In 2006, when the Atlantis expedition managed to humanize a Hive Ship filled with Wraith before they could reach Earth, they sent the 200-odd Wraith that survived being fed on by each other to this planet. There was no Stargate and the planet is uninhabited so the Wraith had no interest there. Dr. Carson Beckett and a medical team remained and taught them how to administer the Iratus bug retrovirus until a permanent solution could be discovered.