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Circulating Tumor DNA Methylation Guiding Postoperative Adjuvant Chemotherapy in Stage III Colorectal Cancer

NCT06167967 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 990

Last updated 2024-05-17

No results posted yet for this study

Summary

The goal of this randomized controlled trial is to investigate whether ctDNA methylation is a more precise indicator to guide postoperative adjuvant chemotherapy in stage Ill colorectal cancer. The main questions it aims to answer are:

1. Whether ctDNA methylation-guided escalation strategy is superior to standard treatment for stage III high-risk CRC patients.
2. Whether ctDNA methylation-guided de-escalation strategy is non-inferior to standard treatment for stage III low-risk CRC patients.

325 cases were included in the high-risk cohort (T4 and/or N2) and 665 cases were included in the low-risk cohort (T1-T3, N1). Then patients in each cohort were randomly assigned to ctDNA-guided treatment (ctDNA-guided group) and standard treatment (standard treatment group) in a ratio of 2:1. The standard treatment group and ctDNA-negative group in the high-risk cohort were treated with XELOX regimen for 6 months, and the ctDNA-positive group in the high-risk cohort was treated with cmFOLFOXIRI regimen for 6 months. The standard treatment group and the ctDNA-positive group in the low-risk cohort were treated with XELOX regimen for 3 months, while the ctDNA-negative group in the low-risk cohort did not receive adjuvant chemotherapy.

Conditions

Interventions

DIAGNOSTIC_TEST

ctDNA methylation

A blood-based circulating tumor DNA methylation assay that uses 6 different methylation markers, SEPT9 region1, SEPT9 region2, BCAT1, IKZF1, BCAN and VAV3.

DIAGNOSTIC_TEST

standard treatment

This group was treated according to standard procedure

Sponsors & Collaborators

  • Sir Run Run Shaw Hospital

    lead OTHER

Principal Investigators

  • Zhangfa Song, Dr · Sir Run Run Shaw Hospital

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-04-08
Primary Completion
2026-12-31
Completion
2029-12-31

Countries

  • China

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06167967 on ClinicalTrials.gov