Sensory Study: Taste and Tongue Biology

NCT ID: NCT05985928

Last Updated: 2025-08-05

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

121 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-03-20

Study Completion Date

2025-05-20

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Researchers will investigate the correlation between a) self-reported dietary intake of foods and beverages, b) intensity of sucrose stimuli, and c) liking rating of sweet stimuli, with the relative expression of the taste receptor genes from human fungiform papillae (TAS1R2 and TAS1R3).

\* This research will provide new information on how sweet taste perception is regulated.

* The hypothesis: Greater dietary consumption of sugar and sweet foods is associated with reduced expression of the sweet taste receptors.
* The results of this study could help to identify pathways to help modify sweet taste perception by uncovering this mechanism.

Participants will sample solutions prepared with sweet ingredients, provide salivary DNA, and collect fungiform papillae. This will allow researchers and investigators to compare the relationship between the sweetness of stimuli, genetic differences in sweet taste receptors, and expression levels of sweet taste receptor genes.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Healthy Adults

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

OTHER

Study Time Perspective

OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

1. between 18 and 45 years old,
2. have no tongue or cheek piercings,
3. not a user of tobacco products or electronic cigarettes (within the last year),
4. no known defects in taste or smell,
5. not pregnant or breastfeeding,
6. no history of chronic pain in the mouth,
7. not taking any prescription pain medication,
8. not taking any blood thinners,
9. no history of cancer or cancer treatment,
10. not diabetic or restricting intake of sugars for medical reasons, under the direction of a physician or healthcare provider
11. willing to undergo the Fungiform Papillae biopsy procedure
12. willing to provide salivary DNA
13. Not currently experiencing any COVID-19 symptoms
14. Not recently diagnosed (in the last 30 days) with COVID-19
15. No history of high blood pressure

Exclusion Criteria

\-
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

National Institute on Deafness and Other Communication Disorders (NIDCD)

NIH

Sponsor Role collaborator

University of Massachusetts, Amherst

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

University of Massachusetts

Amherst, Massachusetts, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

R21DC018906

Identifier Type: NIH

Identifier Source: secondary_id

View Link

2587

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Glucose and Motivation States
NCT07255183 RECRUITING NA
Monell USDA Taste Test Study
NCT04079855 ACTIVE_NOT_RECRUITING NA