The Psychiatry and Mental Health research group at the Germans Trias i Pujol Research Institute (IGTP), together with the ETEP (Study and Treatment of Psychotic Episodes) group at Hospital del Mar, has published a study in the Spanish Journal of Psychiatry and Mental Health that analyzes the use of clozapine in patients with treatment-resistant schizophrenia in the first two years after the first psychotic episode (FEP).