- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT07797361
Evaluation of Versatile Intelligent Staining Technology (VIST) and Spectral Flexible Imaging (SFI) for Detection and Optical Characterization of Colorectal Lesions: A Prospective Randomized Controlled Study (INSIGHT)
Evaluation of Versatile Intelligent Staining Technology (VIST) and Spectral Flexible Imaging (SFI) for Detection and Optical Characterization of Colorectal Lesions: A Prospective Randomized Controlled Study (INSIGHT Study)
Visão geral do estudo
Status
Condições
Descrição detalhada
This prospective randomized controlled study will compare high-definition white light endoscopy (WLE), Versatile Intelligent Staining Technology (VIST), and Spectral Flexible Imaging (SFI) for the detection and optical characterization of colorectal lesions during colonoscopy.
Participants will be randomized in a 1:1:1 ratio to one of the three imaging modalities. During the first-look withdrawal phase, the colon will be examined using the allocated modality. Detected lesions will be documented and characterized in vivo according to their location, size, morphology, and established endoscopic classification systems, including the Paris, Kudo, and JNET classifications. Lesions will subsequently be biopsied or resected as clinically appropriate and submitted for histopathological evaluation, which will serve as the reference standard for diagnostic performance analyses.
Standardized recordings of colorectal lesions will also be used for blinded review to assess interobserver and intraobserver agreement in optical diagnosis and endoscopic classification. In addition to evaluating lesion detection and characterization, the study will compare procedural quality metrics and safety across the imaging modalities.
The study is designed to determine whether VIST or SFI can improve colorectal lesion detection and optical characterization compared with conventional high-definition white light endoscopy.
Tipo de estudo
Inscrição (Estimado)
Estágio
- Não aplicável
Contactos e Locais
Contato de estudo
- Nome: Ari Ben Hur Stefani Leão, MD
- Número de telefone: +55 51 3195 2843
- E-mail: gpeg.pucrs@gmail.com
Locais de estudo
-
-
Rio Grande do Sul
-
Porto Alegre, Rio Grande do Sul, Brasil, 90160-090
- Hospital Sao Lucas da PUCRS
-
Contato:
- Ari Ben Hur Stefani Leão, MD
- Número de telefone: +55 51 3195 2843
- E-mail: gpeg.pucrs@gmail.com
-
-
Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Age ≥ 18 years
- Undergoing screening or surveillance colonoscopy
- Adequate bowel preparation (Boston Bowel Preparation Scale ≥6, with ≥2 per segment)
- Ability to understand and sign informed consent
Exclusion Criteria:
- History of inflammatory bowel disease (Crohn's disease or ulcerative colitis)
- Prior colorectal resection
- Colorectal stenosis preventing scope progression
- Pregnancy or breastfeeding
- Inadequate bowel preparation
- Clinical contraindication to colonoscopy
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Diagnóstico
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
Comparador Ativo: White Light Endoscopy (WLE)
Participants randomized to this arm will undergo colonoscopy using high-definition white light endoscopy (WLE) during the first-look withdrawal phase.
Colorectal lesions detected during this phase will be documented and optically characterized according to the study protocol.
Detected lesions will be biopsied or resected as clinically appropriate and submitted for histopathological evaluation.
|
Colonoscopy performed using high-definition white light imaging.
Outros nomes:
|
|
Experimental: Versatile Intelligent Staining Technology (VIST)
Participants randomized to this arm will undergo colonoscopy using Versatile Intelligent Staining Technology (VIST) during the first-look withdrawal phase.
Colorectal lesions detected during this phase will be documented and optically characterized according to the study protocol.
Detected lesions will be biopsied or resected as clinically appropriate and submitted for histopathological evaluation.
|
Colonoscopy performed using Versatile Intelligent Staining Technology (VIST).
Outros nomes:
|
|
Experimental: Spectral Flexible Imaging (SFI)
Participants randomized to this arm will undergo colonoscopy using Spectral Flexible Imaging (SFI) during the first-look withdrawal phase.
Colorectal lesions detected during this phase will be documented and optically characterized according to the study protocol.
Detected lesions will be biopsied or resected as clinically appropriate and submitted for histopathological evaluation.
|
Colonoscopy performed using Spectral Flexible Imaging (SFI).
Outros nomes:
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Adenoma Detection Rate (ADR)
Prazo: During index colonoscopy.
|
Proportion of participants with ≥1 colorectal polyp detected during the first-look withdrawal phase using the allocated imaging modality.
|
During index colonoscopy.
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Serrated Lesion Detection Rate
Prazo: During index colonoscopy.
|
Proportion of participants with ≥1 serrated lesion (e.g., sessile serrated lesion or hyperplastic polyp) detected during the first-look withdrawal phase using the allocated imaging modality, with histopathology confirmation when available.
|
During index colonoscopy.
|
|
Diagnostic Accuracy for Optical Characterization (Neoplastic vs Non-neoplastic)
Prazo: During index colonoscopy with post-procedure histopathology results.
|
Sensitivity, specificity, PPV, NPV, and overall accuracy of optical diagnosis for neoplastic versus non-neoplastic colorectal lesions, using histopathology as the reference standard.
|
During index colonoscopy with post-procedure histopathology results.
|
|
Agreement Between Optical Diagnosis and Histopathology
Prazo: During index colonoscopy with post-procedure histopathology results.
|
Agreement (Cohen's kappa) between in vivo optical diagnosis and histopathology for colorectal lesions.
|
During index colonoscopy with post-procedure histopathology results.
|
|
Concordance of Endoscopic Classifications With Histopathology
Prazo: During index colonoscopy with post-procedure histopathology results.
|
Agreement (Cohen's kappa) between endoscopic classifications (Paris, Kudo pit pattern, and JNET) assigned in vivo and histopathology.
|
During index colonoscopy with post-procedure histopathology results.
|
|
Interobserver and Intraobserver Agreement From Blinded Video Review
Prazo: Up to 12 months after index colonoscopy (video-based assessment).
|
Interobserver and intraobserver agreement (Cohen's kappa) for optical diagnosis and classification based on standardized video recordings of lesions reviewed independently and blinded to group allocation and histopathology.
|
Up to 12 months after index colonoscopy (video-based assessment).
|
|
Procedure Quality Metrics
Prazo: During index colonoscopy.
|
Withdrawal time (minutes), total procedure time (minutes), and cecal intubation rate.
|
During index colonoscopy.
|
|
Safety (Procedure-related Adverse Events)
Prazo: Up to 24 hours after colonoscopy.
|
Incidence of colonoscopy-related adverse events (e.g., bleeding, perforation, post-polypectomy complications).
|
Up to 24 hours after colonoscopy.
|
Colaboradores e Investigadores
Patrocinador
Colaboradores
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Conclusão Primária (Estimado)
Conclusão do estudo (Estimado)
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
- Neoplasias por local
- Neoplasias
- Condições Patológicas, Anatômicas
- Doenças Intestinais
- Neoplasias por Tipo Histológico
- Neoplasias gastrointestinais
- Neoplasias do Aparelho Digestivo
- Doenças do aparelho digestivo
- Doenças Gastrointestinais
- Neoplasias Intestinais
- Doenças retais
- Neoplasias Glandulares e Epiteliais
- Doenças do cólon
- Pólipos
- Pólipos intestinais
- Condições Patológicas, Sinais e Sintomas
- Neoplasias Colorretais
- Adenoma
- Pólipos colônicos
Outros números de identificação do estudo
- 00410826.8.0000.5336
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
Descrição do plano IPD
Informações sobre medicamentos e dispositivos, documentos de estudo
Estuda um medicamento regulamentado pela FDA dos EUA
Estuda um produto de dispositivo regulamentado pela FDA dos EUA
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 .