MPs were set to debate a private members’ bill on Friday of this week that would legalise assisted dying.
The bill, introduced by Labour MP Rob Marris, is similar to Lord Falconer’s bill that ran out of time before the general election.
It allows people diagnosed as terminally ill with no hope of recovery to choose to end their own life with medical assistance. They must also be ruled medically capable of making the decision.
The religious establishment has led the opposition to the bill. Every MP was sent a letter signed by a wide coalition of religious leaders calling on them to vote against it.
Campaigning by terminally ill people and their families helped get it on the agenda. But some disability activists fear it would lead to people being pressured to kill themselves.