Chinese Journal of Pharmacovigilance ›› 2020, Vol. 17 ›› Issue (6): 373-376.
DOI: 10.19803/j.1672-8629.2020.06.12

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Serious Delayed Diarrhea Induced by IRIS Regimen in an UGT1A1-wild-genotype Patient

MEI Dan, LU Junguo, GU Haijuan, NI Meixin*   

  1. Affiliated Tumor Hospital of Nantong University, Nantong Jiangsu 226361, China
  • Received:2019-05-16 Revised:2020-06-22 Online:2020-06-15 Published:2020-06-01

Abstract: Objective To report and analyze one case of serious delayed diarrhea induced by chemotherapy of irinotecan combined with S-1 (IRIS regimen) in an uridine-diphosphoglucuronosyl transferase 1A1 (UGT1A1)-wild-genotype patient with metastatic recal cancer. Methods The diagnosis and treatment process of the case of delayed diarrhea after IRIS regimen chemotherapy was analyzed and related literature was reviewed. Results The serious delayed diarrhea was possibly induced by IRIS regimen chemotherapy, which might be related to the gene polymorphisms of irinotecan transporters and the combination with S-1. Conclusion We should be alert to the occurrence of serious delayed diarrhea when IRIS regimen chemotherapy is used for UGT1A1-wild-genotype patients.

Key words: Delayed diarrhea, IRIS regimen, UGT1A1 gene polymorphisms

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