A-dmDT390-bisFv(UCHT1) (Resimmune™), an anti-T cell immunotoxin is currently being studied as a treatment for cutaneous T cell lymphoma and other CD3+ malignant diseases (FDA IND Number: 100712, Scott and White Protocol 071163). During the course of this study, data accumulated that Resimmune could be acting as an immunomodulator. This was based on the observation that four out of six partial responses converted to complete responses at times ranging between 6 and 24 months following the completion of the 4-day treatment protocol and no other treatment took place.