Prodromal symptoms and early intervention to prevent a relapse

INTERVENTION: The Symptom Management Module (SMM), one of the independent living skills modules developed by the Los Angeles rehabilitation research group, is a psychosocial intervention to improve the capability of patients with schizophrenia to detect early warning signs (EWS) of a psychosis and to teach the patients to manage them. Two treatment conditions (symptom management module [N = 46] versus self monitoring [N = 52]) and a comparison group (treatment as usual [N = 49]) in patients with schizophrenia or related psychotic disorders. CONDITION: Schizophrenia, Schizophreniform disorder ; Mental and Behavioural Disorders ; Schizophrenia PRIMARY OUTCOME: Occurrence of a psychotic relapse: a worsening of at least two points on the CGI as assessed by psychiatrist and verified by researcher by a PANSS‐interview within a week. SECONDARY OUTCOME: 1. Hospitalisation; 2. Psychopathology INCLUSION CRITERIA: 1. ICD‐10 diagnosis of schizophrenia (F20) or schizoaffective disorder (F25) 2. A remitted state established by no more than one score of 4 on the positive scale of the PANSS 3. Necessary skills in Dutch language to undergo a training in Dutch