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Effects of Sucralose in Gut Intestinal Microbiota and Postprandial GLP-1

NCT06094894 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2025-04-04

No results posted yet for this study

Summary

Recently, it has been proposed that the consumption of non-nutritive sweeteners, including sucralose, it's not harmless and is related with metabolic effects. Some studies have reported that sucralose produces alterations in glucose homeostasis. In vitro studies indicate that sucralose can interact with sweet taste receptors (T1R2 and T1R3) in the intestine, thus increasing the expression of glucose transporters including the sodium-glucose cotransporter type 1 (SGLT1) and the glucose transporter 2 (GLUT2), increasing glucose absorption. This interaction with intestinal sweet taste receptors also generates an increase in the secretion of the incretins glucagon-like peptide type 1 (GLP-1) and the glucose-dependent insulinotropic polypeptide (GIP), which might enhance the postprandial insulin release. However, these results are preliminary and it's desirable to confirm if sucralose consumption is associated with glucose metabolism modifications using an appropriate methodological design and with gold standard methods. The aim of this triple-blind, placebo-controlled, parallel, randomized clinical trial is to confirm the changes in insulin sensitivity associated with sucralose consumption in humans, to identify whether these changes are in the liver or skeletal muscle and to investigate the pathophysiological mechanisms generating these changes. Specifically, we will investigate if sucralose generates a dysbiosis in the gut microbiota that could be related to insulin resistance by increasing concentrations of lipopolysaccharide, a toxin found in Gram-negative bacteria that triggers a low-grade inflammation known as metabolic endotoxemia. In addition, the changes in postprandial concentrations of GLP-1, glucose, insulin, and C-peptide due to the combination of sucralose with a mixed meal will be investigated. The results of this study will determine if sucralose consumption, frequently used as a non-nutritive sweetener, is associated to significant changes in glucose homeostasis in humans.

Conditions

Interventions

OTHER

sucralose

Food additive used to replace sugar providing a sweet taste without calories.

OTHER

placebo

Cornstarch without significant physiological effects

Sponsors & Collaborators

  • Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2023-06-01
Primary Completion
2024-02-29
Completion
2024-03-01

Countries

  • Mexico

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06094894 on ClinicalTrials.gov