Sakaguchi Yoshihisa, Kabashima Akira, Okita Keishi, Ojima Yasutomo, Yamamura Shinji, Nishizaki Takashi, Tashiro Hideya, Matsusaka Toshimitsu
Department of Surgery, Matsuyama Red Cross Hospital, 1 Bunkyoumachi, Matsuyama, Ehime 790-8524, Japan.
Gastric Cancer. 2005;8(2):111-6. doi: 10.1007/s10120-004-0313-4.
Although combination therapy of S-1 and cisplatin (CDDP) has excellent efficacy against gastric cancer, the effect of the treatment on survival has been unclear. The aim of this study was to evaluate the long-term outcome of this combination therapy.
Sixty-three patients with advanced or recurrent gastric cancer were treated with S-1, with or without CDDP, as first-line chemotherapy, and the clinical results were compared retrospectively. S-1 was administered orally at a standard dose of 80 mg/m(2). In the treatment of the S-1 group, S-1 was given for 28 consecutive days, followed by a 14-day rest. In the treatment of the S-1/CDDP group, S-1 was given for 21 consecutive days, followed by a 14-day rest, and CDDP, at 60 mg/m(2), was infused on day 8.
The incidence of adverse reactions of more than grade 3 was 22.5% in the S-1 group and 43.5% in the S-1/CDDP group, and the treatment compliance was better in the S-1 group. The overall response rate was 25.9% in the S-1 group, and 36.8% in the S-1/CDDP group. The combination of S-1 with CDDP had better effects on the primary lesion and on differentiated-type carcinoma than S-1 alone. However, there was no difference in survival between the two patient groups. The median survival time after the initiation of treatment in the S-1 group was 322 days, and that in the S-1/CDDP group was 319 days.
Our results suggest that the combination of CDDP with S-1 does not improve the long-term outcome of S-1 therapy.
尽管S-1与顺铂(CDDP)联合治疗对胃癌具有良好疗效,但该治疗对生存期的影响尚不清楚。本研究旨在评估这种联合治疗的长期疗效。
63例晚期或复发性胃癌患者接受S-1治疗,无论是否联合CDDP,作为一线化疗,并对临床结果进行回顾性比较。S-1按标准剂量80mg/m²口服给药。在S-1组治疗中,S-1连续给药28天,随后休息14天。在S-1/CDDP组治疗中,S-1连续给药21天,随后休息14天,CDDP 60mg/m²于第8天静脉滴注。
S-1组3级以上不良反应发生率为22.5%,S-1/CDDP组为43.5%,S-1组治疗依从性更好。S-1组总缓解率为25.9%,S-1/CDDP组为36.8%。S-1与CDDP联合对原发灶和分化型癌的疗效优于单独使用S-1。然而,两组患者的生存期无差异。S-1组治疗开始后的中位生存期为322天,S-1/CDDP组为319天。
我们的结果表明,CDDP与S-1联合不能改善S-1治疗的长期疗效。