Campagnaro has made five appearances in the league, scoring his first try last time out in a narrow defeat to Cardiff Blues, earning his call-up from Brunel.
The French coach has set his sights on an improvement on Italy's summer tour for their three-Test series after they failed to record a victory in the quadrangular tournament in South Africa in June.
He said: "We've been following Campagnaro for two years. He's completely recovered from the injury he suffered at the Junior World Championships in 2012 in South Africa and he's getting a lot of space at Treviso. It will be interesting to test him at the highest level.
"A year ago we challenged the All Blacks for an hour and lost a close game to Australia, we had a good Six Nations but on the summer tour we regressed.
"During the same period Australia have had a strange path, they started the Rugby Championship with a few defeats but they finished with a comprehensive win over Argentina away from home. They are improving and will be tough to beat."