Primary Mediastinal Large B-Cell Lymphoma Recurrent

This is a Phase I, prospective, dose-finding study to evaluate the safety, persistence, and clinical activity of GF-CART01 in subjects aged 18-70 with relapsed or refractory (R/R) B-cell hematological malignancies and failure of two-line or more standard chemotherapies or auto-hematopoietic stem cell transplantation (HSCT).This study is a traditional 3+3 dose-escalation design to observe dose-limiting toxicity (DLT), establish the maximum tolerated dose(MTD)/recommended phase 2 doses (RP2D), and preliminary efficacy of GF-CART01. RP2D may equal to or lower than MTD

This research study is evaluating the combination of drugs, pembrolizumab with chimeric antigen receptor (CAR) T-cell therapy, as a possible treatment for primary mediastinal B-cell lymphoma that has recurred after prior treatment. The names of the study drugs involved in this study are: \- Pembrolizumab Standard treatment will include: * CAR T-cell therapy (either axicabtagene-ciloleucel or lisocabtagene maraleucel) * Cyclophosphamide * Fludarabine

This phase I trial tests the safety, side effects and best dose of CC-99282 with rituximab for the treatment of patients who have received chimeric antigen receptor (CAR) T cell therapy for non-Hodgkins lymphoma and in whom have had a sub-optimal response early on to CAR T-cell therapy. Immunotherapy with CC-99282 may induce changes in the body's immune system and may interfere with the ability of tumor cells to grow and spread. Rituximab is a monoclonal antibody. It binds to a protein called CD20, which is found on B cells (a type of white blood cell) and some types of cancer cells. This may help the immune system kill cancer cells. Giving CC-99282 with rituximab may be a safe and effective treatment option for patients who have received CAR-T cell therapy for relapsed or refractory non-Hodgkin's lymphoma.