From the 25th till the 29th of September, Vienna was host for the 18th ECCO – 40th ESMO European Cancer Congress. Immunotherapy was a very important theme for this year’s venue which hosted 18.500 registered attendees. This report will highlight 4 key studies concerning renal cell carcinoma and metastatic prostate cancer presented during the presidential sessions of the meeting.

(BELG J MED ONCOL 2015;9:244–49)