sentences:  The competition has been contested annually since 1967, though it was not held from 1974 to 1980, and 1983 to 1994, and again in 1996, 1999 and 2002.The first club to win the competition was CUS Roma.From 2011, it involves only teams from the Top12 who don't participate to the European Rugby Challenge Cup Qualifying Competition, now Continental Shield.