Clinical Study of XPO-1 Inhibitors Plus CAR-T Cells in Relapsed Refractory B-cell Non-Hodgkin's Lymphoma

B-cell non-Hodgkin's lymphoma (B-NHL) is the most common hematological malignancy originating from lymphohematopoietic tissue. Lymphoma is now one of the most rapidly growing malignancies worldwide, with approximately 350,000 new cases and over 200,000 deaths worldwide each year.With the use of rituximab in combination with standard chemotherapy regimens, progression-free survival (PFS) and overall survival (OS) in B-NHL have improved significantly, yet primary resistance or relapse progression still occurs in 40%-50% of B-NHL patients.The most widely used CAR-T therapy for R/R B-NHL in clinical practice is CAR-T therapy targeting CD19, which has a complete remission rate (CR) of 40%-53% and an overall remission rate (ORR) of 52%-82%.XPO1 inhibitors are potential drugs to enhance the anti-lymphoma effect of CD19 CAR-T cells, this study will evaluate the efficacy and safety of XPO-1 inhibitors in combination with CAR-T cells in relapsed refractory B-cell non-Hodgkin's lymphoma.