Duration of disease response by PET-CT or CT. The combined response for CR/PR can be contributed by either PET-CT or CT, whichever is available. If both PET-CT and CT results were available and discordant, PET-CT results were used. *Patient continued on study therapy after PD. †Five transformed DLBCL (all CR); 1 composite lymphoma with DLBCL and FL portions (response not available); 1 Waldenström macroglobulinemia (PR); 5 marginal zone lymphoma (3 CR, response not available in 2 patients). SD, stable disease.