Angiopeptin TFA, a cyclic octapeptide analogue of somatostatin, is a weak sst2/sst5 receptor partial agonist with IC50 values of 0.26 nM and 6.92 nM, respectively. Angiopeptin TFA is a potent inhibitor of growth hormone release and insulin-like growth factor-1 (IGF-1) production. Angiopeptin TFA inhibits adenylate cyclase or stimulates extracellular acidification. Angiopeptin TFA has the potential for coronary atherosclerosis research.