Probiotic Response in Periodontal Disease (MicroPerio)
MicroPerio: Microbiome and Dietary Predictors of Probiotic Response in Periodontal Disease
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Type d'étude
Type d'étude
Inscription (Estimé)
Inscription
Phase
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
Coordonnées de l'étude
- Nom: Maria C Dao, PhD
- Numéro de téléphone: (603) 862-4723
- E-mail: carlota.dao@unh.edu
Sauvegarde des contacts de l'étude
- Nom: Francesca Schembri, MS
- E-mail: Francesca.Schembri@unh.edu
Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- Age between 45 and 65 years: Restricting eligibility to this age range reduces potential confounding from age-related comorbidities and ensures adequate natural dentition for standardized gingival crevicular fluid (GCF) sampling.
- Diagnosis of Stage III periodontal disease (PD): Participants must have clinically confirmed Stage III (severe) PD according to the 2017 American Academy of Periodontology/European Federation of Periodontology (AAP/EFP) classification system to ensure consistent disease severity among enrolled participants.
Exclusion Criteria:
- Use of prebiotic, probiotic, or fiber supplements within the previous 6 months: Recent use of microbiome-modulating supplements could alter baseline oral or gut microbial composition and confound assessment of responsiveness to the probiotic intervention.
- Use of antibiotics within the previous 6 months: Antibiotic exposure can cause sustained disruptions to host microbiomes and immune responses, which may confound evaluation of probiotic-related changes in inflammatory and microbial outcomes.
- Systemic diseases affecting the periodontium (uncontrolled diabetes mellitus defined as HbA1c ≥8%, autoimmune diseases): These conditions may independently influence periodontal inflammation, immune responses, and microbiome composition, potentially confounding interpretation of study outcomes.
- History of communicable or chronic diseases that may render study participation unsafe: Certain medical conditions may increase the risk of adverse events associated with study procedures or probiotic exposure.
- Pregnancy or breastfeeding: Physiological changes during pregnancy and lactation may influence periodontal status, immune function, and microbiome composition.
- Having fewer than 20 natural teeth: Adequate natural dentition is required to support standardized periodontal assessments and reliable biospecimen collection.
- Use of removable dentures: Denture use alters the oral microbiome and local inflammatory environment and may compromise the validity of periodontal outcome measures.
- Surgical periodontal disease treatment within the previous 6 months: Recent surgical intervention may induce substantial changes in the periodontal environment, complicating baseline measurement and interpretation of treatment response.
- Ongoing participation in another clinical trial: Concurrent participation in another trial may introduce overlapping interventions or behavioral changes that could compromise internal validity.
- Lack of mobility or physical independence: Physical limitations may make participation burdensome or interfere with attendance at study visits and completion of study procedures.
- Inability to communicate orally or in written English: Because study procedures and consent materials will be conducted in English, adequate language proficiency is required to ensure participants understand study instructions and provide informed consent.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Quadruple
Nombre de bras
Armes et Interventions
Groupe de participants / BrasGroupe de participants / Bras |
Intervention / TraitementIntervention / Traitement |
|---|---|
|
Comparateur placebo: Placebo
Placebo lozenge (Ingredients: Isomalt, xylitol, peppermint flavor, menthol flavor and calcium sterate)
|
Daily placebo lozenge.
|
|
Expérimental: Probiotic
Probiotic lozenge (Ingredients: Limosilactobacillus reuteri, isomalt, xylitol, peppermint flavor, menthol flavor and calcium sterate)
|
L. reuteri is a probiotic that has been shown to inhibit the activity of "red complex" species and reduce PD severity in vitro and in animal models, and has been shown to ameliorate clinical outcomes of PD in human trials.
|
Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Matrix metalloproteinase-8 (MMP-8)in gingival crevicular fluid (GCF)
Délai: Change from baseline to week 12
|
MMP-8 is a validated biomarker of periodontal collagen breakdown
|
Change from baseline to week 12
|
Mesures de résultats secondaires
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
C-reactive protein (CRP) in saliva and plasma
Délai: Change from baseline to week 12
|
CRP is an acute phase protein used as marker of oral and systemic inflammation
|
Change from baseline to week 12
|
|
Interleukin 1β (IL-1β) in saliva and plasma
Délai: Change from baseline to week 12
|
Interleukin IL-1β is a pro-inflammatory cytokine measured in saliva and plasma as an indicator of systemic and oral inflammatory response.
|
Change from baseline to week 12
|
|
IL-6 in saliva and plasma
Délai: Change from baseline to week 12
|
Il-6 is a pro-inflammatory cytokine measured in saliva and plasma as an indicator of systemic and oral inflammatory response.
|
Change from baseline to week 12
|
|
IL-8 in saliva and plasma
Délai: Change from baseline to week 12
|
IL-8 is a chemokine involved in neutrophil recruitment and local inflammatory activity, measured as a marker of periodontal inflammatory response.
|
Change from baseline to week 12
|
|
Tumor necrosis factor-alpha (TNF-α) in saliva and plasma
Délai: Change from baseline to week 12
|
TNF-α is a pro-inflammatory cytokine associated with tissue inflammation and periodontal disease activity, measured to assess inflammatory modulation following probiotic supplementation.
|
Change from baseline to week 12
|
|
Oral microbiome composition
Délai: Change from baseline to week 12
|
Relative abundance and diversity of bacterial taxa in oral samples, assessed to determine whether probiotic supplementation alters the microbial community associated with periodontal disease.
|
Change from baseline to week 12
|
|
Gut microbiome composition
Délai: Change from baseline to week 12
|
Relative abundance and diversity of bacterial taxa in stool samples, assessed to evaluate whether probiotic supplementation affects gut microbial ecology.
|
Change from baseline to week 12
|
|
Oral and gut microbiome functional potential
Délai: Change from baseline to week 12
|
Predicted or measured microbial gene pathway profiles, assessed to identify functional microbial features associated with inflammatory response and probiotic responsiveness.
|
Change from baseline to week 12
|
Collaborateurs et enquêteurs
Parrainer
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Début de l'étude
Achèvement primaire (Estimé)
Achèvement primaire
Achèvement de l'étude (Estimé)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- UNH-17-FY2026_181-01
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
All results will be reported in aggregate form using summary statistics. No direct identifiers will be included in publications, presentations, or shared datasets. Analytic files will contain only coded data linked to unique study IDs.
Because the study will enroll participants within a defined age range and geographic region, demographic variables will be reported in grouped categories, and small cell sizes will be aggregated or not report to prevent potential re-identification.
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
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