Short Term Clinical Study Investigating the Efficacy of an Occluding Dentifrice in Providing Relief From Dentinal Hypersensitivity

NCT02731833 | Completed Phase 4 Results

• 1 other identifier: 205710
• Study Type: interventional
• Target: 229
• Locations: 1 country
• Sites: 1

Brief Summary

This single centre, comparative design study will be used to investigate the efficacy of an experimental stannous fluoride containing dentifrice in relieving dentinal hypersensitivity (DH) after short term use compared with a standard fluoride dentifrice

Conditions

Dentin Sensitivity

Outcome Measures

Primary Outcomes (1)

• Change From Baseline in Schiff Sensitivity Score on Day 3

  The examiner assessed the participant's response to an evaporative air stimulus for each tooth using the Schiff Sensitivity Scale which was scored as follows - 0: Participant does not respond to air stimulation; 1: Participant responded to air stimulus but does not request discontinuation of stimulus; 2: Participant responded to air stimulus and requests discontinuation or moves from stimulus; 3: Participant responded to stimulus, considered stimulus to be painful, and requested discontinuation of the stimulus. A reduction in Schiff Sensitivity score was indicative of an improvement in sensitivity.

  Baseline to Day 3

Secondary Outcomes (3)

• Change From Baseline in Tactile Threshold on Day 3

  Baseline to Day 3

• Change From Baseline in Schiff Sensitivity Score Post First Treatment by Direct Application

  Baseline to 60 seconds post first treatment

• Change From Baseline in Tactile Threshold Post First Treatment by Direct Application

  Baseline to 60 seconds post first treatment

Study Arms (2)

Test dentifrice

EXPERIMENTAL

Participants will be instructed to dose a dry toothbrush with a full strip (1 inch) of toothpaste. Participants will then brush each of the two selected sensitive test teeth first followed by the whole mouth thoroughly for at least 1 minute

Other: stannous fluoride

Control dentifrice

ACTIVE COMPARATOR

Participants will be instructed to dose a dry toothbrush with a full strip (1 inch) of toothpaste. Participants will then brush whole mouth thoroughly for at least 1 minute

Other: sodium monofluorophosphate

Interventions

stannous fluoride OTHER

0.454% weight by weight (w/w) stannous fluoride containing 1100ppm fluoride

Test dentifrice

sodium monofluorophosphate OTHER

0.76% w/w sodium monofluorophosphate containing 1000ppm fluoride

Control dentifrice

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Demonstrates understanding of the study procedures, restrictions and willingness to participate as evidenced by voluntary written informed consent and has received a signed and dated copy of the informed consent form
• Aged 18-65 years inclusive
• Understands and is willing, able and likely to comply with all study procedures and restrictions
• Good general and mental health with, in the opinion of the investigator or medically qualified designee: a) No clinically significant and relevant abnormalities of medical history or oral examination. b) Absence of any condition that would impact on the participant's safety or wellbeing or affect the individual's ability to understand and follow study procedures and requirements
• Self-reported history of dentinal hypersensitivity (DH) lasting more than six months but not more than 10 years
• Minimum of 20 natural teeth
• Minimum of 2 accessible non-adjacent teeth (incisors, canines, pre-molars), preferably in different quadrants, that meet all of the following criteria: Signs of facial/cervical gingival recession and/or signs of erosion or abrasion (EAR), Tooth with MGI score =0 adjacent to the test area (exposed dentine) only \[Lobene, 1986\] and a clinical mobility of ≤1, Tooth with signs of sensitivity measured by qualifying evaporative air assessment (Y/N response)
• Minimum of two, non-adjacent accessible teeth (incisors, canines, pre-molars), that meet all of the following criteria: Tooth with signs of sensitivity, measured by qualifying tactile stimulus (Yeaple ≤ 20g) and evaporative air assessment (Schiff sensitivity score ≥ 2)

You may not qualify if:

• Women who are known to be pregnant or who are intending to become pregnant over the duration of the study
• Women who are breast-feeding
• Known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of their stated ingredients
• Participation in another clinical study (including cosmetic studies) or receipt of an investigational drug within 30 days of the screening visit.
• Previous participation in this study
• Recent history (within the last year) of alcohol or other substance abuse
• An employee of the sponsor or the study site or members of their immediate family
• Presence of chronic debilitating disease which, in the opinion of the investigator, could affect study outcomes or Any condition which, in the opinion of the investigator, causes xerostomia
• Dental prophylaxis within 4 weeks of Screening or Tongue or lip piercing or presence of dental implants
• Gross periodontal disease, treatment of periodontal disease (including surgery) within 12 months of Screening, scaling or root planning within 3 months of Screening and teeth bleaching within 8 weeks of Screening
• Tooth with evidence of current or recent caries, or reported treatment of decay within 12 months of Screening
• Tooth with exposed dentine but with deep, defective or facial restorations, teeth used as abutments for fixed or removable partial dentures, teeth with full crowns or veneers, orthodontic bands or cracked enamel. Sensitive teeth with contributing aetiologies other than erosion, abrasion or recession of exposed dentine
• Sensitive tooth not expected to respond to treatment with an over-the-counter dentifrice in the opinion of the investigator
• Use of an oral care product indicated for the relief of dentine hypersensitivity within 8 weeks of screening (participants will be required to bring their current oral care products to the site in order to verify the absence of known anti-sensitivity ingredients)
• Daily doses of medication/treatments which, in the opinion of the investigator, could interfere with the perception of pain. Examples of such medications include analgesics, anticonvulsants, antihistamines that cause marked or moderate sedation, sedatives, tranquilisers, anti-depressants, mood-altering and anti-inflammatory drugs

Sponsors & Collaborators

• GlaxoSmithKline: lead

Study Sites (1)

GSK Investigational Site

Mississauga, Ontario, L4W 0C2, Canada

Location

Related Publications (1)

• Creeth J, Gallob J, Sufi F, Qaqish J, Gomez-Pereira P, Budhawant C, Goyal C. Randomised clinical studies investigating immediate and short-term efficacy of an occluding toothpaste in providing dentine hypersensitivity relief. BMC Oral Health. 2019 Jun 4;19(1):98. doi: 10.1186/s12903-019-0781-x.

  PMID: 31164116 DERIVED

MeSH Terms

Conditions

Dentin Sensitivity

Interventions

Tin Fluorides; fluorophosphate

Condition Hierarchy (Ancestors)

Tooth Diseases; Stomatognathic Diseases

Intervention Hierarchy (Ancestors)

Fluorides; Hydrofluoric Acid; Fluorine Compounds; Inorganic Chemicals; Tin Compounds; Cariostatic Agents; Biomedical and Dental Materials; Manufactured Materials; Technology, Industry, and Agriculture

Results Point of Contact

• Title: GSK Response Center
• Organization: GlaxoSmithKline

866-435-7343

Study Officials

• GSK Clinical Trials

  GlaxoSmithKline

  STUDY DIRECTOR

Publication Agreements

• PI is Sponsor Employee: No
• Restriction Type: OTHER
• Restrictive Agreement: Yes

Study Design

• Study Type: interventional
• Phase: phase 4
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 4, 2016
• First Posted: April 8, 2016
• Study Start: April 1, 2016
• Primary Completion: May 1, 2016
• Study Completion: May 20, 2016
• Last Updated: May 17, 2017
• Results First Posted: March 15, 2017

Record last verified: 2017-04

Locations

CA (1)