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Drugs

, Volume 67, Issue 16, pp 2293–2310 | Cite as

Adjuvant Therapy in Pancreatic Cancer

A Critical Appraisal
  • Helmut Oettle
  • Peter Neuhaus
Current Opinion

Abstract

Adenocarcinoma of the pancreas carries a grim prognosis. Surgery is currently the only curative option, but even the few patients undergoing complete resection of early localised disease run a high risk for relapse and death. Although numerous clinical trials have been conducted during the past 20 years to find an effective adjuvant treatment, thus far no general consensus on the most appropriate regimen has been reached. In a small randomised study performed in the 1980s by the GITSG (Gastrointestinal Tumor Study Group), encouraging results were obtained with fluorouracil (5-FU)-based split-course chemoradiotherapy, but these findings were not confirmed in a randomised study initiated some years later by the EORTC (European Organisation for Research and Treatment of Cancer). More recently, the ESPAC (European Study Group for Pancreatic Cancer)-1 trial even indicated a detrimental effect of chemoradiotherapy, while chemotherapy with 5-FU was shown to have a significant positive impact on long-term survival. However, this latter finding is in contrast to earlier studies of adjuvant chemotherapy with 5-FU combinations from Norway and Japan that did not suggest a prolonged beneficial effect of 5-FU on survival. Thus, the results for adjuvant regimens based on systemic 5-FU with or without external radiotherapy are conflicting. Clinical experience with intraoperative radiotherapy or regionally targeted chemotherapy to prevent local relapse, though encouraging, is still preliminary. More recently, gemcitabine, which is the most effective single agent in advanced pancreatic cancer, has also been evaluated in the adjuvant setting. The RTOG (Radiation Therapy Oncology Group)-9704 trial demonstrated that gemcitabine is superior to 5-FU as an addition to chemoradiotherapy, but the results did not allow conclusions about the value of radiation in the combined modality approach. The Charité Onkologie CONKO-001 is a randomised trial from Germany and Austria that compared adjuvant gemcitabine with observation alone. Gemcitabine was very well tolerated and almost doubled median disease-free survival and overall survival rate at 5 years, although the advantage in overall survival failed to reach statistical significance. In summary, the available data from randomised clinical trials of adjuvant therapy suggest that (i) chemoradiotherapy has no obvious advantage compared with chemotherapy alone; and (ii) chemotherapy with gemcitabine is effective and probably offers the best benefit-risk ratio of all currently available adjuvant treatment options.

Keywords

Pancreatic Cancer Gemcitabine Advanced Pancreatic Cancer Positive Resection Margin Resected Pancreatic Cancer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors would like to thank the many seriously ill patients for their willingness to participate in one of the clinical studies of adjuvant therapy in pancreatic cancer, and the numerous trial investigators, nurses and support staff for their enthusiasm and dedication to pursue clinical research and improve treatment for this devastating disease.

Dr Oettle received no funding for preparation of this review but received grant support for clinical research projects from the German branches of the following pharmaceutical companies: Amgen, Antisense Therapeutics, Caremark/Fresenius Cabi GmbH, GlaxoSmithKline, Lilly, Logomed, Medac, Merck KG, Novartis, Orion Clinical, Janssen Cilag/Ortho Biotech, Quintiles, Roche Pharma, Sanofi-Aventis and Ribosepharm. Dr Oettle also reports receiving compensation for providing clinical lectures for Lilly and Sanofi-Aventis between 2.5 and 5 years ago. Dr Neuhaus has no conflicts of interest that are directly relevant to the contents of this review.

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Copyright information

© Adis Data Information 2007

Authors and Affiliations

  • Helmut Oettle
    • 1
  • Peter Neuhaus
    • 2
  1. 1.Department of Medical Hematology and OncologyCharité-Universitätsmedizin BerlinBerlinGermany
  2. 2.Department of General, Visceral and Transplantation SurgeryCharité-Berlin University School of Medicine, Campus Virchow-KlinikumBerlinGermany

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