The invention relates to processes for identifying chemical compounds which are capable of modulating the interaction between VASP and zyxin. VASP or a VASP derivative and zyxin or a zyxin derivative which interact with one another are brought into contact with a chemical compound to be examined. The effect on the interaction can be determined using antibodies against VASP or a VASP derivative and/or zyxin or a zyxin derivative, or with the aid of fluorescent labels on VASP or a VASP derivative and zyxin or a zyxin derivative.