Historically, there have been many attempts to develop interventions to support the carers of people with dementia. To date the evidence of effectiveness has been limited. However, the success of psychosocial interventions for carers of people with schizophrenia has suggested the possibility of utilizing this approach. A systematic review was undertaken to assess the evidence of effectiveness for psychosocial interventions with carers of people with dementia. Thirty controlled trials that evaluated a psychosocial approach were identified.