Understanding how the immune environment affects chemotherapy resistance in colorectal cancer

Tumor Immune Microenvironment Involvement in Colorectal Cancer Chemoresistance Mechanisms: a Patient-derived Tumoroids Prospective Collection From Systemic Treatment Naive Tumors

Observational University Hospital, Grenoble · NCT05038358

This study is trying to understand how the immune system around colorectal cancer affects how well chemotherapy works, aiming to help patients who are about to have surgery and haven't started treatment yet.

Quick facts

Study typeObservational
Enrollment60 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital, Grenoble Academic / other
Drugs / interventionschemotherapy
Locations1 site (Grenoble)
Trial IDNCT05038358 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the mechanisms of chemoresistance in colorectal cancer by developing tumoroids from fresh human primary colonic tumor tissue. It focuses on the role of the immune microenvironment in influencing tumor response to chemotherapy. By analyzing these tumoroids, researchers hope to identify new predictive markers for treatment response and develop personalized medicine strategies. The study targets patients with colorectal adenocarcinoma who are scheduled for surgical resection and have not yet received chemotherapy.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 years old with colorectal adenocarcinoma who are scheduled for immediate surgical resection and have not received prior chemotherapy.

Not a fit: Patients who are pregnant, breastfeeding, minors, or have certain viral infections (HIV, HBV, HCV) may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for colorectal cancer patients, enhancing their response to chemotherapy.

How similar studies have performed: While this approach is innovative, similar studies have shown promise in understanding tumor microenvironments and their impact on treatment responses.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male and female over 18 years old.
* Managed at the CHUGA for a colorectal adenocarcinoma
* With an indication for immediate surgical resection as part of the care.
* Patient naive from neo-adjuvant chemotherapy
* Patient did not object to the CRC-ORGA-2 study

Exclusion Criteria:

* Patients protected by law (pregnant or breastfeeding women, minors, patients under guardianship or trusteeship, persons deprived of their liberty or hospitalized under duress).
* Patients with positive HIV, HBV, HCV serology.

Where this trial is running

Grenoble

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Primary TumorColon TumorOrganoid collection from fresh human primary colonic tumor tissue
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.