Polatuzumab Vedotin and Combination Chemotherapy for the Treatment of Previously Untreated Lymphoma

This phase II trial studies how well polatuzumab vedotin and combination chemotherapy work in treating patients with previously untreated double, triple hit lymphoma, Double Expressor Lymphoma or High-Grade B Cell Lymphoma. Polatuzumab vedotin is a monoclonal antibody that works by binding with cancer cells and releasing another chemotherapy drug, called monomethyl auristatin E, into the cell causing the cancer cells to die or stop growing. Chemotherapy drugs, such as rituximab, cyclophosphamide, doxorubicin, and prednisone, 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. Giving polatuzumab vedotin with combination chemotherapy may work better in treating patients with double or triple hit lymphoma compared to combination chemotherapy alone.