Abstract
Introduction
Psychotropic drugs such as anxiolytics, antidepressants and antipsychotics may have anticholinergic properties that could directly affect patients’ cognition.
Objectives
Our objective was to assess the relationship between exposure to anticholinergic-positive (AC+) psychotropic drugs and cognitive impairment compared with psychotropic drugs without anticholinergic activity (AC−).
Methods
This analysis included participants (aged 45–70 years) enrolled between January 2012 and October 2017 in the CONSTANCES cohort treated with psychotropic drugs (antidepressants n = 2602, anxiolytics n = 1195, antipsychotics n = 197) in the 3 years preceding cognitive assessment. Within each drug class, the Anticholinergic Cognitive Burden scale was used to classify drugs as either AC+ or AC−. Cognitive impairment was defined as a score below − 1 standard deviation from the standardized mean of the neuropsychological score. We used multiple logistic regression models and matching on propensity score to estimate the relationship between anticholinergic activity and cognitive impairment.
Results
Our analyses did not show any increased risk of cognitive impairment for AC+ antidepressants and anxiolytics, with the exception of a slight increase for AC+ antidepressants in episodic memory (odds ratio [OR] 1.19; 95% confidence interval [CI] 1.05–1.36). Conversely, we found a more marked increase in risk with AC+ antipsychotics on executive function (Trail Making Test-A [TMT-A], OR 4.49 [95% CI 2.59–7.97] and TMT-B, OR 3.62 [95% CI 2.25–5.89]).
Conclusion
Our results suggest there is no clinically relevant association between the anticholinergic activity of antidepressant and anxiolytic drugs and cognitive impairment in middle-aged adults. An association could exist between AC+ antipsychotics and executive function.
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Acknowledgements
The authors thank the National Health Insurance Fund (‘Caisse Nationale d’Assurance Maladie’ [CNAM] and its health screening centres (‘Centres d’examens de santé’), where a large part of the data was collected, and ClinSearch, which was in charge of the data quality control.
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Funding
The CONSTANCES Cohort Study is supported by the Caisse nationale d’assurance maladie (CNAM), benefits from a grant from ANR (ANR-11-INBS-0002) and is partly funded by MSD, AstraZeneca and Lundbeck.
Conflicts of interest
Abdelkrim Ziad, Claudine Berr, Fabrice Ruiz, Bernard Bégaud, Cédric Lemogne, Marcel Goldberg, Marie Zins, Thibault Mura have no conflicts of interest that are directly relevant to the content of this article.
Ethics approval
The study protocol was approved by the appropriate ethics committee. According to French regulations, the CONSTANCES cohort was approved by the Data Protection Authority (Commission Nationale de l’Informatique et des Libertés) and by the INSERM institutional review board.
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All participants signed a written informed consent before inclusion in the present study.
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The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available because they contain information that could compromise the privacy of the study participants.
Authors’ contributions
AZ and TM co-managed the literature searches and undertook the statistical analysis. AZ wrote the first draft of the manuscript. TM, BB and CL made substantial modifications to the manuscript and approved the final version. CB and FR co-managed the literature searches, made substantial modifications to the manuscript and approved the final version. MZ and MG co-designed the cohort study CONSTANCES and wrote the protocol, made substantial modifications to the manuscript and approved the final version. All authors read and approved the manuscript.
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Ziad, A., Berr, C., Ruiz, F. et al. Anticholinergic Activity of Psychotropic Drugs and Cognitive Impairment Among Participants Aged 45 and Over: The CONSTANCES Study. Drug Saf 44, 565–579 (2021). https://doi.org/10.1007/s40264-021-01043-5
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DOI: https://doi.org/10.1007/s40264-021-01043-5