The 24-year-old's current deal runs out at the end of the season, meaning the Royals may need to cash in on the player in January if a new agreement cannot be reached.
But, despite Pearce making just four league appearances so far this season, McDermott hopes to see the situation resolved quickly.
|3/1||Reading are 3/1 to finish bottom of the Premier League with Bet365|
"His agent needs to contact the club and they need to get together again. I don't want this to drag on for much longer.
"It's out of my hands. It has to do with the club and the agent."