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Tirzepatida vs Retatrutida

Ambas son moléculas de referencia en investigación de señalización de incretinas, y la diferencia está en cuántos receptores activan. La tirzepatida (LY3298176) es un agonista dual de GIP y GLP-1; la retatrutida (LY3437943) suma un tercer brazo, el receptor de glucagón (GCG), como triagonista.

Comparación de especificaciones entre Tirzepatida, Retatrutida
EspecificaciónVial de TirzepatidaTirzepatidaVial de RetatrutidaRetatrutida
MecanismoAgonista dual · GIP / GLP-1Triagonista · GIP / GLP-1 / glucagón
CódigoLY3298176LY3437943
Fórmula molecularC225H348N48O68C221H342N46O68
Masa molar4813.5 Da4731.33 Da
Pureza≥99%≥99%
Presentaciones10 mg / 20 mg / 30 mg / 60 mg10 mg / 15 mg / 20 mg / 30 mg / 40 mg
Preciodesde $900MXNdesde $1,700MXN
ÁreaSeñalización metabólicaSeñalización metabólica
/ Evidencia y estado
Evidencia y estado de Tirzepatida, Retatrutida
EvidenciaTirzepatidaRetatrutida
EstadoEn catálogo (RUO)En catálogo (RUO)
Nivel de evidenciaAA
Estudio claveCoskun T (2018)Coskun T (2022)

Nivel de evidencia: A revisiones o ensayos en humanos replicados · B ensayo humano temprano · C estudios en animales · D in vitro o mecanismo. Referencias primarias indexadas en PubMed; contexto de investigación, sin implicar uso humano.

Diferencia principal entre Tirzepatida y Retatrutida

La distinción central es el tercer receptor: la retatrutida añade la señalización de glucagón a la acción GIP/GLP-1 de la tirzepatida. La primera permite estudiar tres vías metabólicas a la vez; la segunda es el referente dual.

Criterios de comparación de Tirzepatida y Retatrutida

La tabla separa identidad molecular, mecanismo, masa molar, evidencia publicada, presentaciones y disponibilidad. Una coincidencia en el área de investigación no vuelve equivalentes dos compuestos: secuencia, receptor, modelo experimental y documentación del lote se revisan por separado.

Uso exclusivo de investigación (RUO). No apto para consumo humano o animal.

Comparativas relacionadas con Tirzepatida y Retatrutida

Referencias de Tirzepatida y Retatrutida

  1. Coskun T, Sloop KW, Loghin C, et al. (2018). LY3298176, a novel dual GIP and GLP-1 receptor agonist for the treatment of type 2 diabetes mellitus: From discovery to clinical proof of concept. Mol Metab. doi:10.1016/j.molmet.2018.09.009
  2. Sun B, Willard FS, Feng D, et al. (2022). Structural determinants of dual incretin receptor agonism by tirzepatide. Proc Natl Acad Sci U S A. doi:10.1073/pnas.2116506119
  3. Samms RJ, Christe ME, Collins KA, et al. (2021). GIPR agonism mediates weight-independent insulin sensitization by tirzepatide in obese mice. J Clin Invest. doi:10.1172/JCI146353
  4. Heise T, Mari A, DeVries JH, et al. (2022). Effects of subcutaneous tirzepatide versus placebo or semaglutide on pancreatic islet function and insulin sensitivity in adults with type 2 diabetes. Lancet Diabetes Endocrinol. doi:10.1016/S2213-8587(22)00085-7
  5. Willard FS, Douros JD, Gabe MBN, et al. (2020). Tirzepatide is an imbalanced and biased dual GIP and GLP-1 receptor agonist. JCI Insight. doi:10.1172/jci.insight.140532
  6. Rees TA, Buttle BJ, Tasma Z, et al. (2024). Tirzepatide, GIP(1-42) and GIP(1-30) display unique signaling profiles at two common GIP receptor variants, E354 and Q354. Front Pharmacol. doi:10.3389/fphar.2024.1463313
  7. Zou X, He Y, Gao Y, Wang J, Zhang JZH (2025). Understanding the activation mechanism of GLP-1R/GIPR by dual agonist Tirzepatide via molecular dynamics and protein-peptide binding. Int J Biol Macromol. doi:10.1016/j.ijbiomac.2025.146141
  8. Frías JP, Davies MJ, Rosenstock J, et al. (2021). Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes. N Engl J Med. doi:10.1056/NEJMoa2107519
  9. Jastreboff AM, Aronne LJ, Ahmad NN, et al. (2022). Tirzepatide Once Weekly for the Treatment of Obesity. N Engl J Med. doi:10.1056/NEJMoa2206038
  10. Aronne LJ, Bade Horn D, le Roux CW, et al. (2025). Tirzepatide as Compared with Semaglutide for the Treatment of Obesity. N Engl J Med. doi:10.1056/NEJMoa2416394
  11. Horn DB, Linetzky B, Davies MJ, et al. (2026). Cardiometabolic Parameter Change by Weight Regain on Tirzepatide Withdrawal in Adults With Obesity: A Post Hoc Analysis of the SURMOUNT-4 Trial. JAMA Intern Med. doi:10.1001/jamainternmed.2025.6112
  12. Regmi A, Aihara E, Christe ME, et al. (2024). Tirzepatide modulates the regulation of adipocyte nutrient metabolism through long-acting activation of the GIP receptor. Cell Metab. doi:10.1016/j.cmet.2024.05.010
  13. Aronne LJ, Sattar N, Horn DB, et al. (2024). Continued Treatment With Tirzepatide for Maintenance of Weight Reduction in Adults With Obesity: The SURMOUNT-4 Randomized Clinical Trial. JAMA. doi:10.1001/jama.2023.24945
  14. Loomba R, Hartman ML, Lawitz EJ, et al. (2024). Tirzepatide for Metabolic Dysfunction-Associated Steatohepatitis with Liver Fibrosis. N Engl J Med. doi:10.1056/NEJMoa2401943
  15. Malhotra A, Grunstein RR, Fietze I, et al. (2024). Tirzepatide for the Treatment of Obstructive Sleep Apnea and Obesity. N Engl J Med. doi:10.1056/NEJMoa2404881
  16. Packer M, Zile MR, Kramer CM, et al. (2025). Tirzepatide for Heart Failure with Preserved Ejection Fraction and Obesity. N Engl J Med. doi:10.1056/NEJMoa2410027
  17. Nicholls SJ, Pavo I, Bhatt DL, et al. (2025). Cardiovascular Outcomes with Tirzepatide versus Dulaglutide in Type 2 Diabetes. N Engl J Med. doi:10.1056/NEJMoa2505928
  18. Look M, Dunn JP, Kushner RF, et al. (2025). Body composition changes during weight reduction with tirzepatide in the SURMOUNT-1 study of adults with obesity or overweight. Diabetes Obes Metab. doi:10.1111/dom.16275
  19. Horn DB, Aronne LJ, Wharton S, et al. (2026). Tirzepatide for maintenance of bodyweight reduction in people with obesity in the USA (SURMOUNT-MAINTAIN): a multicentre, double-blind, randomised, placebo-controlled trial. Lancet. doi:10.1016/S0140-6736(26)00656-2
  20. Pratley RE, Denham DS, Trivedi R, et al. (2026). Apitegromab for lean mass preservation during tirzepatide-induced weight loss: a randomized, double-blind, placebo-controlled phase 2 trial. Nat Med. doi:10.1038/s41591-026-04440-4
  21. Coskun T, Sloop KW, Loghin C, et al. (2022). LY3437943, a novel triple GIP, GLP-1, and glucagon receptor agonist for glycemic control and weight loss: From discovery to clinical proof of concept. Cell Metab. doi:10.1016/j.cmet.2022.07.013
  22. Jastreboff AM, Kaplan LM, Frías JP, et al. (2023). Triple-Hormone-Receptor Agonist Retatrutide for Obesity — A Phase 2 Trial. N Engl J Med. doi:10.1056/NEJMoa2301972
  23. Rosenstock J, Frias J, Jastreboff AM, et al. (2023). Retatrutide, a GIP, GLP-1 and glucagon receptor agonist, for people with type 2 diabetes: a randomised, double-blind, placebo and active-controlled, parallel-group, phase 2 trial. Lancet. doi:10.1016/S0140-6736(23)01053-X
  24. Urva S, Coskun T, Loh MT, et al. (2022). LY3437943, a novel triple GIP, GLP-1, and glucagon receptor agonist in people with type 2 diabetes: a phase 1b, multiple-ascending dose trial. Lancet. doi:10.1016/S0140-6736(22)02033-5
  25. Pearson MJ, Willency JA, Lin Y, et al. (2026). Retatrutide and lipid and metabolite profiles in participants with obesity with or without type 2 diabetes. J Clin Endocrinol Metab. doi:10.1210/clinem/dgag201
  26. Sanyal AJ, Kaplan LM, Frias JP, et al. (2024). Triple hormone receptor agonist retatrutide for metabolic dysfunction-associated steatotic liver disease: a randomized phase 2a trial. Nat Med. doi:10.1038/s41591-024-03018-2
  27. Coskun T, Wu Q, Schloot NC, et al. (2025). Effects of retatrutide on body composition in people with type 2 diabetes: a substudy of a phase 2 randomised trial. Lancet Diabetes Endocrinol. doi:10.1016/S2213-8587(25)00092-0
  28. Wen Y, Lemen D, Lin Y, et al. (2025). Decreases in circulating ANGPTL3/8 concentrations following retatrutide treatment parallel reductions in serum lipids. Diabetes Obes Metab. doi:10.1111/dom.16661
  29. Li W, Zhou Q, Cong Z, et al. (2024). Structural insights into the triple agonism at GLP-1R, GIPR and GCGR manifested by retatrutide. Cell Discov. doi:10.1038/s41421-024-00700-0
  30. Bajaj HS, Welch M, Shah P, et al. (2026). Efficacy and safety of retatrutide, a GIP, GLP-1, and glucagon receptor agonist, in people with type 2 diabetes and inadequate glycaemic control with diet and exercise (TRANSCEND-T2D-1): a double-blind, randomised, phase 3 trial. Lancet. doi:10.1016/S0140-6736(26)00967-0

Literatura primaria indexada en PubMed. Referencias de contexto de investigación; no implican uso clínico ni humano.