Association of Risperidone With Gastric Cancer: Triangulation Method From Cell Study, Animal Study, and Cohort Study

Vincent Chin Hung Chen, Tsai Ching Hsu, Chiao Fan Lin, Jing Yu Huang, Yi Lung Chen*, Bor Show Tzang*, Roger S. McIntyre

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

5 Scopus citations


Purpose: To examine the effects of risperidone, an atypical antipsychotic agent, on gastric cancer. Methods: A triangulation method comprising bench studies, including cell and animal experiments, and a retrospective cohort study, was subsequently performed. Results: The bench study indicated that risperidone exerted more prominent tumor inhibition effects than other atypical antipsychotics on the proliferation of KATO-III cells, a human gastric cancer cell line. Significant and dose-dependent cell viability was observed in Hs27 cells (control cells) in the presence of risperidone compared with in KATO-III cells. Both in vivo and in vitro results indicated that risperidone significantly inhibited the proliferation of KATO-III cells by inducing ROS and apoptosis, and that it suppressed the growth of xenografted KATO-III tumors in nude mice. In addition, the population-based cohort study found that risperidone users had reduced risks of gastric cancer compared with non-users, with lowered adjusted hazard ratios (HRs) for two induction periods (HR = 0.75; 95% confidence interval [CI] 0.68–0.83 for the one-year induction period, and HR = 0.68; 95% CI 0.61–0.75 for the two-year induction period). Conclusion: The findings are consistent with anticancer effects associated with risperidone, but further research and evaluations are warranted.

Original languageEnglish
Article number846455
JournalFrontiers in Pharmacology
StatePublished - 04 04 2022

Bibliographical note

Publisher Copyright:
Copyright © 2022 Chen, Hsu, Lin, Huang, Chen, Tzang and McIntyre.


  • animal study
  • bipolar disorder
  • cell study
  • cohort study
  • depression
  • gastric cancer
  • risperidone


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