Polypeptide inhibitors of urokinase type plasminogen activator

A conjugate which is capable of specific binding to and inhibition of urokinase-type plasminigen activator (UPA) comprising a polypeptide molecule and a scaffold molecule, wherein said polypeptide molecule is attached to said scaffold molecule by at least three covalent bonds and wherein the inhibition constant (Ki) for said inhibitor is less than 500nM.