- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus 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)
Tutkimuksen yleiskatsaus
Tila
Ehdot
Yksityiskohtainen kuvaus
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.
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Opiskeluyhteys
- Nimi: Ari Ben Hur Stefani Leão, MD
- Puhelinnumero: +55 51 3195 2843
- Sähköposti: gpeg.pucrs@gmail.com
Opiskelupaikat
-
-
Rio Grande do Sul
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Porto Alegre, Rio Grande do Sul, Brasilia, 90160-090
- Hospital Sao Lucas da PUCRS
-
Ottaa yhteyttä:
- Ari Ben Hur Stefani Leão, MD
- Puhelinnumero: +55 51 3195 2843
- Sähköposti: gpeg.pucrs@gmail.com
-
-
Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
- Vanhempi Aikuinen
Hyväksyy terveitä vapaaehtoisia
Kuvaus
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
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Diagnostiikka
- Jako: Satunnaistettu
- Inventiomalli: Rinnakkaistehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
|
Active Comparator: 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.
Muut nimet:
|
|
Kokeellinen: 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).
Muut nimet:
|
|
Kokeellinen: 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).
Muut nimet:
|
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
Adenoma Detection Rate (ADR)
Aikaikkuna: During index colonoscopy.
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Proportion of participants with ≥1 colorectal polyp detected during the first-look withdrawal phase using the allocated imaging modality.
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During index colonoscopy.
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
Serrated Lesion Detection Rate
Aikaikkuna: 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.
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During index colonoscopy.
|
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Diagnostic Accuracy for Optical Characterization (Neoplastic vs Non-neoplastic)
Aikaikkuna: 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.
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During index colonoscopy with post-procedure histopathology results.
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Agreement Between Optical Diagnosis and Histopathology
Aikaikkuna: During index colonoscopy with post-procedure histopathology results.
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Agreement (Cohen's kappa) between in vivo optical diagnosis and histopathology for colorectal lesions.
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During index colonoscopy with post-procedure histopathology results.
|
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Concordance of Endoscopic Classifications With Histopathology
Aikaikkuna: During index colonoscopy with post-procedure histopathology results.
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Agreement (Cohen's kappa) between endoscopic classifications (Paris, Kudo pit pattern, and JNET) assigned in vivo and histopathology.
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During index colonoscopy with post-procedure histopathology results.
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Interobserver and Intraobserver Agreement From Blinded Video Review
Aikaikkuna: Up to 12 months after index colonoscopy (video-based assessment).
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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.
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Up to 12 months after index colonoscopy (video-based assessment).
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Procedure Quality Metrics
Aikaikkuna: During index colonoscopy.
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Withdrawal time (minutes), total procedure time (minutes), and cecal intubation rate.
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During index colonoscopy.
|
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Safety (Procedure-related Adverse Events)
Aikaikkuna: Up to 24 hours after colonoscopy.
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Incidence of colonoscopy-related adverse events (e.g., bleeding, perforation, post-polypectomy complications).
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Up to 24 hours after colonoscopy.
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Yhteistyökumppanit ja tutkijat
Sponsori
Yhteistyökumppanit
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Arvioitu)
Ensisijainen valmistuminen (Arvioitu)
Opintojen valmistuminen (Arvioitu)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
- Neoplasmat sivustoittain
- Neoplasmat
- Patologiset tilat, anatomiset
- Suoliston sairaudet
- Neoplasmat histologisen tyypin mukaan
- Ruoansulatuskanavan kasvaimet
- Ruoansulatuskanavan kasvaimet
- Ruoansulatuskanavan sairaudet
- Ruoansulatuskanavan sairaudet
- Suoliston kasvaimet
- Peräsuolen sairaudet
- Kasvaimet, rauhas- ja epiteelikasvaimet
- Paksusuolen sairaudet
- Polyypit
- Suoliston polyypit
- Patologiset tilat, merkit ja oireet
- Kolorektaaliset kasvaimet
- Adenoma
- Paksusuolen polyypit
Muut tutkimustunnusnumerot
- 00410826.8.0000.5336
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