Query!
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/NCT02631707
Download to PDF