Method and kit for in vitro prognosis or prediction of response to treatment with antipsychotic agents from patients who have suffered a first psychotic episode

An in vitro method and kit for prognosis or prediction of response to treatment with antipsychotic agents from patients who have suffered a first psychotic episode. # The present invention relates to an in vitro method of prognosis or prediction of response to treatment antipsychotic drugs by subjects who have suffered a first psychotic episode (FEP), and in particular to the use of the value of expression in a biological sample isolated from said subject, the ratio formed by two isoforms active -isoforma and truncada- isoform receptor (TrkB) neuronal growth factor BDNF, trkB-called TrkB and FL-T, respectively. The present invention further describes kits and uses thereof for carrying out the method of the invention.