Dugan and his manager Paul Sutton have been asked to attend the meeting but the duo have not informed the club as to whether they will be there.
"We haven't heard from them, there has been no indication they will be coming," a Raiders official told AAP.
If Dugan does not attend the Raiders would have little alternative but to terminate his contract.
The matter was brought to a head after Dugan was caught drinking with teammate Blake Ferguson after posting pictures of themselves on a social networking site.
According to the Raiders code of conduct injured players are prohibited from drinking. Dugan suffered rib cartilage damage in a lacklustre effort against the Panthers in what may be his final game for the club.
Both Dugan and Ferguson have been omitted from the Canberra side for Sunday's match against the Gold Coast.
Dugan took to Twitter on Tuesday in an attempt to explain himself.
"This goes beyond the drinking while injured. Yes I've broken team rules but for me it goes deeper and I plan on sorting it out," he wrote.
"I apologise to my team mates and the fans but this is personal and needs to be sorted out as soon as possible for me to move forward."
St George Illawarra and French rugby union have been identified as possible landing places for Dugan if he is let go by the Raiders.
- AAP
