A Study of the Effect of Gemcitabine With Fish Oil in Patients With Advanced Pancreatic Cancer

Summary

Over 7000 patients are diagnosed with pancreas cancer every year in the UK. Only 10% have it caught early enough to have surgery to cure it. The rest at best can undergo chemotherapy to extend survival, but current treatments offer at best an improvement of only a few months compared to no treatment at all. In addition only about a quarter of patients will respond to the treatment. In addition these patients often experience profound weight loss, loss of appetite and energy primarily because of the cancer process itself. Our hypothesis is that the addition of fish oil infusion to gemcitabine chemotherapy will result in an improved rate of tumour response on CT imaging. Fish oils, or specifically the omega-3 fatty acid component, appear to have a range of powerful anti-cancer actions. This is supported by evidence from a wide range of sources, from laboratory experiments to basic human studies. Although this evidence specifically includes many pancreatic cancer studies in the laboratory it has not yet been confirmed in human trials. Contrary to conventional chemotherapy, fish oil is a naturally occuring non-toxic compound and so is not associated with the side-effects of chemotherapy. In fact a number of clinical studies have demonstrated significant improvements in quality of life for pancreas cancer patients treated with fish oil, particularly with reference to improvements in appetite and energy levels. This is of course in addition to the anti-cancer actions.

Timeline

Start

2009-10

Primary completion

2014-06

Completion

2014-06

Publications

• Background Park KS, Lim JW, Kim H. Inhibitory mechanism of omega-3 fatty acids in pancreatic inflammation and apoptosis. Ann N Y Acad Sci. 2009 Aug;1171:421-7. doi: 10.1111/j.1749-6632.2009.04887.x.
• Background Chiang KC, Persons KS, Istfan NW, Holick MF, Chen TC. Fish oil enhances the antiproliferative effect of 1alpha,25-dihydroxyvitamin D3 on liver cancer cells. Anticancer Res. 2009 Sep;29(9):3591-6.
• Background Spencer L, Mann C, Metcalfe M, Webb M, Pollard C, Spencer D, Berry D, Steward W, Dennison A. The effect of omega-3 FAs on tumour angiogenesis and their therapeutic potential. Eur J Cancer. 2009 Aug;45(12):2077-86. doi: 10.1016/j.ejca.2009.04.026. Epub 2009 Jun 1.
• Background Funahashi H, Satake M, Hasan S, Sawai H, Newman RA, Reber HA, Hines OJ, Eibl G. Opposing effects of n-6 and n-3 polyunsaturated fatty acids on pancreatic cancer growth. Pancreas. 2008 May;36(4):353-62. doi: 10.1097/MPA.0b013e31815ccc44.
• Background Hering J, Garrean S, Dekoj TR, Razzak A, Saied A, Trevino J, Babcock TA, Espat NJ. Inhibition of proliferation by omega-3 fatty acids in chemoresistant pancreatic cancer cells. Ann Surg Oncol. 2007 Dec;14(12):3620-8. doi: 10.1245/s10434-007-9556-8. Epub 2007 Sep 26.
• Background Merendino N, Loppi B, D'Aquino M, Molinari R, Pessina G, Romano C, Velotti F. Docosahexaenoic acid induces apoptosis in the human PaCa-44 pancreatic cancer cell line by active reduced glutathione extrusion and lipid peroxidation. Nutr Cancer. 2005;52(2):225-33. doi: 10.1207/s15327914nc5202_12.
• Background Shirota T, Haji S, Yamasaki M, Iwasaki T, Hidaka T, Takeyama Y, Shiozaki H, Ohyanagi H. Apoptosis in human pancreatic cancer cells induced by eicosapentaenoic acid. Nutrition. 2005 Oct;21(10):1010-7. doi: 10.1016/j.nut.2004.12.013.
• Background Brown TT, Zelnik DL, Dobs AS. Fish oil supplementation in the treatment of cachexia in pancreatic cancer patients. Int J Gastrointest Cancer. 2003;34(2-3):143-50. doi: 10.1385/IJGC:34:2-3:143.
• Arshad A, Chung WY, Steward W, Metcalfe MS, Dennison AR. Reduction in circulating pro-angiogenic and pro-inflammatory factors is related to improved outcomes in patients with advanced pancreatic cancer treated with gemcitabine and intravenous omega-3 fish oil. HPB (Oxford). 2013 Jun;15(6):428-32. doi: 10.1111/hpb.12002. Epub 2012 Nov 22.

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