The 25-year-old has made 12 appearances for the Black Cats since moving to the Stadium of Light from Brighton & Hove Albion in January.
Bridcutt has said that he wants to make a strong start to next season under head coach Gus Poyet.
"Without a doubt, I still need to show my best form here," he told the Sunderland Echo. "The season was hard for me. Even going back to when I was at Brighton, it was difficult because I was coming back from injury.
"Then it was stop-start when I got here with the cup runs, not being in the team and a lot happened off the pitch with my family. It's tested me and I've come through it. Now I'm just looking forward to next season.
"With the games I've played, I've done well, but I know I can do better. With a good pre-season, with all the lads and Gus, I want to be flying next season."
Bridcutt made 151 appearances for Brighton during four years with the club.