It was felt Brennan played an integral role in the scandal involving Harlequins player Tom Williams during their Heineken Cup quarter-final against Leinster in April 2009.
Brennan, who is currently serving a two-year ban from rugby for the offence, was part of a plot by former coach Dean Richards to organise a blood replacement to bring specialist kicker Nick Evans back to the field in an attempt to win a game, though they ultimately lost 5-6.
The two-day hearing in London starts on 13 September Ã¢â‚¬â€ three weeks after Dr Wendy Chapman faces a General Medical Council hearing regarding the same incident.
Chapman was HarlequinÃ¢â‚¬â„¢s matchday doctor at the game and is accused of deliberately cutting WilliamsÃ¢â‚¬â„¢ lip to cover up the use of a blood capsule, one that was allegedly bought by Brennan.
Should either be found guilty they could face being struck off from their respective professions.
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BIOGRAPHY: Marcus Rashford