AVASTIN and Blood Vessels

1. Avastin normalizes blood vessel and therefore improves drug delivery
2.Combination with anti-EGFR, shortens PFS
3. Changes endothelium
4. Refractoriness soon develops
5.no cures
6.lack of biomarkers to optimally evaluate,monitor efficacy, and therefore dose optimally
7.Increasing Fibroblast growth factor as a way of dealing with lack of VEGF receptors
?dummy receptor to hijack extracellular - transcription factors increase