Prot #GO44145: A Phase III, Multicenter, Randomized, Open-Label Study Comparing The Efficacy and Safety of Glofitamab (RO7082859) in Combination with Polatuzumab Vedotin Plus Rituximab, Cyclophospamide, Doxorubicin, and Prednisone (POLA-R-CHP) Versus POLA