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Analyzing research trends on drug safety using topic modeling.

Chen Zou1

  • 1a Safety Surveillance and Risk Management , Pfizer (China) Research & Development , Shanghai , China.

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Drug safety research trends show increasing focus on electronic health records and biologic therapies. Benefit-risk assessment remains a key topic, while spontaneous reporting research slightly declines.

Keywords:
Drug safetyresearch trendstext miningtopic modeling

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Area of Science:

  • Pharmacovigilance and Drug Safety Research
  • Computational Text Analysis in Medicine

Background:

  • Drug safety data has rapidly evolved due to scientific and technological advancements.
  • Identifying key information in the vast body of drug safety literature is challenging.
  • Topic modeling offers a powerful approach to extract insights from unstructured text data.

Purpose of the Study:

  • To analyze trends in drug safety research topics over a decade (2007-2016).
  • To identify the most prevalent and emerging themes in drug safety literature.

Main Methods:

  • Analysis of 4347 article titles and abstracts from four drug safety journals.
  • Application of Latent Dirichlet Allocation (LDA) for topic extraction (50 topics identified).
  • Trend analysis to evaluate the temporal popularity of identified topics.

Main Results:

  • Top topics include 'benefit-risk assessment and communication', 'diabetes', and 'biologic therapy for autoimmune diseases'.
  • Research on electronic health records/observational data for safety surveillance shows increasing popularity.
  • A slight decrease in research on spontaneous reporting signal detection was observed, though it remains crucial for benefit-risk assessment.
  • Topics related to medical conditions and treatments exhibited dynamic patterns over time.

Conclusions:

  • Drug safety research is shifting towards utilizing real-world data and focusing on specific therapeutic areas like biologics.
  • Benefit-risk assessment remains a central theme, adapting to new data sources and therapeutic modalities.
  • Understanding these trends is vital for navigating the evolving landscape of drug safety research and practice.