GHRP-2
Also known as
GHRP-2 is catalogued in the Peptides Pub research index, with coverage focused on Lean mass.
Evidence
Small or single human study
Risk band
Serious AEs reported or theoretical
Research goals
Summary
GHRP-2 (pralmorelin) is a synthetic growth hormone-releasing peptide and GHS-R agonist developed primarily as a diagnostic agent for hypothalamic-pituitary function; it was awaiting approval in Japan for this diagnostic indication and underwent phase II trials for short stature, while US development for GH deficiency was discontinued [1]. In a controlled human study, GHRP-2 infusion increased food intake by roughly 36% versus saline in healthy men and significantly raised serum GH levels, paralleling effects reported for ghrelin [2]. Preclinical work indicates GHRP-2 can directly act on myocytes to attenuate muscle-atrophy-related ubiquitin ligases [4]. The remaining literature concerns urinary detection of GHRP-2 in anti-doping testing rather than therapeutic efficacy [3]. Human evidence for GHRP-2 as an administered therapeutic is therefore limited, anchored mainly in diagnostic use and small mechanistic studies [1,2].
Sources
- 1. Pralmorelin: GHRP 2, GPA 748, growth hormone-releasing peptide 2, KP-102 D, KP-102 LN, KP-102D, KP-102LN Drugs in R&D, 2004.
- 2. Growth hormone releasing peptide-2 (GHRP-2), like ghrelin, increases food intake in healthy men The Journal of clinical endocrinology and metabolism, 2005.
- 3. Detection of GHRP-2 and GHRP-6 in urine samples from athletes Drug testing and analysis, 2015.
- 4. GHRP-2, a GHS-R agonist, directly acts on myocytes to attenuate the dexamethasone-induced expressions of muscle-specific ubiquitin ligases, Atrogin-1 and MuRF1 Life sciences, 2008.
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