Obesity (Silver Spring, Md.)

Real-World Effects of Semaglutide and Tirzepatide Compared to Weight-Loss Surgery

Updated

Abstract

Of 44,025 patients, bariatric surgery was associated with greater weight loss at 1, 2, and 3 years compared to GLP-1 receptor agonists.

  • Total weight loss (TWL) at 1 year post-surgery was 24.4% for sleeve gastrectomy and 29.8% for gastric bypass.
  • In comparison, semaglutide achieved a TWL of 5.4% and tirzepatide reached 9.1% at 1 year.
  • At 3 years, gastric bypass patients experienced a TWL of 28.4%, while semaglutide and tirzepatide reported 7.4% and 10.8%, respectively.
  • With 1 year of continuous GLP-1 receptor agonist use, semaglutide and tirzepatide had TWL of 8.8% and 11.9% at 3 years.
  • Bariatric surgery may provide significantly greater weight loss outcomes compared to injectable GLP-1 receptor agonists over a 3-year period.

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