The results of a very interesting study were presented at the recent
Pancreatic cancer think tank meeting in Utah (Sept 1999). The meeting
was sponsored by the NCI and the Lustgarten Foundation.
For patients with pancreatic cancer, profound weight loss will often
shorten their survival.The study demonstrated that taking fish oils
helped pancreatic cancer patients gain weight. More importantly, these
patients ate better and felt stronger.
In the laboratory, fish oils appear to block the effects of cancer
on muscle breakdown. We also know that several of the compounds that
cancers release cause cachexia,
a general weight loss and wasting of muscle mass. Blocking the effects
of these compounds may ultimately be of further benefit in the fight
against cancer cachexia.
Fish oil capsules often contain a mixture of compounds. The active
compound in this study was EPA (eicopentanoic acid), a compound found
in some vegetable oils. Patients in this study took 2g/day in two doses.
Generally the medication is well tolerated.
Although there have been many other studies looking at fish oils in
other conditions with similar doses, it is important to note that these
findings needs confirmation in larger studies. Although maintaining
weight will usually translate into improved survival, this study is
too preliminary to show this yet. The next step for these researchers
is to see if taking fish oils could actually improve survival. We need
to know if fish oils help or hinder cancer growth. But until such studies
are done, patients may wish to try taking fish oil in their efforts
to help maintain their weight and strength.
This study was published in the September 1999 issue of the British
Journal of Cancer