A Study to Evaluate the Safety and Efficacy of A2B530, a Logic-gated CAR T, in Participants With Solid Tumors That Express CEA and Have Lost HLA-A*02 Expression
Condition(s) studied
Investigational drug(s) / intervention(s)
A2B530: Autologous logic-gated Tmod CAR T-cells
xT-Onco with HLA-LOH Assay: An investigational next generation sequencing (NGS) in vitro diagnostic (IVD) medical device
Study summary
The goal of this study is to test A2B530,an autologous logic-gated Tmod™ CAR T-cell product in subjects with solid tumors including colorectal cancer (CRC), pancreatic cancer (PANC), non-small cell lung cancer (NSCLC), and other solid tumors that express CEA and have lost HLA-A\*02 expression.
The main questions this study aims to answer are:
* Phase 1: What is the maximum or recommended dose of A2B530 that is safe for patients
* Phase 2: Does the recommended dose of A2B530 kill the solid tumor cells and protect the patient's healthy cells
Participants will be required to perform study procedures and assessments, and will also receive the following study treatments:
* Enrollment and Apheresis in BASECAMP-1 (NCT04981119)
* Preconditioning Lymphodepletion (PCLD) Regimen
* A2B530 Tmod CAR T cells at the assigned dose
Eligibility
Primary outcome measure(s)
- Phase 1: Rate of adverse events and dose limiting toxicities (DLTs) by dose level — From the time of Informed consent until 24 months (2 years) post A2B530 infusion.
Adverse Events and toxicity will be evaluated according to the Cancer Therapy Evaluation Program Common Terminology Criteria for Adverse Events version 5.0 (or current version). Cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS) events will be graded according to the criteria described in the current protocol. - Phase 1: Recommended Phase 2 Dose (RP2D) — 21 days post A2B530 infusion
The RP2D will be identified utilizing a BOIN study design in addition to considering safety and biomarker analysis. - Phase 2: The Overall Response Rate (ORR) for patients — 24 months post A2B530 infusion
The ORR will be evaluated per RECIST v1.1 and assessed by independent central review.
Trial sites (8)
| Facility | City | Region | Status |
|---|---|---|---|
| Banner Health | Gilbert | Arizona | |
| University of California San Diego | La Jolla | California | |
| UCLA Medical Center | Los Angeles | California | |
| Moffitt Cancer Center | Tampa | Florida | |
| Mayo Clinic Rochester | Rochester | Minnesota | |
| Washington University | St Louis | Missouri | |
| NYU Langone Medical Center | New York | New York | |
| MD Anderson Cancer Center | Houston | Texas |
More A2 Biotherapeutics Inc. trials in the USA
Other trials for the same condition
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
View NCT05736731 on ClinicalTrials.gov ↗ ← All trials in the USA