Gastric Cancer Clinicobiological Cohort Study
Official title: R-GASTIM - Clinicobiological Cohort of Gastric Cancers
Run by Centre Leon Berard · NCT07787052 · Data updated 2026-11-12
This study tests the tumor microenvironment in gastric and gastroesophageal junction cancers from patients who had surgery after standard neoadjuvant chemotherapy at a single center.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 60 (estimated) |
| Sponsor | Centre Leon Berard Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 1 site (Lyon) |
| Status | Recruiting |
| Started | September 30, 2024 |
| Main results expected | September 30, 2027 |
| Study ends | September 30, 2027 |
| Registry record updated | August 26, 2026 |
| Trial ID | NCT07787052 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with histologically proven, non-metastatic resectable gastric or GEJ adenocarcinoma (Stage IB–III) who received standard neoadjuvant chemotherapy and have an available archival FFPE tumor block with at least 20% tumor cells, plus collected lymph nodes.
✕Probably not a fit
Patients who do not have an archival FFPE block or who decline participation may not contribute to the study findings.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinicobiological cohort collects tumor and lymph node tissue from adults with non-metastatic, resectable gastric or GEJ adenocarcinoma who have completed standard neoadjuvant chemotherapy. RNA sequencing and HyperIon analysis are used to characterize the tumor microenvironment, using samples obtained as part of routine care. The study aims to describe molecular and cellular features in relation to treatment response and surgical outcomes. Enrollment is limited to patients with available archival FFPE blocks and a confirmed post-therapy pathology response per TRG criteria. Participation is voluntary and linked to standard clinical management at Centre Léon Bérard.
Why it matters
Potential benefit: Findings could improve understanding of how the tumor microenvironment relates to treatment response and may inform future personalized approaches.
How similar studies have gone: Similar microenvironment studies in gastric cancer using RNA sequencing have yielded biologically informative results, though this specific clinicobiological approach is relatively unique to this institution.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adult patients with histologically proven non-metastatic resectable gastric and gastroesophageal junction adenocarcinoma, Stage IB to III be treated with standard neoadjuvant chemotherapy * Knwon response to neoadjuvant chemotherapy as per TRG criteria * Surgery of primary tumor done at Centre Léon Bérard. Availability of archival FFPE tumor block from initial diagnosis with at least 20% of tumor cells and collected lymp nodes Exclusion Criteria: * Patient refusal to participate to this clinicobiological cohort
Where it's running
-
Centre Léon Bérard
Lyon, France Recruiting
Study contacts
- Study coordinator: Clelia Coutzac, MD,PhD
- Email: clelia.coutzac@lyon.unicancer.fr
- Phone: 0033478782828
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.