Antibacterial Effect and Substantivity of a New Chlorhexidine and Cymenol Gel on Oral Biofilm and Saliva

July 25, 2024 updated by: Inmaculada Tomás, University of Santiago de Compostela

Randomized Clinical Trial on the Immediate Antibacterial Effect and Substantivity of a Single Application of a New Chlorhexidine Gel on Oral Biofilm and Saliva

The objective of this project was to compare the immediate antimicrobial effect and in situ substantivity of a new 0.20% chlorhexidine (CHX) gel and cymenol with the current CHX gel formulation on dental plaque biofilm and salivary flora up to 7 hours after a single application.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Spain
    • A Coruña
      • Santiago de Compostela, A Coruña, Spain, 15782
        • University of Santiago de Compostela

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Systemically healthy volunteers
  • Age between 20-45 years
  • Presence of minimum 24 permanent teeth
  • No evidence of gingivitis or periodontitis (CPITN= 0)
  • No presence of untreated caries at the start of the study

Exclusion Criteria:

  • Smoker or ex-smoker
  • Presence of dental protheses or orthodontic appliances
  • Antibiotic treatment and/or routine use of oral antiseptics in the previous three months
  • Presence of any systemic disease that could alter saliva production or composition

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 0.20% CHX gel
Participants underwent a single application of the 0.20% CHX gel. Samples were collected in basal conditions (i.e., before application) and at 5 minutes, 1 hour, 3 hours, 5 hours and 7 hours after application.
Drug: 0.20% CHX gel on saliva
In vivo application of a gel on the vestibular and palatal/lingual gingival mucosa of both arches at minute 0 for posterior saliva collection at different time-points.
Drug: 0.20% CHX gel on oral biofilm
Ex vivo application of a gel on the glass disks of the removable intraoral appliance at minute 0 for subsequent one-by-one disk removal from the device at different time-points.
Experimental: 0.20% CHX and Cymenol gel
Participants underwent a single application of the 0.20% CHX + Cymenol gel. Samples were collected in basal conditions (i.e., before application) and at 5 minutes, 1 hour, 3 hours, 5 hours and 7 hours after application.
Drug: 0.20% CHX and Cymenol gel on saliva
In vivo application of a gel on the vestibular and palatal/lingual gingival mucosa of both arches at minute 0 for posterior saliva collection at different time-points.
Drug: 0.20% CHX and Cymenol gel on oral biofilm
Ex vivo application of a gel on the glass disks of the removable intraoral appliance at minute 0 for subsequent one-by-one disk removal from the device at different time-points.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Intergel bacterial viability at baseline: 0.20% CHX gel vs 0.20% CHX and cymenol gel
Time Frame: Baseline
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) at baseline: 0.20% CHX gel vs 0.20% CHX and cymenol gel.
Baseline
Intergel bacterial viability after 5 min: 0.20% CHX gel vs 0.20% CHX and cymenol gel
Time Frame: 5 minutes
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) after 5 minutes: 0.20% CHX gel vs 0.20% CHX and cymenol gel.
5 minutes
Intergel bacterial viability after 1 hour: 0.20% CHX gel vs 0.20% CHX and cymenol gel
Time Frame: 1 hour
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) after 1 hour: 0.20% CHX gel vs 0.20% CHX and cymenol gel.
1 hour
Intergel bacterial viability after 3 hours: 0.20% CHX gel vs 0.20% CHX and cymenol gel
Time Frame: 3 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) after 3 hours: 0.20% CHX gel vs 0.20% CHX and cymenol gel.
3 hours
Intergel bacterial viability after 5 hours: 0.20% CHX gel vs 0.20% CHX and cymenol gel
Time Frame: 5 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) after 5 hours: 0.20% CHX gel vs 0.20% CHX and cymenol gel.
5 hours
Intergel bacterial viability after 7 hours: 0.20% CHX gel vs 0.20% CHX and cymenol gel
Time Frame: 7 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) after 7 hours: 0.20% CHX gel vs 0.20% CHX and cymenol gel.
7 hours
Intragel bacterial viability: baseline vs 5 minutes
Time Frame: Baseline, 5 minutes
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: baseline vs 5 minutes
Baseline, 5 minutes
Intragel bacterial viability: baseline vs 1 hour
Time Frame: Baseline, 1 hour
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: baseline vs 1 hour
Baseline, 1 hour
Intragel bacterial viability: baseline vs 3 hours
Time Frame: Baseline, 3 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: baseline vs 3 hours
Baseline, 3 hours
Intragel bacterial viability: baseline vs 5 hours
Time Frame: Baseline, 5 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: baseline vs 5 hours
Baseline, 5 hours
Intragel bacterial viability: baseline vs 7 hours
Time Frame: Baseline, 7 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: baseline vs 7 hours
Baseline, 7 hours
Intragel bacterial viability: 5 minutes vs 1 hour
Time Frame: 5 minutes, 1 hour
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: 5 minutes vs 1 hour
5 minutes, 1 hour
Intragel bacterial viability: 5 minutes vs 3 hours
Time Frame: 5 minutes, 3 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: 5 minutes vs 3 hours
5 minutes, 3 hours
Intragel bacterial viability: 5 minutes vs 5 hours
Time Frame: 5 minutes, 5 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: 5 minutes vs 5 hours
5 minutes, 5 hours
Intragel bacterial viability: 5 minutes vs 7 hours
Time Frame: 5 minutes, 7 hours
Percentage of bacterial viability (Ratio of viable bacteria to total bacteria -viable + non-viable- multiplied by 100) with either 0.20% CHX gel or 0.20% CHX and cymenol gel: 5 minutes vs 7 hours
5 minutes, 7 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Santiago de Compostela

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Lacer, S.A.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Inmaculada Tomás, Prof, University of Santiago de Compostela, Spain

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 30, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 31, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 25, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 25, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 31, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 29, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 25, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2021-CE161

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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