An expert review of clozapine in Eastern European countries: Use, regulations and pharmacovigilance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023752%3A_____%2F24%3A43921233" target="_blank" >RIV/00023752:_____/24:43921233 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11120/24:43926068

Výsledek na webu

<a href="https://linkinghub.elsevier.com/retrieve/pii/S0920996423003122" target="_blank" >https://linkinghub.elsevier.com/retrieve/pii/S0920996423003122</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.schres.2023.09.002" target="_blank" >10.1016/j.schres.2023.09.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An expert review of clozapine in Eastern European countries: Use, regulations and pharmacovigilance

Popis výsledku v původním jazyce

Objectives: To compare the prevalence, regulations, and pharmacovigilance practices of clozapine use in Eastern European countries (except Russia). Methods: Questionnaires and data from administrative databases (2016 and 2021), package inserts and national guidelines were collected from 21 co-authors from 21 countries. Reports of clozapine adverse drug reactions (ADRs) sent to the global pharmacovigilance database (VigiBase™) were analyzed from introduction to December 31, 2022. Results: Clozapine prescription among antipsychotics in 2021 varied six-fold across countries, from 2.8 % in the Czech Republic to 15.8 % in Montenegro. The utilization of antipsychotics in both 2016 and 2021 was highest in Croatia, and lowest in Serbia in 2016, and Montenegro in 2021, which had half the defined daily dose (DDD)/1000/day compared to the Croatian data. From 2016 to 2021, the prevalence of antipsychotic use increased in almost all countries; the proportion of clozapine use mainly remained unchanged. Differences were detected in hematological monitoring requirements and clozapine approved indications. Only a few national schizophrenia guidelines mention clozapine-induced myocarditis or individual titration schemes. The VigiBase search indicated major underreporting regarding clozapine and its fatal outcomes. By comparison, the United Kingdom had less than half the population of these Eastern European countries but reported to VigiBase more clozapine ADRs by 89-fold and clozapine fatal outcomes by almost 300-fold. Conclusion: Clozapine is under-utilized in Eastern European countries. Introducing individualized clozapine treatment schedules may help to maximize clozapine benefits and safety. Major improvement is needed in reporting clozapine ADRs and fatal outcomes in Eastern European countries.

Název v anglickém jazyce

An expert review of clozapine in Eastern European countries: Use, regulations and pharmacovigilance

Popis výsledku anglicky

Objectives: To compare the prevalence, regulations, and pharmacovigilance practices of clozapine use in Eastern European countries (except Russia). Methods: Questionnaires and data from administrative databases (2016 and 2021), package inserts and national guidelines were collected from 21 co-authors from 21 countries. Reports of clozapine adverse drug reactions (ADRs) sent to the global pharmacovigilance database (VigiBase™) were analyzed from introduction to December 31, 2022. Results: Clozapine prescription among antipsychotics in 2021 varied six-fold across countries, from 2.8 % in the Czech Republic to 15.8 % in Montenegro. The utilization of antipsychotics in both 2016 and 2021 was highest in Croatia, and lowest in Serbia in 2016, and Montenegro in 2021, which had half the defined daily dose (DDD)/1000/day compared to the Croatian data. From 2016 to 2021, the prevalence of antipsychotic use increased in almost all countries; the proportion of clozapine use mainly remained unchanged. Differences were detected in hematological monitoring requirements and clozapine approved indications. Only a few national schizophrenia guidelines mention clozapine-induced myocarditis or individual titration schemes. The VigiBase search indicated major underreporting regarding clozapine and its fatal outcomes. By comparison, the United Kingdom had less than half the population of these Eastern European countries but reported to VigiBase more clozapine ADRs by 89-fold and clozapine fatal outcomes by almost 300-fold. Conclusion: Clozapine is under-utilized in Eastern European countries. Introducing individualized clozapine treatment schedules may help to maximize clozapine benefits and safety. Major improvement is needed in reporting clozapine ADRs and fatal outcomes in Eastern European countries.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30215 - Psychiatry

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Schizophrenia Research

ISSN

0920-9964

e-ISSN

1573-2509

Svazek periodika

268

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

53-59

Kód UT WoS článku

001253316500001

EID výsledku v databázi Scopus

2-s2.0-85173064116