Research Context
Ipamorelin is a synthetic pentapeptide growth hormone secretagogue developed by Novo Nordisk in the late 1990s. It selectively activates the ghrelin/GHSR receptor without significantly affecting cortisol or prolactin levels in preclinical models — a selectivity profile that distinguishes it from earlier secretagogues like GHRP-6 and GHRP-2.
Published research examines receptor binding selectivity, structure-activity relationships in growth hormone secretagogue design, and comparative pharmacology with other secretagogue classes. Ipamorelin's well-characterized selectivity profile makes it a valuable reference compound for researchers studying GHSR signaling specificity.
Key References
Raun K, et al. (1998). "Ipamorelin, the first selective growth hormone secretagogue." Eur J Endocrinol. 139(5):552-561. PMID: 9849822
Anderson LL, et al. (2001). "Ipamorelin increases bone mineral content." J Endocrinol. 171(1):55-62. PMID: 11572790
Jimenez-Reina L, et al. (2002). "Structure-activity relationships of growth hormone secretagogues." Neuroendocrinology. 75(5):286-296.