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Platelet-Rich Fibrin for Preventing Osteoradionecrosis After Dental Extractions

28 de setembro de 2026 atualizado por: Reda Elgazzar, University of Manitoba

Multicentre Randomized Controlled Trial Evaluating Platelet-Rich Fibrin (PRF) for the Prevention of Osteoradionecrosis in Patients Requiring Dental Extractions After Radiation Therapy

The goal of this clinical trial is to learn whether platelet-rich fibrin (PRF) can help prevent osteoradionecrosis (ORN) after dental extractions in adults who previously received radiation therapy to the head and neck. ORN is a condition in which jawbone damaged by radiation does not heal properly and may become exposed.

The main question this study aims to answer is:

Does placing PRF into dental extraction sites lower the chance of developing ORN within 6 months after extraction?

PRF is made from a small sample of a participant's own blood. The blood is processed in a centrifuge to form PRF, which can then be placed into the tooth extraction site.

Researchers will compare participants who receive PRF in addition to standard extraction care with participants who receive standard extraction care alone.

Participants will:

Have one or more teeth removed from an area of the jaw that previously received radiation therapy.

Be randomly assigned to receive either PRF plus standard care or standard care alone.

Return for follow-up visits at approximately 2 weeks, 6 weeks, 3 months, and 6 months after extraction.

Have their healing, pain, any potential postoperative complications, and development of ORN assessed during follow-up.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Descrição detalhada

This is a multicentre, randomized controlled trial evaluating platelet-rich fibrin (PRF) for the prevention of osteoradionecrosis (ORN) following dental extraction in adults who have previously received radiation therapy involving the jaws.

Eligible participants requiring extraction of one or more teeth within a previously irradiated field will be randomized in a 1:1 ratio to receive either PRF plus standard extraction care or standard extraction care alone.

For participants allocated to the intervention group, autologous PRF will be prepared chairside from venous blood using horizontal centrifugation and placed into the extraction socket(s) during the same procedure. The PRF will not be stored or transported.

The study will evaluate whether adjunctive PRF reduces the occurrence of ORN following dental extraction and will also evaluate clinical soft-tissue healing, radiographic bone healing, postoperative pain, analgesic use, postoperative complications, and adverse events.

The study will be conducted at participating centres in Winnipeg, Manitoba, and Calgary, Alberta, Canada.

Tipo de estudo

Intervencional

Inscrição (Estimado)

112

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

  • Nome: Julia M Burgess, DMD (current OMFS Resident)
  • Número de telefone: 6042206648
  • E-mail: burges16@myumanitoba.ca

Estude backup de contato

Locais de estudo

    • Alberta
    • British Columbia
      • Vancouver, British Columbia, Canadá, V6T 1X4
        • Health Sciences Centre Oral Surgery Clinic
        • Contato:
        • Contato:

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria:

Age 18 years or older. History of head and neck cancer treated with radiation therapy. Requires at least one dental extraction within an area of the jaw that was previously treated with radiation.

Willing and able to attend all study follow-up visits. No minimum or maximum time since completion of radiation therapy is required.

Exclusion Criteria:

Abscess or draining sinus tract associated with a planned study extraction site.

Blood disorder affecting platelet production or function, such as thrombocytopenia, hemophilia, von Willebrand disease, or a qualitative platelet disorder.

Current immunosuppressive therapy, including calcineurin inhibitors, antimetabolites, biologic therapy, or active cytotoxic chemotherapy.

Current tobacco use in any form, including nicotine vaping, within the previous 30 days.

Known recurrence of head and neck cancer. Previous re-irradiation or re-irradiation currently planned. Chronic systemic corticosteroid use equivalent to at least 5 mg of prednisone daily for at least 30 consecutive days within the previous 3 months.

Current or previous bisphosphonate therapy by any route. Denosumab within the previous 12 months or use of another antiresorptive or antiangiogenic medication.

Current pregnancy. Therapeutic low-molecular-weight heparin or unfractionated heparin that cannot be scheduled at trough level.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Prevenção
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Dobro

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Platelet-Rich Fibrin (PRF) + Standard Care

Participants randomized to this arm will undergo dental extraction with standard extraction care and adjunctive placement of autologous platelet-rich fibrin (PRF) into the extraction socket(s). PRF will be prepared chairside from the participant's venous blood using horizontal centrifugation and placed into the extraction socket(s) during the same procedure.

Autologous platelet-rich fibrin (PRF) will be prepared chairside from venous blood collected from the participant. Blood will be processed using horizontal centrifugation to produce PRF. The prepared PRF will be placed into the eligible dental extraction socket(s) during the same procedure. PRF will not be stored or transported.

Participants will undergo extraction of one or more eligible teeth within a previously irradiated area of the jaw using standard dental extraction care. No platelet-rich fibrin (PRF) will be placed in the extraction socket(s) as part of this intervention.

Comparador Ativo: Standard Care Alone

Participants randomized to this arm will undergo dental extraction with standard extraction care without placement of platelet-rich fibrin (PRF) into the extraction socket(s).

Participants will undergo extraction of one or more eligible teeth within a previously irradiated area of the jaw using standard dental extraction care. No platelet-rich fibrin (PRF) will be placed in the extraction socket(s) as part of this intervention.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Incidence of Osteoradionecrosis Within 6 Months
Prazo: From dental extraction through 6 months after extraction

Osteoradionecrosis (ORN) will be assessed at the participant level using the ClinRad definition adopted by the ISOO-MASCC-ASCO guideline. ORN is defined as a radiographic lytic or mixed sclerotic lesion of bone, visibly exposed bone, and/or bone probeable through a periodontal pocket or fistula within an anatomical site previously exposed to therapeutic head and neck radiation. A participant will meet the primary endpoint if at least one study extraction socket meets the definition at any scheduled or unscheduled visit through 6 months.

From dental extraction through 6 months after extraction

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Complete Mucosal Closure of the Extraction Site
Prazo: 2 weeks, 6 weeks, 3 months, and 6 months after dental extraction

Complete mucosal closure will be assessed clinically at each study extraction socket and recorded as a binary outcome (yes/no). Complete mucosal closure is defined as intact epithelium across the entire socket orifice, with no dehiscence and no exposed bone. Socket-level outcomes will account for clustering of multiple extraction sockets within individual participants.

2 weeks, 6 weeks, 3 months, and 6 months after dental extraction
Radiographic Bone Healing at the Extraction Site
Prazo: Baseline to 6 months after dental extraction

Radiographic bone healing at each study extraction site will be assessed by qualitative comparison of the 6-month cone-beam computed tomography (CBCT) scan with the pre-extraction baseline CBCT. Assessment will include the presence, absence, and extent of lytic or mixed sclerotic changes and cortical continuity at the socket crest.

Baseline to 6 months after dental extraction
Postoperative Pain Intensity
Prazo: 2 weeks, 6 weeks, 3 months, and 6 months after dental extraction

Pain intensity at each study extraction socket will be assessed using the 11-point Numeric Rating Scale (NRS-11), ranging from 0 to 10, where 0 represents no pain and 10 represents the worst pain imaginable. Participants will rate pain at each extraction site over the preceding 24 hours. Higher scores indicate greater pain intensity.

2 weeks, 6 weeks, 3 months, and 6 months after dental extraction

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Investigadores

  • Investigador principal: Julia M Burgess, DMD (current OMFS Resident), University of Manitoba
  • Diretor de estudo: Reda Elgazzar, Oral and Maxillofacial Surgeon, University of Manitoba
  • Diretor de estudo: Edmund Chan, DMD, University of Calgary

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

1 de janeiro de 2027

Conclusão Primária (Estimado)

31 de dezembro de 2028

Conclusão do estudo (Estimado)

31 de dezembro de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

28 de setembro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

28 de setembro de 2026

Primeira postagem (Real)

5 de outubro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

5 de outubro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

28 de setembro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • PRF-ORN-RCT-2026

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .