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An original pharmacoepidemiological-pharmacodynamic method: application to antipsychotic-induced movement disorders.


ABSTRACT:

Aims

Pharmacovigilance databases are usually used to detect new potential signals that are relevant for drug safety. They are seldom used for explanatory purposes, e.g. to understand the mechanisms of adverse drug reactions (ADRs). The aim of the present study was to combine pharmacovigilance and pharmacodynamic data to investigate the association between dopamine D2, serotonin 5HT2A, and muscarinic M1 receptor occupancy and the risks of antipsychotic drug (AP)-induced movement disorders.

Methods

First, we performed a case-noncase analysis using spontaneous reports from the World Health Organization (WHO) Global Individual Case Safety Report (ICSR) database, VigiBase®. We thus measured the risk of reporting movement disorders compared with all other ADRs [expressed as a reporting odds ratio (ROR)] for APs. Second, we performed a linear regression analysis to explore the association between the estimated risk of reporting for individual drugs and their receptor occupancy properties, for D2, 5HT2A and M1 receptors.

Results

Compared with second-generation APs, first-generation APs were found to be significantly more associated with the reporting of movement disorders in general but also with dystonia, Parkinsonism, akathisia and tardive dyskinesia, irrespective of gender. A significant inverse correlation was found between the ROR for movement disorders and the receptor occupancy of 5HT2A [P < 0.001; R2  = 0.51; slope = -0.014; 95% confidence interval (CI) (-0.029, 0.001)], M1 (P < 0.001; R2  = 0.56; slope = -0.014; 95% CI (-0.028, 0.001) but not D2 dopamine (P = 0.54; R2  = 0.02; slope = -0.003; 95% CI (-0.007, 0.001) receptors.

Conclusions

Using the example of AP-induced movement disorders, the present study underlines the value of the pharmacoepidemiological-pharmacodynamic method to explore ADR mechanisms in humans and real-life settings.

SUBMITTER: Nguyen TT 

PROVIDER: S-EPMC5306476 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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An original pharmacoepidemiological-pharmacodynamic method: application to antipsychotic-induced movement disorders.

Nguyen Thi Thu Ha TT   Pariente Antoine A   Montastruc Jean-Louis JL   Lapeyre-Mestre Maryse M   Rousseau Vanessa V   Rascol Olivier O   Bégaud Bernard B   Montastruc François F  

British journal of clinical pharmacology 20161106 3


<h4>Aims</h4>Pharmacovigilance databases are usually used to detect new potential signals that are relevant for drug safety. They are seldom used for explanatory purposes, e.g. to understand the mechanisms of adverse drug reactions (ADRs). The aim of the present study was to combine pharmacovigilance and pharmacodynamic data to investigate the association between dopamine D2, serotonin 5HT2A, and muscarinic M1 receptor occupancy and the risks of antipsychotic drug (AP)-induced movement disorders  ...[more]

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