The condition and the treatment
Colorectal cancer, also known as bowel cancer, affects parts of the bowel called the colon or rectum. It is described as metastatic if it has spread from the colon or rectum to other parts of the body.
Aflibercept (also known as Zaltrap) is a drug that can slow down cancer growth.
NHS Choices (www.nhs.uk) may be a good place to find out more.