General aviation pilot reported a loss of aircraft control due to a brake malfunction after ATC issued a takeoff clearance while lined up on the runway. The pilot shut down the engine and stopped the aircraft with no damage or injury.

Narrative

The problem occurred at ZZZ rwy XX at approximately XA:40. I was in Aircraft X; cleared for take-off. As I lined up for the runway; the right brake gave out and I started veering off to the left towards the side of the runway. Getting closer to the runway lights; I quickly shut off the engine. An instructor who was monitoring on the right seat; got down and helped stop the aircraft from departing the runway and hitting the lights. I immediately reported the issue to ATC. They closed the runway and the only aircraft on final was given a go around command. We managed to straighten out the aircraft and powered it up. With the help of another instructor and a passenger; we managed to taxi the aircraft out of the runway; through the taxi way into the ramp for inspection.No incident; near miss or damage occurred from the issue. The factor that might've caused the right brake to go out is overheating. On a previous landing; we had to use plenty of brake to slow down. No leaks under the brakes were noted and after 10-20 minutes; we got brake effectiveness again.