Multicenter, Single-Arm Exploratory Phase I Clinical Study (Assessment of Safety and Efficacy) of Fully Human BAFF-R Chimeric Antigen Receptor T-Cell Injection in Relapsed/Refractory BAFF-R-Positive B-Cell Lymphoma

The aim of this study is to analyze the safety of BAFF-R Chimeric Antigen Receptor T-Cell Injection (BAFF-R CAR-T) in participants with relapsed/refractory BAFF-R-positive B-cell lymphoma and explore the Maximum Tolerated Dose (MTD). The secondary objective of this study is to explore the efficacy of BAFF-R CAR-T in participants with relapsed/refractory BAFF-R-positive B-cell lymphoma. The study also aims to explore the pharmacokinetic characteristics of BAFF-R CAR-T in vivo and the impact of BAFF-R CAR-T on lymphocyte subsets in vivo.