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GI Interlab 2 Study: Measuring the Glycaemic Index (GI) of Foods

NCT ID: NCT00260858

Last Updated: 2006-06-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

280 participants

Study Classification

INTERVENTIONAL

Study Start Date

2005-11-30

Study Completion Date

2006-04-30

Brief Summary

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The purpose of this study is to assess the extent of and sources of variation in the glycaemic index values of foods measured by different laboratories around the world.

Detailed Description

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The glycaemic index values of 3 different foods provided from a central location will be determined in each of 20-30 centers around the world. A standard protocol will be followed, but this protocol leaves room for variation in certain details, such as whether subjects are allowed to have coffee or tea with the test meals or only water, or the method of analyzing blood glucose. Methodologic details, subject demographic information (height, weight, age, and ethnicity), results of local calculations and raw data will be sent to a central location.

Conditions

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Healthy

Keywords

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Glycemic index Nutrition Carbohydrates Glycemic responses Methodology Healthy human subjects

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Interventions

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Test Meal: Reference food (glucose or white bread)

Intervention Type DRUG

Test Meal: Pirate's Booty

Intervention Type DRUG

Test Meal: Ceaprove wafer

Intervention Type DRUG

Test Meal: Stretch Island Strawberry Fruit Leather

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Healthy male or female subjects

Exclusion Criteria

* Diabetes
* Pregnancy or lactation
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Sydney University Glycaemic Index Research Services

UNKNOWN

Sponsor Role collaborator

ILSI Europe

UNKNOWN

Sponsor Role collaborator

Glycaemic Index Testing, Inc.

INDUSTRY

Sponsor Role lead

Principal Investigators

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Thomas MS Wolever, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Toronto

Janette C Brand-Miller, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Sydney

Locations

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Abernethy Research

Gainsville, Florida, United States

Site Status

University of Buffalo

Buffalo, New York, United States

Site Status

Ohio State University

Columbus, Ohio, United States

Site Status

University of Sydney

Sydney, New South Wales, Australia

Site Status

International Diabetes Institute

Melbourne, Victoria, Australia

Site Status

Glycemic Index Laboratories, Inc.

Toronto, Ontario, Canada

Site Status

Institute of Nutrition and Food Safety, Chinese Centre for Disease Control and Prevention

Beijing, Beijing Municipality, China

Site Status

The Royal Veterinary & Agricultural University

Copenhagen, , Denmark

Site Status

National Public Health Institute

Helsinki, Helsinki, Finland

Site Status

Foodfiles Oy

Kuopio, Kuopio, Finland

Site Status

Biofortis

Nantes, Nantes, France

Site Status

German Institute of Human Nutrition

Potsdam-Rehbrucke, Nuthetal, Germany

Site Status

University of Milan

Milan, Milan, Italy

Site Status

University of Parma

Parma, Parma, Italy

Site Status

University Sains Malaysia

Kota Bharu, Kelantan, Malaysia

Site Status

Nutriscience, BV

Maastricht, Maastricht, Netherlands

Site Status

University of Otago

Dunedin, Otago, New Zealand

Site Status

University of the Philippines

Diliman, , Philippines

Site Status

GI Foundation of South Africa

Mbombela, Mpumalanga, South Africa

Site Status

Potchefstroom University

Potchefstroom, Potchesfstroom, South Africa

Site Status

Gotheburg University

Gothenburg, Gotheburg, Sweden

Site Status

Lund University

Lund, Lund, Sweden

Site Status

University of the West Indies

Champs Fleurs, Trinidad, Trinidad and Tobago

Site Status

Reading Scientific Services, Ltd.

Reading, Berkshire, United Kingdom

Site Status

Hammersmith Hospital

London, London, United Kingdom

Site Status

Oxford Brookes University

Oxford, Oxfordshire, United Kingdom

Site Status

University of Surrey

Guildford, Surrey, United Kingdom

Site Status

Leatherhead Food International

Leatherhead, Surrey, United Kingdom

Site Status

Countries

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United States Australia Canada China Denmark Finland France Germany Italy Malaysia Netherlands New Zealand Philippines South Africa Sweden Trinidad and Tobago United Kingdom

References

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Wolever TM, Brand-Miller JC, Abernethy J, Astrup A, Atkinson F, Axelsen M, Bjorck I, Brighenti F, Brown R, Brynes A, Casiraghi MC, Cazaubiel M, Dahlqvist L, Delport E, Denyer GS, Erba D, Frost G, Granfeldt Y, Hampton S, Hart VA, Hatonen KA, Henry CJ, Hertzler S, Hull S, Jerling J, Johnston KL, Lightowler H, Mann N, Morgan L, Panlasigui LN, Pelkman C, Perry T, Pfeiffer AF, Pieters M, Ramdath DD, Ramsingh RT, Robert SD, Robinson C, Sarkkinen E, Scazzina F, Sison DC, Sloth B, Staniforth J, Tapola N, Valsta LM, Verkooijen I, Weickert MO, Weseler AR, Wilkie P, Zhang J. Measuring the glycemic index of foods: interlaboratory study. Am J Clin Nutr. 2008 Jan;87(1):247S-257S. doi: 10.1093/ajcn/87.1.247S.

Reference Type DERIVED
PMID: 18175765 (View on PubMed)

Other Identifiers

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GIL5047

Identifier Type: -

Identifier Source: org_study_id