Zdravilo
Tirzepatide: kaj kažejo študije
Tirzepatide je dosegel največje povprečne izgube teže, ki so jih kdajkoli zabeležili za zdravilo v randomizirani študiji o debelosti. Je tudi tisto z najbolj zanimivimi rezultati, ki niso povezani z izgubo teže.
SURMOUNT-1: največji učinek v tem področju
SURMOUNT-1 je randomiziral odrasle z debelostjo in brez sladkorne bolezni na tirzepatide 5, 10 ali 15 mg tedensko, ali placebo, za 72 tednov [8]. Povprečna sprememba teže pri najvišjem odmerku je bila približno −20,9%, pri odmerku 5 mg pa že okoli −15% — kar pomeni, da je najmanjši odmerek tirzepatida približno ustrezal najboljšemu rezultatu semaglutida. Več kot polovica udeležencev pri višjih odmerkih je izgubila vsaj 20% telesne teže.
Nadaljevanje tega programa je podaljšalo spremljanje in poročalo o preprečevanju sladkorne bolezni ob vzdrževanju izgube teže [5], kar je pomembno, ker premakne končni cilj z številke na tehtnici na klinični dogodek.
Učinkovitost izgube teže
Kazenska točka za sladkorno bolezen velja tudi tukaj
SURMOUNT-2 je izvajal enak protokol pri odraslih z debelostjo in sladkorno boleznijo tipa 2 ter našel približno 14,7% povprečno izgubo teže pri najvišjem odmerku [7]. Spet: velik učinek, in spet opazno manjši kot v populaciji brez sladkorne bolezni. Meta-analiza, ki primerja obe zdravili pri sladkorni bolezni tipa 2, postavlja relativno razvrstitev na trdnejša tla [1][3].
| Študija | Populacija | Odmerek | Trajanje | Povprečna sprememba teže |
|---|---|---|---|---|
| SURMOUNT-1 [8] | Debelost, brez sladkorne bolezni | 15 mg | 72 tednov | ≈ −20,9% |
| SURMOUNT-1 [8] | Debelost, brez sladkorne bolezni | 5 mg | 72 tednov | ≈ −15% |
| SURMOUNT-2 [7] | Debelost + sladkorna bolezen tipa 2 | 15 mg | 72 tednov | ≈ −14,7% |
| SURMOUNT-5 [10] | Debelost, neposredno proti semaglutidu | ≤15 mg | 72 tednov | Bolje od semaglutida |
Neposredno premagovanje semaglutida
Posredne primerjave in realni kohorti so to nakazovali že nekaj časa [12], vendar je študija, ki je to razjasnila, primerjala obe zdravili neposredno pri odmerkih za debelost v isti populaciji, tirzepatide pa je zmagal po povprečni izgubi teže s precejšnjo razliko [10]. Pri sladkorni bolezni tipa 2 je SURPASS-2 že pokazal superiornost nad semaglutidom 1 mg tako na glikemičnih kot na težavnih končnih točkah [9].
Rezultati, ki niso povezani z izgubo teže
Dve namenski študiji sta premaknili tirzepatid onkraj debelosti kot kategorije.
- Obstruktivna spalna apneja. Pri odraslih z zmerno do hudo OSA in debelostjo je tirzepatide znatno zmanjšal indeks apneja-hipopneja v primerjavi s placebom [6]. To je prvo farmakološko zdravljenje z randomiziranimi dokazi v stanju, ki je bilo prej skoraj izključno obvladovano s CPAP.
- Srčno popuščanje s ohranjeno frakcijo izmetavanja. Pri HFpEF z debelostjo — fenotip, pri katerem je zelo malo učinkovitih zdravljenj — je tirzepatide izboljšal izide v primerjavi s placebom [4].
- Kardiovaskularni dogodki. Namenska primerjava proti dulaglutidu je poročala o kardiovaskularnih izidih pri sladkorni bolezni tipa 2 [11], kar se pridružuje prej predhodno določenemu meta-analizi, ki ni našla signala kardiovaskularne škode.
Pojavlja se tudi v evropskih smernicah o steatozni bolezni jeter skupaj s semaglutidom [2].
Pogosta vprašanja
Ali sta Mounjaro in Zepbound isto?
Ali je tirzepatid preprosto boljši od semaglutida?
Ali komponenta GIP povzroči dodatno izgubo telesne teže?
Ali moram doseči 15 mg?
Sorodno branje
Reference
Vsaka navedba spodaj povezuje na izvirni recenzirani zapis na PubMedu ali preko DOI. Nič tukaj ni nadomestilo za medicinski nasvet.
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
New Drug: Tirzepatide (Mounjaro(™)) Gettman L · The Senior care pharmacist · 2023 · Journal article DOIPubMed 36751934