Human Oral Detection of Glucose Olygomers

Phase 4

Completed

• Conditions: Healthy Volunteers
• Interventions: Drug: Acarbose

• Registration Number: NCT02589353
• Lead Sponsor: Oregon State University

Brief Summary

Although salivary contents play a major role in the early stage of food digestion process, their role in taste perception of glucose polymers is essentially unknown. It is hypothesized that the differences in salivary contents, more specifically salivary amylase concentration and activity, influence taste perception of glucose polymers and ultimately eating behavior, which is related to risks in various diseases. The current project will investigate the variation in salivary contents across individuals and its role in taste perception of glucose polymers.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2015-10-21
• Study First Submitted QC: 2015-10-26
• Study First Posted: 2015-10-28
• Study Start: 2017-04-21
• Primary Completion: 2022-12-16
• Status Verified: 2023-02
• Study Completion: 2023-02-16
• Last Update Submitted: 2023-02-16
• Last Update Posted: 2023-02-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 157

Inclusion Criteria

• self-reported healthy adults between the ages of 18-60 who are fluent in English.

Exclusion Criteria

• adults 61 years old and above
• smokers
• pregnant women
• taking any prescription pain/ insulin medication
• has a history of taste or smell loss or other oral disorders (e.g., burning mouth syndrome)
• has current oral lesions, canker sores, or piercings
• has a history of food allergy

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Acarbose	Acarbose	Acarbose solution will be swabbed on the tip of the tongue to inhibit salivary alpha amylase activity; each swab will contain \~484 microgram acarbose; total maximum exposure of each subject to acarbose will be \~14-30 mg each session (1-20 sessions)

Primary Outcome Measures

Name	Time	Method
Detection of glucose polymers in the presence of acarbose	up to 5 years	There is only one outcome measure, that is the detection of glucose polymers. Subjects will be asked to discriminate a target sample (glucose polymers). Three samples will be applied using cotton swabs on the subjects' tongue (one at a time): 2 blanks (water + acarbose) and 1 target stimuli (glucose polymer solution + acarbose). Subjects will be asked to identify the target sample. The number of subjects who correctly identify the target stimuli will be counted and will be statistically analyzed to determine whether glucose polymer can be detected without the confounding effect of salivary alpha amylase hydrolysis.

Trial Locations

Locations (1)

Department of Food Science and Technology; 🇺🇸 Corvallis, Oregon, United States