Abstract
Background
In the treatment of depression, it is essential to monitor for early warnings of suicide.
Objective
The aim of this study was to identify the symptoms that would suggest a high suicide risk by analyzing data obtained from the US Food and Drug Administration Adverse Event Reporting System (FAERS) of selective serotonin reuptake inhibitors.
Methods
Using FAERS reports from 1997 to the second quarter of 2012, we constructed the co-occurrence network of adverse events. From this network, we extracted the events that were strongly connected to suicidal events (suicidal attempts, suicidal ideation, suicidal behavior, and complete suicide) by means of the community detection method.
Results
We succeeded in obtaining a list of suicide-related adverse events. Owing to the randomness inherent in the algorithms of community detection, we found that the obtained list differed according to each trial of analysis. However, the lists we derived show considerable efficiency in identifying suicidal events.
Conclusion
The network analysis appears to be a promising method for identifying signals of suicide.
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Notes
MedDRA®, the Medical Dictionary for Regulatory Activities terminology, is the international medical terminology developed under the auspices of the International Conference on Harmonization of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH). The MedDRA® trademark is owned by the International Federation of Pharmaceutical Manufacturers and Associations (IFPMA) on behalf of ICH.
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Conflict of interest statement
No external sources of funding were used in the preparation of this study. Alwis Nazir, Takashi Ichinomiya, Nobuteru Miyamura, Yasuaki Sekiya and Yasutomi Kinosada have no conflicts of interest that are directly relevant to the contents of this study.
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Nazir, A., Ichinomiya, T., Miyamura, N. et al. Identification of Suicide-Related Events Through Network Analysis of Adverse Event Reports. Drug Saf 37, 609–616 (2014). https://doi.org/10.1007/s40264-014-0195-2
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DOI: https://doi.org/10.1007/s40264-014-0195-2