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Ipamorelin Store

A research digest on ipamorelin, the first selective growth hormone secretagogue.

What each paper studied

How do Ipamorelin references help you check a claim?

Each finding's number leads you to its original paper. You can see who received which drug. The journal details identify the study for you.

What to check before treating a finding as proof

A mark such as [1] or [2] points to the numbered paper below. I'd check which drug was tested and whether the study involved people or animals before judging your treatment hopes, because your health questions need results that actually concern your care. A study of CJC-1295 alone can't prove an ipamorelin mixture helps you. PMID and DOI are lookup numbers for finding papers, rather than test results you need to interpret.

What each named study found in people, animals, or dishes

  1. Johansen PB, Nowak J, Skjaerbaek C, Flyvbjerg A, Andreassen TT, Wilken M, Orskov H. Rats' leg bones lengthened faster after ipamorelin. Your bone strength wasn't tested. Growth Horm IGF Res. 1999;9(2):106-113. PMID 10373343. doi:10.1054/ghir.1999.9998
  1. Svensson J, Lall S, Dickson SL, Bengtsson BA, Romer J, Ahnfelt-Ronne I, Ohlsson C, Jansson JO. Female rats had larger bones containing more hard mineral after ipamorelin or the older drug GH-releasing peptide-6. That isn't a test of your fracture risk. J Endocrinol. 2000;165(3):569-577. PMID 10828840. doi:10.1677/joe.0.1650569
  1. Andersen NB, Malmlof K, Johansen PB, Andreassen TT, Ortoft G, Oxlund H. Adult rats rebuilt more bone with ipamorelin while taking a steroid that slowed bone repair. People weren't tested for that protection. Growth Horm IGF Res. 2001;11(5):266-272. PMID 11735244. doi:10.1054/ghir.2001.0239
  1. Raun K, Hansen BS, Johansen NL, Thogersen H, Madsen K, Ankersen M, Andersen PH. Early tests released growth hormone without extra cortisol or prolactin. Cortisol has a role in stress; prolactin helps milk production in breasts. Eur J Endocrinol. 1998;139(5):552-561. PMID 9849822. doi:10.1530/eje.0.1390552
  1. Beck DE, Sweeney WB, McCarter MD; Ipamorelin 201 Study Group. After surgery removed part of the bowel, patients received ipamorelin or placebo. Placebo contained no ipamorelin. Researchers assigned groups by chance and compared recovery, without proving faster recovery from the drug. Int J Colorectal Dis. 2014;29(12):1527-1534. PMID 25331030. doi:10.1007/s00384-014-2030-8 (NCT00672074)
  1. Gobburu JV, Agerso H, Jusko WJ, Ynddal L. In healthy men, ipamorelin briefly increased growth-hormone release. Researchers also measured falling blood drug levels, without establishing relief of any illness for you. Pharm Res. 1999;16(9):1412-1416. PMID 10496658. doi:10.1023/a:1018955126402
  1. Jimenez-Reina L, Canete R, de la Torre MJ, Bernal G. Young female rats received repeated ipamorelin. Researchers then tested hormone release from the rats' gland cells in a dish. Histol Histopathol. 2002;17(3):707-714. PMID 12168778. doi:10.14670/HH-17.707
  1. Johansen PB, Hansen KT, Andersen JV, Johansen NL. Researchers compared how much drug reached blood after ipamorelin and related drugs. The tests included drug delivered through the nose. Xenobiotica. 1998;28(11):1083-1091. PMID 9879640. doi:10.1080/004982598238976
  1. Malmlof K, Johansen PB, Haahr PM, Wilken M, Oxlund H. Rats released growth hormone after ipamorelin entered a vein. Methylprednisolone, a steroid, didn't prevent that release. Growth Horm IGF Res. 1999;9(6):396-403. PMID 10629165. doi:10.1054/ghir.1999.0128
  1. Venkova K, Mann W, Nelson R, Greenwood-Van Meerveld B. Rats' bowels moved more slowly after surgery. Researchers tested whether ipamorelin helped food move through the bowel again. J Pharmacol Exp Ther. 2009;329(3):1110-1116. PMID 19289567. doi:10.1124/jpet.108.149211
  1. Chan CB, et al. Fish gland cells let stored growth hormone out after contact with the drug in a dish. Researchers didn't find more signs of new hormone being made. Comp Biochem Physiol C Toxicol Pharmacol. 2004;139(1-3):77-85. PMID 15556068. doi:10.1016/j.cca.2004.09.008
  1. Teichman SL, Neale A, Lawrence B, Gagnon C, Castaigne JP, Frohman LA. Healthy adults had lasting hormone rises after CJC-1295 alone. That separate drug test didn't measure an ipamorelin mixture. J Clin Endocrinol Metab. 2006;91(3):799-805. PMID 16352683. doi:10.1210/jc.2005-1536 (CJC-1295 alone was tested, so the result can't establish your response to ipamorelin)
  1. Adeghate E, Ponery AS. Researchers put pancreas pieces from diabetic rats and healthy rats in a dish. After adding ipamorelin, the pieces released more insulin. The pancreas makes insulin, the hormone helping the body take sugar from blood. Neuro Endocrinol Lett. 2004;25(6):403-406. PMID 15665799. (no DOI lookup number; search for the PMID number on PubMed, a free website listing medical papers)
  1. Lu Z, Ngan MP, Liu JYH, Yang L, Tu L, Chan SW, Giuliano C, Lovati E, Pietra C, Rudd JA. Ferrets receiving cisplatin for cancer lost less weight when given anamorelin or ipamorelin. Anamorelin also reduced vomiting by acting in the brain. The paper calls these drugs receptor 1a agonists, meaning they attach to cell spots used by the hormone that brings hunger and start a response. Physiol Behav. 2024;284:114644. PMID 39043357. doi:10.1016/j.physbeh.2024.114644
  1. Mayfield CK, et al. Doctors reviewed peptide drugs given as shots for bone, joint, and sports injuries; these drugs contain short strings of the building blocks found in proteins. Some findings came only from animals. Am J Sports Med. 2026. PMID 41476424. doi:10.1177/03635465251357593
  1. Lawrence CB, Snape AC, Baudoin FM, Luckman SM. Animals ate more after the hunger hormone or related drugs. Parts of the brain involved in appetite became more active. Endocrinology. 2002;143(1):155-162. PMID 11751604. doi:10.1210/endo.143.1.8561
  1. Lall S, Tung LY, Ohlsson C, Jansson JO, Dickson SL. After drugs intended to release growth hormone, animals gained fat. Fat gain also occurred without growth hormone, leaving weight-loss claims uncertain. Biochem Biophys Res Commun. 2001;280(1):132-138. PMID 11162489. doi:10.1006/bbrc.2000.4065
  1. Adeghate E, Ponery AS. These were the same rats as in the earlier pancreas entry, so this finding comes from one study. Researchers put pancreas pieces from diabetic rats and healthy rats in a dish. After adding ipamorelin, the pieces released more insulin. The pancreas makes insulin, the hormone helping the body take sugar from blood. Neuro Endocrinol Lett. 2004;25(6):403-406. PMID 15665799. (no DOI lookup number; search for the PMID number on PubMed, a free website listing medical papers)
  1. Stokes AH, Falls JG, Yoon L, Cariello N, Faiola B, Colton HM, Jordan HL, Berridge BR. A drug other than ipamorelin damaged rats' hearts. Researchers compared ways to detect that damage early. Int J Toxicol. 2015;34(2):151-161. PMID 25722321. doi:10.1177/1091581815573029 (GSK894281 was tested, rather than ipamorelin; GHS-R1a agonist means a drug that activates a cell spot used by the hormone that brings hunger)
  1. Johansen PB, Nowak J, Skjaerbaek C, Flyvbjerg A, Andreassen TT, Wilken M, Orskov H. Ipamorelin, a new growth-hormone-releasing peptide, induces longitudinal bone growth in rats. Growth Horm IGF Res. 1999;9(2):106-113. ↗
  2. Svensson J, Lall S, Dickson SL, Bengtsson BA, Romer J, Ahnfelt-Ronne I, Ohlsson C, Jansson JO. The GH secretagogues ipamorelin and GH-releasing peptide-6 increase bone mineral content in adult female rats. J Endocrinol. 2000;165(3):569-577. ↗
  3. Andersen NB, Malmlof K, Johansen PB, Andreassen TT, Ortoft G, Oxlund H. The growth hormone secretagogue ipamorelin counteracts glucocorticoid-induced decrease in bone formation of adult rats. Growth Horm IGF Res. 2001;11(5):266-272. ↗
  4. Raun K, Hansen BS, Johansen NL, Thogersen H, Madsen K, Ankersen M, Andersen PH. Ipamorelin, the first selective growth hormone secretagogue. Eur J Endocrinol. 1998;139(5):552-561. ↗
  5. Beck DE, Sweeney WB, McCarter MD; Ipamorelin 201 Study Group. Prospective, randomized, controlled, proof-of-concept study of the ghrelin mimetic ipamorelin for the management of postoperative ileus in bowel resection patients. Int J Colorectal Dis. 2014;29(12):1527-1534. (NCT00672074) ↗
  6. Gobburu JV, Agerso H, Jusko WJ, Ynddal L. Pharmacokinetic-pharmacodynamic modeling of ipamorelin, a growth hormone releasing peptide, in human volunteers. Pharm Res. 1999;16(9):1412-1416. ↗
  7. Jimenez-Reina L, Canete R, de la Torre MJ, Bernal G. Influence of chronic treatment with the growth hormone secretagogue Ipamorelin, in young female rats: somatotroph response in vitro. Histol Histopathol. 2002;17(3):707-714. ↗
  8. Johansen PB, Hansen KT, Andersen JV, Johansen NL. Pharmacokinetic evaluation of ipamorelin and other peptidyl growth hormone secretagogues with emphasis on nasal absorption. Xenobiotica. 1998;28(11):1083-1091. ↗
  9. Malmlof K, Johansen PB, Haahr PM, Wilken M, Oxlund H. Methylprednisolone does not inhibit the release of growth hormone after intravenous injection of a novel growth hormone secretagogue in rats. Growth Horm IGF Res. 1999;9(6):445-450. ↗
  10. Venkova K, Mann W, Nelson R, Greenwood-Van Meerveld B. Efficacy of ipamorelin, a novel ghrelin mimetic, in a rodent model of postoperative ileus. J Pharmacol Exp Ther. 2009;329(3):1110-1116. ↗
  11. Chan CB, et al. Stimulation of growth hormone secretion from seabream pituitary cells in primary culture by growth hormone secretagogues is independent of growth hormone transcription. Comp Biochem Physiol C Toxicol Pharmacol. 2004;139(1-3):77-85. ↗
  12. Teichman SL, Neale A, Lawrence B, Gagnon C, Castaigne JP, Frohman LA. Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults. J Clin Endocrinol Metab. 2006;91(3):799-805. (study compound is CJC-1295, not ipamorelin) ↗
  13. Adeghate E, Ponery AS. Mechanism of ipamorelin-evoked insulin release from the pancreas of normal and diabetic rats. Neuro Endocrinol Lett. 2004;25(6):403-406. (no DOI registered; verified via PubMed) ↗
  14. Lu Z, Ngan MP, Liu JYH, Yang L, Tu L, Chan SW, Giuliano C, Lovati E, Pietra C, Rudd JA. The growth hormone secretagogue receptor 1a agonists, anamorelin and ipamorelin, inhibit cisplatin-induced weight loss in ferrets: Anamorelin also exhibits anti-emetic effects via a central mechanism. Physiol Behav. 2024;284:114644. ↗
  15. Mayfield CK, et al. Injectable Peptide Therapy: A Primer for Orthopaedic and Sports Medicine Physicians. Am J Sports Med. 2026. ↗
  16. Lawrence CB, Snape AC, Baudoin FM, Luckman SM. Acute central ghrelin and GH secretagogues induce feeding and activate brain appetite centers. Endocrinology. 2002;143(1):155-162. ↗
  17. Lall S, Tung LY, Ohlsson C, Jansson JO, Dickson SL. Growth hormone (GH)-independent stimulation of adiposity by GH secretagogues. Biochem Biophys Res Commun. 2001;280(1):132-138. ↗
  18. Adeghate E, Ponery AS. Mechanism of ipamorelin-evoked insulin release from the pancreas of normal and diabetic rats. Neuro Endocrinol Lett. 2004;25(6):403-406. (no DOI registered; verified via PubMed) ↗
  19. Stokes AH, Falls JG, Yoon L, Cariello N, Faiola B, Colton HM, Jordan HL, Berridge BR. Integrated approach to early detection of cardiovascular toxicity induced by a ghrelin receptor agonist. Int J Toxicol. 2015;34(2):151-161. (study compound is GSK894281, a related GHS-R1a agonist, not ipamorelin) ↗