In 2003, a clinical trial demonstrating prolonged survival of patients with metastatic colorectal cancer when chemotherapy was administrated in combination with humanized neutralizing antibodies targeting anti-vascular endothelial growth factor (VEGF) resulted in an FDA approval and provided proof-of-concept that anti-angiogenic therapy can be successfully used to treat cancer [4]. Here, VEGFA is linked to metastatic colorectal cancer.