Lurasidone Augmentation of Clozapine in Refractory Schizophrenia: A Case Series

J Clin Psychopharmacol. 2023 Mar-Apr;43(2):157-160. doi: 10.1097/JCP.0000000000001662.

Abstract

Purpose: Clozapine represents the criterion standard therapy for patients with treatment-resistant schizophrenia. Unfortunately, a significant percentage of such patients are also partial responders to clozapine. Consequently, several augmentation strategies have been proposed with various and sometimes controversial efficacy. Among these add-on treatments, lurasidone has been recently introduced and could represent a potential option, especially for the additional positive effect on cognitive symptoms.

Methods: This case series aims to determine possible advantages of lurasidone augmentation in four patients treated with clozapine, who were diagnosed with treatment-resistant schizophrenia. Positive and Negative Syndrome Scales were used to evaluate psychopathology, the Udvalg for Kliniske Undersøgelser scale for tolerability and safety.

Finding: All patients achieved a significant reduction of both positive and negative symptoms, with no significant adverse effects to be reported.

Implications: Our observation suggests that lurasidone can lead to clinically significant improvements in psychopathology with a good tolerability profile when added to clozapine.

MeSH terms

  • Antipsychotic Agents* / adverse effects
  • Clozapine* / adverse effects
  • Drug Therapy, Combination
  • Humans
  • Lurasidone Hydrochloride / therapeutic use
  • Schizophrenia* / drug therapy
  • Schizophrenia, Treatment-Resistant
  • Treatment Outcome

Substances

  • Clozapine
  • Antipsychotic Agents
  • Lurasidone Hydrochloride