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GHRP-2

Pralmorelin, Growth Hormone Releasing Peptide-2, KP-102

A synthetic hexapeptide that mimics ghrelin to stimulate growth hormone release from the pituitary gland via GHS receptors.

Molecular Profile
Formula C45H55N9O6
Mol. Weight 818.0 g/mol
Sequence Gly-Glu-Pro-Pro...
Route
Intravenous (IV)
1 mcg/kg
INT
Subcutaneous (SC)
100-300 mcg
SUB
Intranasal
900 mcg
INT
Oral
2.5 mg
ORA

How It Works

How It Works: GHRP-2 acts as a ghrelin receptor agonist, binding to GHS-R in the pituitary and hypothalamus to promote growth hormone secretion and related physiological effects.

  • Binds to the growth hormone secretagogue receptor (GHS-R1a), activating downstream signaling pathways.
  • Increases intracellular calcium concentration and cAMP levels, leading to GH release from somatotroph cells.
  • Amplifies the action of growth hormone-releasing hormone (GHRH) for synergistic GH stimulation.
  • May also influence appetite regulation and ACTH secretion through similar mechanisms.

Latest Clinical Trials

Completed PHASE2 NCT02929459

Effects of Riboflavin on Faecalibacterium Prausnitzii and the Gut Microbiota

DSM Nutritional Products, Inc.
INTERVENTIONAL
Updated Dec 15, 2025
View All Clinical Trials

Latest Studies

Utility 1
pubmed Jun 17, 2025

One Case of Sudden Isolated Adrenocorticotropic Hormone (ACTH) Deficiency Diagnosed Based on Repeated Hypoglycemic Attacks.

Sato. Tomohide T

A 28‑year‑old man with Hashimoto's thyroiditis had repeated severe low‑blood‑sugar episodes caused by a sudden loss of ACTH, the hormone that tells the adrenal glands to make cortisol. Tests showed his pituitary was otherwise normal, and imaging showed small adrenal glands. He was treated with hydrocortisone and stopped having hypoglycemia. The case suggests that isolated ACTH deficiency, though rare, can cause dangerous low blood sugar and should be considered in similar situations.

Utility 2
pubmed Apr 10, 2025

Benchmark for Setting ACTH Cell Dosage in Clinical Regenerative Medicine for Post-Operative Hypopituitarism.

Kondo. Tatsuma T; Suga. Hidetaka H; Takeuchi. Kazuhito K; Fuse. Yutaro Y; Sato....

The study measured how much growth hormone (GH) and ACTH the body can make when stimulated with GHRP‑2 and CRH, using data from patients with pituitary tumors. They found an average GH peak of about 25 ng/mL after a GHRP‑2 test, which can serve as a reference point for how much GH a healthy pituitary might release.

Utility 2
pubmed Dec 12, 2024

Growth Hormone-Releasing Peptide 2 May Be Associated With Decreased M1 Macrophage Production and Increased Histologic and Biomechanical Tendon-Bone Healing Properties in a Rat Rotator Cuff Tear Model.

Li. Yinghao Y; Yao. Lei L; Zhang. Chunsen C; Li. Tao T; Wang. Duan D; Li. Jian J...

In rats, giving the peptide GHRP-2 after a rotator cuff tear lowered harmful inflammation and helped the tendon reattach to bone better, making the repair stronger and improving how the animals walked.

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