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NCT05508399

Biomarker Analysis of Tislelizumab Combined With Chemotherapy for Perioperative Treatment of G/GEJ Adenocarcinoma

Completed Last updated 4 December 2025
What this trial tests

trial testing DNA panel and RNA Sequencing in Locally Advanced Gastric Adenocarcinoma in 28 participants. Completed in 10 October 2025.

Timeline
18 July 2022
Primary endpoint
10 January 2024
10 October 2025

Quick facts

Lead sponsorXijing Hospital
StatusCompleted
Study typeOBSERVATIONAL
Enrollment28
Start date18 July 2022
Primary completion10 January 2024
Estimated completion10 October 2025
Sites1 location across China

Drugs / interventions tested

Conditions studied

Sponsor

Xijing Hospital

Who can join

Adults 18 to 80, any sex, with Locally Advanced Gastric Adenocarcinoma or PD-1. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

G/GEJ adenocarcinoma is one of the most common malignant tumors in China, ranking the fifth highest incidence and third highest mortality worldwide. Currently, surgical resection is the preferred treatment for G/GEJ adenocarcinoma, while the 5-year survival rate of patients is lower than 25%. Compared with surgical resection, immunotherapy is proved to be able to effectively prolong the survival time of patients. On one hand, with the continuous promotion of immunotherapy drugs, the exploration of neoadjuvant application of immunotherapy in G/GEJ adenocarcinoma has become a hotspot in recent years. It's also on their way that clinical trials of programmed death receptor-1 (PD-1), programmed death ligand-1 (PD-L1) and other immune checkpoints are carried out. On the other hand, the research found that although the curative effect of immune therapy seems better, the present G/GEJ adenocarcinoma immunotherapy marker researches mainly focused on the late stage of the cancer, with few studies of immune markers of neoadjuvant therapy for G/GEJ adenocarcinoma. Additionally, it's not quite feasible for single biomarkers to predict the immune treatment effect precisely. Therefore, combined with clinicopathology and therapeutic effects, this study is aimed to construct the efficacy prediction model of anti-PD-1 antibody together with chemotherapy for G/GEJ adenocarcinoma, by detecting RNA expression. Furthermore, this study will perform drug sensitivity test and bio-molecular test on patient derived organoid model to validate the biomarkers found from biological specimens.

Publications & conference data

4 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Organoids: development and applications in disease models, drug discovery, precision medicine, and regenerative medicine.
    Yao Q, Cheng S, Pan Q, Yu J, et al · · 2024 · cited 40× · PMID 39309690 · DOI 10.1002/mco2.735
  2. The application of organoids in investigating immune evasion in the microenvironment of gastric cancer and screening novel drug candidates.
    Kan L, Yu Y, Wang Y, Shi L, et al · · 2025 · cited 6× · PMID 40287758 · DOI 10.1186/s12943-025-02328-4
  3. RNA modifications in cancer.
    Wu H, Chen S, Li X, Li Y, et al · · 2025 · cited 5× · PMID 39802639 · DOI 10.1002/mco2.70042
  4. Immune organoid for cancer immunotherapy.
    Wang XH, Wang WY, Sun ZJ. · · 2025 · cited 2× · PMID 40698131 · DOI 10.1016/j.apsb.2025.04.031

Verify or expand the search:

Other recruiting trials for Locally Advanced Gastric Adenocarcinoma

Currently open trials in the same condition.

Other Xijing Hospital trials

Trials by the same sponsor.

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