イタバシ　ミチオ   Itabashi Michio   板橋　道朗    所属   医学部 医学科    職種   特任教授
論文種別	原著
言語種別	英語
査読の有無	査読なし
表題	S-1 and oxaliplatin versus tegafur-uracil and leucovorin as post-operative adjuvant chemotherapy in patients with high-risk stage III colon cancer: updated 5-year survival of the phase III ACTS-CC 02 trial.
掲載誌名	正式名：ESMO open 略　 称：ESMO Open ISSNコード：20597029/20597029
掲載区分	国外
巻・号・頁	6(2),pp.100077
著者・共著者	Watanabe J, Sasaki S, Kusumoto T, Sakamoto Y, Yoshida K, Tomita N, Maeda A, Teshima J, Yokota M, Tanaka C, Yamauchi J, Uetake H, Itabashi Michio, Takahashi K, Baba H, Kotake K, Boku N, Aiba K, Morita S, Takenaka N, Sugihara K
発行年月	2021/03
概要	BACKGROUND:The ACTS-CC 02 trial demonstrated that S-1 plus oxaliplatin (SOX) was not superior to tegafur-uracil and leucovorin (UFT/LV) in terms of disease-free survival (DFS) as adjuvant chemotherapy for high-risk stage III colon cancer (any T, N2, or positive nodes around the origin of the feeding arteries). We now report the final overall survival (OS) and subgroup analysis according to the pathological stage (TNM 7th edition) for treatment efficacy.PATIENTS AND METHODS:Patients who underwent curative resection for pathologically confirmed high-risk stage III colon cancer were randomly assigned to receive either UFT/LV (300 mg/m2 of UFT and 75 mg/day of LV on days 1-28, every 35 days, five cycles) or SOX (100 mg/m2 of oxaliplatin on day 1 and 80 mg/m2/day of S-1 on days 1-14, every 21 days, eight cycles). The primary endpoint was DFS and the patients' data were updated in February 2020.RESULTS:A total of 478 patients in the UFT/LV group and 477 patients in the SOX group were included in the final analysis. With a median follow-up time of 74.3 months, the 5-year DFS rate was 55.2% in the UFT/LV group and 58.1% in the SOX group [stratified hazard ratio (HR) 0.92; 95% confidence interval (CI) 0.76-1.11; P = 0.3973], and the 5-year OS rates were 78.3% and 79.1%, respectively (stratified HR 0.97; 95% CI 0.76-1.24; P = 0.8175). In the subgroup analysis, the 5-year OS rates in patients with T4N2b disease were 51.0% and 64.1% in the UFT/LV and SOX groups, respectively (HR 0.72; 95% CI 0.40-1.31).CONCLUSION:Our final analysis reconfirmed that SOX as adjuvant chemotherapy is not superior to UFT/LV in terms of DFS in patients with high-risk stage III colon cancer. The 5-year OS rate was similar in the UFT/LV and SOX groups.
DOI	10.1016/j.esmoop.2021.100077
PMID	33714860