A Study of CNA3103 (LGR5-targeted, Autologous CAR-T Cells) Administered to Subjects With Metastatic Colorectal Cancer

This study aims to determine the safety and best response of treatment with CNA3103 (Leucine-rich repeat-containing G protein-coupled receptor 5 [LGR5]-targeted, Autologous Chimeric Antigen Receptor (CAR) -T Cells), for participants with Metastatic Colorectal Cancer.
Participants may undergo a pre-screening biopsy procedure to determine expression of LGR5.
Participants will undergo screening procedures, including leukapheresis (collection of T cells) and lymphodepletion (chemotherapy), up to 40 days prior to CNA3103 dosing.
Participants will receive a single Intravenous dose of CNA3103.
Expansion cohorts will open after determination of the maximum tolerated dose and recommended phase 2 dose in the dose escalation stage.
Participants will be followed up, monitored and will attend study visits for safety and research related tests and procedures for 2 years until disease progression, unacceptable toxicity or intolerable adverse event/s, death or withdrawal of consent.