Clinical Study of the Effect of Two Experimental Lozenges on Oral Malodor After Single Use
Public ClinicalTrials.gov record NCT05950529. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Comparative, Randomized, Evaluator-Blind, Parallel-Group Clinical Study of the Effect of Two Experimental Lozenges on Oral Malodor After Single Use
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The goal of this clinical trial is to compare the control of oral malodor between an investigational lozenge with the enzyme polyphenol oxidase plus green coffee extract or an investigational lozenge with color and flavor along with the enzyme polyphenol oxidase plus green coffee extract in generally healthy subjects. Safety will be evaluated also. Subjects will be randomly assigned to one of four study groups (group code: A, B, C or D): * Experimental lozenge with the enzyme Polyphenol oxidase and green coffee extract * Experimental lozenge with the enzyme Polyphenol oxidase, green coffee extract and flavor * Placebo lozenge control (sorbitol only) * No product control Subjects will be asked to allow their assigned lozenge to dissolve in the mouth while placed on the dorsal surface of the tongue. Subjects can suck on the lozenge and press the lozenge against the palate; however, the lozenge should not be moved around in the mouth or placed on the buccal mucosa. Subjects should avoid biting or chewing the lozenge and talking while dissolving the lozenge. After the lozenge has completely dissolved, the subject will be instructed to swallow the remaining solution. Immediately (no later than 5 minutes) after subjects use their assigned lozenge product or no product, subjects will receive organoleptic assessments (OI) by the 4-5 trained judges and VSC readings (OralChroma readings). Organoleptic measurements (OI) will be repeated at 30 minutes, 1, 2, 3, and 4 hours following test product use or no test product use. OralChroma measurements will be performed again after 30 minutes, 1, 2, 3, and 4 hours after test product use or no test product. Subjects will complete a post-product performance questionnaire after the 1-hour OI and OralChroma assessments have been administered. Following the 4-hour OralChroma assessment, each subject will receive a final oral soft and hard tissue exam for safety.
Study identification
- NCT ID
- NCT05950529
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 156 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 5, 2020
- Primary completion
- Mar 10, 2020
- Completion
- Mar 10, 2020
- Last update posted
- Jul 17, 2023
2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Salus Research | Fort Wayne | Indiana | 46825 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05950529, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 17, 2023 · Synced Sep 10, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05950529 live on ClinicalTrials.gov.