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Healthc Inform Res > Volume 15(2); 2009 > Article
Journal of Korean Society of Medical Informatics 2009;15(2):191-199.
DOI: https://doi.org/10.4258/jksmi.2009.15.2.191    Published online June 30, 2009.
A Data Warehouse Based Retrospective Post-marketing Surveillance Method: A Feasibility Test with Fluoxetine
Man Young Park1, Young Ho Lee2, Eun Yeob Kim1, Woo Jae Kim1, Hye Jin Kam1, Jong Pill Choi3, Tae Hwa Han1, Un Gu Kang2, Rae Woong Park1
1Department of Medical Informatics, Ajou University School of Medicine, Korea.
2Department of Medicine and Science, Gacheon University School of Medicine, Korea.
3Division of Bio-Medical Informatics, Center for Genome Science, National Institute of Health, KCDC, Korea.
Correspondence:  Rae Woong Park,
Received: 18 February 2009

Objective: Post-marketing surveillance (PMS) is an adverse events monitoring practice of pharmaceutical drugs on the market. Traditional PMS methods are labor intensive and expensive to perform, because they are largely based on manual work including phone-calling, mailing, or direct visits to relevant subjects. The objective of this study was to develop and validate a PMS methodology based on the clinical data warehouse (CDW).

Methods: We constructed a archival DB using a hospital information system and a refined CDW from three different hospitals. Fluoxetine hydrochloride, an antidepressant, was selected as the target monitoring drug. Corrected QT prolongation on ECG was selected as the target adverse outcome. The Wilcoxon signed rank test was performed to analyze the difference in the corrected QT interval before and after the target drug administration.

Results: A refined CDW was successfully constructed from three different hospitals. Table specifications and an entity-relation diagram were developed and are presented. A total of 13 subjects were selected for monitoring. There was no statistically significant difference in the QT interval before and after target drug administration (p=0.727).

Conclusion: The PMS method based on CDW was successfully performed on the target drug. This IT-based alternative surveillance method might be beneficial in the PMS environment of the future.

Key Words: Post-marketing Surveillance, Clinical Data Warehouse, Fluoxetine, QT Prolongation
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