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12.09.2019 | Original Article

Long-term outcomes of preoperative docetaxel with cisplatin plus S-1 therapy for gastric cancer with extensive nodal metastasis (JCOG1002)

Zeitschrift:
Gastric Cancer
Autoren:
Daisuke Takahari, Seiji Ito, Junki Mizusawa, Hiroshi Katayama, Masanori Terashima, Mitsuru Sasako, Shinji Morita, Takashi Nomura, Makoto Yamada, Yoshiyuki Fujiwara, Yutaka Kimura, Atsuki Ikeda, Yoshio Kadokawa, Takeshi Sano, the Stomach Cancer Study Group of the Japan Clinical Oncology Group
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Abstract

Background

Preoperative chemotherapy with cisplatin plus S-1 (CS) followed by gastrectomy with D2 plus para-aortic lymph node (PAN) dissection is regarded as a standard treatment in Japan for advanced gastric cancer with bulky lymph node (BN) and/or PAN metastasis. In the JCOG1002, we added docetaxel to CS (DCS) to further improve long-term outcomes. However, the primary endpoint, clinical response rate (RR), did not reach the expected level (Ito et al. in Gastric Cancer 20:322–31, 2017). Herein, we report our long-term survival results.

Methods

Patients with BN and/or PAN metastasis received 2 or 3 cycles of DCS therapy (docetaxel at 40 mg/m2 and cisplatin at 60 mg/m2 on day 1 and S-1 at 80 mg/m2 per day for 2 weeks, followed by a 2-week rest) followed by gastrectomy with D2 plus PAN dissection and postoperative S-1 for 1 year.

Results

Between July 2011 and May 2013, 53 patients were enrolled. Clinically, 17.0% had both PAN and BN metastasis, and the rest had either PAN (26.4%) or BN (56.6%) metastasis. Among all eligible patients, the 5-year overall survival was 54.9% (95% confidence interval 40.3–67.3%) at the last follow-up in May 2018. Among 44 eligible patients with R0 resection, the 5-year relapse-free survival was 47.7% (95% confidence interval 32.5–61.5%).

Conclusions

Adding docetaxel to CS in preoperative chemotherapy for extensive nodal metastasis improved neither short-term outcomes nor long-term survival. Preoperative chemotherapy with CS followed by D2 + PAN dissection and postoperative S-1 remains the standard of care for patients with extensive nodal metastasis.

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