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A Pilot Study to Assess Dry Mouth Relief After Using an Experimental Mouth Rinse

A Pilot Clinical Study to Assess Dry Mouth Relief After Using an Experimental Mouth Rinse Compared to a Negative Control

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04152642
Enrollment
22
Registered
2019-11-05
Start date
2019-11-04
Completion date
2019-12-05
Last updated
2021-02-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dry Mouth

Brief summary

The objective of this pilot study is to determine if an experimental mouth rinse and a marketed dry mouth rinse are more effective in relieving dry mouth compared to water.

Detailed description

This is a controlled, randomized, 3-treatment, 3-period crossover study in subjects with self-reported dry mouth symptoms as determined by subject responses (as determined by the response to relieving the discomfort of dry mouth question from the modified Product Performance and Attributes Questionnaire I/ Moisturization and Dryness (PPAQ I/ MD)) compared to water. Subjects enrollment is based on the responses to the Dry Mouth Inventory (DMI). A sufficient number of volunteers will be screened to ensure enrollment of up to 30 subjects at Acclimation. Subjects who meet the eligibility criteria will continue into the treatment phase of the study. Safety will be assessed by Oral examinations at Baseline/Day1 and Day 4. Subjects will complete questionnaires at Baseline (before product use Day 1 only), after immediate use, 30 minutes, 1 hour, 2 hours, and 4 hours after supervised product use on Day 1 and Day 4 of each period. The PPAQ II questionnaire will be completed in the morning of Day 4 of each period. Subjects will be randomly assigned to treatment sequences at the Baseline visit of Period 1. The treatment and washout periods will be repeated until all three treatment periods have been completed.

Interventions

DEVICEMarketed Dry Mouth Rinse

relieves dry mouth symptoms by physically coating oral mucosal surfaces.

negative control

DEVICEExperimental Dry Mouth Rinse

relieves dry mouth symptoms by physically coating oral mucosal surfaces.

Sponsors

Procter and Gamble
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Intervention model description

3-treatment crossover, with 4 days of use

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Provide written informed consent prior to participation and be given a signed copy of the informed consent form; * Be at least 18 years of age; * Be in good general health as determined by the Investigator/designee; * Agree not to participate in any other oral care studies for the duration of this study; * Agree to delay elective dentistry, including dental prophylaxis, until study completion, and to report any non-study dentistry received during the course of the study; * Agree to refrain from the use of any non-study oral hygiene products for the study duration including mouth rinse and toothpaste (flossing is permitted if part of their normal routine); * Self-report a dry mouth feeling according to the modified DMI questions. (Subject must answer at least 2 out of 4 questions with 'agree a little,' 'agree' or 'strongly agree'); * Agree to refrain from smoking, drinking, using tobacco products, using breath mints, medicated lozenges, or chewing gum during the 4-hour test period; * Agree to return for all scheduled visits and to follow all study procedures.

Exclusion criteria

* Any condition or disease, as determined by the Investigator/Designee, that could be expected to interfere with examination procedures, with compliance, or with the subject's safe completion of the study; * Severe periodontal disease, as characterized by purulent exudate, generalized mobility, and/or severe recession; * Active treatment for periodontitis; * Having a history of allergies or hypersensitivity to mouth rinse or ingredients in commercial dental products or cosmetics; * Self-reported pregnancy or the intent to become pregnant during the study, or breast feeding; * Full or partial dentures or any orthodontic appliances such as braces or aligners, or tongue or mouth piercing; * Having diabetes; * Inability to undergo any study procedure; * Having untreated oral mucosal disease which in the opinion of the investigator could interfere with the study (e.g., current oral ulceration); * Use of prescription systemic parasympathetic medications (e.g., Pilocarpine), for the treatment of the feeling of dry mouth; * Currently under the care of a dental/medical professional specifically for the treatment of dry mouth (at the discretion of the Investigator/Designee); * Self-reported mouth breathers (i.e., mouth breathing secondary to nasal obstruction); * Evidence of gross intra-oral neglect or need for extensive dental therapy; or * Currently undergoing radiotherapy and/or chemotherapy treatment.

Design outcomes

Primary

MeasureTime frameDescription
Product Performance and Attributes (PPAQ I) Question #1: 2-hr at Day 42-hour, Day 4Product Performance and Attributes (PPAQ I) Question #1: Since you have been used the product, please rate each of the following at this timepoint: (Select one response for each attribute)- excellent=5, very good=4, good=3, fair=2, poor=1: 1\) Relieves the discomfort of your dry mouth

Countries

United States

Participant flow

Pre-assignment details

Subjects that qualified were randomized to one of six treatment sequences: ABC, ACB, BCA, BAC, CAB, or CBA. Subjects had at least a 3 day washout before Period 1 and in-between each period.

Participants by arm

ArmCount
Overall Study
single-center, randomized 3-treatment, 3-period crossover study
22
Total22

Baseline characteristics

CharacteristicOverall Study
Age, Continuous41.3 years
STANDARD_DEVIATION 11.96
Dry Mouth Inventory
Lips sticking to teeth
Agree a Little, Agree, or Strongly Agree
18 Participants
Dry Mouth Inventory
Lips sticking to teeth
Disagree a Little, Disagree, or Strongly Disagree
4 Participants
Dry Mouth Inventory
No moisture in the mouth
Agree a Little, Agree, or Strongly Agree
19 Participants
Dry Mouth Inventory
No moisture in the mouth
Disagree a Little, Disagree, or Strongly Disagree
3 Participants
Dry Mouth Inventory
Throat feels dry
Agree a Little, Agree, or Strongly Agree
22 Participants
Dry Mouth Inventory
Throat feels dry
Disagree a Little, Disagree, or Strongly Disagree
0 Participants
Dry Mouth Inventory
Tongue sticking to roof of mouth
Agree a Little, Agree, or Strongly Agree
13 Participants
Dry Mouth Inventory
Tongue sticking to roof of mouth
Disagree a Little, Disagree, or Strongly Disagree
9 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
22 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
4 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
16 Participants
Sex: Female, Male
Female
16 Participants
Sex: Female, Male
Male
6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 190 / 19
other
Total, other adverse events
5 / 203 / 192 / 19
serious
Total, serious adverse events
0 / 200 / 190 / 19

Outcome results

Primary

Product Performance and Attributes (PPAQ I) Question #1: 2-hr at Day 4

Product Performance and Attributes (PPAQ I) Question #1: Since you have been used the product, please rate each of the following at this timepoint: (Select one response for each attribute)- excellent=5, very good=4, good=3, fair=2, poor=1: 1\) Relieves the discomfort of your dry mouth

Time frame: 2-hour, Day 4

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Water/Negative ControlProduct Performance and Attributes (PPAQ I) Question #1: 2-hr at Day 41.79 units on a scaleStandard Error 0.197
Marketed Mouth RinseProduct Performance and Attributes (PPAQ I) Question #1: 2-hr at Day 42.97 units on a scaleStandard Error 0.204
Experimental Mouth RinseProduct Performance and Attributes (PPAQ I) Question #1: 2-hr at Day 43.33 units on a scaleStandard Error 0.203

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026