ClinicalTrials.gg
CompletedNCT05524948Updated Aug 26, 2024Results posted

A Clinical Study to Examine the Effects of an Experimental Toothpaste Compared to a Regular Fluoride Toothpaste on Breath Odor in a Population With Gingivitis

An interventional study of Experimental Dentifrice and Reference Dentifrice in Halitosis, sponsored by HALEON. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-08-26.

Sponsored by HALEON · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
104
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to investigate the efficacy of an experimental dentifrice, containing 0.454 percent (%) stannous fluoride and 0.3% zinc chloride, to reduce oral malodor, compared to a marketed regular fluoride dentifrice after 3 weeks twice daily brushing in a population of clinically diagnosed gingivitis.

Read the detailed description

This will be a single center, single blind (to the examiners undertaking the oral malodor assessments), randomized (stratified by the participant's sex), controlled, two arm parallel study in volunteers with clinically diagnosed gingivitis and oral malodor. The study will evaluate the clinical efficacy of an experimental dentifrice containing 0.454% stannous fluoride and 0.3% zinc chloride to reduce oral malodor after 3 weeks of twice-daily use compared to a regular reference dentifrice. Sufficient participants will be screened to randomize approximately 106 participants to study treatment (approximately 53 per treatment group) to ensure approximately 100 evaluable participants complete the study.

02

Conditions studied

  • Halitosis

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03

In context

Halitosis

93 studies on the registry are indexed under Halitosis; 17 are open to participants now.

This study's enrollment of 104 is above the median of 45 across 79 interventional studies indexed under Halitosis.

Browse Halitosis studies →

Lead sponsor

HALEON is the lead sponsor of 64 studies on the registry; 9 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 2 (33%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Provision of a signed and dated document indicating that the participant has been informed of all pertinent aspects of the study before any assessment is performed.
  • Participant who is willing and able to comply with scheduled visits, product usage requirements, study procedures and lifestyle restrictions.
  • Participant in good general and mental health with, in the opinion of the investigator or medically qualified designee, no or relevant abnormalities in medical history (for example, a medical condition or medication confirmed to contribute to xerostomia),or upon oral examination, that would impact the participant's safety, wellbeing or the outcomes of the study, if they were to participate in the study, or affect the participant's ability to understand and follow study procedures and requirements.
  • Participant with generally good oral health that fulfil all of the following:

    1. Having at least 20 natural (vital) teeth.
    2. Good oral health without lesions in the oral cavity (including the tongue) that could interfere with the study evaluations.
    3. Having clinically diagnosed, plaque-induced gingivitis defined as having 10-30% bleeding sites from the bleeding on probing assessment.
    4. At Screening (Visit 1) and prior to brushing with assigned dentifrice at Baseline (Visit 2) participants must provide 2 samples of mouth air, which must have a mean hydrogen sulfide concentration greater than 150ppb. There must be less than or equal to (\<=)500ppb difference between the values measured at screening and baseline (pre-brushing).
    5. At Baseline (Visit 2), prior to brushing with assigned dentifrice participants must provide a breath sample with a mean organoleptic score greater than or equal to (>=)2.

Exclusion criteria

Exclusion Criteria:

  • Participant who is an employee of the site, either directly involved in the conduct of the study or a member of their immediate family; or an employee of the investigational site otherwise supervised by the investigator; or an employee of the sponsor directly involved in the conduct of the study or a member of their immediate family.
  • Participant who has participated in other studies (including non-medicinal studies) involving investigational product(s) within 30 days of study entry and/or during study participation or who has previously been enrolled in this study.
  • Participant with, in the opinion of the investigator or medically qualified designee, an acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or study product administration or may interfere with the interpretation of study results and, in the judgment of the investigator or medically qualified designee, would make the participant inappropriate for entry into this study.
  • A Participant who is pregnant (self-reported) or intending to become pregnant during the study.
  • Participant who is breastfeeding.
  • Participant who habitually smokes, uses tobacco products or who vapes.
  • Participant with known or suspected intolerance or to the study products or any of their stated ingredients (or closely related compounds).
  • Participant who is unwilling or, in the opinion of the investigator or medically qualified designee, unable to comply with the requirements and/or Lifestyle Considerations of the study.
  • Participant with a recent history (within the last year) of alcohol or other substance abuse.
  • General medical exclusions:

    1. Participant with a medical history that may prevent the Participant from participating in the study until study conclusion.
    2. Participant with, or having recent history of, bronchitis, tonsillitis or sinusitis (within 6 weeks) or any other systemic condition that can cause oral malodor for example, xerostomia, chronic acid reflux, Type 1 diabetes, Crohn's disease, celiac disease or liver/kidney conditions.
    3. Participant with a significant infectious disease, such as hepatitis, COVID-19, flu, respiratory infection, tuberculosis, or any other condition which can be transmitted in saliva or salivary aerosols which, in the opinion of the examiner, could endanger the organoleptic assessors.
    4. Participant with any condition that impacts gum health (for example, Type 2 Diabetes).
  • General medication exclusions:

    1. Participant using any antibiotic medication within 14 days prior to screening or at any time during the study.
    2. Participant using chlorhexidine, cetylpyridinium chloride (CPC) or stannous fluoride containing mouthwash or dentifrice within 14 days prior to Visit 2 or between Visit 2 and 3.
    3. Participant taking medications which may impact oral mouth odor (for example, Diazepam, Alprazolam, Lorazepam and so on).
  • General oral exclusions:

    1. Participant with orthodontic or prosthetic appliances (fixed or removable), including dental implants.
    2. Participant having had professional dental cleaning (oral prophylaxis) within 3 months prior to the screening visit or at any time during the study.
    3. Participant with signs of active periodontal disease (with probing depth greater than [>]3 millimeter [mm]) or who is receiving or has received treatment for periodontal disease (including surgery) within 12 months of Screening.
    4. Participant who has had oral surgery or tooth extraction within 6 weeks of the screening visit.
    5. Participant who has dental conditions or disease under active dental treatment or requiring immediate treatment.
    6. Participant with tongue or lip piercing.
    7. Participant with Oral Soft Tissue (OST) examination findings at Screening which, in the opinion of the investigator, could interfere with the conduct of the study (for example, stomatitis, open sores, lesions, cavitied caries lesions, redness or swelling).
    8. Participant who does not practice daily oral care.
  • Participant with oral malodor which, in the opinion of the investigator, is not expected to respond to treatment with an over-the-counter dentifrice.
  • Participant who, in the opinion of the investigator, should not participate in the study.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
104 participants (actual)

Study arms

  • Experimental
    Experimental Dentifrice

    Participants will be instructed to brush twice daily (for 1 minute, morning and evening) with the experimental dentifrice (0.454% Stannous Fluoride with 0.3% Zinc Chloride) for 3 weeks.

    Other: Experimental Dentifrice

  • Active comparator
    Reference Dentifrice

    Participants will be instructed to brush twice daily (for 1 minute, morning and evening) with the reference dentifrice (Regular Fluoride Dentifrice) for 3 weeks.

    Other: Reference Dentifrice

Interventions

  • OtherExperimental Dentifrice

    Dentifrice containing 0.454% stannous fluoride with 0.3% zinc chloride.

  • OtherReference Dentifrice

    Standard fluoride dentifrice containing 0.243% sodium fluoride.

06

What researchers measure

Primary outcomes

  1. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Breath Organoleptic Scores

    An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Week 3 (Pre-Brushing) minus score at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing). Analysis was performed using Analysis of Covariance (ANCOVA) method.

    Time frame: Baseline (Day 0, Pre-Brushing) and Week 3 (Pre-Brushing)

Secondary outcomes

  1. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Total Volatile Sulfur Compounds (VSCs) Concentration in Breath

    The VSCs concentration in breath sample was evaluated using OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (in parts per billion \[ppb\]) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Week 3 (Pre-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Week 3 (Pre-Brushing)

  2. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

    The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Week 3 (Pre-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Week 3 (Pre-Brushing)

  3. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath

    The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)

  4. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post--Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

    The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)

  5. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores

    An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Week 3 (1 Hour Post-Brushing) minus score at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)

  6. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Total VSC Concentration in Breath

    The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Day 0 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Day 0 (1 Hour Post-Brushing)

  7. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

    The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Day 0 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Day 0 (1 Hour Post-Brushing)

  8. Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Breath Organoleptic Scores

    An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Day 0 (1 Hour Post-Brushing) minus score at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

    Time frame: Baseline (Day 0, Pre-Brushing) and Day 0 (1 Hour Post-Brushing)

  9. Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath

    The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Week 3, Pre-Brushing). Baseline was defined as Week 3 (Pre-Brushing).

    Time frame: Baseline (Week 3, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)

  10. Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

    The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Week 3, Pre-Brushing). Baseline was defined as Week 3 (Pre-Brushing).

    Time frame: Baseline (Week 3, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)

  11. Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores

    An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Week 3 (1 Hour Post-Brushing) minus score at (Week 3, Pre-Brushing). Baseline was defined as Week 3 (Pre-Brushing).

    Time frame: Baseline (Week 3, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)

07

Results

Posted Aug 26, 2024

Participant flow

All participants were recruited at a single center in United States of America (USA).

Participant flow — Overall Study
MilestoneExperimental DentifriceReference Dentifrice
Started5252
Completed5051
Not completed21
Withdrew: Withdrawal by subject10
Withdrew: Participant did not receive call or showed up for final visit11

Outcome measures

PrimaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Breath Organoleptic Scores

An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Week 3 (Pre-Brushing) minus score at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing). Analysis was performed using Analysis of Covariance (ANCOVA) method.

Time frame:
Baseline (Day 0, Pre-Brushing) and Week 3 (Pre-Brushing)
Reported as:
Mean · Score on a scale
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Breath Organoleptic Scores
Score on a scaleExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Breath Organoleptic Scores-1.23 ± 0.1460.07 ± 0.145
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -1.30 · 95% CI -1.71 to -0.90Adjusted mean difference was calculated as experimental dentifrice minus reference dentifrice.
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Total Volatile Sulfur Compounds (VSCs) Concentration in Breath

The VSCs concentration in breath sample was evaluated using OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (in parts per billion \[ppb\]) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Week 3 (Pre-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Week 3 (Pre-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Total Volatile Sulfur Compounds (VSCs) Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Total Volatile Sulfur Compounds (VSCs) Concentration in Breath-518.00 ± 68.46951.64 ± 67.779
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -569.64 · 95% CI -763.11 to -376.17Analysis was performed using ANCOVA model with study product and gender as a factor and baseline concentration as a covariate.
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Week 3 (Pre-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Week 3 (Pre-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (Pre-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Hydrogen Sulfide-348.60 ± 45.55370.26 ± 45.093
Methanethiol-118.88 ± 23.040-9.97 ± 22.810
Dimethyl Sulfide-42.59 ± 16.234-16.42 ± 16.074
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -418.86 · 95% CI -547.56 to -290.15For Hydrogen Sulfide
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = 0.0012 · Adjusted mean difference: -108.90 · 95% CI -173.66 to -44.15For Methanethiol
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = 0.2561 · Adjusted mean difference: -26.17 · 95% CI -71.64 to 19.29For Dimethyl Sulfide
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath

The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath-733.17 ± 66.436-11.59 ± 65.766
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -721.58 · 95% CI -909.31 to -533.86Analysis was performed using ANCOVA model with study product and gender as a factor and baseline concentration as a covariate.
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post--Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post--Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Hydrogen Sulfide-507.84 ± 47.83060.05 ± 47.348
Methanethiol-176.69 ± 17.351-71.30 ± 17.178
Dimethyl Sulfide-43.45 ± 18.568-5.42 ± 18.384
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -567.89 · 95% CI -703.03 to -432.75For Hydrogen Sulfide
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -105.39 · 95% CI -154.15 to -56.62For Methanethiol
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = 0.1498 · Adjusted mean difference: -38.04 · 95% CI -90.04 to 13.97For Dimethyl Sulfide
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores

An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Week 3 (1 Hour Post-Brushing) minus score at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)
Reported as:
Mean · Score on a scale
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores
Score on a scaleExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores-2.55 ± 0.145-0.38 ± 0.143
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -2.17 · 95% CI -2.58 to -1.77Adjusted mean difference was calculated as experimental dentifrice minus reference dentifrice.
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Total VSC Concentration in Breath

The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Day 0 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Day 0 (1 Hour Post-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Total VSC Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Total VSC Concentration in Breath-434.60 ± 67.213-37.64 ± 67.213
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -396.96 · 95% CI -586.51 to -207.41Analysis was performed using ANCOVA model with study product and gender as a factor and baseline concentration as a covariate.
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Day 0 (1 Hour Post-Brushing) minus value at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Day 0 (1 Hour Post-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Hydrogen Sulfide-324.07 ± 50.98417.30 ± 50.984
Methanethiol-137.61 ± 14.737-63.46 ± 14.737
Dimethyl Sulfide31.79 ± 18.3133.81 ± 18.313
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -341.37 · 95% CI -485.10 to -197.64For Hydrogen Sulfide
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = 0.0006 · Adjusted mean difference: -74.15 · 95% CI -115.62 to -32.68For Methanethiol
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = 0.2834 · Adjusted mean difference: 27.98 · 95% CI -23.49 to 79.45For Dimethyl Sulfide
SecondaryAdjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Breath Organoleptic Scores

An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Day 0 (1 Hour Post-Brushing) minus score at Baseline (Day 0, Pre-Brushing). Baseline was defined as Day 0 (Pre-Brushing).

Time frame:
Baseline (Day 0, Pre-Brushing) and Day 0 (1 Hour Post-Brushing)
Reported as:
Mean · Score on a scale
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Breath Organoleptic Scores
Score on a scaleExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Day 0, Pre-Brushing) to Day 0 (1 Hour Post-Brushing) in Breath Organoleptic Scores-2.11 ± 0.098-0.56 ± 0.098
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -1.55 · 95% CI -1.83 to -1.28Adjusted mean difference was calculated as the experimental dentifrice minus the reference dentifrice.
SecondaryAdjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath

The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately, and the adjusted mean of total VSCs concentration was reported. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Week 3, Pre-Brushing). Baseline was defined as Week 3 (Pre-Brushing).

Time frame:
Baseline (Week 3, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Total VSC Concentration in Breath-301.42 ± 47.05321.33 ± 46.567
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -322.75 · 95% CI -457.27 to -188.23Analysis was performed using ANCOVA model with study product and gender as a factor and baseline concentration as a covariate.
SecondaryAdjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath

The VSCs concentration in breath sample was evaluated using the OralChroma Halitosis Measuring instrument. A clean and sterile OralChroma syringe was used to obtain a sample of the mouth air of the participant. The OralChroma is a portable gas chromatograph with a highly sensitive semiconductor gas detector which can determine the concentration of the three main VSCs in breath (hydrogen sulfide, methanethiol and dimethyl sulfide). The concentration values (ppb) of hydrogen sulfide, methanethiol and dimethyl sulfide were recorded separately. The change from Baseline was calculated as value at Week 3 (1 Hour Post-Brushing) minus value at Baseline (Week 3, Pre-Brushing). Baseline was defined as Week 3 (Pre-Brushing).

Time frame:
Baseline (Week 3, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)
Reported as:
Mean · Parts per billion
Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Hydrogen Sulfide, Methanethiol and Dimethyl Sulfide Concentration in Breath
Parts per billionExperimental DentifriceReference Dentifrice
Hydrogen Sulfide-210.39 ± 29.60839.94 ± 29.300
Methanethiol-82.58 ± 16.472-37.05 ± 16.307
Dimethyl Sulfide-11.38 ± 18.47021.31 ± 18.287
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -250.33 · 95% CI -335.35 to -165.30For Hydrogen Sulfide
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = 0.0550 · Adjusted mean difference: -45.53 · 95% CI -92.05 to 0.99For Methanethiol
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = 0.2124 · Adjusted mean difference: -32.68 · 95% CI -84.36 to 18.99For Dimethyl Sulfide
SecondaryAdjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores

An organoleptic assessment was used to evaluate the oral odor and defined as a method that measures the strength of target odor and expresses the value in terms of a score with reference to a pre-defined organoleptic scale. The assessors evaluated the oral odor and scored from 0 (lowest score) to 5 (highest score), where 0= No appreciable odor, 1= Barely noticeable odor, 2= Slight but clearly noticeable odor, 3= Moderate odor, 4= Strong odor, 5= Extremely foul odor. Lower score indicates improvement. The change from Baseline was calculated as score at Week 3 (1 Hour Post-Brushing) minus score at (Week 3, Pre-Brushing). Baseline was defined as Week 3 (Pre-Brushing).

Time frame:
Baseline (Week 3, Pre-Brushing) and Week 3 (1 Hour Post-Brushing)
Reported as:
Mean · Score on a scale
Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores
Score on a scaleExperimental DentifriceReference Dentifrice
Adjusted Mean Change From Baseline (Week 3, Pre-Brushing) to Week 3 (1 Hour Post-Brushing) in Breath Organoleptic Scores-1.49 ± 0.108-0.29 ± 0.107
Statistical analysis
  • Experimental Dentifrice vs Reference Dentifrice · ANCOVA · p = <0.0001 · Adjusted mean difference: -1.20 · 95% CI -1.52 to -0.87Adjusted mean difference was calculated as experimental dentifrice minus reference dentifrice.

Adverse events

Collected over All-cause mortality, Serious Adverse Events (SAEs), Non-SAEs and Medical Device incidents were collected immediately after signing of informed consent until 5 days following last administration of the study product (Visit 3, Week 3) (Collected up to 35 days). Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Experimental Dentifrice0/52 (0%)0/52 (0%)0/52 (0%)
Reference Dentifrice0/52 (0%)0/52 (0%)0/52 (0%)

Baseline characteristics

Modified Intent-To-Treat (mITT) population included all randomized participants who completed at least one use of study product and had at least one post treatment efficacy assessment.

Age, Continuous
Age, Continuous(years)Experimental DentifriceReference DentifriceTotal
Mean48.5 ± 10.9146.4 ± 11.1747.4 ± 11.04
Sex: Female, Male
Sex: Female, Male(Participants)Experimental DentifriceReference DentifriceTotal
Female383876
Male141428
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Experimental DentifriceReference DentifriceTotal
Hispanic or Latino415
Not Hispanic or Latino485199
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Experimental DentifriceReference DentifriceTotal
American Indian or Alaska Native202
Asian101
Native Hawaiian or Other Pacific Islander000
Black or African American11819
White374380
More than one race112
Unknown or Not Reported000
08

Study locations

1 site
  • Salus Research Inc.
    Fort Wayne, Indiana 46825, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — Anonymized individual participant data and study documents can be requested for further research from ww.clinical-trial-register@haleon.com.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

Time frame: IPD will be made available within 6 months of publishing the results of the primary endpoints, key secondary endpoints and safety data of the study.

Access criteria: Access is provided after a research proposal is submitted and has received approval from the Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months, but an extension can be granted, when justified, for up to another 12 months.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 26, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05524948
Lead sponsor
HALEON
Responsible party
Sponsor
First posted
Sep 1, 2022
Start date
Sep 26, 2022
Primary completion
Oct 27, 2022
Completion
Oct 27, 2022
Results posted
Aug 26, 2024
Last update
Aug 26, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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