MELBOURNE, Australia & MENLO PARK, Calif.--(BUSINESS WIRE)--ChemGenex Pharmaceuticals (ASX: CXS, NASDAQ: CXSP) is pleased to announce the immediate appointment of Dr George Morstyn, MB BS PhD FRACP, former Senior Vice President and Head of Development at Amgen, to its board of directors. Dr Morstyn is a highly experienced biotechnology executive with an outstanding background in pre-clinical and clinical development and regulatory affairs.