Natural Language Processing-Based Approach to Detect Common Adverse Events of Anticancer Agents from Unstructured Clinical Notes: A Time-to-Event Analysis.

Journal: Studies in health technology and informatics
Published Date:

Abstract

This study assessed the effectiveness of natural language processing (NLP) in detecting adverse events (AEs) from anticancer agents by analyzing data from over 39,000 cancer patients. A specialized machine learning model identified known AEs from anticancer agents like capecitabine, oxaliplatin, and anthracyclines, revealing a significantly higher incidence in the treatment groups compared to non-users. While the NLP approach effectively detected most symptomatic AEs requiring manual review, it struggled with rarely documented conditions and commonly used clinical terms. Overall, the method shows promise for automated AE detection in medical records, particularly for symptoms without laboratory markers or diagnosis codes.

Authors

  • Masami Tsuchiya
    Division of Drug Informatics, Keio University Faculty of Pharmacy, Tokyo, Japan.
  • Kiminori Shimamoto
    Artificial Intelligence and Digital Twin in Healthcare, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
  • Yoshimasa Kawazoe
    Department of Biomedical Informatics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
  • Emiko Shinohara
    The University of Tokyo Hospital, Tokyo, Japan.
  • Shuntaro Yada
    Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Nara, Japan.
  • Shoko Wakamiya
    Nara Institute of Science and Technology (NAIST), Japan.
  • Shungo Imai
    Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.
  • Hayato Kizaki
    Keio University Faculty of Pharmacy, Division of Drug Informatics, Tokyo, Japan.
  • Satoko Hori
    Keio University Faculty of Pharmacy, Division of Drug Informatics, Tokyo, Japan.
  • Eiji Aramaki
    Nara Institute of Science and Technology (NAIST), Japan.