Antiangiogenic

Antiangiogenic refers to a chemical or biological agent that inhibits or greatly reduces formation of new blood vessels (angiogenesis).These agents are sometimes used to combat cancer by starving tumors of the blood needed to grow and spread.The pharmaceutical thalidomide is such an antiangiogenic agent.
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An·ti·an·gi·o·gen·ic adj. Inhibiting the growth of blood vessels. antiangiogenic, n a drug or substance used to stop the growth of tumors and [more]Antiangiogenic - Community and Resources

Having to do with reducing the growth of new blood vessels. 

a general term for drugs which have the capability of preventing new vessel growth (neovascularization) in the retina. For information about current research, see Antiangiogenic Drugs May Stop Neovascularization in Wet Macular Degeneration in the MD Support Library.