Author(s): Kawasaki G, Yoshitomi I, Yanamoto S, Yamada S, Mizuno A
Abstract Share this page
Abstract S-1 is a newly developed oral fluoropyrimidine derivative that is now widely used as a chemotherapeutic agent in the treatment of various carcinomas. This study was performed to assess the efficacy and safety profile of the combination of S-1 and cisplatin(S-1/CDDP)in patients with oral cancer as neo-adjuvant chemotherapy. We reviewed our experience of 12 patients diagnosed with oral carcinoma, who were treated with S-1/CDDP. S-1 was administered orally at a dose of 50mg twice a day for 21 consecutive days, followed by a 14-day rest period. CDDP(60mg/m2)in 500 mL physiological saline was administered by intravenous drip as a 120-min infusion on day 8, together with standard premedications and hydration. Seven partial responders were obtained. The median follow-up duration was 54. 8 months, and all patients were alive excluding one case. This regimen was well tolerated, with only one case of grade 3 thrombocytopenia, and no grade 4 patient. No treatment-related death was observed. Moreover, we evaluated immunohistochemical expressions of thymidylate synthase (TS), dihydropyrimidine dehydrogenase(DPD), and orotate phosphoribosyl transferase(OPRT)which are associated with chemosensitivity to 5-FU-based therapies. We investigated the relation between the immunohistochemical score and clinicopathological factors, however we could not clarify the relationship between the efficacy of chemotherapy and results of immunohistochemistry.
This article was published in Gan To Kagaku Ryoho
and referenced in Journal of Carcinogenesis & Mutagenesis