Will avastin (bevacizumab) increase survival significantly for metastic colon cancer with liver mets ? is it a risky drug

Slight benefit: Bevacizumab (Avastin (bevacizumab)) is one of those drugs that is extremely expensive and often has limited benefit. Patients with metastatic colon cancer who received Avastin (bevacizumab) plus chemotherapy lived 1-2 months longer on average than those receiving chemo only. Because it has marginal benefit but costs ~$30,000 the U.K. Health Service won't pay for it. It can cause skin rash, bleeding or wound healing problems.