Sendagaia
Tirzepatide: probek erakusten dutena
Tirzepatide-k inoiz erregistratutako batez besteko pisu galera handiena eragin du obesitatearen probatu randomizatu batean. Gainera, pisuaren emaitzetatik kanpoko emaitzarik interesgarrienak ditu.
SURMOUNT-1: esparruko efektu tamainarik handiena
SURMOUNT-1ek obesitatearekin eta diabetesik gabe dauden helduak tirzepatide 5, 10 edo 15 mg astero, edo plazebo, 72 astetan randomizatu zituen [8]. Goreneko dosian pisu aldaketa batez bestekoa ≈ −20,9% izan zen, 5 mg dosiak ≈ −15% ingurukoa izan zen — hau da, tirzepatide dosirik txikiena semaglutide-ren emaitzarik onenarekin bat etorri zen. Parte-hartzaileen erdiak baino gehiagok dosi altuetan gutxienez %20ko pisu galera izan zuten.
Programa horren jarraipen bat jarraipena luzatu zuen eta diabetesaren prebentzioari buruzko informazioa eman zuen pisu murrizketa iraunkorrekin batera [5], garrantzitsua delako irizpidea eskalan zenbaki batetik klinika ekitaldi batera mugitzen delako.
Pisu galera eraginkortasuna
Diabetesaren penalizazioa hemen ere aplikatzen da
SURMOUNT-2k obesitatearekin eta 2. motako diabetesarekin dauden helduetan protokolo bera exekutatu zuen eta goreneko dosian %14,7 inguruko batez besteko pisu galera aurkitu zuen [7]. Berriro: efektu handia, eta berriro, diabetesik gabeko populazioan baino nabarmen txikiagoa. 2. motako diabetesaren bi sendagaien arteko konparazio meta-analisiak ordena erlazionala finkatu zuen [1][3].
| Epaiketa | Populazioa | Dosia | Iraupena | Pisu aldaketa batez bestekoa |
|---|---|---|---|---|
| SURMOUNT-1 [8] | Obesitatea, diabetesik gabe | 15 mg | 72 aste | ≈ −20,9% |
| SURMOUNT-1 [8] | Obesitatea, diabetesik gabe | 5 mg | 72 aste | ≈ −15% |
| SURMOUNT-2 [7] | Obesitatea + 2. motako diabetes | 15 mg | 72 aste | ≈ −14,7% |
| SURMOUNT-5 [10] | Obesitatea, aurrez aurreko semaglutide-rekin | ≤15 mg | 72 aste | Semaglutide baino hobea |
Semaglutide gainditzea zuzenean
Konparazio zehatzak eta errealitateko koorteek bide hau erakutsi zuten denbora luzean [12], baina irtenbide bat eman zuen proba honek bi sendagaiak aurrez aurreko obesitate dosietan konparatu zituen populazio berean, eta tirzepatide-k batez besteko pisu galera handiz irabazi zuen [10]. 2. motako diabetesaren kasuan, SURPASS-2k semaglutide 1 mg-ren gaineko nagusitasuna erakutsi zuen bi glikemiko eta pisu irizpideetan [9].
Pisua ez den emaitzak
Tirzepatide-k obesitatearen kategorian aurrera egin zuen bi probak egin ziren.
- Obstruktiboa lo apneoa. OSA moderatu-tamaina handiko eta obesitatearekin dauden helduetan, tirzepatide-k apneoa-hipopneoa indizea plazeboaren aurka nabarmen murriztu zuen [6]. Hori da aurrez CPAP bidez kudeatu den egoera batean froga randomizatuarekin lortutako lehen tratamendu farmakologikoa.
- Bihotz-gutxiegitasun ejection frakzioa mantenduta. HFpEF obesitatearekin — tratamendu eraginkor gutxi dituen fenotipoa — tirzepatide-k plazeboaren aurka emaitzak hobetzen lagundu zuen [4].
- Bihotz eta odol-hodietako ekitaldiak. Dulaglutide-ren aurkako konparazio dedikatua 2. motako diabetesaren kasuan bihotz eta odol-hodietako emaitzak iragarri zituen [11], aurreko meta-analisi zehatzak aurkitu zuen bihotz eta odol-hodietako kaltearen seinalerik ez zela.
Europako gidalerroetan ere agertzen da steatotiko gibeleko gaixotasunaren inguruan semaglutide-rekin [2].
Ohiko galderak
Mounjaro Zepbound bera al da?
Tirzepatida soilik semaglutida baino hobea al da?
GIP osagaiak eragiten al du pisu-galera gehigarria?
15 mg-ra iritsi behar al dut?
Lotutako irakurketa
Erreferentziak
Hemen azpiko aipamen guztiak PubMed-en edo DOI bidezko jatorrizko peer-reviewed erregistroari lotzen diote. Hemen ez dago mediku aholkurik ordezkatzeko.
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Efficacy and Safety of Glucagon-Like Peptide-1 Receptor Agonists for Weight Loss Among Adults Without Diabetes : A Systematic Review of Randomized Controlled Trials Moiz A, Filion KB, Toutounchi H, et al. · Annals of internal medicine · 2025 · Systematic review DOIPubMed 39761578
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Subcutaneously administered tirzepatide vs semaglutide for adults with type 2 diabetes: a systematic review and network meta-analysis of randomised controlled trials Karagiannis T, Malandris K, Avgerinos I, et al. · Diabetologia · 2024 · Meta-analysis DOIPubMed 38613667Full text
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EASL-EASD-EASO Clinical Practice Guidelines on the management of metabolic dysfunction-associated steatotic liver disease (MASLD): Executive Summary Diabetologia · 2024 · Clinical guideline DOIPubMed 38869512Full text
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EASL-EASD-EASO Clinical Practice Guidelines on the management of metabolic dysfunction-associated steatotic liver disease (MASLD) Journal of hepatology · 2024 · Clinical guideline DOIPubMed 38851997
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Comparative effectiveness of GLP-1 receptor agonists on glycaemic control, body weight, and lipid profile for type 2 diabetes: systematic review and network meta-analysis Yao H, Zhang A, Li D, et al. · BMJ (Clinical research ed.) · 2024 · Meta-analysis DOIPubMed 38286487Full text
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Risk of major adverse cardiovascular events and stroke associated with treatment with GLP-1 or the dual GIP/GLP-1 receptor agonist tirzepatide for type 2 diabetes: A systematic review and meta-analysis Stefanou MI, Theodorou A, Malhotra K, et al. · European stroke journal · 2024 · Meta-analysis DOIPubMed 38400569Full text
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Tirzepatide did not impact metabolic adaptation in people with obesity, but increased fat oxidation Ravussin E, Sanchez-Delgado G, Martin CK, et al. · Cell metabolism · 2025 · Randomised controlled trial DOIPubMed 40203836
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Efficacy and safety of tirzepatide in children and adolescents with type 2 diabetes (SURPASS-PEDS): a randomised, double-blind, placebo-controlled, phase 3 trial Hannon TS, Chao LC, Barrientos-Pérez M, et al. · Lancet (London, England) · 2025 · Randomised controlled trial DOIPubMed 40975112
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Efficacy and safety of once-weekly tirzepatide in Japanese patients with obesity disease (SURMOUNT-J): a multicentre, randomised, double-blind, placebo-controlled phase 3 trial Kadowaki T, Kiyosue A, Shingaki T, et al. · The lancet. Diabetes & endocrinology · 2025 · Randomised controlled trial DOIPubMed 40031941
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Tirzepatide and muscle composition changes in people with type 2 diabetes (SURPASS-3 MRI): a post-hoc analysis of a randomised, open-label, parallel-group, phase 3 trial Sattar N, Neeland IJ, Dahlqvist Leinhard O, et al. · The lancet. Diabetes & endocrinology · 2025 · Randomised controlled trial DOIPubMed 40318682
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Tirzepatide for Heart Failure with Preserved Ejection Fraction and Obesity Packer M, Zile MR, Kramer CM, et al. · The New England journal of medicine · 2025 · Randomised controlled trial DOIPubMed 39555826
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Tirzepatide for Obesity Treatment and Diabetes Prevention Jastreboff AM, le Roux CW, Stefanski A, et al. · The New England journal of medicine · 2025 · Randomised controlled trial DOIPubMed 39536238
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Body composition changes during weight reduction with tirzepatide in the SURMOUNT-1 study of adults with obesity or overweight Look M, Dunn JP, Kushner RF, et al. · Diabetes, obesity & metabolism · 2025 · Randomised controlled trial DOIPubMed 39996356Full text
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Continued Treatment With Tirzepatide for Maintenance of Weight Reduction in Adults With Obesity: The SURMOUNT-4 Randomized Clinical Trial Aronne LJ, Sattar N, Horn DB, et al. · JAMA · 2024 · Randomised controlled trial DOIPubMed 38078870Full text
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Tirzepatide for Weight Reduction in Chinese Adults With Obesity: The SURMOUNT-CN Randomized Clinical Trial Zhao L, Cheng Z, Lu Y, et al. · JAMA · 2024 · Randomised controlled trial DOIPubMed 38819983Full text
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Tirzepatide for the Treatment of Obstructive Sleep Apnea and Obesity Malhotra A, Grunstein RR, Fietze I, et al. · The New England journal of medicine · 2024 · Randomised controlled trial DOIPubMed 38912654Full text
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Tirzepatide vs Insulin Lispro Added to Basal Insulin in Type 2 Diabetes: The SURPASS-6 Randomized Clinical Trial Rosenstock J, Frías JP, Rodbard HW, et al. · JAMA · 2023 · Randomised controlled trial DOIPubMed 37786396Full text
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Tirzepatide once weekly for the treatment of obesity in people with type 2 diabetes (SURMOUNT-2): a double-blind, randomised, multicentre, placebo-controlled, phase 3 trial Garvey WT, Frias JP, Jastreboff AM, et al. · Lancet (London, England) · 2023 · Randomised controlled trial DOIPubMed 37385275
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Tirzepatide Reduces Appetite, Energy Intake, and Fat Mass in People With Type 2 Diabetes Heise T, DeVries JH, Urva S, et al. · Diabetes care · 2023 · Randomised controlled trial DOIPubMed 36857477Full text
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Effect of Subcutaneous Tirzepatide vs Placebo Added to Titrated Insulin Glargine on Glycemic Control in Patients With Type 2 Diabetes: The SURPASS-5 Randomized Clinical Trial Dahl D, Onishi Y, Norwood P, et al. · JAMA · 2022 · Randomised controlled trial DOIPubMed 35133415Full text
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Tirzepatide Once Weekly for the Treatment of Obesity Jastreboff AM, Aronne LJ, Ahmad NN, et al. · The New England journal of medicine · 2022 · Randomised controlled trial DOIPubMed 35658024
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Efficacy and safety of a novel dual GIP and GLP-1 receptor agonist tirzepatide in patients with type 2 diabetes (SURPASS-1): a double-blind, randomised, phase 3 trial Rosenstock J, Wysham C, Frías JP, et al. · Lancet (London, England) · 2021 · Randomised controlled trial DOIPubMed 34186022
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Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes Frías JP, Davies MJ, Rosenstock J, et al. · The New England journal of medicine · 2021 · Randomised controlled trial DOIPubMed 34170647
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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 Coskun T, Sloop KW, Loghin C, et al. · Molecular metabolism · 2018 · Randomised controlled trial DOIPubMed 30473097Full text
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Tirzepatide as Compared with Semaglutide for the Treatment of Obesity Aronne LJ, Horn DB, le Roux CW, et al. · The New England journal of medicine · 2025 · Clinical trial DOIPubMed 40353578
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Cardiovascular Outcomes with Tirzepatide versus Dulaglutide in Type 2 Diabetes Nicholls SJ, Pavo I, Bhatt DL, et al. · The New England journal of medicine · 2025 · Clinical trial DOIPubMed 41406444
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Tirzepatide, a dual GIP/GLP-1 receptor co-agonist for the treatment of type 2 diabetes with unmatched effectiveness regrading glycaemic control and body weight reduction Nauck MA, D'Alessio DA · Cardiovascular diabetology · 2022 · Review DOIPubMed 36050763Full text
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Semaglutide and Tirzepatide in Patients With Heart Failure With Preserved Ejection Fraction Krüger N, Schneeweiss S, Fuse K, et al. · JAMA · 2025 · Journal article DOIPubMed 40886075Full text
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Semaglutide vs Tirzepatide for Weight Loss in Adults With Overweight or Obesity Rodriguez PJ, Goodwin Cartwright BM, Gratzl S, et al. · JAMA internal medicine · 2024 · Journal article DOIPubMed 38976257Full text
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New Drug: Tirzepatide (Mounjaro(™)) Gettman L · The Senior care pharmacist · 2023 · Journal article DOIPubMed 36751934