# Tirzepatide References: Cited Literature and Sources

> Full reference list for Tirzepatide Script — all cited peer-reviewed studies, FDA documents, and clinical trial publications with DOIs, PubMed links, and citation context.

## Tirzepatide references: the full cited literature

All quantitative claims on this site are cited to the publications listed below. References are numbered in order of first appearance across all pages. DOIs and PubMed URLs are provided where available.

## References

[1] Coskun T, et al. 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. 2018. https://pubmed.ncbi.nlm.nih.gov/30473097/
[2] Willard FS, et al. Tirzepatide is an imbalanced and biased dual GIP and GLP-1 receptor agonist. JCI Insight. 2020. https://pubmed.ncbi.nlm.nih.gov/32730231/
[3] Frias JP, et al. Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes. N Engl J Med. 2021. https://pubmed.ncbi.nlm.nih.gov/34170647/
[4] Jastreboff AM, et al. Tirzepatide Once Weekly for the Treatment of Obesity. N Engl J Med. 2022. https://pubmed.ncbi.nlm.nih.gov/35658024/
[5] Aronne LJ, et al. Tirzepatide as Compared with Semaglutide for the Treatment of Obesity. N Engl J Med. 2025. https://pubmed.ncbi.nlm.nih.gov/40353578/
[6] Zeng Q, et al. Safety issues of tirzepatide (pancreatitis and gallbladder or biliary disease) in type 2 diabetes and obesity: a systematic review and meta-analysis. Front Endocrinol (Lausanne). 2023. https://pubmed.ncbi.nlm.nih.gov/37908750/
[7] Farzam K, Patel P. Tirzepatide. StatPearls [Internet], NCBI Bookshelf. 2024. https://www.ncbi.nlm.nih.gov/books/NBK585056/
[8] Heise T, et al. Effects of subcutaneous tirzepatide versus placebo or semaglutide on pancreatic islet function and insulin sensitivity in adults with type 2 diabetes: a multicentre, randomised, double-blind, parallel-arm, phase 1 clinical trial. Lancet Diabetes Endocrinol. 2022. https://pubmed.ncbi.nlm.nih.gov/35468322/
[9] Heise T, et al. Tirzepatide Improved Markers of Islet Cell Function and Insulin Sensitivity. J Clin Endocrinol Metab. 2024. https://pubmed.ncbi.nlm.nih.gov/38252888/
[10] Thomas MK, et al. Tirzepatide as Monotherapy Improved Markers of Beta-cell Function and Insulin Sensitivity in Type 2 Diabetes (SURPASS-1). J Endocr Soc. 2023. https://pubmed.ncbi.nlm.nih.gov/37153701/
[11] Giorgino F, et al. Early Fasting Serum Glucose or Weight Reduction With Tirzepatide and Metabolic Outcomes in People With Type 2 Diabetes: A Post Hoc Analysis of the SURPASS Trials. Diabetes Care. 2025. https://pubmed.ncbi.nlm.nih.gov/40100982/
[12] U.S. Food and Drug Administration. Tirzepatide injection prescribing information (FDA label, type 2 diabetes indication). FDA Drugs@FDA. 2022. https://www.accessdata.fda.gov/drugsatfda_docs/label/2022/215866s000lbl.pdf
[13] Mishra R, et al. Tirzepatide-Induced Gastrointestinal Manifestations: A Systematic Review and Meta-analysis. Cureus. 2023. https://pubmed.ncbi.nlm.nih.gov/37908927/
[14] Shen P, et al. Gastrointestinal adverse events associated with tirzepatide: A bibliometric and pharmacovigilance analysis. PLoS One. 2026. https://pubmed.ncbi.nlm.nih.gov/41894422/
[15] U.S. Food and Drug Administration. FDA approval for chronic weight management (tirzepatide) — press announcement and label record. FDA News & Events. 2023. https://www.fda.gov/news-events/press-announcements/fda-approves-new-medication-chronic-weight-management
[16] Malhotra A, et al. Tirzepatide for the Treatment of Obstructive Sleep Apnea and Obesity. N Engl J Med. 2024. https://pubmed.ncbi.nlm.nih.gov/38912654/
[17] Packer M, et al. Tirzepatide for Heart Failure with Preserved Ejection Fraction and Obesity. N Engl J Med. 2025. https://pubmed.ncbi.nlm.nih.gov/39555826/
[18] Loomba R, et al. Tirzepatide for Metabolic Dysfunction-Associated Steatohepatitis with Liver Fibrosis. N Engl J Med. 2024. https://pubmed.ncbi.nlm.nih.gov/38856224/
[19] Hamamoto Y, et al. Insulin Sensitivity and Beta-Cell Function Following Tirzepatide in Japanese Patients with Type 2 Diabetes: A SURPASS J-mono Analysis. Diabetes Ther. 2025. https://pubmed.ncbi.nlm.nih.gov/39951042/
[20] Mari A, et al. Tirzepatide Treatment and Associated Changes in Beta-Cell Function and Insulin Sensitivity in People With Obesity or Overweight With Prediabetes or Normoglycemia: A Post Hoc Analysis From the SURMOUNT-1 Trial. Diabetes Care. 2025. https://pubmed.ncbi.nlm.nih.gov/40694530/
[21] Urva S, et al. The novel dual glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 (GLP-1) receptor agonist tirzepatide transiently delays gastric emptying similarly to selective long-acting GLP-1 receptor agonists. Diabetes Obes Metab. 2020. https://pubmed.ncbi.nlm.nih.gov/32519795/
[22] Kunutsor SK, et al. Safety and Tolerability of Glucagon-Like Peptide-1 Receptor Agonists: A State-of-the-Art Narrative Review. Drugs. 2026. https://pubmed.ncbi.nlm.nih.gov/41351656/
[23] Gong J, et al. Risk of biliary diseases in patients with type 2 diabetes or obesity treated with tirzepatide: A meta-analysis. J Diabetes Investig. 2025. https://pubmed.ncbi.nlm.nih.gov/39569606/
[24] Nassar M, et al. Decreased risk of recurrent acute pancreatitis with semaglutide and tirzepatide in people with type 2 diabetes or obesity with a history of acute pancreatitis. Diabetes Metab Syndr. 2024. https://pubmed.ncbi.nlm.nih.gov/39332263/
[25] Rasouli N, et al. Tirzepatide for Older Adults with Type 2 Diabetes and Without Obesity: A Post Hoc Analysis of the SURPASS Clinical Trials. Diabetes Ther. 2025. https://pubmed.ncbi.nlm.nih.gov/40016573/
[26] Look M, et al. Body composition changes during weight reduction with tirzepatide in the SURMOUNT-1 study of adults with obesity or overweight. Diabetes Obes Metab. 2025. https://pubmed.ncbi.nlm.nih.gov/39996356/
[27] Locatelli JC, et al. Incretin-Based Weight Loss Pharmacotherapy: Can Resistance Exercise Optimize Changes in Body Composition? Diabetes Care. 2024. https://pubmed.ncbi.nlm.nih.gov/38687506/
[28] Berg S, et al. Discontinuing glucagon-like peptide-1 receptor agonists and body habitus: A systematic review and meta-analysis. Obes Rev. 2025. https://pubmed.ncbi.nlm.nih.gov/40186344/
[29] Aronne LJ, et al. Continued Treatment With Tirzepatide for Maintenance of Weight Reduction in Adults With Obesity: The SURMOUNT-4 Randomized Clinical Trial. JAMA. 2024. https://pubmed.ncbi.nlm.nih.gov/38078870/
[30] Horn DB, et al. 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. 2026. https://pubmed.ncbi.nlm.nih.gov/41284285/
[31] Jalleh RJ, et al. Clinical Consequences of Delayed Gastric Emptying With GLP-1 Receptor Agonists and Tirzepatide. J Clin Endocrinol Metab. 2024. https://pubmed.ncbi.nlm.nih.gov/39418085/
[32] Qazi S, et al. Comparative Efficacy and Safety of Tirzepatide Versus Dulaglutide in Patients with Type 2 Diabetes Mellitus: A Systematic Review and Meta-Analysis. Healthcare (Basel). 2026. https://pubmed.ncbi.nlm.nih.gov/41975852/
[33] Almansour HA, et al. Real-World Safety Concerns of Tirzepatide: A Retrospective Analysis of FAERS Data (2022-2025). Healthcare (Basel). 2025. https://pubmed.ncbi.nlm.nih.gov/41008391/
[34] Hair Loss Associated With Glucagon-Like Peptide-1 (GLP-1) Receptor Agonists. Cureus. 2025. https://pubmed.ncbi.nlm.nih.gov/41111833/
[35] Campbell JE, et al. GIPR/GLP-1R dual agonist therapies for diabetes and weight loss — chemistry, physiology, and clinical applications. Cell Metab. 2023. https://pubmed.ncbi.nlm.nih.gov/37591245/
[36] Kamrul-Hasan ABM, et al. Cardiovascular Outcomes in Adults With Type 2 Diabetes Treated With Tirzepatide: A Systematic Review and Meta-Analysis of Real-World Studies. Endocr Pract. 2026. https://pubmed.ncbi.nlm.nih.gov/41297885/

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An independent editorial record of what the SURPASS and SURMOUNT trials — and the mechanistic studies behind them — actually measured.