The Argentine centre-back reportedly handed in a transfer request in January as he looked to force through a move to hometown club San Lorenzo, which Newcastle rejected.
Coloccini hasn’t features for the Magpies since February, out of action with a back injury, but some supporters have questioned his desire to return to full fitness and don the black and white jersey again.
But Newcastle boss Pardew furiously quashed those accusations, stating that the 31-year-old is fighting to get back in the side and could feature in the club’s remaining fixtures.
“He’s one hundred per cent mentally ready,” Pardew told reporters. “There’s no doubt in my mind about that.
“I think some of the stuff on the internet and in social media is absolute rubbish. It’s so far off the truth.
“Because of the result we had against Sunderland, in particular, it all seems to have gone into a spiral of conspiracies.
“It is unfair if people are questioning his desire to get back fit. It’s very unfair, in fact, to him as a person. A lot of his problems were around his personal situation and I don’t want to go into any details about that.
“But I do feel that his determination to come back from this injury could not be any greater.
“He’s probably in the best condition he’s been in for a long while. I don’t think there’s any substance in those kind of suggestions at all.”