- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07673393
Improving Prognostication in Colon Cancer (MARBLE)
Improving Prognostication of Localised Colon Cancer by Combining Liquid Biopsy and Histology: a Multicentric, Prospective Study
The goal of this study is to test better ways to predict if cancer will return after surgery in adults (18+) who have been diagnosed with stage II or III colon cancer.
The main questions it aims to answer are:
- Can computer programs (Artificial Intelligence) and special blood tests give more accurate information about the risk of cancer returning than the methods doctors use today?
- Does combining these new tests help doctors better understand which patients really need chemotherapy and which do not?
Researchers will compare the new computer and blood tests to the standard hospital methods used now to see if the new way is more accurate in predicting the cancer's behavior
Participants will:
- Sign a form saying they agree to take part in the study
- Have their standard surgery to remove the tumor
- Give a few extra teaspoons of blood during their regular, scheduled hospital visits
- Allow researchers to scan and study a small piece of the tumor that was already removed during surgery
- Continue with their normal hospital check-ups for up to five years so researchers can track their health
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
The MARBLE study is a prospective, multicentric, single-arm exploratory trial designed to integrate novel tissue- and blood-based prognostic modalities to improve risk stratification for patients with Stage II and III colon cancer. The study evaluates three primary prognostic modalities:
- Pathological Tumor-Node-Metastasis (pTNM) staging
- Machine Learning (ML) Histopathology: A validated graph neural network model analyzes digitized hematoxylin and eosin (H&E) stained slides to generate survival predictions and predict regional gene expression independent of pTNM stage
- Multi-modal ctDNA Assay: An in-house circulating tumor DNA (ctDNA) assay that moves beyond mutation detection by profiling epigenomic markers and genome-wide fragmentomic patterns in cell-free DNA (cfDNA) to enhance sensitivity for minimal residual disease (MRD).
Study Design and Workflow Participants are stratified post-surgery into four treatment-related groups (A-D) that reflect real-world standard-of-care (SoC) pathways rather than randomized arms:
- Group A: Low-risk Stage II (no adjuvant chemotherapy).
- Group B/C: Intermediate to high-risk Stage II/III (3-6 months of adjuvant chemotherapy).
- Group D: High-risk Stage III (6 months of chemotherapy), featuring intensified longitudinal sampling every 6 months for 36 months post-treatment to capture MRD dynamics.
Statistical Approach The primary analysis involves comparing mono-modal and multi-modal risk models to evaluate their prognostic performance for Time to Recurrence (TTR).
Technical evaluation will utilize Cox proportional hazards models, assessing discrimination via ΔC-index, model fit through likelihood ratio testing, and clinical utility using Net Reclassification Improvement (NRI). The study also quantifies the lead time between molecular (ctDNA) and radiological recurrence.
Tipo di studio
Iscrizione (Stimato)
Contatti e Sedi
Contatto studio
- Nome: Gertjan Rasschaert, Medical doctor
- Numero di telefono: +32 16 34 37 91
- Email: gertjan.rasschaert@uzleuven.be
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- Voluntary written informed consent of the participant or their legally authorized representative has been obtained prior to any screening procedures.
- Male and female participants, at least 18 years of age at the time of signing the Informed Consent Form (ICF).
- Newly diagnosed primary colon tumor clinically and/or histologically consistent with localized colon adenocarcinoma and planned for curative-intent surgical resection.
- Clinical stage compatible with non-metastatic disease at time of screening and considered eligible for standard curative-intent management according to investigator assessment.
- WHO (ECOG) performance status ≤ 3 at baseline.
Exclusion Criteria:
- Participant has been diagnosed with metastatic disease (Stage IV)
- Participant has been diagnosed with rectal cancer
- Participant has been diagnosed with synchronous primary colon tumors (i.e., presence of two or more primary colon tumors detected simultaneously at diagnosis)
- Participant has received prior systemic therapy (chemotherapy, targeted therapy, immunotherapy, or radiotherapy) for colon cancer
- Participation in an interventional Study with an investigational medicinal product (IMP) or device within 30 days prior to inclusion.
- Participant had prior history of colon cancer requiring systemic treatment or major colorectal oncologic surgery.
- Any severe, uncontrolled, or life-threatening medical condition that, in the opinion of the investigator, could interfere with study participation, interpretation of study assessments, or pose excessive risk to the participant (e.g. severe cardiac, hepatic, renal, or uncontrolled infectious disease).
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Time to Recurrence (TTR)
Lasso di tempo: Up to 5 years (the maximum follow-up period for recurrence and survival from the date of surgery or end of adjuvant chemotherapy)
|
The primary outcome measure for the MARBLE study is Time to Recurrence (TTR).
This variable is defined as the time interval from the date of curative-intent surgery to the date of the first documented colon cancer recurrence, whether local or distant.
|
Up to 5 years (the maximum follow-up period for recurrence and survival from the date of surgery or end of adjuvant chemotherapy)
|
Collaboratori e investigatori
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Studia le date principali
Inizio studio (Stimato)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
- Neoplasie per sede
- Neoplasie
- Malattie intestinali
- Neoplasie gastrointestinali
- Neoplasie dell'apparato digerente
- Malattie dell'apparato digerente
- Malattie gastrointestinali
- Neoplasie colorettali
- Neoplasie intestinali
- Malattie del colon
- Neoplasie del colon
- Tecniche investigative
- Gestione dei campioni
- Tecniche di laboratorio clinico
- Tecniche e procedure diagnostiche
- Diagnosi
- Forature
- Procedure chirurgiche, operative
- Collezione di campioni di sangue
Altri numeri di identificazione dello studio
- S72061
Piano per i dati dei singoli partecipanti (IPD)
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Descrizione del piano IPD
Informazioni su farmaci e dispositivi, documenti di studio
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Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .