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Comprehensive Analysis of Gut Microbiota Signatures in Metastatic Colorectal Cancer

NCT07154173 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 300

Last updated 2025-12-31

No results posted yet for this study

Summary

Colorectal cancer (CRC) is one of the most common and deadly cancers worldwide. About 1 in 4 people with CRC already have cancer spread (metastasis) when first diagnosed, and about half develop spread during their illness. Recent research shows that bacteria living in the gut and even within tumors might play an important role in how cancer spreads.

The goal of this study is to better understand how bacteria might influence the spread of colorectal cancer. The main questions the investigators aim to answer are:

Are there differences in bacteria between people whose cancer has spread and those whose cancer has not spread? Could certain bacteria help predict which cancers might spread?

To answer these questions, the investigators will:

Collect different types of samples from participants:

Tumor tissue Normal tissue near the tumor Tissue from where cancer has spread Stool samples before surgery Study the bacteria in these samples using advanced testing methods Compare bacterial patterns between different groups

People can take part in this study if they:

Are between 18 and 75 years old Have colorectal cancer confirmed by doctors Have not taken antibiotics recently Do not have immune system problems

This research may help us:

Understand why some colorectal cancers spread Find new ways to predict which cancers might spread Develop better treatments for colorectal cancer

Conditions

  • Rectal Neoplasms
  • Colon Neoplasms
  • Microbiota
  • Metagenome

Interventions

PROCEDURE

Biospecimen Collection Procedure

Collection of fecal samples from healthy volunteers, non-metastatic (M0) and metastatic (M1) colorectal cancer patients. Additionally, collection of tissue samples during surgery from operable patients (M0 and M1) for subsequent research analysis.

Sponsors & Collaborators

  • Sixth Affiliated Hospital, Sun Yat-sen University

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-01-01
Primary Completion
2026-12-31
Completion
2026-12-31

Countries

  • China

Study Locations

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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 NCT07154173 on ClinicalTrials.gov