Two weeks ahead of its Jan. 6, 2023, PDUFA date, the U.S. FDA has approved the bispecific Lunsumio (mosunetuzumab) to treat adults with relapsed or refractory follicular lymphoma (FL) after two or more lines of systemic therapy. It’s the first bispecific antibody approved for treating any type of non-Hodgkin lymphoma (NHL). FL is the most common slow-growing form of NHL.