Treating colorectal cancer that has spread to other sites involves a combination of chemotherapies. One regimen that's been in use has been proven to extend life and is likely to become the standard of care. A phase III trial has found that continued use of Avastin ( bevacizumab ), along with different first- and second-line chemotherapies, prevents the disease from progressing by 1.6 months longer than traditional therapy. This research also indicates that people using Avastin lived with advanced colorectal cancer another 1.4 months. Ask your doctor the exact benefits of all th...