Autologous Hematopoietic Stem Cell Transplantation

This phase II trial tests how well epcoritamab in combination with rituximab, gemcitabine and oxaliplatin (R-GemOx) works as treatment given after the cancer has not responded to other treatments (salvage therapy) before autologous stem cell transplant in treating patients with diffuse large B-cell lymphoma (DLBCL) that has come back after a period of improvement (relapsed) or that does not respond to treatment (refractory). Epcoritamab is a so-called bispecific antibody, a molecule that can bind simultaneously to two different receptors (proteins present on the cell surface). Epcoritamab binds to a receptor called CD3 with one part of the antibody and to a receptor called CD20 with another part of the antibody. CD3 is expressed on T cells, which are important cells of the immune system that help the body fight cancers and infections. CD20 is expressed on the surface of DLBCL cells. By simultaneous binding to CD3 and CD20, epcoritamab brings T cells and DLBCL cells close together and activates the T cells to kill the lymphoma cells. Rituximab is a so-called monoclonal antibody, a molecule that binds to a single receptor. Like epcoritamab, rituximab binds to CD20. After binding to CD20, rituximab activates the immune system to kill the lymphoma cell through several different mechanisms. Gemcitabine is a chemotherapy drug that blocks the cells from making DNA and may kill cancer cells. Oxaliplatin is in a class of medications called platinum-containing antineoplastic agents. It damages the cell's DNA and may kill cancer cells. Giving epcoritamab-R-GemOx as therapy before an autologous stem cell transplant may help kill cancer cells in the body and help make room in the patient's bone marrow for new blood-forming cells (stem cells) to grow.

This is a randomized, open-label, prospective, multicenter phase III superiority study in patients with newly diagnosed stage IV extranodal NK/T-cell lymphoma. The study compares two frontline induction strategies followed by consolidation with autologous hematopoietic stem cell transplantation in patients who achieve a protocol-defined strict complete remission. Eligible participants will be randomized 1:1 to Arm A or Arm B, stratified by three-level PINK-E risk category. Arm A consists of one cycle of GELAD induction followed by three cycles of MEDA chemotherapy. Participants who achieve strict complete remission after key response assessment will proceed to autologous hematopoietic stem cell transplantation consolidation. Arm B consists of four cycles of LEAP induction with sintilimab, pegaspargase, and anlotinib. Participants who achieve strict complete remission will receive high-dose methotrexate CNS-directed consolidation followed by autologous hematopoietic stem cell transplantation consolidation if eligible. The primary endpoint is event-free survival within 24 months after randomization. Secondary endpoints include progression-free survival, overall survival, overall response rate, complete remission rate, strict complete remission rate, autologous hematopoietic stem cell transplantation completion rate, cumulative incidence of relapse, grade 3 or higher adverse events, treatment discontinuation, treatment-related mortality, and plasma EBV-DNA clearance dynamics.

This phase II trial compares standard consolidation with daratumumab, carfilzomib, lenalidomide, and dexamethasone to consolidation with teclistamab following standard induction therapy and autologous hematopoietic stem cell transplant for improving overall survival of patients with plasma cell leukemia. Consolidation therapy is treatment given after initial therapy to kill any cancer cells that may remain in the body. Daratumumab is in a class of medications called monoclonal antibodies. It binds to a protein called CD38, which is found on some types of immune cells and cancer cells, including myeloma cells. Daratumumab may block CD38 and help the immune system kill cancer cells. Carfilzomib inhibits protein complexes called proteasomes, which inhibits cancer cell growth and leads to cancer cell death. Lenalidomide may help kill cancer cells and prevents the growth of blood vessels that cancer cells need to survive. Dexamethasone is in a class of medications called corticosteroids. It is used to reduce inflammation and lower the body's immune response to help lessen the side effects of chemotherapy drugs. Teclistamab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. A monoclonal antibody is a type of protein that can bind to certain targets in the body, such as molecules that cause the body to make an immune response (antigens). Giving teclistamab as consolidation therapy after induction and autologous hematopoietic stem cell transplant may improve survival outcomes in patients with plasma cell leukemia, compared to standard consolidation with daratumumab, carfilzomib, lenalidomide, and dexamethasone.

This phase III trial compares the effect of high dose chemotherapy and the patients' own (autologous) stem cells to observation only in patients with peripheral T-cell lymphoma who achieved a complete response after initial chemotherapy. Usual treatment after a complete response may include observation or high dose chemotherapy followed by an autologous stem cell transplant, however, it is not known if a transplant if beneficial. Giving chemotherapy before a stem cell transplant helps kill cancer cells in the body and helps make room in the patient's bone marrow for new blood-forming cells (stem cells) to grow. Stem cells removed prior to treatment are then returned to the patient to replace the blood forming cells that were destroyed by the chemotherapy. Giving high dose chemotherapy followed by an autologous stem cell transplant may be more effective compared to observation only in treating patients with peripheral T-cell lymphoma who have achieved a complete response after initial chemotherapy.

This phase II trial tests how well epcoritamab in combination with standard of care (SOC) platinum-based chemotherapy (rituximab, ifosfamide, carboplatin, etoposide \[RICE\], rituximab, cytarabine, dexamethasone, oxaliplatin or carboplatin RDHAP/X\] or gemcitabine and oxaliplatin \[Gem/Ox\]) and autologous hematopoietic cell transplant (HCT) works in treating patients with large B-cell lymphoma (LBCL) that has come back after a period of improvement (relapsed) or that has not responded to previous treatment (refractory). Epcoritamab, a type of bispecific T-cell engager, binds to a protein called CD3, which is found on T cells (a type of white blood cell). It also binds to a protein called CD20, which is found on B cells (another type of white blood cell) and some lymphoma cells. This may help the immune system kill cancer cells. Carboplatin is in a class of medications known as platinum-containing compounds. It works in a way similar to the anticancer drug cisplatin, but may be better tolerated than cisplatin. Carboplatin works by killing, stopping or slowing the growth of cancer cells. Oxaliplatin is in a class of medications called platinum-containing antineoplastic agents. It damages the cell's deoxyribonucleic acid (DNA) and may kill cancer cells. Rituximab is a monoclonal antibody. It binds to a protein called CD20, which is found on B cells and some types of cancer cells. This may help the immune system kill cancer cells. Chemotherapy drugs, such as ifosfamide, etoposide phosphate, cytarabine, and gemcitabine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Dexamethasone is in a class of medications called corticosteroids. It is used to reduce inflammation and lower the body's immune response to help lessen the side effects of chemotherapy drugs. An autologous HCT is a procedure in which blood-forming stem cells (cells from which all blood cells develop) are removed, stored, and later given back to the same person. Giving epcoritamab in combination with SOC platinum-based chemotherapy, such as RICE, RDHAP/X and Gem/Ox, and autologous HCT may kill more cancer cells in patients with relapsed or refractory LBCL.