Alliance A221805

This phase II/III trial studies the best dose of duloxetine and how well it works in preventing pain, tingling, and numbness (peripheral neuropathy) caused by treatment with oxaliplatin in patients with stage II-III colorectal cancer. Duloxetine increases the amount of certain chemicals in the brain that help relieve depression and pain. Giving duloxetine in patients undergoing treatment with oxaliplatin for colorectal cancer may help prevent peripheral neuropathy.

SWOG S0820

This randomized phase III trial studies how well eflornithine works compared to sulindac in preventing the return of the disease (recurrence) of high-risk adenomas and second primary disease in patients with stage 0-III colon or rectal cancer. Drugs used in chemotherapy, such as eflornithine and sulindac, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. It is not yet known whether eflornithine is more effective than sulindac when given alone or in combination in preventing recurrence of cancer.

SWOG S1820

This phase II trial studies how a diet intervention works in improving bowel dysfunction symptoms related in colon or rectal cancer survivors. Changing a diet may be helpful in reducing the severity of bowel symptoms, including diarrhea and constipation, and improve quality of life in colon or rectal cancer survivors and help doctors learn how to help patients better in the future.

Wake Forest WF-1806

This trial studies if myopenia (low muscle mass) plays a role in experiencing side effects from chemotherapy in older patients with colorectal cancer that has spread to other areas of the body (metastatic). Chemotherapy treatments for colorectal cancer can cause side effects such as low blood counts, nausea and vomiting, or mouth sores. Researchers are trying to determine if muscle mass has a role in how bad side effects from chemotherapy can be.