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Sugar-replacement Sweeteners, and Blood Sugar Control (SIR)

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ClinicalTrials.gov Identifier: NCT01128829
Recruitment Status : Completed
First Posted : May 24, 2010
Results First Posted : December 22, 2014
Last Update Posted : December 22, 2014
Sponsor:
Information provided by (Responsible Party):
Marta Yanina Pepino de Gruev, Washington University School of Medicine

Study Description
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Brief Summary:
Several sugar-replacement sweeteners are currently on the market, including saccharine (ex. Sweet'N Low), aspartame (ex. Equal), and sucralose (ex. Splenda). The purpose of this study is to examine wether non caloric sweeteners affects how well the body works to control blood sugar. The study includes detailed blood sugar testing after drinking liquids that may contain sucralose. The investigators hypothesize that drinking liquids with sucralose will effect the amounts of specific appetite-affecting substances naturally produced by the body.

Condition or disease Intervention/treatment Phase
Obesity Other: Water Other: Sucralose Not Applicable

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 17 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: Regulation of Incretin Release by Non-nutritive Sweeteners in Humans
Study Start Date : May 2010
Actual Primary Completion Date : February 2012
Actual Study Completion Date : October 2012
Arms and Interventions
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Arm Intervention/treatment
Experimental: water-sucralose
Subjects in this group drank "water" 10 min before drinking a glucose load on their first oral glucose tolerance test (OGTT) and drank "sucralose" 10 min before drinking a glucose load on their second OGTT. The two OGTT were separated on average by 1 week (i.e. washout was approximately 1 week).
 Other: Water
60 ml of water were drank 10 min before doing a OGTT
Other: Sucralose
60 ml of 2 millimolar sucralose were drank 10 min before doing a OGTT
Experimental: sucralose-water
Subjects in this group drank "sucralose" 10 min before drinking a glucose load on their first OGTT and drank "water" 10 min before drinking a glucose load on their second OGTT. The two OGTT were separated on average by 1 week (i.e. washout was approximately 1 week).
 Other: Water
60 ml of water were drank 10 min before doing a OGTT
Other: Sucralose
60 ml of 2 millimolar sucralose were drank 10 min before doing a OGTT


Outcome Measures
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Primary Outcome Measures :
  1. The Effect of Sucralose on Insulin Concentration (Area Under the Curve; AUC) [ Time Frame: Baseline ]
    we will measure plasma insulin concentrations during a 5-hour modified Oral Glucose Tolerance Test (mOGTT) administered 10 minutes after subjects consume sucralose in water or an equal volume of water without sucralose (control condition).Plasma insulin concentrations were measured at 20, 15, 10, 6, and 2 min before and at 10, 20, 30, 40, 60, 90, 120, 150,180, 240, and 300 min after ingesting 75g of glucose. All these data collected were used to create the AUC curve.


Eligibility Criteria
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Ages Eligible for Study:   21 Years to 40 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • body mass index (BMI) over 30.
  • Homeostasis model assessment of insulin resistance (HOMA-IR) < or = 2.6

Exclusion Criteria:

  • smoking or smoked within last six months
  • pregnant or breastfeeding
  • have malabsorptive syndromes
  • intestinal inflammatory disease
  • diabetes
  • liver or kidney disease
  • fructose intolerance
  • consuming more than one can of diet beverage or one spoonful of non-nutritive sweeteners (e.g. sucralose, aspartame, or saccharine) a week.
  • taking any medication that might affect metabolism or taste.
Contacts and Locations
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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01128829


Locations
United States, Missouri
Washington University School of Medicine
St. Louis, Missouri, United States, 63110
Sponsors and Collaborators
Washington University School of Medicine
Investigators
Principal Investigator: Marta Y Pepino de Gruev, Ph.D. Washington University School of Medicine
More Information
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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Responsible Party: Marta Yanina Pepino de Gruev, Research Assistant Professor of Medicine, Washington University School of Medicine
ClinicalTrials.gov Identifier: NCT01128829     History of Changes
Other Study ID Numbers: 09-0583/ 201102383
First Posted: May 24, 2010    Key Record Dates
Results First Posted: December 22, 2014
Last Update Posted: December 22, 2014
Last Verified: December 2014

Keywords provided by Marta Yanina Pepino de Gruev, Washington University School of Medicine:
obesity
diabetes
artificial sweeteners