Hexarelin, a synthetic growth hormone-releasing peptide, shows no interaction with corticotropin-releasing hormone and vasopressin on adrenocorticotropin and cortisol secretion in humans. - Arvat,E.; Maccagno,B.; Ramunni,J.; Di Vito,L.; Broglio,F.; Deghenghi,R.; Camanni,F.; Ghigo,E. (Neuroendocrinol, 1997)