- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT07592416
Clinical, Microbiological and Immunological Effects of the Adjuvant Use of Systemic Antibiotics and Probiotics in the Non-surgical Treatment of Periodontitis
Clinical, Microbiological and Immunological Effects of the Adjuvant Use of Systemic Antibiotics and Probiotics in the Non-surgical Treatment of Periodontitis: a Controlled and Randomized Clinical Trial
Visão geral do estudo
Status
Intervenção / Tratamento
Descrição detalhada
Scaling and root planing (SRP) is the most widely used treatment modality in periodontal therapy. However, a subset of periodontal sites does not respond adequately to this approach, and certain individuals exhibit susceptibility patterns that limit their response to initial treatment. Therefore, to overcome the limitations of SRP alone, adjunctive therapies-such as antibiotics and probiotics-may be employed.
The aim of this randomized, controlled, double-blind clinical trial is to evaluate the effects of adjunctive therapies (antibiotics and probiotics) associated with non-surgical periodontal therapy in individuals diagnosed with periodontitis stages III or IV, grades B or C. A total of sixty individuals with a clinical diagnosis of periodontitis will be treated with SRP alone or SRP combined with antibiotics or probiotics. Participants will be randomly allocated into three groups: Control (SRP), Test 1 (SRP + amoxicillin and metronidazole), and Test 2 (SRP + probiotics).
The adjunctive agents evaluated in this study will be a combination of systemic antibiotics (amoxicillin and metronidazole) and the probiotic Bifidobacterium animalis subsp. lactis HN019. Antibiotics will be administered for 14 days, three times daily, whereas probiotics will be administered for 90 days, twice daily. Adjunctive therapies will commence immediately after the first week of periodontal instrumentation.
Clinical follow-up will be conducted at baseline (pre-intervention), and at 3, 6, 9, and 12 months post-treatment. At baseline, 6 months, and 12 months, gingival crevicular fluid, subgingival biofilm, peripheral blood, and fecal samples will be collected, along with the assessment of periodontal clinical parameters. Levels of the cytokines IL-6, TNF-α, IFN-γ, IL-10, IL-1β, and IL-8 will be quantified in gingival crevicular fluid and peripheral blood samples using enzyme-linked immunosorbent assays.
Subgingival biofilm and fecal samples will be subjected to 16S ribosomal RNA gene amplification by PCR and sequenced using Illumina technology (MiSeq or MiniSeq; Illumina, San Diego, CA, USA). Sequencing data will be analyzed using reference databases of the human oral and intestinal microbiomes. Statistical analyses will be performed using an alpha level of 0.05 (p < 0.05).
Tipo de estudo
Inscrição (Real)
Estágio
- Fase inicial 1
Contactos e Locais
Locais de estudo
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São Paulo
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Ribeirão Preto, São Paulo, Brasil, 14040-904
- Universidade de São Paulo
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Adults with a diagnosis of generalized periodontitis, defined as involvement of ≥30% of teeth, classified as: Stage III or Stage IV, and Grade B or Grade C, according to the 2018 classification.
- Presence of at least one tooth with ≥1 interproximal site exhibiting: Probing depth (PD) ≥6 mm, and Clinical attachment loss (CAL) ≥5 mm.
- Presence of at least 15 teeth, excluding third molars and teeth indicated for extraction.
- Presence of at least 6 non contiguous teeth, each with ≥1 interproximal site presenting PD and CAL ≥5 mm.
Exclusion Criteria:
- Current smokers or former smokers who quit less than 5 years prior to enrollment.
- Pregnant or breastfeeding women.
- History of periodontal treatment within the previous 6 months.
- Continuous use of oral antiseptics within the last 6 months.
- Use of systemic antibiotics, corticosteroids, non steroidal anti inflammatory drugs, immunosuppressants, estrogen, estrogen receptor modulators, or medications affecting bone metabolism (e.g., alendronate, calcitonin) within the last 6 months.
- Presence of systemic conditions that may alter the host response, including: Diabetes mellitus, HIV infection, Down syndrome.
- Medical conditions requiring antibiotic prophylaxis for dental procedures (e.g., mitral valve prolapse).
- Known allergy or hypersensitivity to amoxicillin, metronidazole, penicillins, or related compounds.
- Use of probiotics within the last 6 months.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Triplo
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Sem intervenção: Placebo
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Experimental: Probiotic
To compare the effects of probiotic as an adjuvant therapy
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Patients will receive probiotic lozenges as an adjuvant therapy to periodontal treatment.
|
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Experimental: Antibiotic
To compare the effects as an adjuvant therapy
|
The antibiotic group will receive amoxicilin and metronidazole, the probiotic group will receive probiotics
Outros nomes:
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Periodontal Probing Depth (PD)
Prazo: every 3 months, up to 1 year
|
A full-mouth periodontal examination will be performed using a North Carolina periodontal probe (Hu-Friedy, Chicago, IL, USA).
Probing depth (PD) will be measured in millimeters at six sites per tooth.
|
every 3 months, up to 1 year
|
|
Clinical Attachment Level (CAL)
Prazo: Every 3 months, up to 1 year
|
Clinical attachment level (CAL) will be measured in millimeters at six sites per tooth using a North Carolina periodontal probe.
|
Every 3 months, up to 1 year
|
|
Bleeding on Probing (BOP)
Prazo: Every 3 months, up to 1 year
|
Bleeding on probing will be assessed dichotomously (presence/absence) at six sites per tooth during full-mouth periodontal examination
|
Every 3 months, up to 1 year
|
|
Visible Supragingival Biofilm
Prazo: Every 3 months, up to 1 year
|
Presence or absence of visible supragingival biofilm will be assessed on four tooth surfaces during full-mouth periodontal examination.
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Every 3 months, up to 1 year
|
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Distance from Cementoenamel Junction to Gingival Margin
Prazo: Every 3 months, up to 1 year
|
The distance from the cementoenamel junction to the gingival margin will be measured in millimeters at six sites per tooth.
|
Every 3 months, up to 1 year
|
|
Suppuration
Prazo: Every 3 months, up to 1 year
|
Suppuration will be assessed dichotomously (presence/absence) at six sites per tooth during periodontal examination.
|
Every 3 months, up to 1 year
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Diretor de estudo: Michel Reis Messora, PhD, University of Sao Paulo
Publicações e links úteis
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Doenças bucais
- Doenças estomatognáticas
- Periodontite
- Doenças Periodontais
- Agentes Anti-Infecciosos
- Produtos químicos orgânicos
- Compostos heterocíclicos, 1 anel
- Compostos heterocíclicos
- Azoles
- Ações farmacológicas
- Ações e usos químicos
- Usos terapêuticos
- Imidazoles
- Nitroimidazoles
- Compostos Nitro
- Metronidazol
- Agentes Antibacterianos
Outros números de identificação do estudo
- 75898223.7.0000.5419
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
Descrição do plano IPD
Prazo de Compartilhamento de IPD
Critérios de acesso de compartilhamento IPD
Tipo de informação de suporte de compartilhamento de IPD
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