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Improvement of conventional perception in stable patients with schizophrenia by add-on treatment with ipidacrine

Published online by Cambridge University Press:  13 August 2021

M. Morozova*
Affiliation:
Laboratory Of Psychopharmacology, FSBSI Mental Health Research Center, Moscow, Russian Federation
S. Potanin
Affiliation:
Laboratory Of Psychopharmacology, FSBSI Mental Health Research Center, Moscow, Russian Federation
G. Rupchev
Affiliation:
Laboratory Of Psychopharmacology, FSBSI Mental Health Research Center, Moscow, Russian Federation
D. Burminskiy
Affiliation:
Laboratory Of Psychopharmacology, FSBSI Mental Health Research Center, Moscow, Russian Federation
T. Lepilkina
Affiliation:
Laboratory Of Psychopharmacology, FSBSI Mental Health Research Center, Moscow, Russian Federation
A. Beniashvili
Affiliation:
Laboratory Of Psychopharmacology, FSBSI Mental Health Research Center, Moscow, Russian Federation
*
*Corresponding author.

Abstract

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Introduction

Impairment of conventional perception is one of the key dysfunction in patients with schizophrenia even in absence of psychotic symptoms.

Objectives

Possibility of improvement of conventional perception by add-on treatment with ipidacrine in patients with schizophrenia in long-term remission.

Methods

26 (13 females) patients, mean age 40.4 (SD 11.7) with episodic schizophrenia in remission more than one year, receiving stable antipsychotic therapy were included into the open label study. As add-on treatment ipidacrine was administered once per day in dosage 20 mg for two months. Positive and Negative Symptoms Scale (PANSS) was used to assess clinical symptoms and projective psychological method (Rorschach Test) was used to assess conventional perception.

Results

The study showed that ipidacrine in a low dosage, added to standard antipsychotic treatment, was effective in relation to negative symptoms (PANSS negative subscale score before 22,4 (SD4,7) and after beginning of the study 19,7 (4,5), p=0, 001). Of all the indicators of the Rorschach test, there was significant improvement in the index X+%, which is responsible for the degree of conventionality in reality recognition. The decrease in conventionality was associated with both high individualism and perceptual disorders. The value of of X+ % did not reach the standard one (70%) to the end of the study, but the improvement showed the switching from severe (52,4 (SD 12,2) to moderate (60,6 (SD10,4) impairment level (p=0,039).

Conclusions

Ipidacrine in a low dosage as add-on treatment has positive effect on conventional perception of stable patients with schizophrenia even in short-term trial.

Type
Abstract
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of the European Psychiatric Association
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