London – Colorectal cancer begins in the rectum or colon, and is the third most common cancer diagnosed in both men and women in the United States. Most of the time it develops from polyps that grow on inner lining of the colon or rectum. Though various treatments are available for it, certain tumor cells are therapy-resistant. Now, research suggests that an antifungal drug may be effective against them. The drug itraconazole is typically used in the treatment of fungal infections. Cancer Research UK Cambridge Institute’s researchers have suggested a brand new use for this substance — namely, as a treatment that is able to eliminate dormant tumor cells in colorectal cancer.