On Wednesday, a Cairo court dismissed an appeal against the 23 September ruling that banned the Muslim Brotherhood.
A lawyer from the leftist Tagammu party filed the case banning the Muslim Brotherhood on the grounds of protecting Egyptians from “violence” carried out by members of the group.
The ruling outlawed all activities by the Islamist organisation and ordered the seizure of its assets and funds.
The dismissal of the appeal comes after Monday’s brief opening session in the trial of deposed President Mohamed Morsi.
Morsi and 14 other Muslim Brotherhood members, accused of inciting violence which led to the deaths of five protesters and wounding of almost 700 people outside the President Palace in December 2012, were ordered to remain in prison.
The former president spent Monday night in a hospital room after complaining of high blood pressure and high blood sugar, according to officials.