Field Of Vision
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World J Gastroenterol. Nov 28, 2012; 18(44): 6376-6378
Published online Nov 28, 2012. doi: 10.3748/wjg.v18.i44.6376
Advanced gastric cancer: Is there enough evidence to call second-line therapy standard?
Hendrik-Tobias Arkenau, Matilde Saggese, Charlotte Lemech
Hendrik-Tobias Arkenau, Matilde Saggese, Charlotte Lemech, Drug Development Unit, Sarah Cannon Research UK, University College London, London W1G 6AD, United Kingdom
Author contributions: Arkenau HT wrote the manuscript supported by Saggese M and Lemech C.
Correspondence to: Dr. Hendrik-Tobias Arkenau, PhD, Drug Development Unit, Sarah Cannon Research UK, University College London, 93 Harley Street, London W1G 6AD, United Kingdom. tobias.arkenau@sarahcannonresearch.co.uk
Telephone: +44-203-2195251 Fax: +44-207-0348465
Received: July 19, 2012
Revised: September 25, 2012
Accepted: September 29, 2012
Published online: November 28, 2012
Abstract

Gastric cancer and cancer of the gastro-oesophageal junction (GOJ) are the 4th most common cancer diagnoses worldwide with regional differences in incidence rates. The treatment of gastric and GOJ cancers is complex and requires multimodality treatment including chemotherapy treatment, surgery, and radiotherapy. During the past decade considerable improvements were achieved by advanced surgical techniques, tailored chemotherapies/radiotherapy and technical innovations in clinical diagnostics. In patients with advanced or metastatic gastric/GOJ cancer systemic chemotherapy with fluoropyrimidine/platinum-based regimens (+/-human epidermal growth factor receptor-2 antibody) is the mainstay of treatment. Despite these improvements, the clinical outcome for patients with advanced or metastatic disease is generally poor with 5-year survival rates ranging between 5%-15%. These poor survival rates may to some extent be related that standard therapies beyond first-line therapies have never been defined. Considering that this patient population is often not fit enough to receive further treatments there is an increasing body of evidence from phase-2 studies that in fact second-line therapies may have a positive impact in terms of overall survival. Moreover two recently published phase-3 studies support the use of second-line chemotherapy. A South Korean study compared either, irinotecan or docetaxel with best supportive care and a German study compared irinotecan with best supportive care-both studies met their primary endpoint overall survival. In this “Field of Vision” article, we review these recently published phase-3 studies and put them into the context of clinical prognostic factors helping to guide treatment decisions in patients who most likely benefit.

Keywords: Gastric cancer, Cancer of the gastro-esophageal junction, Second-line chemotherapy, Best supportive care, Survival