NCT01778699

Brief Summary

In a previous study the efficacy of Lb CD2 on interim covariates related to caries development was tested. So, it was decided to plan a new study on schoolchildren from the same area. The aim of the present research protocol was to evaluate the anticariogenic effect of probiotics daily used, on the caries development in children. The null hypothesis was that the probiotic Lb CD2 would not modify the caries risk of the children. Moreover, the study will be carried out to investigate the plaque acidogenicity in situ following the regular consumption of a probiotic product compared to a control group. Objective: To determine the effect of a regularly consumed probiotic on the development of new caries lesions. Study design: Double blind, placebo-controlled, longitudinal study, monocentric, national, in situ

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
440

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Feb 2013

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 21, 2013

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 29, 2013

Completed
3 days until next milestone

Study Start

First participant enrolled

February 1, 2013

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2015

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2015

Completed
Last Updated

February 20, 2014

Status Verified

February 1, 2014

Enrollment Period

2.1 years

First QC Date

January 21, 2013

Last Update Submit

February 19, 2014

Conditions

Keywords

Lactobacillus brevis CD2caries incidenceplaque-pH

Outcome Measures

Primary Outcomes (1)

  • Caries increment by ICDAS method

    ICDAS (International Caries Detection and Assessment System) index, Oral mucosa

    180 days

Secondary Outcomes (2)

  • salivary mutans streptococci

    90 days

  • plaque pH

    90 days

Study Arms (2)

Lozenges with Lactobacillus brevis CD2

EXPERIMENTAL

During the treatment phases subjects will use 2 lozenges a day.

Dietary Supplement: lozenges

Lozenges

PLACEBO COMPARATOR

During the treatment phases subjects will use 2 lozenges a day.

Dietary Supplement: lozenges

Interventions

lozengesDIETARY_SUPPLEMENT

The test products for the study is manufactured and provided by CD Investments srl, Italy. The placebo lozenges will look like the active lozenges with the same taste and weight of 1 gram containing only the ingredients listed above in the same proportion as the active but with no L. brevis CD2. It will not be possible to differentiate the two products. The study center and the monitor must be informed of any deficiency in the study products (products will be kept at 4° degrees during the study).

LozengesLozenges with Lactobacillus brevis CD2

Eligibility Criteria

Age6 Years - 7 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Written declaration of informed consent signed by parents/guardian
  • At least 20 teeth
  • Good general health, as assessed by investigator
  • Average oral hygiene (cleaning the teeth at least twice a day)
  • Agreement of test subject not to use any oral hygiene products other than the test products and toothpaste provided for the duration of the study; the use of non-fluoridated oral hygiene agents is allowed.
  • Flow rate of stimulated saliva ≥ 0.7 ml/min
  • High caries risk following Cariogram \[Campus et al., 2009\]

You may not qualify if:

  • Ongoing oral or dental treatment except for emergency treatment.
  • Known allergic reaction to an oral hygiene product and/or medication and/or dental material previously used in the mouth or pharynx.
  • Existing allergy to one of the components of the test products or the standard toothpaste.
  • Pathological changes of the oral mucosa, e.g. acute ulcerating gingivitis, acute herpetic gingivostomatitis, recurrent aphthous ulceration or systemic illnesses with oral manifestations.
  • Antibiotic therapy within the past six months, used for a period more than 10 days.
  • Any non-permitted therapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Surgery, Microsurgery and Medicine Sciences -School of Dentistry University of sassari

Sassari, SS, 07100, Italy

RECRUITING

MeSH Terms

Conditions

Dental CariesGingivitis

Interventions

Tobacco Use Cessation Devices

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic DiseasesInfectionsGingival DiseasesPeriodontal DiseasesMouth Diseases

Intervention Hierarchy (Ancestors)

Therapeutics

Central Study Contacts

Giovanna Congiu, DDS PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

January 21, 2013

First Posted

January 29, 2013

Study Start

February 1, 2013

Primary Completion

March 1, 2015

Study Completion

April 1, 2015

Last Updated

February 20, 2014

Record last verified: 2014-02

Locations