The 31-year-old has not played for his country since March, but he has been in fine form for his club, scoring three goals in eight Serie A appearances this season.
"I think what harmed Kaka was that he stayed without playing for too long," Parreira told UOL. "He was three seasons without playing, without chance. But we like him.
"We are following him. So he does have chances. The final list will be announced on May 7."
Kaka has scored 29 goals in 87 senior international appearances.