Which medications in the drug class Thymidine Analog are used in the treatment of Gastric Cancer?

Updated: Feb 23, 2021
  • Author: Elwyn C Cabebe, MD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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Thymidine Analog

Following uptake into cancer cells, trifluridine is incorporated into DNA, interferes with DNA synthesis and inhibits cell proliferation.

Tipiracil/trifluridine (Lonsurf)

Tipiracil is a thymidine phosphorylase inhibitor that increases trifluridine exposure by inhibiting its metabolism. Trifluridine is a thymidine-based nucleoside analog that incorporates into DNA, interferes with DNA synthesis, and inhibits cell proliferation. It is indicated for metastatic gastric or gastroesophageal junction (GEJ) adenocarcinoma previously treated with at least 2 prior lines of chemotherapy that included a fluoropyrimidine, a platinum, either a taxane or irinotecan, and if appropriate, HER2/neu-targeted therapy.

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