Abstract
Purpose
The prognosis of patients with unresectable M0 gastric cancer remains very poor. We performed a phase II trial to explore the efficacy and toxicity of induction irinotecan-cisplatin (IC) followed by concurrent irinotecan-cisplatin and radiotherapy (IC/RT) in this setting.
Methods and materials
Patients with unresectable M0 gastric (GC) or oesophageal-gastric junction (EGJC) adenocarcinomas were treated with two courses of IC (irinotecan, 65 mg/m2; cisplatin, 30 mg/m2 on days 1 and 8 every 21 days) followed by IC/RT (daily radiotherapy—45 Gy—with concurrent IC: irinotecan, 65 mg/m2, and cisplatin, 30 mg/m2, on days 1, 8, 15, and 22). Resectability was reassessed after this treatment, and surgical resection was performed if feasible. The primary endpoint was the R0 resection rate after induction treatment.
Results
Seventeen patients were included in the study (EGJC: 6; GC: 11). An R0 resection was achieved in only 5 patients (29%), and according to the design of the trial (Simon’s optimal two-stage) accrual of patients was terminated after the first stage. No patient died during IC, whereas 3 patients (24%) died during IC/RT and one of 5 resected patients (20%) died during the first 30 days after resection. The median survival was 10.5 months, and the actuarial 2-year survival rate was 27%.
Conclusions
Induction IC followed by IC/RT showed poor efficacy and significant toxicity in patients with unresectable GC/EGJC.
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Acknowledgments
We thank the patients and the medical and nursing staff of all the participating institutions. We also thank David Asensio, Julita Ocaña, Matilde Salcedo, Noelia Vega, Yolanda Blanco and Inmaculada Ruiz de Mena for their helpful comments on the manuscript. This work was supported by an unrestricted grant from Laboratorios Almirall, Barcelona, Spain.
Conflict of interest
Fernando Rivera served on the advisory board and received travel and research grants from Roche, Sanofi –Aventis and Merck-Serono. Maica Galán served on the advisory board for Roche. No conflicts of interest pertain to the remaining authors.
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Rivera, F., Galán, M., Tabernero, J. et al. Phase II trial of induction irinotecan-cisplatin followed by concurrent irinotecan-cisplatin and radiotherapy for unresectable, locally advanced gastric and oesophageal-gastric junction adenocarcinoma. Cancer Chemother Pharmacol 67, 75–82 (2011). https://doi.org/10.1007/s00280-010-1285-1
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DOI: https://doi.org/10.1007/s00280-010-1285-1