MELBOURNE, Australia & MENLO PARK, Calif.--(BUSINESS WIRE)--ChemGenex Pharmaceuticals Limited (ASX:CXS and NASDAQ:CXSP) announced today the publication of a report in the prestigious Nature publication Leukemia confirming the positive clinical activity of the company’s lead compound, Ceflatonin® against Gleevec®-resistant, chronic myeloid leukemia (CML) associated with the T315I Bcr-Abl mutation.