Growth hormone secretagogues

Growth hormone secretagogues groups 8 indexed compounds. Also written as ghrelin receptor agonists, GHS, growth hormone releasing peptides.

Definition

Growth hormone secretagogues are compounds that act at the growth hormone secretagogue receptor, the receptor for ghrelin, rather than at the growth hormone releasing hormone receptor. A 2021 Nature Communications paper reports the structural basis of human ghrelin receptor signalling by ghrelin and by the synthetic agonist ibutamoren. Not every member of this class is a peptide.

[1]

Class-level mechanism as reported

Agonism at the growth hormone secretagogue receptor is the shared mechanism. A 1998 European Journal of Endocrinology paper describes ipamorelin as the first selective growth hormone secretagogue, and a 2001 Molecular Endocrinology paper examines regulation of Pit-1 expression by ghrelin and GHRP-6 through the growth hormone secretagogue receptor.

[2, 3]

Members

Compounds indexed under Growth hormone secretagogues
CompoundOther namesPeptideReported half-life
IpamorelinNNC 26-0161YesWithheld pending qualified review
GHRP-6growth hormone releasing peptide 6YesUnknown No pharmacokinetics source was retrieved in v1. PubChem does not carry half-life as a property, so this is recorded as not yet sourced rather than estimated.
HexarelinexamorelinYesWithheld pending qualified review
IbutamorenMK-677, MK-0677, ibutamoren mesylateNoWithheld pending qualified review
AOD9604AOD-9604, hGH fragment 176-191YesUnknown No pharmacokinetics source was retrieved in v1. PubChem does not carry half-life as a property, so this is recorded as not yet sourced rather than estimated.
GHRP-2pralmorelin, growth hormone-releasing peptide-2, KP 102YesUnknown No pharmacokinetics source was retrieved in v1. PubChem does not carry half-life as a property, so this is recorded as not yet sourced rather than estimated.
CapromorelinCP-424391, EntyceNoUnknown No pharmacokinetics source was retrieved in v1. PubChem does not carry half-life as a property, so this is recorded as not yet sourced rather than estimated.
Ghrelinacyl ghrelin, growth hormone-releasing acylated peptideYesWithheld pending qualified review

4 of 8 compounds in this class are withheld pending qualified review, so their reported values are not shown here and their pages are not published. They are listed because the class is incomplete without them.

Where this page sits

Research records for compounds in this class

Side-by-side pages within this class

All classes: class index. All compounds: compound index.

Sources

  1. Structural basis of human ghrelin receptor signaling by ghrelin and the synthetic agonist ibutamoren. Nat Commun (2021). pmid:34737341
  2. Ipamorelin, the first selective growth hormone secretagogue. Eur J Endocrinol (1998). pmid:9849822
  3. Regulation of Pit-1 expression by ghrelin and GHRP-6 through the GH secretagogue receptor. Mol Endocrinol (2001). pmid:11518797

On each stated value was matched to the record cited for it. That is record matching, not an appraisal of the research. Compiled and checked by: Peptide Monographs editorial desk. No qualified clinical reviewer.

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