Reduction of the Glycemic Index by a Novel Viscous Polysaccharide

This study has been completed.
Sponsor:
Collaborators:
InovoBiologic Inc.
Canadian Center for Functional Medicine
Information provided by:
Glycemic Index Laboratories, Inc
ClinicalTrials.gov Identifier:
NCT00935350
First received: March 25, 2009
Last updated: July 8, 2009
Last verified: July 2009

March 25, 2009
July 8, 2009
May 2006
June 2006   (final data collection date for primary outcome measure)
Relative Blood glucose response of food with and without NVP [ Time Frame: Acute blood glucose response measured at 0, 15,30,45,60,90 and 120 min ] [ Designated as safety issue: No ]
Same as current
Complete list of historical versions of study NCT00935350 on ClinicalTrials.gov Archive Site
Not Provided
Not Provided
Not Provided
Not Provided
 
Reduction of the Glycemic Index by a Novel Viscous Polysaccharide
Effect of Adding the Novel Fiber, PGX®,to Commonly Consumed Foods on Glycemic Response and Glycemic Index: A Practical and Effective Strategy for Reducing Post Prandial Blood Glucose Levels.

Reductions of postprandial glucose levels have been demonstrated previously with the addition of a novel viscous polysaccharide (NVP) to a glucose drink and standard white bread. This study explores whether these reductions are sustained when NVP is added to a range of commonly consumed foods.

Recently, a commercial novel viscous polysaccharide (NVP)complex has been developed which is marketed in both the USA and Canada under the trade name PGX® (PolyGlycopleX) (InovoBiologic Inc, Calgary, AB, Canada). This complex consists of three viscous non starch polysaccharides which are processed using proprietary technology (EnviroSimplex®) to produce compressed granules which delays the onset of viscosity and increases palatability of the fiber when added to food. Previously, this fibre was shown to lower postprandial glucose levels in a dose responsive manner when mixed with a glucose drink and sprinkled onto a standard white bread demonstrating that the processing did not interfere with the effectiveness of the fiber. From this study the reduction in GI was calculated to be 7 units per gram of NVP when added to a solid food, however it is not known whether this relationship would be maintained when the NVP was added to a range of commonly eaten foods. This study therefore evaluates the effect of the addition or incorporation of NVP into a range of foods on postprandial glycemia and whether the reductions in glycemic index could be predicted using.

Interventional
Phase 2
Phase 3
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Blood Glucose, Postprandial
  • Dietary Supplement: PolyGlycopleX (PGX)
    2.5 grams of PGX
  • Dietary Supplement: PolyGlycopleX (PGX)
    5.0 grams of PGX
  • Dietary Supplement: PolyGlycopleX (PGX)
    0 grams of PGX
  • Placebo Comparator: 1
    Control White bread containing 50g available carbohydrate
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 2
    White bread and milk control
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 3
    Granola control
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 4
    Cornflakes and milk control
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 5
    White rice control
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 6
    Fruit yogurt control
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 7
    Turkey dinner control
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Experimental: 8
    Granola
    Interventions:
    • Dietary Supplement: PolyGlycopleX (PGX)
    • Dietary Supplement: PolyGlycopleX (PGX)
  • Experimental: 9
    Cornflakes and milk
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Experimental: 10
    White Rice
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Experimental: 11
    Fruit yogurt
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Experimental: 12
    Turkey dinner
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 13
    White Bread
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Placebo Comparator: 14
    White bread
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
  • Experimental: 15
    Granola
    Intervention: Dietary Supplement: PolyGlycopleX (PGX)
Jenkins AL, Kacinik V, Lyon M, Wolever TM. Effect of adding the novel fiber, PGX®, to commonly consumed foods on glycemic response, glycemic index and GRIP: a simple and effective strategy for reducing post prandial blood glucose levels--a randomized, controlled trial. Nutr J. 2010 Nov 22;9:58.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
10
August 2006
June 2006   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • healthy individuals
  • 18-75 years old
  • BMI less than 35 kg/m2

Exclusion Criteria:

  • Medications influencing gastrointestinal function
  • Pregnancy
Both
18 Years to 75 Years
Yes
Contact information is only displayed when the study is recruiting subjects
Canada
 
NCT00935350
GIL-6033
No
Dr. Alexandra Jenkins, PhD, RD/ Vice President, Glycemic Index Laboratories, Inc.
Glycemic Index Laboratories, Inc
  • InovoBiologic Inc.
  • Canadian Center for Functional Medicine
Study Director: Alexandra L Jenkins, PhD, RD Glycemic Index Laboratories, Inc
Principal Investigator: Thomas MS Wolever, MD Glycemic Index Laboratories, Inc
Glycemic Index Laboratories, Inc
July 2009

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP