Viewing Study NCT05673434


Ignite Creation Date: 2025-12-25 @ 2:32 AM
Ignite Modification Date: 2025-12-26 @ 1:08 AM
Study NCT ID: NCT05673434
Status: UNKNOWN
Last Update Posted: 2023-01-06
First Post: 2022-12-21
Is NOT Gene Therapy: False
Has Adverse Events: False

Brief Title: A Clinical Study on the Safety and Efficacy of CAR-T Therapy for the TM4SF1-positive Tumors of Digestive System
Sponsor: Changhai Hospital
Organization:

Study Overview

Official Title: A Clinical Study on the Safety and Efficacy of CAR-T Therapy for the TM4SF1-positive Tumors of Digestive System
Status: UNKNOWN
Status Verified Date: 2022-12
Last Known Status: NOT_YET_RECRUITING
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: Transmembrane 4 L Six Family Member 1 (TM4SF1) is highly expressed in many tumors of digestive system .

The Chimeric Antigen Receptor T-cells (CAR-T) that target TM4SF1 has been generated in our good manufacturing practices (GMP) facility and the anti-tumor effects have been demonstrated in multiple in vitro and in vivo studies.

Clinical studies are proposed here to evaluate the anti-tumor activity of these cell therapy products for treatment of patients with TM4SF1 positive tumors of digestive system. In this study, the safety, tolerance, and preliminary efficacy of CART-TM4SF1 cells will be examined in patients with refractory/recurrent advanced pancreatic cancer, colorectal cancer, gastric cancer or liver cancer.

Clinical and immunological responses will be evaluated about 30 days and last up to 2 years after CAR-T cell infusion.
Detailed Description: Background:

While great progress has been made in CAR T-cell therapy for the treatment of hematologic malignancies, its use in solid tumors is still at the exploratory stage.Transmembrane 4 L Six Family Member 1 (TM4SF1) protein mediates signal transduction events that play a role in the regulation of cell development, activation, growth and motility. It is a cell surface antigen and is highly expressed in different carcinomas.The investigators have developed novel TM4SF1-targeting CAR T-cells (CART-TM4SF1 cells) for the treatment of digestive system tumors.

These engineered T-cells can target and kill the TM4SF1-positive tumor cells in vitro or in mice. Both of the CAR molecules contain a safety switch based on epidermal growth factor receptor (EGFR) to ensure the safety.The investigators propose to investigate the feasibility, safety, and efficacy of CART-TM4SF1 cells for digestive system tumors in patients.

Objectives:

Primary objectives:

1. To determine the safety/tolerance dosages and adverse effects of CART-TM4SF1 cells cells in the treatment of TM4SF1-positive recurrent/refractory advanced tumors of digestive system.
2. To preliminarily evaluate the efficacy of CART-TM4SF1 cells in the treatment of TM4SF1-positive recurrent/refractory advanced tumors of digestive system.

Secondary objectives:

1. To determine the pharmacokinetic (PK)/pharmacodynamic (PD) characteristics of CART-TM4SF1 cells in humans.
2. To evaluate the overall survival (OS) and tumor regression after treatment.
3. To assess the life quality of patients

Study population:

The study population includes 12-24 patients with refractory/recurrent advanced digestive system tumors with positive expression of TM4SF1. The subjects will receive four incremental doses (3-6 subjects in each dose group), as well as safety and preliminary efficacy evaluation.

Design:

* This is a single-center open-label clinical study.
* Recruit patients with refractory/recurrent digestive system tumors, with written consent for this study. Perform biopsy to determine the expression of TM4SF1 of the tumor with immuno-histochemistry (IHC).
* Collect peripheral blood mononuclear cell (PBMC) from the patients, isolate and activate the T cells and transfect them with TM4SF1 targeting CAR, expand the transfected T cells as needed, assess the quality and antitumor activity of the CAR-T products in vitro and then transfer them back the patients via systemic or local injections, and follow up closely to collect related results as needed.
* Clinical and immunological responses will be evaluated closely in about 30 days and last up to 2 years after back-transfusion.

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: