From May 31st till June 4th, Chicago again hosted the annual meeting of the American Society of Clinical Oncology (ASCO). The ASCO Annual Meeting brought together over 25,000 oncology professionals from a broad range of specialties. This summary does not aim at giving a complete overview of the meeting but will briefly touch on twenty key studies presented at the meeting. All abstracts cited in this summary can be consulted in more detail at the ASCO website (

(BELG J MED ONCOL 2013;7(4):127–32)