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Completed

NCT Number: NCT05258721

Efficacy of ClōSYS® Sensitive Fluoride Toothpaste and ClōSYS® Sensitive Rinse Regimen on MGI, PI and BOP

90-day, self-controlled, longitudinal, non-blinded clinical trial which will measure changes in clinical parameters in participants with gingivitis and Stage I or II periodontitis who apply ClōSYS® Sensitive Fluoride Toothpaste and ClōSYS® Sensitive Rinse.

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Key information

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Arizona School of Dentistry & Oral Health

Mesa, Arizona, 85206, United States

About this study

The study will be conducted with 60 medically healthy participants between ages 18 to 75 years with gingival or periodontitis (Stage I or II) who are receiving routine preventive care and/or periodontal maintenance.

Subjects will brush with ClōSYS® Sensitive Fluoride Toothpaste twice daily and rinse with ClōSYS® Sensitive Rinse twice daily after brushing.

The primary response variables will be the Subjects' scores on the Plaque Index (PI), Gingival Index (GI) and the number of sites with bleeding upon probing (BOP). Probing depths and clinical attachment level will be assessed at baseline and 3 months. Adverse events will also be assessed and documented at each visit. In addition, Subjects will keep a usage diary documenting their daily use of the toothpaste and oral rinse and any comments or observations regarding usage or adverse events.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subjects are between the ages of 18 to 80 years
  • Subjects have a minimum of 20 permanent teeth, excluding third molars
  • Subjects have been diagnosed with gingivitis or periodontitis (Stages I and II are based on the level of CAL and Bone Loss (BL). The diagnosis is Stage I if: (a) BL is less than 15% and (b) CAL is between 1-2mm. The diagnosis is Stage II if: (a) BL is between 15% and 33% and (b) CAL is between 3-4mm)
  • Subjects exhibit bleeding upon probing in >20% of sites
  • Subject is seen every 3 months for routine dental prophylaxis/periodontal maintenance
  • Subjects do not have a significant medical history or metabolic diseases (diabetes with A1C ≥ 7.0, pregnancy)
  • Subject is currently a non-smoker or has discontinued smoking at least 6 months prior to enrollment
  • Subject agrees to refrain from use of the following products: Peridex®, PerioGuard®, Listerine®, Cepacol®, Crest Pro-Health® rinse, Colgate Total® rinse, Colgate Total® toothpaste, Crest Pro Health® toothpaste, or any generic equivalent while participating in this study. Alcohol is not the active ingredient in any oral rinse product and does not produce a significant antibacterial effect
  • Subject is able to read and provide written informed consent
  • Subject is able to follow verbal and/or written instructions, perform oral hygiene procedures and return to the test facility for specified study examinations
  • Subject agrees not to receive a dental "cleaning" (prophylaxis) while in the study
  • Subject must permanently reside in Arizona

Exclusion criteria

  • Subject has significant medical history or poorly controlled/uncontrolled diabetes (as defined above)
  • Subject is pregnant
  • Subject has a medical condition that requires antibiotic premedication prior to dental treatment
  • Subject has taken antibiotics within 1 month of study enrollment
  • Subject who takes multiple medications and/or herbal and dietary supplements known to alter bleeding and exhibits/reports spontaneous gingival bleeding
  • Subject takes medications that may interfere with study results (eg. antibiotics, steroids, immunosuppressants, high dose aspirin (325+ mg/day), chemotherapy and/or radiation therapy for cancer).
  • Subject is a current smoker
  • Subject has a history of non-surgical or surgical periodontal therapy within 6 months of study participation
  • Subject has Stage III or IV periodontitis, Grade B or C
  • Subject is currently taking or in the past 28 days has taken another investigational drug or participated in other investigational studies that may impact study outcomes
  • Subject has not had a dental cleaning within six months prior to the start of the study

Treatment and study plan

ClōSYS® Sensitive Fluoride Toothpaste

Drug

ClōSYS® Sensitive Fluoride Toothpaste is an over-the-counter drug product containing 0.12% stabilized chlorine dioxide (sodium chlorite in an aqueous solution) and 0.13% w/v fluoride ion.

ClōSYS® Sensitive Rinse

Other

ClōSYS® Sensitive Rinse is a cosmetic product containing 0.1% stabilized chlorine dioxide.

Primary outcomes

  1. Changes in Modified Gingival Index (MGI)

    Time frame: Baseline and 12 weeks

    MGI uses a rating score between 0 and 4, with 0 indicating a tooth with healthy gums and 4 the most severe inflammation. MGI scores were determined by visual exam of the gingiva on 4 surfaces for each tooth present except for third molars, for a total of 28 teeth. The total number of teeth exhibiting inflammation affecting all portions of the gingival unit (Score ≥ 2) were noted at each visit. The total number of teeth affected was evaluated for each visit in the final analysis.

    At baseline: Score range is (0-64) At 12 weeks: Score range is (0-32)

  2. Changes in Plaque Index (PI)

    Time frame: Baseline and 12 weeks

    The PI was recorded on all teeth except for third molars. PI was recorded on 4 surfaces of each tooth. PI uses a rating score between 0 and 3, with 0 indicating no plaque in gingival area and 3 heavy accumulation of plaque. Total score is reported.

    At baseline: Score range is 9 -157. At 12 weeks: Score range is 1 -147.

  3. Changes in Bleeding On Probing (BOP)

    Time frame: Baseline and 12 weeks

    Bleeding On Probing (BOP) will be recorded as a dichotomous variable (present/absent) during the periodontal examination. The percentage of sites that bleed will be calculated by dividing the number of sites with bleeding by the total number of sites.

Secondary outcomes

  1. Adverse Events

    Time frame: 90 Days

    Adverse events will be collected throughout the study

Sponsors and collaborators

Lead sponsor

Rowpar Pharmaceuticals, Inc.

Industry

Registry information

Official study title

Efficacy of ClōSYS® Sensitive Fluoride Toothpaste and ClōSYS® Sensitive Rinse Regimen on Plaque, Gingival Inflammation and Bleeding Upon Probing

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Feb 28, 2022
Registry last updated
Aug 15, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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