The Nerazzurri have been struggling in the opening weeks of the season, and were beaten 2-0 by Siena at San Siro on Sunday.
Nevertheless, Cambiasso has stressed that Stramaccioni is not to blame for their disappointing results so far.
"We’re united. We’re behind this coach who’s trying to do the best he can, and so are we," Cambiasso was quoted as saying on the club's official website.
"The season is long and we hope that our luck will turn. We’re sorry to have lost at home, because we can’t manage to satisfy our fans, but we’re sure the wins will come.
"We believe in what we’re doing. We have a capable coaching staff with clear ideas and we have to stay behind them, trying to give more than 100 per cent."
Inter currently sit sixth in Serie A with six points from four matches.