At the general election in 2024, Gwynne won the seat for Labour with more than half of the vote – 18,555. Reform UK came second on 5,142 votes, narrowly beating the Greens with 4,810.
Burnham announced last week that he was seeking permission to represent Labour at the by-election but was blocked a day later by the party’s ruling body.
Defending its decision, Labour’s national executive committee (NEC) said that if he won the seat, it would trigger an “unnecessary election” for the mayoralty and divert party resources from other elections.
Had he been elected as an MP, Burnham was widely seen as a potential challenger to Sir Keir Starmer’s leadership.
But speaking on BBC Radio Manchester, he said he did not try to “undermine the government” with the bid, and he simply wanted to stand to “fight the politics of Reform” and “defend Greater Manchester from being picked apart”.
The 56-year-old said he felt he had been “uniquely positioned” to fight Reform based on his record, but he “accepted” the decision of the NEC.
“I’ll be out there campaigning for Labour to win that by-election,” he added.
The NEC’s decision to block Burnham angered some Labour MPs, with about 50 signing a letter in protest.
Stogia previously stood for Labour at the 2024 general election in the constituency of Chester South and Eddisbury, where she was defeated by the Conservatives.
A full list of candidates for Gorton and Denton can be found here and will be updated as others are declared.