Nitazoxanide in Patients With Metastatic Colorectal Cancer

This study tests whether an anti-parasitic drug called nitazoxanide can help treat colorectal cancer that has spread to other organs (metastatic). Researchers believe the drug may have anti-cancer properties in addition to its known uses. **You may be eligible if...** - You have been diagnosed with stage IV (metastatic) colorectal cancer confirmed by biopsy - You are between 18 and 65 years old - You are in reasonably good overall health - Your liver is functioning adequately - Women of childbearing age must use contraception **You may NOT be eligible if...** - You have conditions that prevent you from safely receiving chemotherapy - Your liver function is significantly impaired - You are pregnant or breastfeeding Talk to your doctor to see if this trial is right for you.