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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT00673894
Registration number
NCT00673894
Ethics application status
Date submitted
6/05/2008
Date registered
7/05/2008
Titles & IDs
Public title
Effects of Glutamine on GLP-1 and Insulin Secretion in Man
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Scientific title
Study of the Effects of Glutamine on Glycemia, Glucagon-like Peptide-1 (GLP-1) and Insulin Secretion in Man
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Secondary ID [1]
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H07/059
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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:
Type 2 Diabetes
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Condition category
Condition code
Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Sitagliptin
Treatment: Drugs - Placebo
Experimental: Glutamine+Sitagliptin - Glutamine 30 g/d (15 g with breakfast and dinner) + Sitagliptin
Placebo comparator: Glutamine+Placebo - Glutamine 30 g/d (15 g with breakfast and dinner) + placebo
Treatment: Drugs: Sitagliptin
Glutamine 30g +sitagliptin 100mg
Treatment: Drugs: Placebo
Glutamine 30g +placebo (matching sitagliptin 100 mg)
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Intervention code [1]
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Treatment: Drugs
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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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Postprandial Glucose Area Under the Curve (AUC)
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Assessment method [1]
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The area under the curve (AUC) of the postprandial glucose following a meal challenge
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Timepoint [1]
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0 to 180 minutes
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Secondary outcome [1]
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Fructosamine
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Assessment method [1]
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The blood concentration of the glycemic control marker fructosamine
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Timepoint [1]
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4 weeks
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Eligibility
Key inclusion criteria
* Type 2 diabetes, on metformin or diet alone (not sulphonylureas or insulin)
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Minimum age
40
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?
No
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Key exclusion criteria
* Malabsorption, renal or liver disease, treatment with steroids
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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 receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Crossover
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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
1/04/2008
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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
1/11/2014
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Sample size
Target
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Accrual to date
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Final
22
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Recruitment in Australia
Recruitment state(s)
NSW
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Recruitment hospital [1]
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Clinical Research Facility - Sydney
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Recruitment postcode(s) [1]
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2010 - Sydney
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Funding & Sponsors
Primary sponsor type
Other
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Name
Garvan Institute of Medical Research
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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
This study investigated the effect of glutamine, an amino acid, glycemia, glucagon-like peptide-1 (GLP-1) and insulin in participants with type 2 diabetes.
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Trial website
https://clinicaltrials.gov/study/NCT00673894
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Trial related presentations / publications
Samocha-Bonet D, Wong O, Synnott EL, Piyaratna N, Douglas A, Gribble FM, Holst JJ, Chisholm DJ, Greenfield JR. Glutamine reduces postprandial glycemia and augments the glucagon-like peptide-1 response in type 2 diabetes patients. J Nutr. 2011 Jul;141(7):1233-8. doi: 10.3945/jn.111.139824. Epub 2011 May 18. Samocha-Bonet D, Chisholm DJ, Holst JJ, Greenfield JR. L-glutamine and whole protein restore first-phase insulin response and increase glucagon-like peptide-1 in type 2 diabetes patients. Nutrients. 2015 Mar 24;7(4):2101-8. doi: 10.3390/nu7042101. Samocha-Bonet D, Chisholm DJ, Gribble FM, Coster AC, Carpenter KH, Jones GR, Holst JJ, Greenfield JR. Glycemic effects and safety of L-Glutamine supplementation with or without sitagliptin in type 2 diabetes patients-a randomized study. PLoS One. 2014 Nov 20;9(11):e113366. doi: 10.1371/journal.pone.0113366. eCollection 2014.
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Public notes
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Contacts
Principal investigator
Name
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Jerry R Greenfield, MD, PhD
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Address
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Garvan Institute of Medical Research
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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
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
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Type
Citations or Other Details
Journal
Samocha-Bonet D, Wong O, Synnott EL, Piyaratna N, ...
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Journal
Samocha-Bonet D, Chisholm DJ, Holst JJ, Greenfield...
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Journal
Samocha-Bonet D, Chisholm DJ, Gribble FM, Coster A...
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Results are available at
https://clinicaltrials.gov/study/NCT00673894