The present invention relates to a medical device suitable for being inserted into the lumen of an anatomic structure of a subject, said medical device comprising means for administration of TRPC6 inhibitor, wherein said means comprises the TRPC6 inhibitor. The present invention further concerns a method of manufacturing a medical device suitable for being inserted into the lumen of an anatomic structure of a subject. Also, the invention relates to a TRPC6 inhibitor for use in the treatment or prevention of a disease associated with neointimal hyperplasia associated with the migration of smooth muscular cells. The invention also relates to a method of treating or preventing a disease associated with neointimal hyperplasia, said method comprising administering a TRPC6 inhibitor to a subject in need thereof. Also envisaged is a method of inhibiting migration of smooth muscle cells. The invention additionally relates to an in vitro test kit comprising: (a) small muscle cells (SMCs); (b) a surface suitable for SMC cultivation coated with a TRPC6 inhibitor. Also concerned is a pharmaceutical composition comprising a TRPC6 inhibitor and a pharmaceutically acceptable carrier.