A Long-term Follow-up Study of Patients With ARD103 CAR-T Cell Therapies

Participants who receive administration of ARD103 (i.e., a partial dose or a full dose) will roll into the LTFU study upon completion of the 24-month interventional study period (Study: ARD103\_ARCE-CL-P-001), or after early discontinuation from the interventional study protocol. The LTFU study is a study intended to characterize long-term safety for 15 years post-ARD103 administration. Participants who complete the full 24-month interventional study period will undergo an additional 13 years of monitoring under the LTFU study. No IP will be administered during the LTFU study. The number and percentage of participants with ARD103 CAR-T cell therapy related AEs, SAEs, and AESIs will be recorded throughout the LTFU Period.