DESCRIPTION (provided by applicant): Well over a decade ago the first diphtheria toxin-based fusion protein toxin, DAB389IL-2 (Ontak(R)) was in development as the first of a new class of receptor specific therapeutic agent. This fusion protein gained FDA approval five years ago for the treatment of… More

DESCRIPTION (provided by applicant): Sweeney et al. (1998) originally reported the construction of DAB389IL-7, a fusion protein based on diphtheria toxin (DT), and proposed that this fusion protein could be employed as a therapeutic agent for hematological malignancies, including acute lymphoblastic… More

DESCRIPTION (provided by applicant): A number of protein fusion toxins, composed of the diphtheria toxin (DT) toxophore and a targeting ligand, have been assembled and tested in Phase I clinical trials for the treatment of leukemias. To date, the only FDA approved protein fusion toxin is ONTAK.… More

DESCRIPTION (provided by applicant): The project seeks to further the development of a series of diphtheria toxin mutants which, when employed in the construction of protein fusion toxins, display reduced induction of leakage through vascular endothelial c ell monolayers. The goals of this Phase I… More