Gemcitabine and S-1 versus gemcitabine and cisplatin treatment in patients with advanced biliary tract cancer: a multicenter retrospective study

Naminatsu Takahara, Hiroyuki Isayama, Yousuke Nakai, Takashi Sasaki, Kazunaga Ishigaki, Kei Saito, Dai Akiyama, Rie Uchino, Suguru Mizuno, Hiroshi Yagioka, Hirofumi Kogure, Osamu Togawa, Saburo Matsubara, Yukiko Ito, Nobuo Toda, Minoru Tada, Kazuhiko Koike

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Objective This study aimed to compare the safety and efficacy of the combination therapy of gemcitabine and S-1 (GS) versus gemcitabine and cisplatin (GC) in patients with advanced biliary tract cancer (BTC). Methods In this multicenter retrospective cohort study, a total of 212 patients with advanced BTC receiving GS (n = 125) or GC (n = 87) between July 2006 and August 2015 were analyzed. The primary endpoint was overall survival (OS). The secondary endpoints were progression-free survival (PFS), objective tumor response, and safety. Results Patient characteristics were well balanced between the two groups, except for tumor size (the baseline sum of the largest diameter of the tumor: 6.3 cm in the GS group vs. 8.6 cm in the GC group, p = 0.01). Although the response rate was higher in the GS group than in the GC group (28.8% vs. 10.3%, p = 0.01), the median PFS and OS were comparable between the two groups (PFS of 5.6 vs. 7.6 months, p = 0.74; OS of 12.4 vs. 9.2 months, p = 0.20, respectively). Stomatitis and skin rash were more frequently observed in the GS group, whereas anemia, thrombocytopenia, nausea, and renal toxicity were more commonly observed in the GC group. Conclusion This study demonstrates that GS and GC are similar with regard to their safety and efficacy in patients with advanced BTC. GS could serve as an alternative treatment for advanced BTC as a first-line chemotherapy.

Original languageEnglish
Pages (from-to)269-276
Number of pages8
JournalInvestigational New Drugs
Volume35
Issue number3
DOIs
Publication statusPublished - 1 Jun 2017
Externally publishedYes

Keywords

  • Biliary tract cancer
  • Chemotherapy
  • Cisplatin
  • Gemcitabine
  • Retrospective study
  • S-1

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