PDCD1 and classic Hodgkin lymphoma: Taken together, the data indicate that beyond the established role of brentuximab vedotin, CD30-directed CAR-T cells and bispecific antibodies demonstrate high activity in refractory cHL, especially when used with fludarabine-containing lymphodepletion, combined with programmed cell death 1 (PD-1) receptor blockade as a strategy to eradicate minimal residual disease.