A Study of TmPSMA-02 Chimeric Antigen Receptor (CAR) T-cells in Patients With Metastatic Castration Resistant Prostate Cancer (mCRPC)

Metastatic Castration-resistant Prostate Cancer Clinical Trial

Official title: A Phase 1/2, Open-label, Multi-Center Study of Dually Armored Chimeric Antigen Receptor (CAR) T-cells (TmPSMA-02) in Patients With Metastatic Castration Resistant Prostate Cancer (mCRPC)

Status Terminated

Clinical Trial Summary

An open-label, multi-center, Phase 1/2 study to determine the safety, tolerability, and feasibility of dosing adult patients with mCRPC with genetically modified autologous T-cells (TmPSMA-02) engineered to express a CAR capable of recognizing the tumor antigen prostate-specific membrane antigen (PSMA) and activating the T-cell.

Clinical Trial Description

This is a Phase 1/2 single-arm study designed to identify the dose and regimen of TmPSMA-02 that can be safely administered intravenously following the lymphodepletion (LD) regimen to patients with mCRPC. The Phase 1 dose escalation portion of the study will employ a Bayesian Optimal Interval (BOIN) Design to define the Maximum Tolerated Dose (MTD) and determine the Recommended Phase 2 Dose (RP2D). Dose-limiting toxicities (DLTs) will be assessed from the start of LD regimen through 28-days post infusion of TmPSMA-02. The Phase 2 portion will employ a Simon's 2-stage design and include a single-arm of adult patients with mCRPC treated with the TmPSMA-02 at the RP2D. It is anticipated that up to 30 patients will enroll in the Phase 1 portion of the study and up to 84 patients will enroll in the Phase 2 portion of the study. ;

Related Conditions & MeSH terms

• Metastatic Castration-resistant Prostate Cancer
• Prostatic Neoplasms

• NCT number: NCT05489991
• Study type: Interventional
• Source: Tceleron Therapeutics, Inc.
• Status: Terminated
• Phase: Phase 1/Phase 2
• Start date: September 6, 2022
• Completion date: May 3, 2023