What is the best lymphoma treatment after CAR T therapy fails?

For 30% to 40% of lymphoma patients who receive CAR T therapy, the treatment is a godsend. Typically given to lymphoma patients for whom other treatments have proven ineffective, CAR T therapy involves removing immune cells from the body via a blood draw, reengineering them to become better cancer fighters, then reintroducing them to the bloodstream, where they seek out and destroy cancer cells.