A pilot study of quetiapine treatment of aggression due to traumatic brain injury.

In a 6-week open-label, flexible dose pilot study of quetiapine for treatment of aggression secondary to traumatic brain injury (TBI), seven subjects who were at least 3-months post-injury were enrolled. The Overt Aggression Scale - Modified (OAS-M) and Clinical Global Impression (CGI) were primary outcome measures. Administration of quetiapine at doses of 25 to 300 mg daily was efficacious and well-tolerated in reducing irritability and aggression resulting from TBI, with an associated improvement in cognitive functioning.