EPA guidance on the early intervention in clinical high risk states of psychoses

Schmidt, Stefanie Julia; Schultze-Lutter, Frauke; Schimmelmann, Benno Karl Edgar; Maric, N.P.; Salokangas, R.K.R.; Riecher-Rössler, A.; van der Gaag, M.; Meneghelli, A.; Nordentoft, M.; Marshall, M.; Morrison, A.; Raballo, A.; Klosterkötter, J.; Ruhrmann, S. (2015). EPA guidance on the early intervention in clinical high risk states of psychoses. European psychiatry, 30(3), pp. 388-404. Elsevier Masson SAS 10.1016/j.eurpsy.2015.01.013

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This guidance paper from the European Psychiatric Association (EPA) aims to provide evidence-based recommendations on early intervention in clinical high risk (CHR) states of psychosis, assessed according to the EPA guidance on early detection. The recommendations were derived from a meta-analysis of current empirical evidence on the efficacy of psychological and pharmacological interventions in CHR samples. Eligible studies had to investigate conversion rate and/or functioning as a treatment outcome in CHR patients defined by the ultra-high risk and/or basic symptom criteria. Besides analyses on treatment effects on conversion rate and functional outcome, age and type of intervention were examined as potential moderators. Based on data from 15 studies (n = 1394), early intervention generally produced significantly reduced conversion rates at 6- to 48-month follow-up compared to control conditions. However, early intervention failed to achieve significantly greater functional provements because both early intervention and control conditions produced similar positive effects. With regard to the type of intervention, both psychological and pharmacological interventions produced significant effects on conversion rates, but not on functional outcome relative to the control conditions. Early intervention in youth samples was generally less effective than in predominantly adult samples. Seven evidence-based recommendations for early intervention in CHR samples could have been formulated, although more studies are needed to investigate the specificity of treatment effects and potential age effects in order to tailor interventions to the individual treatment needs and risk Status.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > University Psychiatric Services > University Hospital of Child and Adolescent Psychiatry and Psychotherapy

UniBE Contributor:

Schmidt, Stefanie Julia; Schultze-Lutter, Frauke and Schimmelmann, Benno Karl Edgar


600 Technology > 610 Medicine & health




Elsevier Masson SAS




Nicole Jansen

Date Deposited:

18 May 2015 14:36

Last Modified:

11 Nov 2015 11:38

Publisher DOI:


PubMed ID:






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