DARMSTADT, Germany--(BUSINESS WIRE)--Merck Serono, a division of Merck KGaA, Darmstadt, Germany, leads the way in personalizing cancer care with new potential targeted treatment options that benefit an ever-widening range of patient populations. New data will be discussed at the forthcoming American Society of Clinical Oncology (ASCO) meeting in Orlando from May 29 to June 2 2009.