The Study on the Mechanism of Radiotherapy-elicited Immune Response

August 22, 2024 updated by: Kuai Le Zhao, MD, Fudan University
Radiotherapy plays an important role in multidisciplinary treatment of esophageal cancer. Data from many laboratories indicate that local radiation produces systemic, immune-mediated anti¬tumour and, potentially, antimetastatic effects. Additionally, the combination of local radiotherapy and immune-modulation can augment local tumour control and cause distant (abscopal) antitumour effects through increased tumour-antigen release and antigen-presenting cell (APC) cross-presentation, improved dendritic-cell (DC) function, and enhanced T cell priming. The generation of an effective antitumor immune response requires the presentation of tumor antigens to naïve CD8+ cells in tumor-draining lymph nodes (TDLN) . Tumor-draining lymph nodes, however, are often subject to the immunosuppressive activity of tumor-derived factors, such as cytokines and other bioactive molecules from tumor cells and their associated leukocytes in the primary tumor site that contribute to the overriding of effective rejection mechanisms. Thus, in TDLN a T cell tolerance rather than a T cell activation often occurs, thereby preventing immune attack and facilitating local tumor progression.

Study Overview

Status

Recruiting

Conditions

Detailed Description

In this study, the investigators collect clinical and biological evidence to interpret the impact of radiotherapy on tumor regression and immunity, and identify key molecular features and immune landscape patterns to characterize patients sensitive/resistant to radiotherapy; and define the dynamic changes occurring in TME and lymph node after radiotherapy.

Study Type

Observational

Enrollment (Estimated)

200

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • China
      • Shanghai, China
        • Recruiting
        • Fudan University Shanghai Cancer Center
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients with esophageal cancer treated with radiotherapy

Description

Inclusion Criteria:

  1. new diagnosis locoregional esophageal cancer;
  2. pathologic diagnosis is squamous carcinoma;
  3. Patients had received either neoadjuvant or definitive radiotherapy
  4. tumor and lymph node tissue can be collected and can be conducted with single cell RNA (scRNA)-sequencing and other sequencings.

Exclusion Criteria:

  1. Pregnant or lactating women.
  2. Unable or rejection to receive radiotherapy or unable to comply with study requirements or follow-up schedule.
  3. Inability to provide informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Genetic signature of patients who had received neoadjuvant or definitive radiation therapy
Time Frame: 4-year
Detailed mechanism of radiation-activated immunity under single-cell sequencing.gene mutations, copy number variants.
4-year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Fudan University

Investigators

  • Study Director: Kuaile Zhao, MD, Fudan University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 1, 2022

Primary Completion (Estimated)

July 20, 2026

Study Completion (Estimated)

July 31, 2026

Study Registration Dates

First Submitted

April 25, 2024

First Submitted That Met QC Criteria

April 30, 2024

First Posted (Actual)

May 1, 2024

Study Record Updates

Last Update Posted (Actual)

August 26, 2024

Last Update Submitted That Met QC Criteria

August 22, 2024

Last Verified

August 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ESO-shanghai 23

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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