NCT05789498

Investigating the Biomarkers in Tumor and Peripheral Blood to Evaluate the Efficacy of Cancer Immunotherapy in Chest Cancer Patients

Investigating the Biomarkers in Tumor Microenvironment and Peripheral Blood Microenvironment to Evaluate the Efficacy of Cancer Immunotherapy in Chest Cancer Patients

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 60 (estimated)
• Sponsor: Zhao Jun · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

This study aims to investigate the impact of immunotherapy on the immune status of tumor microenvironment and peripheral blood of chest cancer patients. To do so, the investigators plan to collect tumor tissue and peripheral blood samples before and after immunotherapy, and use single-cell RNA sequencing, Multiplex immunohistochemistry, and flow cytometry. The investigators will analyze changes in the proportion of cancer cell-specific T-cell subpopulations related to treatment response before and after therapy, and seek biological markers that can predict the efficacy of immunotherapy.

Detailed description

The potential biomarkers, that can be utilized to predict the efficacy of cancer immunotherapy, in tumor tissue and peripheral blood are planning to be verified in lung cancer patients and esophageal cancer patients. Tumor tissues, acquired from surgery to remove tumor, are investigated by single-cell RNA sequencing, Multiplex immunohistochemistry etc. to explore the biomarkers. In addition, immune microenvironment of the peripheral blood mononuclear cells were analyzed by flow cytometry and ELISPOT to quantify specific T cells groups that are correlated with efficacy of cancer immunotherapy. The changes in the proportion of specific T-cell subpopulations that can kill cancer cells will be analyzed before treatment and after treatment. The immunotherapy responses before and after therapy are planning to analyzed with the content of specific T cells. Thus the investigators will seek biological markers that can predict the efficacy of immunotherapy.

Conditions

• Lung Cancer
• Esophageal Cancer

Interventions

Type	Name	Description
OTHER	In vitro stimulation of Pbmc with tumor antigen nanoparticles	PBMCs were isolated from peripheral blood of cancer patients, and PBMC are co-incubated with nanoparticles loading tumor antigens for specific time in vitro to detect T cells that are related with efficacy of cancer immunotherapy. The content of such T cells are studies the correlation with the efficacy of cancer immunotherapy and patient prognosis.

Timeline

• Start date: 2023-02-12
• Primary completion: 2024-03-30
• Completion: 2024-06-30
• First posted: 2023-03-29
• Last updated: 2023-03-29

Locations

1 site across 1 country: China