Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Improving Prognostication in Colon Cancer (MARBLE)

22. juni 2026 oppdatert av: Universitaire Ziekenhuizen KU Leuven

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

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

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.

Studietype

Observasjonsmessig

Registrering (Antatt)

400

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

The MARBLE study focuses on a target population of approximately 400 adult participants with pathologically confirmed Stage II or III colon cancer. To achieve this enrollment, the study plans to screen up to 500 patients who are receiving standard-of-care surgical treatment for suspected localized colon cancer.

Beskrivelse

Inclusion Criteria:

  1. Voluntary written informed consent of the participant or their legally authorized representative has been obtained prior to any screening procedures.
  2. Male and female participants, at least 18 years of age at the time of signing the Informed Consent Form (ICF).
  3. Newly diagnosed primary colon tumor clinically and/or histologically consistent with localized colon adenocarcinoma and planned for curative-intent surgical resection.
  4. Clinical stage compatible with non-metastatic disease at time of screening and considered eligible for standard curative-intent management according to investigator assessment.
  5. WHO (ECOG) performance status ≤ 3 at baseline.

Exclusion Criteria:

  1. Participant has been diagnosed with metastatic disease (Stage IV)
  2. Participant has been diagnosed with rectal cancer
  3. Participant has been diagnosed with synchronous primary colon tumors (i.e., presence of two or more primary colon tumors detected simultaneously at diagnosis)
  4. Participant has received prior systemic therapy (chemotherapy, targeted therapy, immunotherapy, or radiotherapy) for colon cancer
  5. Participation in an interventional Study with an investigational medicinal product (IMP) or device within 30 days prior to inclusion.
  6. Participant had prior history of colon cancer requiring systemic treatment or major colorectal oncologic surgery.
  7. 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).

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Time to Recurrence (TTR)
Tidsramme: 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)

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Universitaire Ziekenhuizen KU Leuven

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. september 2026

Primær fullføring (Antatt)

1. september 2033

Studiet fullført (Antatt)

1. september 2033

Datoer for studieregistrering

Først innsendt

22. juni 2026

Først innsendt som oppfylte QC-kriteriene

22. juni 2026

Først lagt ut (Faktiske)

29. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

29. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

22. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • S72061

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

There are currently no plans to share de-identified individual participant data with the general public. This is to ensure the strict protection of participant confidentiality and the security of personal health information as required by the General Data Protection Regulation (GDPR) and Belgian law

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Abonnere