Gemzar( gemcitabine) has been tested for colon and recatl cancer. A 1992 study found that Gemcitabine did not demonstrate activity against advanced colorectal adenocarcinoma. ON teh other hand,a much later study found that Gemcitabine has a modest activity in heavily pre-treated colorectal cancer patients and may be an option in good performance status patients. There are a number of reports and ongoing studies of gemcitabine in combination for colorectal cancer. A recent study, Gemcitabine in Treating Patients With Advanced Colorectal Cancer, NCT00007943, was completed in 2009 but not published as of 2012.
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