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A Study to Investigate the Antimicrobial Activity of 2 Test Toothpastes

GlaxoSmithKline (GSK) logo

GlaxoSmithKline (GSK)

Status

Completed

Conditions

Dental Plaque

Treatments

Other: Test zinc non- IPMP toothpaste
Other: Test zinc-IPMP toothpaste
Other: SLS negative control
Other: Positive control
Other: non-SLS negative control

Study type

Interventional

Funder types

Industry

Identifiers

Details and patient eligibility

About

The aim of this exploratory study is to assess the ability of two test toothpastes containing 0.6% w/w zinc chloride stabilised with sodium citrate in a sodium lauryl sulfate (SLS)-containing base to reduce glycolytic metabolism and viability of de novo plaque bacteria using the plaque glycolysis regrowth model (PGRM).

Enrollment

45 patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • 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.
  • Good general and mental health with, in the opinion of the investigator or medically qualified designee no clinically significant and relevant abnormalities in medical history or upon oral examination.
  • Plaque sample acidogenicity in the pH range 5.0 to 5.7 at Visit.

Exclusion criteria

  • 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.
  • Currently taking antibiotics or have taken antibiotics within 2 weeks of plaque assessment (Visit 2). A participant with any medical history that may prevent them from participating in the study until study conclusion (such as diabetes).
  • Any sign of grossly carious lesions (active), moderate or severe periodontal conditions, or severe tooth wear.
  • Known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of their stated ingredients.
  • Current smokers, or smokers who have quit within 6 months of screening, or participants currently using smokeless forms of tobacco, e.g. Gutkha, Pan containing tobacco, Pan Masala.
  • Current active caries or periodontitis that may compromise, in the opinion of the investigator, study outcomes or the health of the subject.
  • Restorations in a poor state of repair that may, in the opinion of the investigator, compromise study outcomes or the health of the participant.
  • Partial dentures or orthodontic appliances that may, in the opinion of the investigator, compromise study outcomes or the health of the participant.
  • Recent history (within the last year) of alcohol or other substance abuse.

Trial design

Primary purpose

Basic Science

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Single Blind

45 participants in 5 patient groups

Test zinc-IPMP toothpaste
Experimental group
Description:
Rinse with preprepared slurry of toothpaste in 10 milliliter (mL) water for 60 seconds(s) followed by rinse with 10mL water
Treatment:
Other: Test zinc-IPMP toothpaste
Test zinc non- IPMP toothpaste
Experimental group
Description:
Rinse with preprepared slurry of toothpaste in 10 mL water for 60s followed by rinse with 10mL water
Treatment:
Other: Test zinc non- IPMP toothpaste
Positive control Toothpaste
Active Comparator group
Description:
Rinse with preprepared slurry of toothpaste in 10 mL water for 60s followed by rinse with 10mL water
Treatment:
Other: Positive control
SLS Negative Control
Active Comparator group
Description:
Rinse with preprepared slurry of toothpaste in 10 mL water for 60s followed by rinse with 10mL water
Treatment:
Other: SLS negative control
non-SLS negative control
Active Comparator group
Description:
Rinse with preprepared slurry of toothpaste in 10 mL water for 60s followed by rinse with 10mL water
Treatment:
Other: non-SLS negative control

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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