Impact Of Early Use Of Long Acting Paliperidone (1 And 3 Monthly) In A First-Episode Psychosis Sample

Introduction Relapse prevention is a key objetive for patients with a First Episode Psychosis (FEP) and the low adherence to antipsychotic (AP) treatment is the main reason for relapse after a FEP. Objectives There are no clear recommendations about the early use of long-acting injectables (LAIs) in FEP. We review the impact on hospitalization rates of the early use (earlier than 1 year after the inclusion in our Early Intervention Service “Lehenak”) of LAI paliperidone in a FEP sample. Methods We evaluated in a naturalistic study a sample (N=384) of patients with a FEP. We carried out a mirror-design study to compare the numer of hospitalizations before and after the introduction of LAI paliperidone (1 and 3 monthly) in early users (<1 year) vs late users (>1 year). Results A total of 384 FEP patients with LAI paliperidone were assessed. Early Paliperidone LAI (n=201) Late Paliperidone LAI (n=173) Within groups comparisons t (p) Hospitalizations pre-LAI mirror period (media, standard deviation) 1.76 (1.97) 2.22 (2.60) 1,87 (0.06) Days in hospital pre-LAI mirror period 21.42 (28.28) 28.02 (38.27) 1.87 (0.06) Hospitalizations post-LAI mirror period 0.68 (1.61) 0.80 (1.74) 0.73 (0.46) Days in hospital post-LAI mirror period 15.17 (40.58) 18.78 (45.24) 0.81 (0.42) Conclusions There was no difference between the early and late introduction of LAI Paliperidone in the number of hospitalizations after treatament. There was a trend to present more previous hospitalizations and days in hospital in late users. This could support an earlier use of paliperidone LAI to prevent an excess of hospitalizations due to late introduction. Disclosure The presenting author has received honouraria for lectures or advisory boards from Janssen, Otsuka, Lundbeck and Angelini in the last five years.