Early detection and intervention evaluation for people at high-risk of psychosis-2 (EDIE-2): trial rationale, design and baseline characteristics
Article first published online: 27 JAN 2011
© 2011 Blackwell Publishing Asia Pty Ltd
Early Intervention in Psychiatry
Volume 5, Issue 1, pages 24–32, February 2011
How to Cite
Morrison, A. P., Stewart, S. L.K., French, P., Bentall, R. P., Birchwood, M., Byrne, R., Davies, L. M., Fowler, D., Gumley, A. I., Jones, P. B., Lewis, S. W., Murray, G. K., Patterson, P. and Dunn, G. (2011), Early detection and intervention evaluation for people at high-risk of psychosis-2 (EDIE-2): trial rationale, design and baseline characteristics. Early Intervention in Psychiatry, 5: 24–32. doi: 10.1111/j.1751-7893.2010.00254.x
- Issue published online: 27 JAN 2011
- Article first published online: 27 JAN 2011
- Accepted 22 September 2010
- at-risk mental state;
- cognitive therapy;
- early intervention;
Aims: Much research has begun to focus on the identification of people who are at high risk of developing psychosis, and clinical services have been initiated for this population. However, only a small number of studies have reported on the efficacy of interventions for preventing or delaying the onset of psychosis. The results of prior work suggest that cognitive therapy (CT) may be an effective, well-tolerated treatment. We report on the rationale and design for a large-scale, multi-site randomized, controlled trial of CT for people who are assessed to be at high risk of psychosis because of either state or state-plus-trait risk factors.
Methods: The study employs a single-blind design in which all participants receive frequent mental-state monitoring, which will efficiently detect transition to psychosis, and half are randomized to weekly sessions of CT for up to 6 months. Participants will be followed-up for a minimum of 12 months and to a maximum of 2 years.
Results: We report the characteristics of the final sample at baseline (n = 288).
Conclusions: Our study aimed to expand the currently limited evidence base for best practice in interventions for individuals at high risk of psychosis.