How does Ipamorelin work? What is its mechanism of action?

Mecanismo de Acao Ipamorelin ativa the GHS-R1a (ghrelin receptor) on pituitary somatotroph cells with an in vitro EC₅₀ of 1.3 ± 0.4 nmol/L e em vivo ED₅₀ of 2.3 nmol/kg (swine). Binding desencadeia phospholipase C (PLC) ativacao via Gα₁₁/q → IP3 → intracellular Ca²⁺ release → GH vesicle exocytosis — a pathway distinto(a) de GHRH's cAMP signaling.[1][2] Receptor & Signaling Profile TargetActionDownstream Effect GHS-R1a (Ghrelin Receptor)Selective agonistPLC → IP3 → Ca²⁺ → GH vesicle exocytosis cA

What are the research applications of Ipamorelin?

Aplicacoes de Pesquisa Ipamorelin research spans 8+ indication categories across GH physiology, GI motility, musculoskeletal biology, and pain: Selective GH Secretion — Pulsatile GH release sem ACTH/cortisol effects; potency comparable to GHRP-6 but with GHRH-like selectivity.[1] Postoperative Ileus (POI) — Accelerates gastric emptying via GHS-R1a on cholinergic neurons; reduz stomach retention to <25% (vs 78% vehicle). The Phase II trial did not meet its primary endpoint.[4][6] Bone Growth &

What does the research summary say about Ipamorelin?

Resumo da Pesquisa Pre-clinica Key Preclinical Studies EstudoModeloPrincipais AchadosRef Raun et al. (1998)Rats/SwineED₅₀ = 80 nmol/kg (rats), 2.3 nmol/kg (swine); NO ACTH/cortisol even at >200× ED₅₀; primeiro(a) selective GHS[1] Johansen et al. (1999)Adult female rats — 15-day studyLongitudinal bone growth 42→52 µm/day (p<0.0001); dose-dependente[3] Andersen et al. (2001)Rats — GC-induziu catabolism — 100 µg/kg TID × 3moPeriosteal bone formation rate aumentou 4-fold; aumentou maximum tetanic

How should Ipamorelin be stored?

Liofilizado: -18°C to -20°C (estável vários anos); proteja da luz.

What Is Ipamorelin?

Q: What is Ipamorelin?

Visao Geral da Pesquisa Ipamorelin (NNC 26-0161) is a synthetic pentapeptide hormonio do crescimento secretagogue with a sequencia Aib-His-D-2-Nal-D-Phe-Lys-NH₂, developed by Novo Nordisk no(a) mid-1990s by systematic modification of GHRP-1. It acts como um(a) highly selective agonist do(a) GHS-R1a receptor (ghrelin receptor), stimulating potent, pulsatile hormonio do crescimento release sem affecting ACTH, cortisol, FSH, LH, TSH, or prolactin — even at 200× o efeitoive dose.[1][2] Ipamorelin re

Q: What does the research summary say about Ipamorelin?

Resumo da Pesquisa Pre-clinica Key Preclinical Studies EstudoModeloPrincipais AchadosRef Raun et al. (1998)Rats/SwineED₅₀ = 80 nmol/kg (rats), 2.3 nmol/kg (swine); NO ACTH/cortisol even at >200× ED₅₀; primeiro(a) selective GHS[1] Johansen et al. (1999)Adult female rats — 15-day studyLongitudinal bone growth 42→52 µm/day (p<0.0001); dose-dependente[3] Andersen et al. (2001)Rats — GC-induziu catabolism — 100 µg/kg TID × 3moPeriosteal bone formation rate aumentou 4-fold; aumentou maximum tetanic

Q: How should Ipamorelin be stored?

Liofilizado: -18°C to -20°C (estável vários anos); proteja da luz.

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Resposta Rapida

Visao Geral da Pesquisa Ipamorelin (NNC 26-0161) is a synthetic pentapeptide hormonio do crescimento secretagogue with a sequencia Aib-His-D-2-Nal-D-Phe-Lys-NH₂, developed by Novo Nordisk no(a) mid-1990s by systematic modification of GHRP-1. It acts como um(a) highly selective agonist do(a) GHS-R1a ...

Ipamorelin — Quick Facts

Chemical identity and reference data for Ipamorelin
Molecular formula	C38H49N9O5
Molecular weight	711.9 g/mol
InChI key	NEHWBYHLYZGBNO-BVEPWEIPSA-N
PubChem CID	9831659
Storage	Liofilizado: -18°C to -20°C (estável vários anos); proteja da luz.
Cited references	21

Chemical identity from PubChem CID 9831659. For research use only.

21 Citacoes PubMedRevisado por EspecialistasUltima Revisao: fevereiro de 2026

Visao Geral da Pesquisa

Ipamorelin (NNC 26-0161) is a synthetic pentapeptide hormonio do crescimento secretagogue with a sequencia Aib-His-D-2-Nal-D-Phe-Lys-NH₂, developed by Novo Nordisk no(a) mid-1990s by systematic modification of GHRP-1. It acts como um(a) highly selective agonist do(a) GHS-R1a receptor (ghrelin receptor), stimulating potent, pulsatile hormonio do crescimento release sem affecting ACTH, cortisol, FSH, LH, TSH, or prolactin — even at 200× o efeitoive dose.[1][2]

Ipamorelin research spans 8+ indication categories incluindo selective GH secretion, postoperative ileus, bone growth, composicao corporal, secrecao de insulina, pain modulacao, and cancer caquexia. A Phase II ensaio clinico for POI (n=114, NCT00672074) failed to reach significancia estatistica, and desenvolvimento clinico was discontinued.[6][4]

Key distinguishing features include: (1) first selective GHS with GHRH-like specificity, (2) no somatotroph dessensibilizacao upon cronico(a) administration, (3) linear pharmacokinetics in humans (T½ ~2h), and (4) GH-independent adipogenic effects.[1][9]

Editorial Research Note

“Resumo da Pesquisa Pre-clinica Key Preclinical Studies EstudoModeloPrincipais AchadosRef Raun et al.”

Pure U.S. Peptides Research Standards TeamInternal editorial group summarising published peptide research for an audience of qualified independent investigators.

Referencias

Perguntas de Pesquisa Relacionadas

→ Ipamorelin: Mechanism of Action → Ipamorelin: Research Applications → Ipamorelin: Safety Profile & Research Summary → Ipamorelin: Chemical Properties → Storing Ipamorelin: Best Practices

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Este conteudo e fornecido apenas para fins educacionais e informativos. Os produtos sao fornecidos apenas para estudos in vitro e nao sao medicamentos, drogas ou suplementos. Nao aprovado pela FDA para prevenir, tratar ou curar qualquer condicao.