The Argentine, who is out of contract at the end of the season, scored a late equaliser for Napoli in the 1-1 draw with Lazio on Saturday evening.
However, when asked about a potential move to Inter after the game, Campagnaro did not deny the link and only promised to give his all for Napoli as long as he at the club.
"Inter? As long as I am here, I will always give my all, regardless of circumstances," the 32-year-old told Sky Italia.
"I'll still give 100%, that is a guarantee."
Campagnaro has been at Napoli since 2009.