Breyanzi is made from a patient's own T cells, which are collected and genetically reengineered to become CAR T cells that are then delivered via infusion as a one-time treatment. The treatment process includes blood collection, CAR T-cell creation, potential bridging therapy, lymphodepletion, administration, and side-effect monitoring. Breyanzi is also approved in Japan, the European Union (EU), Switzerland, the United Kingdom, and Canada for the treatment of relapsed or refractory LBCL after at least one prior line of therapy; in Japan for the treatment of patients with relapsed or refractory high-risk FL after one prior line of systemic therapy, and in patients with relapsed or refractory FL after two or more lines of systemic therapy; and in the EU for the treatment of relapsed or refractory FL after two or more lines of systemic therapy.