MELBOURNE, Australia, & MENLO PARK, Calif.--(BUSINESS WIRE)--ChemGenex Pharmaceuticals Limited (ASX:CXS) announced today updated clinical data showing that Omapro™ (omacetaxine mepesuccinate) produced durable hematologic and cytogenetic responses in chronic myeloid leukemia (CML) patients who have failed treatment with imatinib and who have developed the Bcr-Abl T315I mutation. New data was presented at a pre-conference press showcase at the 51st Annual American Society of Hematology Annual Meeting in New Orleans, Louisiana.