WILMINGTON, Mass.--(BUSINESS WIRE)--Sirtex, a leading developer of targeted and innovative cancer therapies, will exhibit its SIR-Spheres microspheres technology at the 43rd American Society of Clinical Oncology (ASCO) Annual Meeting. The meeting, to be held June 1-5 at the McCormick Place in Chicago, Ill., is considered the premier educational and scientific event in the oncology community. Sirtex manufactures SIR-Spheres microspheres, the only FDA-approved microsphere therapy for advanced colorectal cancer that has spread to the liver.1