Family Talk versus usual services in improving child and family psychosocial functioning in families with parental mental illness (PRIMERA—Promoting Research and Innovation in Mental hEalth seRvices for fAmilies and children): study protocol for a randomised controlled trial

Background: Parental mental illness is common and can lead to dependent children incurring a high risk of developing mental disorders, physical illness, and impaired educational and occupational outcomes. Family Talk is one of the better known interventions designed to prevent the intergenerational transmission of mental illness. However, its evidence base is small, with few robust independent randomised controlled trials, and no associated process or cost evaluations. The PRIMERA (Promoting Research and Innovation in Mental hEalth seRvices for fAmilies and children) research programme involves a mixed method evaluation of Family Talk which is being delivered in mental health settings in Ireland to improve child and family psychosocial functioning in families with parental mental illness