NCT05734274

Brief Summary

The purpose of this study is to evaluate the clinical efficacy of a probiotic lozenge containing Limosilactobacillus reuteri as an adjunct to the periodontal non-surgical treatment of patients with stage II, grade A, B and C, generalized periodontitis.

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
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2023

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 25, 2023

Completed
7 days until next milestone

Study Start

First participant enrolled

February 1, 2023

Completed
16 days until next milestone

First Posted

Study publicly available on registry

February 17, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2024

Completed
Last Updated

November 28, 2023

Status Verified

November 1, 2023

Enrollment Period

11 months

First QC Date

January 25, 2023

Last Update Submit

November 27, 2023

Conditions

Keywords

probioticsLimosilactobacillus reuteri

Outcome Measures

Primary Outcomes (1)

  • Change From Baseline in Bleeding on Probing (BoP) - Lindhe, 1972

    Bleeding on probing (in percentage) will be assessed 30 seconds after probing, through a dichotomous scoring system used at six sites per tooth using one (1) and zero (0) for presence or absence, respectively.

    0, 21, 90, 180 days

Secondary Outcomes (4)

  • Change From Baseline in Plaque Index (PI) - Silness & Löe, 1964

    0, 21, 90, 180 days

  • Change From Baseline in Gingival Index (GI) - Löe e Silness, 1963

    0, 21, 90, 180 days

  • Change From Baseline in Probing Depth (PD)

    0, 21, 90, 180 days

  • Change From Baseline in Clinical Attachment Level (CAL) - Ramfjord, 1959

    0, 21, 90, 180 days

Study Arms (2)

Probiotics Lozenge

EXPERIMENTAL

Subjects are instructed to take a lozenge twice a day, after brushing, in the morning and the evening.

Other: Probiotics

Negative control Lozenge

SHAM COMPARATOR

Subjects are instructed to take a lozenge twice a day, after brushing, in the morning and the evening.

Other: Negative control

Interventions

Probiotics lozenge containing at least 200 million active Limosilactobacillus reuteri.

Probiotics Lozenge

Sugar-free negative control lozenges.

Negative control Lozenge

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients over 18 years old, who intend to voluntarily participate in the study and:
  • Have a definitive diagnosis of stage II, grade A, B or C, generalized periodontitis (2018, World Workshop);
  • Have at least 3 natural teeth maintained per quadrant.

You may not qualify if:

  • Patients unable to understand the instructions necessary to participate in the study or unable to give informed consent;
  • Patients who have received any type of periodontal treatment 2 months prior to the start of study participation;
  • Pregnant or breastfeeding patients;
  • Patients with associated systemic pathology, such as diabetes, HIV, asthma, hyperthyroidism, immune system pathologies, lichen erosive or other pathologies treated with corticosteroids or immunosuppressants;
  • Patients undergoing therapy with drugs that may interfere with the response of the gingival tissues: anti-inflammatory drugs, anticonvulsants (phenytoin and sodium valproate), immunosuppressants (cyclosporin-A and tacrolimus) and antihypertensives (nifedipine and verapamil hydrochloride);
  • Patients undergoing anticoagulant therapy;
  • Patients allergic to both lidocaine, articaine and mepivacaine;
  • Patients who require antibiotic prophylaxis for bacterial endocarditis;
  • Patients who have had antibiotic therapy within 2 months of study participation;
  • Patients using chlorhexidine, or other mouthwashes or elixirs;
  • Patients undergoing orthodontic treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Dental Medicine - University of Porto

Porto, 4200-393, Portugal

RECRUITING

Related Publications (6)

  • Wei SH, Lang NP. Periodontal epidemiological indices for children and adolescents: II. Evaluation of oral hygiene; III. Clinical applications. Pediatr Dent. 1982 Mar;4(1):64-73. No abstract available.

    PMID: 6960328BACKGROUND
  • Montero E, Iniesta M, Rodrigo M, Marin MJ, Figuero E, Herrera D, Sanz M. Clinical and microbiological effects of the adjunctive use of probiotics in the treatment of gingivitis: A randomized controlled clinical trial. J Clin Periodontol. 2017 Jul;44(7):708-716. doi: 10.1111/jcpe.12752. Epub 2017 Jun 23.

    PMID: 28556062BACKGROUND
  • Iniesta M, Herrera D, Montero E, Zurbriggen M, Matos AR, Marin MJ, Sanchez-Beltran MC, Llama-Palacio A, Sanz M. Probiotic effects of orally administered Lactobacillus reuteri-containing tablets on the subgingival and salivary microbiota in patients with gingivitis. A randomized clinical trial. J Clin Periodontol. 2012 Aug;39(8):736-44. doi: 10.1111/j.1600-051X.2012.01914.x. Epub 2012 Jun 13.

    PMID: 22694350BACKGROUND
  • Vivekananda MR, Vandana KL, Bhat KG. Effect of the probiotic Lactobacilli reuteri (Prodentis) in the management of periodontal disease: a preliminary randomized clinical trial. J Oral Microbiol. 2010 Nov 2;2. doi: 10.3402/jom.v2i0.5344.

    PMID: 21523225BACKGROUND
  • Song D, Liu XR. Role of probiotics containing Lactobacillus reuteri in adjunct to scaling and root planing for management of patients with chronic periodontitis: a meta-analysis. Eur Rev Med Pharmacol Sci. 2020 Apr;24(8):4495-4505. doi: 10.26355/eurrev_202004_21032.

    PMID: 32373987BACKGROUND
  • Tekce M, Ince G, Gursoy H, Dirikan Ipci S, Cakar G, Kadir T, Yilmaz S. Clinical and microbiological effects of probiotic lozenges in the treatment of chronic periodontitis: a 1-year follow-up study. J Clin Periodontol. 2015 Apr;42(4):363-72. doi: 10.1111/jcpe.12387. Epub 2015 Apr 10.

    PMID: 25728888BACKGROUND

MeSH Terms

Conditions

Chronic Periodontitis

Interventions

Probiotics

Condition Hierarchy (Ancestors)

PeriodontitisPeriodontal DiseasesMouth DiseasesStomatognathic DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Dietary SupplementsFoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • André Marques, MDent

    Estudante da Especialização de Periodontologia e Implantologia

    PRINCIPAL INVESTIGATOR

Central Study Contacts

André Marques, MDent

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator - student of the Specialization in Periodontology and Oral Implants

Study Record Dates

First Submitted

January 25, 2023

First Posted

February 17, 2023

Study Start

February 1, 2023

Primary Completion

January 1, 2024

Study Completion

July 1, 2024

Last Updated

November 28, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations