Results have seen a significant increase in quality at Sandhill View Academy, according to school bosses.
Richard Carr, head of the school, said that they had seen a 50% pass rate in Maths and English, a figure which was at 28% just three years ago.
"It's a significant increase," said Mr Carr.
"We've also seen some very good results from some of our more disadvantaged students."
Dr Phil Ingram, who is CEO of the multi-academy trust, added: "Today reflects a whole new atmosphere about the school.
"When I first stepped into this school three years ago, it was in trouble, but this is totally different."
Ellie Young, 16, managed to get two 6 grades, one 7, two As and two Bs and will be going on to study Physics, Maths and French at Southmoor, which has a link-up with Sandhill.
Her mum Emma, a governor at Sandhill, said: "When Ellie first started the school was in special measures but what's happened since is just phenomenal."
Head boy Lewis Charlton, 16, said he was "speechless" after getting A grades in two subjects he is taking at A-Level.
"I've managed to get a scholarship with Sunderland AFC so I'll be studying there," said Lewis.
"I'm just really pleased."